最近由于项目需求，需要对实体框架内表之间的关系进行处理，主要功能要求是通过一表名，返回其在实体框架内的所有关系表、主外键及每个字段的属性。先简单描述我解决这个问题从开始到最后的分析实现过程。EF框架实际是由XML模型建立的。如图一所示：
图1 EF文件
将EF框架EDM文件（TestModel.edmx文件）使用xml编辑器打开，可以看到其XML结构，其结构主要如下所示：
EDM是实体数据关系映射的XML文件。EDM主要有三部分构成 CSDL，SSDL，MSL。
- CSDL表面的是实体数据模型结构，
- SSDL表示对应的数据存储的架构，
- CSDL实体与SSDL数据结构的关系通过MSL映射实现。
EDM是通过ADO.NET 实体数据模型生成的。简单的了解了EF框架的本质之后，首先选择了XML的处理方式（开始不了解元数据，之后会有描述），因为这是EF框架的根源，从根源入手，肯定会解决问题。在实现第一次方案之前，有必要对数据库设计进行简要的说明，在数据库设计的时候需要对字段，表设计时相关属性要尽量完善，包括说明、字段长度、是否为空等，在这有一个问题就是我们直接在数据库中写字段、表说明是无法生成EF框架内相应说明的，所有我们需要使用EFTSQLDocumentation.Generator.exe工具，具体使用方法，此处不再赘述。需要在EDM中显示字段，表的中文说明的，使用此工具即可，我们主要是为了在MVC的view生成时，可以直接生成中文标签，才需要此功能。
通过以上描述，我们基本上知道了，我们就是要通过关系映射XML文件完成我们的最初目标，最初我们使用了Xpath，XQuery技术对XML文件进行处理，基本达到了最初的要求，但是这种方式，处理起来太繁琐，后来又尝试了Linq to Entity的方式对xml进行处理，这种方式其实也是换汤不换药。使用直接操作xml的读取方式的确很直接，很容易。但是随着测试完成，数据库不断扩容，眼前的XML文件日渐庞大，想对每个节点进行操作，简直苦不堪言！思来想去，如果有一套直接操作EDM元数据的API就好了，元数据就是用来定义数据的数据，之前尽量避免操作元数据，但是对于EF框架确实是一个很好的选择。废话一大堆，也不知道表述清楚没！有了此想法，就开始各种博客园，之后终于发现了正道，qouoww写了一篇探索EDM（Entity Framework）的EDM元数据对我启发很深，果断苦海无涯，回头是岸。
下面附上TestModel.edmx文件，及使用读取XML的xmlhelper操作类：如果要验证程序，可以自己建立一个.edmx文件，然后使用xmlhelper类进行处理查看效果。下一次将讲述使用操作元数据的方式处理EF。
TestModel.edmx文件：
1: <?xml version="1.0" encoding="utf-8"?>
2: <edmx:Edmx Version="2.0" xmlns:edmx="http://schemas.microsoft.com/ado/2008/10/edmx">
3: <!-- EF Runtime content -->
4: <edmx:Runtime>
5: <!-- SSDL content -->
6: <edmx:StorageModels>
7: <Schema Namespace="testModel.Store" Alias="Self" Provider="System.Data.SqlClient" ProviderManifestToken="2008" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" xmlns="http://schemas.microsoft.com/ado/2009/02/edm/ssdl">
8: <EntityContainer Name="testModelStoreContainer">
9: <EntitySet Name="SB_QXD" EntityType="testModel.Store.SB_QXD" store:Type="Tables" Schema="dbo" />
10: <EntitySet Name="SB_QXD_BPBJ" EntityType="testModel.Store.SB_QXD_BPBJ" store:Type="Tables" Schema="dbo" />
11: <EntitySet Name="SB_QXD_SBXX" EntityType="testModel.Store.SB_QXD_SBXX" store:Type="Tables" Schema="dbo" />
12: <EntitySet Name="SB_QXD_WXXM" EntityType="testModel.Store.SB_QXD_WXXM" store:Type="Tables" Schema="dbo" />
13: <EntitySet Name="SB_SBGH" EntityType="testModel.Store.SB_SBGH" store:Type="Tables" Schema="dbo" />
14: <EntitySet Name="SB_SBGH_SBXX" EntityType="testModel.Store.SB_SBGH_SBXX" store:Type="Tables" Schema="dbo" />
15: <EntitySet Name="SysDepartment" EntityType="testModel.Store.SysDepartment" store:Type="Tables" Schema="dbo" />
16: <EntitySet Name="SysPerson" EntityType="testModel.Store.SysPerson" store:Type="Tables" Schema="dbo" />
17: <AssociationSet Name="FK_SB_QXD_B_REFERENCE_SB_QXD" Association="testModel.Store.FK_SB_QXD_B_REFERENCE_SB_QXD">
18: <End Role="SB_QXD" EntitySet="SB_QXD" />
19: <End Role="SB_QXD_BPBJ" EntitySet="SB_QXD_BPBJ" />
20: </AssociationSet>
21: <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSDEPAR" Association="testModel.Store.FK_SB_QXD_REFERENCE_SYSDEPAR">
22: <End Role="SysDepartment" EntitySet="SysDepartment" />
23: <End Role="SB_QXD" EntitySet="SB_QXD" />
24: </AssociationSet>
25: <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSPERSO" Association="testModel.Store.FK_SB_QXD_REFERENCE_SYSPERSO">
26: <End Role="SysPerson" EntitySet="SysPerson" />
27: <End Role="SB_QXD" EntitySet="SB_QXD" />
28: </AssociationSet>
29: <AssociationSet Name="FK_SB_QXD_S_REFERENCE_SB_QXD" Association="testModel.Store.FK_SB_QXD_S_REFERENCE_SB_QXD">
30: <End Role="SB_QXD" EntitySet="SB_QXD" />
31: <End Role="SB_QXD_SBXX" EntitySet="SB_QXD_SBXX" />
32: </AssociationSet>
33: <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SB_QXD" Association="testModel.Store.FK_SB_QXD_W_REFERENCE_SB_QXD">
34: <End Role="SB_QXD" EntitySet="SB_QXD" />
35: <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
36: </AssociationSet>
37: <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SYSPERSO" Association="testModel.Store.FK_SB_QXD_W_REFERENCE_SYSPERSO">
38: <End Role="SysPerson" EntitySet="SysPerson" />
39: <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
40: </AssociationSet>
41: <AssociationSet Name="FK_SB_SBGH__REFERENCE_SB_SBGH" Association="testModel.Store.FK_SB_SBGH__REFERENCE_SB_SBGH">
42: <End Role="SB_SBGH" EntitySet="SB_SBGH" />
43: <End Role="SB_SBGH_SBXX" EntitySet="SB_SBGH_SBXX" />
44: </AssociationSet>
45: <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSDEPAR" Association="testModel.Store.FK_SB_SBGH_REFERENCE_SYSDEPAR">
46: <End Role="SysDepartment" EntitySet="SysDepartment" />
47: <End Role="SB_SBGH" EntitySet="SB_SBGH" />
48: </AssociationSet>
49: <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSPERSO" Association="testModel.Store.FK_SB_SBGH_REFERENCE_SYSPERSO">
50: <End Role="SysPerson" EntitySet="SysPerson" />
51: <End Role="SB_SBGH" EntitySet="SB_SBGH" />
52: </AssociationSet>
53: <AssociationSet Name="FK_SYSDEPAR_部门与部门_SYSDEPAR" Association="testModel.Store.FK_SYSDEPAR_部门与部门_SYSDEPAR">
54: <End Role="SysDepartment" EntitySet="SysDepartment" />
55: <End Role="SysDepartment1" EntitySet="SysDepartment" />
56: </AssociationSet>
57: <AssociationSet Name="FK_SYSPERSO_部门与人员_SYSDEPAR" Association="testModel.Store.FK_SYSPERSO_部门与人员_SYSDEPAR">
58: <End Role="SysDepartment" EntitySet="SysDepartment" />
59: <End Role="SysPerson" EntitySet="SysPerson" />
60: </AssociationSet>
61: </EntityContainer>
62: <EntityType Name="SB_QXD">
63: <Key>
64: <PropertyRef Name="ID" />
65: </Key>
66: <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
67: <Property Name="QXD_RWRQ" Type="datetime" />
68: <Property Name="QXD_ZDRQ" Type="datetime" />
69: <Property Name="QXD_DJBM" Type="nvarchar" MaxLength="50" />
70: <Property Name="QXD_WXFS" Type="nvarchar" MaxLength="50" />
71: <Property Name="BM_ID_QXBM" Type="nvarchar" MaxLength="36" />
72: <Property Name="RY_ID_QXR" Type="nvarchar" MaxLength="36" />
73: <Property Name="QXD_DJLY" Type="nvarchar" MaxLength="50" />
74: <Property Name="QXD_BZ" Type="nvarchar" MaxLength="200" />
75: <Property Name="LYDJ_ID" Type="nvarchar" MaxLength="36" />
76: </EntityType>
77: <EntityType Name="SB_QXD_BPBJ">
78: <Key>
79: <PropertyRef Name="ID" />
80: </Key>
81: <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
82: <Property Name="WLKP_ID" Type="nvarchar" MaxLength="36" />
83: <Property Name="WLKP_GGXH" Type="nvarchar" MaxLength="100" />
84: <Property Name="BPBJ_YL" Type="real" />
85: <Property Name="WLKP_JLDW" Type="nvarchar" MaxLength="50" />
86: <Property Name="BPBJ_BZ" Type="nvarchar" MaxLength="200" />
87: <Property Name="QXD_ID" Type="nvarchar" MaxLength="36" />
88: </EntityType>
89: <EntityType Name="SB_QXD_SBXX">
90: <Key>
91: <PropertyRef Name="ID" />
92: </Key>
93: <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
94: <Property Name="SBKP_BM" Type="nvarchar" MaxLength="36" />
95: <Property Name="SBKP_MC" Type="nvarchar" MaxLength="50" />
96: <Property Name="SBKP_GGXH" Type="nvarchar" MaxLength="100" />
97: <Property Name="SBXX_WXGS" Type="real" />
98: <Property Name="SBXX_TJGS" Type="real" />
99: <Property Name="SBXX_SQKSRQ" Type="datetime" />
100: <Property Name="SBXX_SQJSRQ" Type="datetime" />
101: <Property Name="SBXX_JHKSRQ" Type="datetime" />
102: <Property Name="SBXX_JHJSRQ" Type="datetime" />
103: <Property Name="SBXX_SJKSRQ" Type="datetime" />
104: <Property Name="SBXX_SJJSRQ" Type="datetime" />
105: <Property Name="SBXX_WXNR" Type="nvarchar" MaxLength="1000" />
106: <Property Name="SBXX_JTQX" Type="nvarchar" MaxLength="1000" />
107: <Property Name="SBXX_QXYY" Type="nvarchar" MaxLength="1000" />
108: <Property Name="SBXX_BZ" Type="nvarchar" MaxLength="200" />
109: <Property Name="QXD_DI" Type="nvarchar" MaxLength="36" />
110: </EntityType>
111: <EntityType Name="SB_QXD_WXXM">
112: <Key>
113: <PropertyRef Name="ID" />
114: </Key>
115: <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
116: <Property Name="WXXM_ID" Type="nvarchar" MaxLength="36" />
117: <Property Name="WXXM_MC" Type="nvarchar" MaxLength="50" />
118: <Property Name="WXXM_YQ" Type="nvarchar" MaxLength="1500" />
119: <Property Name="WXXM_SM" Type="nvarchar" MaxLength="1500" />
120: <Property Name="WXXM_MBLX" Type="nvarchar" MaxLength="100" />
121: <Property Name="WXXM_MBZ" Type="nvarchar" MaxLength="100" />
122: <Property Name="WXXM_MBSX" Type="nvarchar" MaxLength="100" />
123: <Property Name="WXXM_MBXX" Type="nvarchar" MaxLength="100" />
124: <Property Name="RY_ID" Type="nvarchar" MaxLength="36" />
125: <Property Name="WXXM_BZ" Type="nvarchar" MaxLength="200" />
126: <Property Name="QXD_ID" Type="nvarchar" MaxLength="36" />
127: </EntityType>
128: <EntityType Name="SB_SBGH">
129: <Key>
130: <PropertyRef Name="ID" />
131: </Key>
132: <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
133: <Property Name="SBGH_YWRQ" Type="datetime" />
134: <Property Name="SBGH_DJRQ" Type="datetime" />
135: <Property Name="SBGH_DJBH" Type="nvarchar" MaxLength="50" />
136: <Property Name="SBGH_ZLBZ" Type="nvarchar" MaxLength="36" />
137: <Property Name="WLDW_ID_ZLDW" Type="nvarchar" MaxLength="50" />
138: <Property Name="BM_ID_JB" Type="nvarchar" MaxLength="36" />
139: <Property Name="RY_ID_JB" Type="nvarchar" MaxLength="36" />
140: <Property Name="SBZL_YJ" Type="real" />
141: <Property Name="SBZL_DJLY" Type="nvarchar" MaxLength="50" />
142: <Property Name="SBZL_BZ" Type="nvarchar" MaxLength="200" />
143: <Property Name="LYDJ_ID" Type="nvarchar" MaxLength="36" />
144: </EntityType>
145: <EntityType Name="SB_SBGH_SBXX">
146: <Key>
147: <PropertyRef Name="ID" />
148: </Key>
149: <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
150: <Property Name="SBKP_ID" Type="nvarchar" MaxLength="36" />
151: <Property Name="SBKP_MC" Type="nvarchar" MaxLength="50" />
152: <Property Name="SBKP_GGXH" Type="nvarchar" MaxLength="100" />
153: <Property Name="SBXX_KSRQ" Type="datetime" />
154: <Property Name="SBXX_JSRQ" Type="datetime" />
155: <Property Name="SBXX_SL" Type="real" />
156: <Property Name="SBXX_DJDW" Type="nvarchar" MaxLength="50" />
157: <Property Name="SBXX_DJ" Type="real" />
158: <Property Name="SBXX_SFSH" Type="bit" />
159: <Property Name="SBXX_JE" Type="real" />
160: <Property Name="SBXX_YJ" Type="real" />
161: <Property Name="SBXX_FCJH" Type="real" />
162: <Property Name="SBXX_BZ" Type="nvarchar" MaxLength="200" />
163: <Property Name="SBZL_ID" Type="nvarchar" MaxLength="36" />
164: </EntityType>
165: <EntityType Name="SysDepartment">
166: <Key>
167: <PropertyRef Name="Id" />
168: </Key>
169: <Property Name="Id" Type="nvarchar" Nullable="false" MaxLength="36" />
170: <Property Name="Name" Type="nvarchar" Nullable="false" MaxLength="200" />
171: <Property Name="ParentId" Type="nvarchar" MaxLength="36" />
172: <Property Name="Address" Type="nvarchar" MaxLength="200" />
173: <Property Name="Sort" Type="int" />
174: <Property Name="Remark" Type="nvarchar" />
175: <Property Name="CreateTime" Type="datetime" />
176: <Property Name="CreatePerson" Type="nvarchar" MaxLength="200" />
177: <Property Name="UpdateTime" Type="datetime" />
178: <Property Name="UpdatePerson" Type="nvarchar" MaxLength="200" />
179: </EntityType>
180: <EntityType Name="SysPerson">
181: <Key>
182: <PropertyRef Name="Id" />
183: </Key>
184: <Property Name="Id" Type="nvarchar" Nullable="false" MaxLength="36" />
185: <Property Name="Name" Type="nvarchar" Nullable="false" MaxLength="200" />
186: <Property Name="MyName" Type="nvarchar" MaxLength="200" />
187: <Property Name="Password" Type="nvarchar" Nullable="false" MaxLength="200" />
188: <Property Name="SurePassword" Type="nvarchar" MaxLength="200" />
189: <Property Name="Sex" Type="nvarchar" MaxLength="200" />
190: <Property Name="SysDepartmentId" Type="nvarchar" MaxLength="36" />
191: <Property Name="Position" Type="nvarchar" MaxLength="200" />
192: <Property Name="MobilePhoneNumber" Type="nvarchar" MaxLength="200" />
193: <Property Name="PhoneNumber" Type="nvarchar" MaxLength="200" />
194: <Property Name="Province" Type="nvarchar" MaxLength="200" />
195: <Property Name="City" Type="nvarchar" MaxLength="200" />
196: <Property Name="Village" Type="nvarchar" MaxLength="200" />
197: <Property Name="Address" Type="nvarchar" MaxLength="200" />
198: <Property Name="EmailAddress" Type="nvarchar" MaxLength="200" />
199: <Property Name="Remark" Type="decimal" />
200: <Property Name="State" Type="nvarchar" MaxLength="200" />
201: <Property Name="CreateTime" Type="datetime" />
202: <Property Name="CreatePerson" Type="nvarchar" MaxLength="200" />
203: <Property Name="UpdateTime" Type="datetime" />
204: <Property Name="UpdatePerson" Type="nvarchar" MaxLength="200" />
205: <Property Name="Version" Type="timestamp" StoreGeneratedPattern="Computed" />
206: </EntityType>
207: <Association Name="FK_SB_QXD_B_REFERENCE_SB_QXD">
208: <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="0..1" />
209: <End Role="SB_QXD_BPBJ" Type="testModel.Store.SB_QXD_BPBJ" Multiplicity="*" />
210: <ReferentialConstraint>
211: <Principal Role="SB_QXD">
212: <PropertyRef Name="ID" />
213: </Principal>
214: <Dependent Role="SB_QXD_BPBJ">
215: <PropertyRef Name="QXD_ID" />
216: </Dependent>
217: </ReferentialConstraint>
218: </Association>
219: <Association Name="FK_SB_QXD_REFERENCE_SYSDEPAR">
220: <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
221: <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="*" />
222: <ReferentialConstraint>
223: <Principal Role="SysDepartment">
224: <PropertyRef Name="Id" />
225: </Principal>
226: <Dependent Role="SB_QXD">
227: <PropertyRef Name="BM_ID_QXBM" />
228: </Dependent>
229: </ReferentialConstraint>
230: </Association>
231: <Association Name="FK_SB_QXD_REFERENCE_SYSPERSO">
232: <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="0..1" />
233: <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="*" />
234: <ReferentialConstraint>
235: <Principal Role="SysPerson">
236: <PropertyRef Name="Id" />
237: </Principal>
238: <Dependent Role="SB_QXD">
239: <PropertyRef Name="RY_ID_QXR" />
240: </Dependent>
241: </ReferentialConstraint>
242: </Association>
243: <Association Name="FK_SB_QXD_S_REFERENCE_SB_QXD">
244: <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="0..1" />
245: <End Role="SB_QXD_SBXX" Type="testModel.Store.SB_QXD_SBXX" Multiplicity="*" />
246: <ReferentialConstraint>
247: <Principal Role="SB_QXD">
248: <PropertyRef Name="ID" />
249: </Principal>
250: <Dependent Role="SB_QXD_SBXX">
251: <PropertyRef Name="QXD_DI" />
252: </Dependent>
253: </ReferentialConstraint>
254: </Association>
255: <Association Name="FK_SB_QXD_W_REFERENCE_SB_QXD">
256: <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="0..1" />
257: <End Role="SB_QXD_WXXM" Type="testModel.Store.SB_QXD_WXXM" Multiplicity="*" />
258: <ReferentialConstraint>
259: <Principal Role="SB_QXD">
260: <PropertyRef Name="ID" />
261: </Principal>
262: <Dependent Role="SB_QXD_WXXM">
263: <PropertyRef Name="QXD_ID" />
264: </Dependent>
265: </ReferentialConstraint>
266: </Association>
267: <Association Name="FK_SB_QXD_W_REFERENCE_SYSPERSO">
268: <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="0..1" />
269: <End Role="SB_QXD_WXXM" Type="testModel.Store.SB_QXD_WXXM" Multiplicity="*" />
270: <ReferentialConstraint>
271: <Principal Role="SysPerson">
272: <PropertyRef Name="Id" />
273: </Principal>
274: <Dependent Role="SB_QXD_WXXM">
275: <PropertyRef Name="RY_ID" />
276: </Dependent>
277: </ReferentialConstraint>
278: </Association>
279: <Association Name="FK_SB_SBGH__REFERENCE_SB_SBGH">
280: <End Role="SB_SBGH" Type="testModel.Store.SB_SBGH" Multiplicity="0..1" />
281: <End Role="SB_SBGH_SBXX" Type="testModel.Store.SB_SBGH_SBXX" Multiplicity="*" />
282: <ReferentialConstraint>
283: <Principal Role="SB_SBGH">
284: <PropertyRef Name="ID" />
285: </Principal>
286: <Dependent Role="SB_SBGH_SBXX">
287: <PropertyRef Name="SBZL_ID" />
288: </Dependent>
289: </ReferentialConstraint>
290: </Association>
291: <Association Name="FK_SB_SBGH_REFERENCE_SYSDEPAR">
292: <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
293: <End Role="SB_SBGH" Type="testModel.Store.SB_SBGH" Multiplicity="*" />
294: <ReferentialConstraint>
295: <Principal Role="SysDepartment">
296: <PropertyRef Name="Id" />
297: </Principal>
298: <Dependent Role="SB_SBGH">
299: <PropertyRef Name="BM_ID_JB" />
300: </Dependent>
301: </ReferentialConstraint>
302: </Association>
303: <Association Name="FK_SB_SBGH_REFERENCE_SYSPERSO">
304: <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="0..1" />
305: <End Role="SB_SBGH" Type="testModel.Store.SB_SBGH" Multiplicity="*" />
306: <ReferentialConstraint>
307: <Principal Role="SysPerson">
308: <PropertyRef Name="Id" />
309: </Principal>
310: <Dependent Role="SB_SBGH">
311: <PropertyRef Name="RY_ID_JB" />
312: </Dependent>
313: </ReferentialConstraint>
314: </Association>
315: <Association Name="FK_SYSDEPAR_部门与部门_SYSDEPAR">
316: <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
317: <End Role="SysDepartment1" Type="testModel.Store.SysDepartment" Multiplicity="*" />
318: <ReferentialConstraint>
319: <Principal Role="SysDepartment">
320: <PropertyRef Name="Id" />
321: </Principal>
322: <Dependent Role="SysDepartment1">
323: <PropertyRef Name="ParentId" />
324: </Dependent>
325: </ReferentialConstraint>
326: </Association>
327: <Association Name="FK_SYSPERSO_部门与人员_SYSDEPAR">
328: <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
329: <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="*" />
330: <ReferentialConstraint>
331: <Principal Role="SysDepartment">
332: <PropertyRef Name="Id" />
333: </Principal>
334: <Dependent Role="SysPerson">
335: <PropertyRef Name="SysDepartmentId" />
336: </Dependent>
337: </ReferentialConstraint>
338: </Association>
339: </Schema></edmx:StorageModels>
340: <!-- CSDL content -->
341: <edmx:ConceptualModels>
342: <Schema Namespace="testModel" Alias="Self" xmlns:annotation="http://schemas.microsoft.com/ado/2009/02/edm/annotation" xmlns="http://schemas.microsoft.com/ado/2008/09/edm">
343: <EntityContainer Name="testEntities" annotation:LazyLoadingEnabled="true">
344: <EntitySet Name="SB_QXD" EntityType="testModel.SB_QXD" />
345: <EntitySet Name="SB_QXD_BPBJ" EntityType="testModel.SB_QXD_BPBJ" />
346: <EntitySet Name="SB_QXD_SBXX" EntityType="testModel.SB_QXD_SBXX" />
347: <EntitySet Name="SB_QXD_WXXM" EntityType="testModel.SB_QXD_WXXM" />
348: <AssociationSet Name="FK_SB_QXD_B_REFERENCE_SB_QXD" Association="testModel.FK_SB_QXD_B_REFERENCE_SB_QXD">
349: <End Role="SB_QXD" EntitySet="SB_QXD" />
350: <End Role="SB_QXD_BPBJ" EntitySet="SB_QXD_BPBJ" />
351: </AssociationSet>
352: <AssociationSet Name="FK_SB_QXD_S_REFERENCE_SB_QXD" Association="testModel.FK_SB_QXD_S_REFERENCE_SB_QXD">
353: <End Role="SB_QXD" EntitySet="SB_QXD" />
354: <End Role="SB_QXD_SBXX" EntitySet="SB_QXD_SBXX" />
355: </AssociationSet>
356: <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SB_QXD" Association="testModel.FK_SB_QXD_W_REFERENCE_SB_QXD">
357: <End Role="SB_QXD" EntitySet="SB_QXD" />
358: <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
359: </AssociationSet>
360: <EntitySet Name="SB_SBGH" EntityType="testModel.SB_SBGH" />
361: <EntitySet Name="SB_SBGH_SBXX" EntityType="testModel.SB_SBGH_SBXX" />
362: <AssociationSet Name="FK_SB_SBGH__REFERENCE_SB_SBGH" Association="testModel.FK_SB_SBGH__REFERENCE_SB_SBGH">
363: <End Role="SB_SBGH" EntitySet="SB_SBGH" />
364: <End Role="SB_SBGH_SBXX" EntitySet="SB_SBGH_SBXX" />
365: </AssociationSet>
366: <EntitySet Name="SysDepartment" EntityType="testModel.SysDepartment" />
367: <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSDEPAR" Association="testModel.FK_SB_QXD_REFERENCE_SYSDEPAR">
368: <End Role="SysDepartment" EntitySet="SysDepartment" />
369: <End Role="SB_QXD" EntitySet="SB_QXD" />
370: </AssociationSet>
371: <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSDEPAR" Association="testModel.FK_SB_SBGH_REFERENCE_SYSDEPAR">
372: <End Role="SysDepartment" EntitySet="SysDepartment" />
373: <End Role="SB_SBGH" EntitySet="SB_SBGH" />
374: </AssociationSet>
375: <AssociationSet Name="FK_SYSDEPAR_部门与部门_SYSDEPAR" Association="testModel.FK_SYSDEPAR_部门与部门_SYSDEPAR">
376: <End Role="SysDepartment" EntitySet="SysDepartment" />
377: <End Role="SysDepartment1" EntitySet="SysDepartment" />
378: </AssociationSet>
379: <EntitySet Name="SysPerson" EntityType="testModel.SysPerson" />
380: <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSPERSO" Association="testModel.FK_SB_QXD_REFERENCE_SYSPERSO">
381: <End Role="SysPerson" EntitySet="SysPerson" />
382: <End Role="SB_QXD" EntitySet="SB_QXD" />
383: </AssociationSet>
384: <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SYSPERSO" Association="testModel.FK_SB_QXD_W_REFERENCE_SYSPERSO">
385: <End Role="SysPerson" EntitySet="SysPerson" />
386: <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
387: </AssociationSet>
388: <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSPERSO" Association="testModel.FK_SB_SBGH_REFERENCE_SYSPERSO">
389: <End Role="SysPerson" EntitySet="SysPerson" />
390: <End Role="SB_SBGH" EntitySet="SB_SBGH" />
391: </AssociationSet>
392: <AssociationSet Name="FK_SYSPERSO_部门与人员_SYSDEPAR" Association="testModel.FK_SYSPERSO_部门与人员_SYSDEPAR">
393: <End Role="SysDepartment" EntitySet="SysDepartment" />
394: <End Role="SysPerson" EntitySet="SysPerson" />
395: </AssociationSet>
396: </EntityContainer>
397: <EntityType Name="SB_QXD">
398: <Key>
399: <PropertyRef Name="ID" />
400: </Key>
401: <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" >
402: <Documentation>
403: <Summary>主键</Summary>
404: </Documentation>
405: </Property>
406: <Property Name="QXD_RWRQ" Type="DateTime" />
407: <Property Name="QXD_ZDRQ" Type="DateTime" />
408: <Property Name="QXD_DJBM" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
409: <Property Name="QXD_WXFS" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
410: <Property Name="BM_ID_QXBM" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
411: <Property Name="RY_ID_QXR" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
412: <Property Name="QXD_DJLY" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
413: <Property Name="QXD_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
414: <Property Name="LYDJ_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
415: <NavigationProperty Name="SB_QXD_BPBJ" Relationship="testModel.FK_SB_QXD_B_REFERENCE_SB_QXD" FromRole="SB_QXD" ToRole="SB_QXD_BPBJ" />
416: <NavigationProperty Name="SB_QXD_SBXX" Relationship="testModel.FK_SB_QXD_S_REFERENCE_SB_QXD" FromRole="SB_QXD" ToRole="SB_QXD_SBXX" />
417: <NavigationProperty Name="SB_QXD_WXXM" Relationship="testModel.FK_SB_QXD_W_REFERENCE_SB_QXD" FromRole="SB_QXD" ToRole="SB_QXD_WXXM" />
418: <NavigationProperty Name="SysDepartment" Relationship="testModel.FK_SB_QXD_REFERENCE_SYSDEPAR" FromRole="SB_QXD" ToRole="SysDepartment" />
419: <NavigationProperty Name="SysPerson" Relationship="testModel.FK_SB_QXD_REFERENCE_SYSPERSO" FromRole="SB_QXD" ToRole="SysPerson" />
420: </EntityType>
421: <EntityType Name="SB_QXD_BPBJ">
422: <Key>
423: <PropertyRef Name="ID" />
424: </Key>
425: <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" />
426: <Property Name="WLKP_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
427: <Property Name="WLKP_GGXH" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
428: <Property Name="BPBJ_YL" Type="Single" />
429: <Property Name="WLKP_JLDW" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
430: <Property Name="BPBJ_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
431: <Property Name="QXD_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
432: <NavigationProperty Name="SB_QXD" Relationship="testModel.FK_SB_QXD_B_REFERENCE_SB_QXD" FromRole="SB_QXD_BPBJ" ToRole="SB_QXD" />
433: </EntityType>
434: <EntityType Name="SB_QXD_SBXX">
435: <Key>
436: <PropertyRef Name="ID" />
437: </Key>
438: <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" />
439: <Property Name="SBKP_BM" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
440: <Property Name="SBKP_MC" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
441: <Property Name="SBKP_GGXH" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
442: <Property Name="SBXX_WXGS" Type="Single" />
443: <Property Name="SBXX_TJGS" Type="Single" />
444: <Property Name="SBXX_SQKSRQ" Type="DateTime" />
445: <Property Name="SBXX_SQJSRQ" Type="DateTime" />
446: <Property Name="SBXX_JHKSRQ" Type="DateTime" />
447: <Property Name="SBXX_JHJSRQ" Type="DateTime" />
448: <Property Name="SBXX_SJKSRQ" Type="DateTime" />
449: <Property Name="SBXX_SJJSRQ" Type="DateTime" />
450: <Property Name="SBXX_WXNR" Type="String" MaxLength="1000" Unicode="true" FixedLength="false" />
451: <Property Name="SBXX_JTQX" Type="String" MaxLength="1000" Unicode="true" FixedLength="false" />
452: <Property Name="SBXX_QXYY" Type="String" MaxLength="1000" Unicode="true" FixedLength="false" />
453: <Property Name="SBXX_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
454: <Property Name="QXD_DI" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
455: <NavigationProperty Name="SB_QXD" Relationship="testModel.FK_SB_QXD_S_REFERENCE_SB_QXD" FromRole="SB_QXD_SBXX" ToRole="SB_QXD" />
456: </EntityType>
457: <EntityType Name="SB_QXD_WXXM">
458: <Key>
459: <PropertyRef Name="ID" />
460: </Key>
461: <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" />
462: <Property Name="WXXM_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
463: <Property Name="WXXM_MC" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
464: <Property Name="WXXM_YQ" Type="String" MaxLength="1500" Unicode="true" FixedLength="false" />
465: <Property Name="WXXM_SM" Type="String" MaxLength="1500" Unicode="true" FixedLength="false" />
466: <Property Name="WXXM_MBLX" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
467: <Property Name="WXXM_MBZ" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
468: <Property Name="WXXM_MBSX" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
469: <Property Name="WXXM_MBXX" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
470: <Property Name="RY_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
471: <Property Name="WXXM_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
472: <Property Name="QXD_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
473: <NavigationProperty Name="SB_QXD" Relationship="testModel.FK_SB_QXD_W_REFERENCE_SB_QXD" FromRole="SB_QXD_WXXM" ToRole="SB_QXD" />
474: <NavigationProperty Name="SysPerson" Relationship="testModel.FK_SB_QXD_W_REFERENCE_SYSPERSO" FromRole="SB_QXD_WXXM" ToRole="SysPerson" />
475: </EntityType>
476: <Association Name="FK_SB_QXD_B_REFERENCE_SB_QXD">
477: <End Role="SB_QXD" Type="testModel.SB_QXD" Multiplicity="0..1" />
478: <End Role="SB_QXD_BPBJ" Type="testModel.SB_QXD_BPBJ" Multiplicity="*" />
479: <ReferentialConstraint>
480: <Principal Role="SB_QXD">
481: <PropertyRef Name="ID" />
482: </Principal>
483: <Dependent Role="SB_QXD_BPBJ">
484: <PropertyRef Name="QXD_ID" />
485: </Dependent>
486: </ReferentialConstraint>
487: </Association>
488: <Association Name="FK_SB_QXD_S_REFERENCE_SB_QXD">
489: <End Role="SB_QXD" Type="testModel.SB_QXD" Multiplicity="0..1" />
490: <End Role="SB_QXD_SBXX" Type="testModel.SB_QXD_SBXX" Multiplicity="*" />
491: <ReferentialConstraint>
492: <Principal Role="SB_QXD">
493: <PropertyRef Name="ID" />
494: </Principal>
495: <Dependent Role="SB_QXD_SBXX">
496: <PropertyRef Name="QXD_DI" />
497: </Dependent>
498: </ReferentialConstraint>
499: </Association>
500: <Association Name="FK_SB_QXD_W_REFERENCE_SB_QXD">
501: <End Role="SB_QXD" Type="testModel.SB_QXD" Multiplicity="0..1" />
502: <End Role="SB_QXD_WXXM" Type="testModel.SB_QXD_WXXM" Multiplicity="*" />
503: <ReferentialConstraint>
504: <Principal Role="SB_QXD">
505: <PropertyRef Name="ID" />
506: </Principal>
507: <Dependent Role="SB_QXD_WXXM">
508: <PropertyRef Name="QXD_ID" />
509: </Dependent>
510: </ReferentialConstraint>
511: </Association>
512: <EntityType Name="SB_SBGH">
513: <Key>
514: <PropertyRef Name="ID" />
515: </Key>
516: <Property Type="String" Name="ID" Nullable="false" MaxLength="36" FixedLength="false" Unicode="true" />
517: <Property Type="DateTime" Name="SBGH_YWRQ" />
518: <Property Type="DateTime" Name="SBGH_DJRQ" />
519: <Property Type="String" Name="SBGH_DJBH" MaxLength="50" FixedLength="false" Unicode="true" />
520: <Property Type="String" Name="SBGH_ZLBZ" MaxLength="36" FixedLength="false" Unicode="true" />
521: <Property Type="String" Name="WLDW_ID_ZLDW" MaxLength="50" FixedLength="false" Unicode="true" />
522: <Property Type="String" Name="BM_ID_JB" MaxLength="36" FixedLength="false" Unicode="true" />
523: <Property Type="String" Name="RY_ID_JB" MaxLength="36" FixedLength="false" Unicode="true" />
524: <Property Type="Single" Name="SBZL_YJ" />
525: <Property Type="String" Name="SBZL_DJLY" MaxLength="50" FixedLength="false" Unicode="true" />
526: <Property Type="String" Name="SBZL_BZ" MaxLength="200" FixedLength="false" Unicode="true" />
527: <Property Type="String" Name="LYDJ_ID" MaxLength="36" FixedLength="false" Unicode="true" />
528: <NavigationProperty Name="SB_SBGH_SBXX" Relationship="testModel.FK_SB_SBGH__REFERENCE_SB_SBGH" FromRole="SB_SBGH" ToRole="SB_SBGH_SBXX" />
529: <NavigationProperty Name="SysDepartment" Relationship="testModel.FK_SB_SBGH_REFERENCE_SYSDEPAR" FromRole="SB_SBGH" ToRole="SysDepartment" />
530: <NavigationProperty Name="SysPerson" Relationship="testModel.FK_SB_SBGH_REFERENCE_SYSPERSO" FromRole="SB_SBGH" ToRole="SysPerson" />
531: </EntityType>
532: <EntityType Name="SB_SBGH_SBXX">
533: <Key>
534: <PropertyRef Name="ID" />
535: </Key>
536: <Property Type="String" Name="ID" Nullable="false" MaxLength="36" FixedLength="false" Unicode="true" />
537: <Property Type="String" Name="SBKP_ID" MaxLe
jx 标签: XmlHelper
1: using System;
2: using System.Collections.Generic;
3: using System.Linq;
4: using System.Web;
5:
6: using System.Xml;
7: using System.Data.Metadata.Edm;
8:
9: namespace MvcApplication3.Models.Helper
10: {
11: public class XMLHelper
12: {
13: /// <summary>
14: /// 获取主表从表外键关系
15: /// </summary>
16: /// <param name="FK"></param>
17: /// <returns></returns>
18: public SortedList<string, string> GetTableRelation(string FK, HttpServerUtilityBase Server)
19: {
20: XmlDocument doc = new XmlDocument();
21: string strr = Server.MapPath("~\\Models\\TestModel.edmx");
22: doc.Load(strr);
23: XmlNodeList nodes = doc.GetElementsByTagName("Association");
24: SortedList<string, string> Relationlist = new SortedList<string, string>();
25:
26: foreach (XmlNode nodevalue in nodes)
27: {
28: if (nodevalue.Attributes["Name"].Value == FK && Relationlist.Count.Equals(0))
29: {
30:
31: string str = nodevalue.FirstChild.Attributes["Multiplicity"].Value;
32: string str1 = nodevalue.FirstChild.NextSibling.Attributes["Multiplicity"].Value;
33: string str2 = nodevalue.LastChild.FirstChild.Attributes["Role"].Value;
34: string str3 = nodevalue.LastChild.FirstChild.FirstChild.Attributes["Name"].Value;
35: string str4 = nodevalue.LastChild.LastChild.Attributes["Role"].Value;
36: string str5 = nodevalue.LastChild.LastChild.FirstChild.Attributes["Name"].Value;
37: Relationlist.Add("MainRelation", str);
38: Relationlist.Add("SubRelation", str1);
39: Relationlist.Add("MainTable", str2);
40: Relationlist.Add("MainPropertyName", str3);
41: Relationlist.Add("SubTable", str4);
42: Relationlist.Add("SubPropertyName", str5);
43: }
44: }
45: return Relationlist;
46: }
47: /// <summary>
48: /// 获取数据表的主键
49: /// </summary>
50: /// <returns></returns>
51: public SortedList<string, string> GetTableKEY(HttpServerUtilityBase Server)
52: {
53: XmlDocument doc = new XmlDocument();
54: string strr = Server.MapPath("~\\Models\\TestModel.edmx");
55: doc.Load(strr);
56: XmlNodeList nodesAll = doc.GetElementsByTagName("EntityType");
57: SortedList<string, string> keylist = new SortedList<string, string>();
58: int count = nodesAll.Count;
59: foreach (XmlNode nodevalue in nodesAll)
60: {
61: count--;
62: if (count >= nodesAll.Count / 2)
63: {
64: keylist.Add(nodevalue.Attributes["Name"].Value, nodevalue.FirstChild.FirstChild.Attributes["Name"].Value);
65: }
66: }
67: return keylist;
68: }
69:
70:
71: /// <summary>
72: /// 通过表名返回与之相关的表及关系
73: /// </summary>
74: /// <param name="Server">服务器</param>
75: /// <param name="TableName">表名</param>
76: /// <param name="IsShowRelation">是否查询关系</param>
77: /// <returns>与主表相关所有表的关系</returns>
78: public static List<TableRelation> GetTable(HttpServerUtilityBase Server, string TableName, bool IsShowRelation)
79: {
80: string xmlpath = Server.MapPath("~\\Models\\TestModel.edmx");
81: XmlDocument xmlnoe = new XmlDocument();
82: xmlnoe.Load(xmlpath);
83: XmlNamespaceManager xmlname = new XmlNamespaceManager(xmlnoe.NameTable);
84: xmlname.AddNamespace("edmx", "http://schemas.microsoft.com/ado/2008/10/edmx");
85: xmlname.AddNamespace("annotation", "http://schemas.microsoft.com/ado/2009/02/edm/annotation");
86: xmlname.AddNamespace("public", "http://schemas.microsoft.com/ado/2008/09/edm");//添加Schema节点命名空间
87: XmlNodeList xmlNodesET = xmlnoe.SelectNodes("//edmx:ConceptualModels/public:Schema/public:EntityType", xmlname);
88: XmlNodeList xmlNodesAT = xmlnoe.SelectNodes("//edmx:ConceptualModels/public:Schema/public:Association", xmlname);
89:
90: SortedList<string, SortedList<string, string>> list1 = new SortedList<string, SortedList<string, string>>();
91:
92: if (IsShowRelation)
93: {
94: //list1.Add(TableName, new SortedList<string, string>());
95: foreach (XmlNode nodeAT in xmlNodesAT)
96: {
97: if (nodeAT.FirstChild.Attributes["Role"].Value.Equals(TableName))
98: {
99: SortedList<string, string> list = new SortedList<string, string>();
100: list.Add("Name", nodeAT.Attributes["Name"].Value);//外键关系名称
101: list.Add("MainRole", nodeAT.FirstChild.Attributes["Role"].Value);//主表
102: list.Add("MainMultiplicity", nodeAT.FirstChild.Attributes["Multiplicity"].Value);//映射关系 n..n
103: list.Add("MainKey", nodeAT.ChildNodes[2].FirstChild.FirstChild.Attributes["Name"].Value);//主键
104: list.Add("SubRole", nodeAT.FirstChild.NextSibling.Attributes["Role"].Value);//子表
105: list.Add("SubMultiplicity", nodeAT.FirstChild.NextSibling.Attributes["Multiplicity"].Value);//映射关系
106: list.Add("SubKey", nodeAT.ChildNodes[2].LastChild.FirstChild.Attributes["Name"].Value);//外键
107: list1.Add(nodeAT.FirstChild.NextSibling.Attributes["Role"].Value, list);
108: }
109: else if (nodeAT.FirstChild.NextSibling.Attributes["Role"].Value.Equals(TableName))
110: {
111: SortedList<string, string> list = new SortedList<string, string>();
112: list.Add("Name", nodeAT.Attributes["Name"].Value);//外键关系名称
113: list.Add("MainRole", nodeAT.FirstChild.Attributes["Role"].Value);//主表
114: list.Add("MainMultiplicity", nodeAT.FirstChild.Attributes["Multiplicity"].Value);//映射关系 n..n
115: list.Add("MainKey", nodeAT.ChildNodes[2].FirstChild.FirstChild.Attributes["Name"].Value);//主键
116: list.Add("SubRole", nodeAT.FirstChild.NextSibling.Attributes["Role"].Value);//子表
117: list.Add("SubMultiplicity", nodeAT.FirstChild.NextSibling.Attributes["Multiplicity"].Value);//映射关系
118: list.Add("SubKey", nodeAT.ChildNodes[2].LastChild.FirstChild.Attributes["Name"].Value);//外键
119: list1.Add(nodeAT.FirstChild.Attributes["Role"].Value, list);
120:
121: SortedList<string, string> listsub = new SortedList<string, string>();
122: listsub.Add("Name", nodeAT.Attributes["Name"].Value);//外键关系名称
123: listsub.Add("MainRole", nodeAT.FirstChild.Attributes["Role"].Value);//主表
124: listsub.Add("MainMultiplicity", nodeAT.FirstChild.Attributes["Multiplicity"].Value);//映射关系 n..n
125: listsub.Add("MainKey", nodeAT.ChildNodes[2].FirstChild.FirstChild.Attributes["Name"].Value);//主键
126: listsub.Add("SubRole", nodeAT.FirstChild.NextSibling.Attributes["Role"].Value);//子表
127: listsub.Add("SubMultiplicity", nodeAT.FirstChild.NextSibling.Attributes["Multiplicity"].Value);//映射关系
128: listsub.Add("SubKey", nodeAT.ChildNodes[2].LastChild.FirstChild.Attributes["Name"].Value);//外键
129: list1.Add(nodeAT.FirstChild.NextSibling.Attributes["Role"].Value, listsub);
130: }
131: }
132:
133: if (!list1.ContainsKey(TableName))
134: {
135: list1.Add(TableName, new SortedList<string, string>());
136: }
137: }
138: else
139: {
140: list1.Add(TableName, new SortedList<string, string>());
141: }
142: List<TableRelation> listTableRelation = new List<TableRelation>();
143:
144: foreach (var a in list1)//遍历所有该表的关系
145: {
146: foreach (XmlNode nodeET in xmlNodesET)//遍历所有EntityType节点的表
147: {
148: TableRelation tr = new TableRelation();
149: if (nodeET.Attributes["Name"].Value.Equals(a.Key))//EntityType节点名是否与关系结构中的主键名相同
150: {
151: XmlNode xmlNodesET2 = xmlnoe.SelectSingleNode("//edmx:ConceptualModels/public:Schema/public:EntityType[@Name='" + a.Key + "']/public:Documentation", xmlname);
152: XmlNodeList xmlNodesET3 = xmlnoe.SelectNodes("//edmx:ConceptualModels/public:Schema/public:EntityType[@Name='" + a.Key + "']/public:Property", xmlname);
153: List<Column> listColumn = new List<Column>();
154: foreach (XmlNode nodeET3 in xmlNodesET3)
155: {
156: Column column = new Column();
157: column.columnname = nodeET3.Attributes["Name"].Value;
158: column.type = nodeET3.Attributes["Type"].Value;
159: column.title = nodeET3.FirstChild != null ? nodeET3.FirstChild.FirstChild.InnerText : nodeET3.Attributes["Name"].Value;
160: column.nullable = nodeET3.Attributes["Nullable"] != null ? nodeET3.Attributes["Nullable"].Value : null;
161: column.maxlength = nodeET3.Attributes["MaxLength"] != null ? nodeET3.Attributes["MaxLength"].Value : null;
162: if (a.Value.Count > 0 && nodeET3.Attributes["Name"].Value.Equals(a.Value["SubKey"])
163: || a.Value.Count > 0 && nodeET3.Attributes["Name"].Value.Equals(a.Value["MainKey"]))
164: {
165: column.mainrole = a.Value["MainRole"];
166: column.mainkey = a.Value["MainKey"];
167: column.relationname = a.Value["Name"];
168: if (a.Value["MainMultiplicity"].Equals("*"))
169: {
170: column.mainmultiplicity = "ManyToOne";
171: }
172: else if (a.Value["MainMultiplicity"].Equals("0..1"))
173: {
174: column.mainmultiplicity = "OneToMany";
175: }
176:
177: column.subrole = a.Value["SubRole"];
178: column.subkey = a.Value["SubKey"];
179: if (a.Value["SubMultiplicity"].Equals("*"))
180: {
181: column.submultiplicity = "ManyToOne";
182: }
183: else if (a.Value["SubMultiplicity"].Equals("0..1"))
184: {
185: column.submultiplicity = "OneToMany";
186: }
187: }
188: listColumn.Add(column);
189: }
190: tr.tablename = a.Key;
191: tr.tabletitle = xmlNodesET2 != null ? xmlNodesET2.InnerText : a.Key;
192: tr.columns = listColumn;
193: listTableRelation.Add(tr);
194: }
195: }
196: }
197: return listTableRelation;
198: }
199:
200:
201: }
202: }
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jx 标签: Column
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1: using System;
2: using System.Collections.Generic;
3: using System.Linq;
4: using System.Text;
5: using Newtonsoft.Json;
6:
7: namespace EF_XML_TableRelation
8: {
9: /// <summary>
10: /// 数据表列信息
11: /// </summary>
12: public class Column
13: {
14: /// <summary>
15: /// 列名
16: /// </summary>
17: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
18: public string columnname { get; set; }
19: /// <summary>
20: /// 列备注
21: /// </summary>
22: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
23: public string title { get; set; }
24: /// <summary>
25: /// 列类型
26: /// </summary>
27: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
28: public string type { get; set; }
29: /// <summary>
30: /// 是否为空
31: /// </summary>
32: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
33: public string nullable { get; set; }
34: /// <summary>
35: /// 最大长度
36: /// </summary>
37: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
38: public string maxlength { get; set; }
39: /// <summary>
40: /// 主表名称
41: /// </summary>
42: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
43: public string mainrole { get; set; }
44: /// <summary>
45: /// 主表主键
46: /// </summary>
47: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
48: public string mainkey { get; set; }
49: /// <summary>
50: /// 关系名称
51: /// </summary>
52: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
53: public string relationname { get; set; }
54: /// <summary>
55: /// 主表关系
56: /// </summary>
57: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
58: public string mainmultiplicity { get; set; }
59: /// <summary>
60: /// 子表名称
61: /// </summary>
62: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
63: public string subrole { get; set; }
64: /// <summary>
65: /// 子表外键
66: /// </summary>
67: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
68: public string subkey { get; set; }
69: /// <summary>
70: /// 子表关系
71: /// </summary>
72: [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
73: public string submultiplicity { get; set; }
74: public Column()
75: {
76:
77: }
78:
79: public Column(string _name, string _title, string _type,
80: string _mainRole, string _mainKey, string _relationName,
81: string _mainMultiplicity, string _subRole, string _subKey,
82: string _subMultiplicity)
83: {
84: columnname = _name;
85: title = _title;
86: type = _type;
87: mainrole = _mainRole;
88: mainkey = _mainKey;
89: relationname = _relationName;
90: mainmultiplicity = _mainMultiplicity;
91: subrole = _subRole;
92: subkey = _subKey;
93: submultiplicity = _subMultiplicity;
94: }
95: }
96: }
jx 标签: TableRelation
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1: using System;
2: using System.Collections.Generic;
3: using System.Linq;
4: using System.Text;
5:
6: namespace EF_XML_TableRelation.XML
7: {
8: /// <summary>
9: /// 数据表关系
10: /// </summary>
11: public class TableRelation
12: {
13: public string tablename { get; set; }
14: public string tabletitle { get; set; }
15: public List<Column> columns { get; set; }
16: public TableRelation()
17: {
18:
19: }
20: public TableRelation(string _name, string _tabletitle, List<Column> _column)
21: {
22: tablename = _name;
23: tabletitle = _tabletitle;
24: columns = _column;
25: }
26: }
27: }
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