/// <summary>
/// 账面数据 Accounting
/// </summary>
/// <returns></returns>
DataTable setDataAccounting()
{
DataTable dt = new DataTable();
dt.Columns.Add("id", typeof(int));
dt.Columns.Add("empno", typeof(string));
dt.Columns.Add("empname", typeof(string));
dt.Columns.Add("sex", typeof(bool));
dt.Columns.Add("wage", typeof(decimal));
dt.Columns.Add("birthday", typeof(DateTime));
dt.Rows.Add(1, "L0001", "涂聚文",false,4500,"1970-03-04");
dt.Rows.Add(2, "L0002", "刘杰", false, 4300, "1972-04-04");
dt.Rows.Add(3, "L0003", "宋承宪", false, 4500, "1974-04-04");
dt.Rows.Add(4, "L0005", "宁夏", false, 4500, "1973-04-04");
dt.Rows.Add(6, "L0009", "江东", true, 5500, "1975-04-04");
dt.Rows.Add(6, "L0010", "李燕云", true, 9500, "1976-04-04");
dt.Rows.Add(7, "L0020", "赵雅芝", false, 14500, "1977-04-04"); return dt;
}
/// <summary>
/// 盘点数据 Inventory
/// </summary>
/// <returns></returns>
DataTable setDataInventory()
{
DataTable dt = new DataTable();
dt.Columns.Add("id", typeof(int));
dt.Columns.Add("empno", typeof(string));
dt.Columns.Add("empname", typeof(string));
dt.Columns.Add("sex", typeof(bool));
dt.Columns.Add("wage", typeof(decimal));
dt.Columns.Add("birthday", typeof(DateTime));
dt.Rows.Add(10, "L0001", "涂聚文", false, 4500, "1970-03-04");
dt.Rows.Add(11, "L0002", "刘杰", false, 4300, "1972-04-04");
dt.Rows.Add(12, "L0009", "江东", true, 5500, "1973-04-04");
dt.Rows.Add(13, "L0010", "李燕云", true, 9500, "1974-04-04");
dt.Rows.Add(14, "L0020", "赵雅芝", false, 14500, "1975-04-04");
dt.Rows.Add(15, "L0032", "徐若萱", false, 4300, "1976-04-04");
dt.Rows.Add(16, "L0056", "保芝林", true, 4200, "1977-04-04");
dt.Rows.Add(17, "L0042", "何燕华", false, 4100, "1978-04-04");
dt.Rows.Add(18, "L0052", "黄花菜", false, 4400, "1979-04-04");
dt.Rows.Add(19, "L0012", "艾薇儿", true, 5500, "1982-04-04");
dt.Rows.Add(20, "L0018", "傅艺伟", false, 6500, "1932-04-04");
dt.Rows.Add(21, "L0028", "李世民", false, 9500, "1992-04-04");
return dt;
} /// <summary>
///
/// </summary>
public Form1()
{
InitializeComponent();
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Form1_Load(object sender, EventArgs e)
{
this.dataGridViewAccounting.DataSource = setDataAccounting(); this.dataGridViewInventory.DataSource = setDataInventory(); }
/// <summary>
/// 比结果
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{ try
{
DataTable datadiff1 = new DataTable();
DataTable datadiff2 = new DataTable();
DataTable dataOverage = new DataTable();//盘盈
DataTable dataInventoryLoss = new DataTable();//盘亏 DataTable datatable1 = setDataAccounting();
DataTable datatable2 = setDataInventory(); #region
//var qry1 = datatable1.AsEnumerable().Select(a => new { MobileNo = a["empno"].ToString() });
//var qry2 = datatable2.AsEnumerable().Select(b => new { MobileNo = b["empno"].ToString() });
//var exceptAB = qry1.Except(qry2);
////
//DataTable dtMisMatch = (from a in datatable1.AsEnumerable()
// join ab in exceptAB on a["empno"].ToString() equals ab.MobileNo
// select a).CopyToDataTable(); ////detect row deletes - a row is in datatable1 except missing from datatable2
//var exceptAB1 = qry1.Except(qry2);
// dataInventoryLoss= (from a in datatable1.AsEnumerable()
// join ab in exceptAB1 on a["empno"].ToString() equals ab.MobileNo
// select a).CopyToDataTable();
////detect row inserts - a row is in datatable2 except missing from datatable1
//var exceptAB2 = qry2.Except(qry1);
// dataOverage = (from a in datatable2.AsEnumerable()
// join ab in exceptAB2 on a["empno"].ToString() equals ab.MobileNo
// select a).CopyToDataTable(); #endregion
//CompareDataTable(setDataAccounting(), setDataInventory(), "empno","id", out dataOverage, out datadiff1, out datadiff2, out dataInventoryLoss);
CompareLinQDataTable(setDataAccounting(), setDataInventory(), "empno", out dataOverage, out dataInventoryLoss); this.dataGridViewOverage.DataSource =dataOverage;
this.dataGridViewInventoryLoss.DataSource = dataInventoryLoss;
this.dataGridViewAdd.DataSource =datadiff1 ;
this.dataGridViewDel.DataSource = datadiff2;
}
catch (Exception ex)
{
ex.Message.ToString();
} } /// <summary>
/// 比较两个DataTableCompare数据（结构相同）
/// 涂聚文
/// http://www.codeproject.com/Tips/344792/Compare-two-datatable-using-LINQ-Query
/// </summary>
/// <param name="datatable1"></param>
/// <param name="datatable2"></param>
/// <param name="keyField"></param>
/// <param name="dataOverage"></param>
/// <param name="dataInventoryLoss"></param>
public static void CompareLinQDataTable(DataTable datatable1, DataTable datatable2, string keyField,out DataTable dataOverage,out DataTable dataInventoryLoss)
{
var qry1 = datatable1.AsEnumerable().Select(a => new { IdNo = a[keyField].ToString() });
var qry2 = datatable2.AsEnumerable().Select(b => new { IdNo = b[keyField].ToString() });
//detect row deletes - a row is in datatable1 except missing from datatable2
var exceptAB1 = qry1.Except(qry2);
dataInventoryLoss = (from a in datatable1.AsEnumerable()
join ab in exceptAB1 on a[keyField].ToString() equals ab.IdNo
select a).CopyToDataTable();
//detect row inserts - a row is in datatable2 except missing from datatable1
var exceptAB2 = qry2.Except(qry1);
dataOverage = (from a in datatable2.AsEnumerable()
join ab in exceptAB2 on a[keyField].ToString() equals ab.IdNo
select a).CopyToDataTable(); } /// <summary>
/// 比较两个DataTableCompare数据（结构相同）
/// 来源于:http://www.cnblogs.com/houlinbo/archive/2010/02/10/1667189.html
/// </summary>
/// <param name="dt1">来自数据库的DataTable</param>
/// <param name="dt2">来自文件的DataTable</param>
/// <param name="keyField">要比较的关键字段名</param>
/// <param name="keyid">不需要比较的字段名id</param>
/// <param name="dtRetAdd">新增数据（dt2中的数据）</param>
/// <param name="dtRetDif1">不同的数据（数据库中的数据）</param>
/// <param name="dtRetDif2">不同的数据（dt2中的数据,修改过的）</param>
/// <param name="dtRetDel">删除的数据（dt2中的数据）</param>
public static void CompareDataTable(DataTable dt1, DataTable dt2, string keyField,string keyid, out DataTable dtRetAdd, out DataTable dtRetDif1, out DataTable dtRetDif2,out DataTable dtRetDel)
{
//为三个表拷贝表结构
dtRetDel = dt1.Clone();
dtRetAdd = dtRetDel.Clone();
dtRetDif1 = dtRetDel.Clone();
dtRetDif2 = dtRetDel.Clone(); int colCount = dt1.Columns.Count; DataView dv1 = dt1.DefaultView;
DataView dv2 = dt2.DefaultView; //先以第一个表为参照，看第二个表是修改了还是删除了
foreach (DataRowView dr1 in dv1)
{
dv2.RowFilter = keyField + " = '" + dr1[keyField].ToString() + "'";
if (dv2.Count > 0)
{
if (!CompareUpdate(dr1, dv2[0]))//比较是否有不同的
{
dtRetDif1.Rows.Add(dr1.Row.ItemArray);//修改前
dtRetDif2.Rows.Add(dv2[0].Row.ItemArray);//修改后
dtRetDif2.Rows[dtRetDif2.Rows.Count - 1][keyid] = dr1.Row[keyid];//将ID赋给来自文件的表，因为它的ID全部==0
continue;
}
}
else
{
//已经被删除的
dtRetDel.Rows.Add(dr1.Row.ItemArray);
}
} //以第一个表为参照，看记录是否是新增的
dv2.RowFilter = "";//清空条件
foreach (DataRowView dr2 in dv2)
{
dv1.RowFilter = keyField + " = '" + dr2[keyField].ToString() + "'";
if (dv1.Count == 0)
{
//新增的
dtRetAdd.Rows.Add(dr2.Row.ItemArray);
}
}
} /// <summary>
///
/// </summary>
/// <param name="dr1"></param>
/// <param name="dr2"></param>
/// <returns></returns>
private static bool CompareUpdate(DataRowView dr1, DataRowView dr2)
{
//行里只要有一项不一样，整个行就不一样,无需比较其它
object val1;
object val2;
for (int i = 1; i < dr1.Row.ItemArray.Length; i++)
{
val1 = dr1[i];
val2 = dr2[i];
if (!val1.Equals(val2))
{
return false;
}
}
return true;
}
/// <summary>
///datatable relational operators
///20150825
///Geovin Du
///http://weblogs.sqlteam.com/davidm/archive/2004/01/21/753.aspx
/// </summary>
public class SQLOps
{
/// <summary>
///
/// </summary>
public SQLOps()
{ // // TODO: Add constructor logic here // }
/// <summary>
///
/// </summary>
/// <param name="First"></param>
/// <param name="Second"></param>
/// <param name="FJC"></param>
/// <param name="SJC"></param>
/// <returns></returns>
public static DataTable Join(DataTable First, DataTable Second, DataColumn[] FJC, DataColumn[] SJC)
{ //Create Empty Table DataTable table = new DataTable("Join"); // Use a DataSet to leverage DataRelation using (DataSet ds = new DataSet())
{ //Add Copy of Tables ds.Tables.AddRange(new DataTable[] { First.Copy(), Second.Copy() });
//Identify Joining Columns from First DataColumn[] parentcolumns = new DataColumn[FJC.Length]; for (int intLoop = 0; intLoop < parentcolumns.Length; intLoop++)
{ parentcolumns[intLoop] = ds.Tables[0].Columns[FJC[intLoop].ColumnName]; } //Identify Joining Columns from Second DataColumn[] childcolumns = new DataColumn[SJC.Length]; for (int intLoop = 0; intLoop < childcolumns.Length; intLoop++)
{ childcolumns[intLoop] = ds.Tables[1].Columns[SJC[intLoop].ColumnName]; }
//Create DataRelation DataRelation r = new DataRelation(string.Empty, parentcolumns, childcolumns, false); ds.Relations.Add(r);
//Create Columns for JOIN table for (int intLoop = 0; intLoop < First.Columns.Count; intLoop++)
{ table.Columns.Add(First.Columns[intLoop].ColumnName, First.Columns[intLoop].DataType); }
for (int intLoop = 0; intLoop < Second.Columns.Count; intLoop++)
{ //Beware Duplicates if (!table.Columns.Contains(Second.Columns[intLoop].ColumnName)) table.Columns.Add(Second.Columns[intLoop].ColumnName, Second.Columns[intLoop].DataType); else table.Columns.Add(Second.Columns[intLoop].ColumnName + "_Second", Second.Columns[intLoop].DataType); }
//Loop through First table table.BeginLoadData(); foreach (DataRow firstrow in ds.Tables[0].Rows)
{ //Get "joined" rows DataRow[] childrows = firstrow.GetChildRows(r); if (childrows != null && childrows.Length > 0)
{ object[] parentarray = firstrow.ItemArray; foreach (DataRow secondrow in childrows)
{ object[] secondarray = secondrow.ItemArray; object[] joinarray = new object[parentarray.Length + secondarray.Length]; Array.Copy(parentarray, 0, joinarray, 0, parentarray.Length); Array.Copy(secondarray, 0, joinarray, parentarray.Length, secondarray.Length); table.LoadDataRow(joinarray, true);
} } }
table.EndLoadData(); }
return table; }
/// <summary>
///
/// </summary>
/// <param name="First"></param>
/// <param name="Second"></param>
/// <param name="FJC"></param>
/// <param name="SJC"></param>
/// <returns></returns>
public static DataTable Join(DataTable First, DataTable Second, DataColumn FJC, DataColumn SJC)
{ return Join(First, Second, new DataColumn[] { FJC }, new DataColumn[] { SJC }); }
/// <summary>
///
/// </summary>
/// <param name="First"></param>
/// <param name="Second"></param>
/// <param name="FJC"></param>
/// <param name="SJC"></param>
/// <returns></returns>
public static DataTable Join(DataTable First, DataTable Second, string FJC, string SJC)
{ return Join(First, Second, new DataColumn[] { First.Columns[FJC] }, new DataColumn[] { First.Columns[SJC] }); }
/// <summary>
///
/// </summary>
/// <param name="First"></param>
/// <param name="Second"></param>
/// <returns></returns>
public static DataTable Intersect(DataTable First, DataTable Second)
{ //Get reference to Columns in First DataColumn[] firstcolumns = new DataColumn[First.Columns.Count]; for (int i = 0; i < firstcolumns.Length; i++)
{ firstcolumns[i] = First.Columns[i]; } //Get reference to Columns in Second DataColumn[] secondcolumns = new DataColumn[Second.Columns.Count]; for (int i = 0; i < secondcolumns.Length; i++)
{ secondcolumns[i] = Second.Columns[i]; } //JOIN ON all columns DataTable table = SQLOps.Join(First, Second, firstcolumns, secondcolumns); table.TableName = "Intersect"; return table; } /// <summary>
///
/// </summary>
/// <param name="Values"></param>
/// <param name="OtherValues"></param>
/// <returns></returns>
public static bool RowEqual(object[] Values, object[] OtherValues)
{ if (Values == null) return false; for (int i = 0; i < Values.Length; i++)
{ if (!Values[i].Equals(OtherValues[i])) return false; } return true; } /// <summary>
///
/// </summary>
/// <param name="Table"></param>
/// <param name="Columns"></param>
/// <returns></returns>
public static DataTable Distinct(DataTable Table, DataColumn[] Columns)
{ //Empty table DataTable table = new DataTable("Distinct"); //Sort variable string sort = string.Empty; //Add Columns & Build Sort expression for (int i = 0; i < Columns.Length; i++)
{ table.Columns.Add(Columns[i].ColumnName, Columns[i].DataType); sort += Columns[i].ColumnName + ","; } //Select all rows and sort DataRow[] sortedrows = Table.Select(string.Empty, sort.Substring(0, sort.Length - 1)); object[] currentrow = null; object[] previousrow = null; table.BeginLoadData(); foreach (DataRow row in sortedrows)
{ //Current row currentrow = new object[Columns.Length]; for (int i = 0; i < Columns.Length; i++)
{ currentrow[i] = row[Columns[i].ColumnName]; } //Match Current row to previous row if (!SQLOps.RowEqual(previousrow, currentrow)) table.LoadDataRow(currentrow, true); //Previous row previousrow = new object[Columns.Length]; for (int i = 0; i < Columns.Length; i++)
{ previousrow[i] = row[Columns[i].ColumnName]; } } table.EndLoadData(); return table; } /// <summary>
///
/// </summary>
/// <param name="Table"></param>
/// <param name="Column"></param>
/// <returns></returns>
public static DataTable Distinct(DataTable Table, DataColumn Column)
{ return Distinct(Table, new DataColumn[] { Column }); }
/// <summary>
///
/// </summary>
/// <param name="Table"></param>
/// <param name="Column"></param>
/// <returns></returns>
public static DataTable Distinct(DataTable Table, string Column)
{ return Distinct(Table, Table.Columns[Column]); }
/// <summary>
///
/// </summary>
/// <param name="Table"></param>
/// <param name="Columns"></param>
/// <returns></returns>
public static DataTable Distinct(DataTable Table, params string[] Columns)
{ DataColumn[] columns = new DataColumn[Columns.Length]; for (int i = 0; i < Columns.Length; i++)
{ columns[i] = Table.Columns[Columns[i]]; } return Distinct(Table, columns); }
/// <summary>
///
/// </summary>
/// <param name="Table"></param>
/// <returns></returns>
public static DataTable Distinct(DataTable Table)
{ DataColumn[] columns = new DataColumn[Table.Columns.Count]; for (int i = 0; i < Table.Columns.Count; i++)
{ columns[i] = Table.Columns[i]; } return Distinct(Table, columns); } /// <summary>
///
/// </summary>
/// <param name="First"></param>
/// <param name="Second"></param>
/// <returns></returns>
public static DataTable Union(DataTable First, DataTable Second)
{
//Result table
DataTable table = new DataTable("Union");
//Build new columns
DataColumn[] newcolumns = new DataColumn[First.Columns.Count];
for (int i = 0; i < First.Columns.Count; i++)
{
newcolumns[i] = new DataColumn(First.Columns[i].ColumnName, First.Columns[i].DataType);
}
//add new columns to result table
table.Columns.AddRange(newcolumns);
table.BeginLoadData();
//Load data from first table
foreach (DataRow row in First.Rows)
{
table.LoadDataRow(row.ItemArray, true);
}
//Load data from second table
foreach (DataRow row in Second.Rows)
{
table.LoadDataRow(row.ItemArray, true);
}
table.EndLoadData();
return table;
} /// <summary>
/// 多个 结构相同的DataTable合并
/// </summary>
/// <returns></returns>
public static DataTable GetAllEntrysDataTable(List<DataTable> GetEntrysDataTable)
{
DataTable newDataTable = GetEntrysDataTable[0].Clone();
object[] obj = new object[newDataTable.Columns.Count];
for (int i = 0; i < GetEntrysDataTable.Count; i++)//entryGroups.GetEntryGroupCount()
{
for (int j = 0; j < GetEntrysDataTable[i].Rows.Count; j++)
{
GetEntrysDataTable[i].Rows[j].ItemArray.CopyTo(obj, 0);
newDataTable.Rows.Add(obj);
}
}
return newDataTable;
}
/// <summary>
/// 结构不同
/// </summary>
/// <param name="dt1"></param>
/// <param name="dt2"></param>
/// <param name="DTName"></param>
/// <returns></returns>
public static DataTable UnitesDataTable(DataTable dt1, DataTable dt2, string DTName)
{
DataTable dt3 = dt1.Clone();
for (int i = 0; i < dt2.Columns.Count; i++)
{
dt3.Columns.Add(dt2.Columns[i].ColumnName);
}
object[] obj = new object[dt3.Columns.Count]; for (int i = 0; i < dt1.Rows.Count; i++)
{
dt1.Rows[i].ItemArray.CopyTo(obj, 0);
dt3.Rows.Add(obj);
} if (dt1.Rows.Count >= dt2.Rows.Count)
{
for (int i = 0; i < dt2.Rows.Count; i++)
{
for (int j = 0; j < dt2.Columns.Count; j++)
{
dt3.Rows[i][j + dt1.Columns.Count] = dt2.Rows[i][j].ToString();
}
}
}
else
{
DataRow dr3;
for (int i = 0; i < dt2.Rows.Count - dt1.Rows.Count; i++)
{
dr3 = dt3.NewRow();
dt3.Rows.Add(dr3);
}
for (int i = 0; i < dt2.Rows.Count; i++)
{
for (int j = 0; j < dt2.Columns.Count; j++)
{
dt3.Rows[i][j + dt1.Columns.Count] = dt2.Rows[i][j].ToString();
}
}
}
dt3.TableName = DTName; //设置DT的名字
return dt3;
}
/// <summary>
/// 结构不同
/// </summary>
/// <param name="dt1"></param>
/// <param name="dt2"></param>
/// <returns></returns>
public static DataTable UnitesDataTable(DataTable dt1, DataTable dt2)
{
DataTable dt3 = dt1.Clone();
for (int i = 0; i < dt2.Columns.Count; i++)
{
dt3.Columns.Add(dt2.Columns[i].ColumnName);
}
object[] obj = new object[dt3.Columns.Count]; for (int i = 0; i < dt1.Rows.Count; i++)
{
dt1.Rows[i].ItemArray.CopyTo(obj, 0);
dt3.Rows.Add(obj);
} if (dt1.Rows.Count >= dt2.Rows.Count)
{
for (int i = 0; i < dt2.Rows.Count; i++)
{
for (int j = 0; j < dt2.Columns.Count; j++)
{
dt3.Rows[i][j + dt1.Columns.Count] = dt2.Rows[i][j].ToString();
}
}
}
else
{
DataRow dr3;
for (int i = 0; i < dt2.Rows.Count - dt1.Rows.Count; i++)
{
dr3 = dt3.NewRow();
dt3.Rows.Add(dr3);
}
for (int i = 0; i < dt2.Rows.Count; i++)
{
for (int j = 0; j < dt2.Columns.Count; j++)
{
dt3.Rows[i][j + dt1.Columns.Count] = dt2.Rows[i][j].ToString();
}
}
}
//dt3.TableName = DTName; //设置DT的名字
return dt3;
}
}