虽然标题是原创，但是其实主要的思想呢还是接见了晓风残月的思路，今天在晓风残月的博客上看到了如何利用GridView来实现双击进行编辑。我决定动手实现一下，由于还没有实现双击进行更改操作，所以顺便就把这个功能加了上去，希望对大家能有帮助，同时也谢谢晓风残月。
效果图如下：
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" OnRowEditing="GridView1_RowEditing" OnRowDataBound="GridView1_RowDataBound" OnRowUpdating="GridView1_RowUpdating" OnRowCommand="GridView1_RowCommand">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:ButtonField Text="SingleClick" CommandName="SingleClick" Visible="false" ButtonType="Link"/>
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<%...# Eval("customerid")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="ID" runat ="server" Text='<%# Bind("customerid")%>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="CompanyName">
<ItemTemplate>
<%...# Eval("CompanyName")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="CName" runat ="server" Text='<%# Bind("CompanyName")%>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ContactName">
<ItemTemplate>
<%...# Eval("ContactName")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="Name" runat ="server" Text='<%# Bind("ContactName")%>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Address">
<ItemTemplate>
<%...# Eval("Address")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="Address" runat ="server" Text='<%# Bind("Address")%>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView> </div>
</form>
string ConStr = ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
...{
if (!IsPostBack)
...{
BindData();
}
} private void BindData()
...{
SqlConnection MyCon = new SqlConnection(ConStr);
string QueryStr = "SELECT customerid,CompanyName,ContactName,Address FROM customers";
SqlDataAdapter Da = new SqlDataAdapter(QueryStr, MyCon);
DataSet Ds = new DataSet();
Da.Fill(Ds, "Customers");
GridView1.DataSource = Ds.Tables[0];
GridView1.DataKeyNames = new string[] ...{ "customerid" };
GridView1.DataBind();
}
protected override void Render(HtmlTextWriter writer)
...{
foreach (GridViewRow Row in GridView1.Rows)
...{
if (Row.RowType == DataControlRowType.DataRow)
...{
//双击进入编辑模式
Row.Attributes["ondblclick"] = ClientScript.GetPostBackEventReference(GridView1, "Edit$" + Row.RowIndex.ToString(), true);
Row.Attributes["style"] = "cursor:pointer";
Row.Attributes["title"] = "双击进入编辑";
if (Row.RowState == DataControlRowState.Edit)
...{
Row.Attributes.Remove("ondblclick");
Row.Attributes.Remove("style");
Row.Attributes["title"] = "编辑行";
for (Int32 i = 1; i < GridView1.Columns.Count; i++)
...{
((TextBox)Row.Cells[i].Controls[1]).Attributes.Add("onmouseover", "this.select()");
}
//双击更新
Row.Attributes["ondblclick"] = ClientScript.GetPostBackEventReference(GridView1, "Update$" + Row.RowIndex.ToString(), true);
}
//
for (int i = 1; i < Row.Cells.Count; i++)
...{
Page.ClientScript.RegisterForEventValidation(Row.UniqueID + "$ctl00", i.ToString());
}
}
}
base.Render(writer);
} protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
...{
GridView1.EditIndex = e.NewEditIndex;
BindData();
} protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
...{
string ID = GridView1.DataKeys[e.RowIndex].Value.ToString();
//防止非法的输入，预防脚本攻击
string CustomerId = Server.HtmlDecode(((TextBox)GridView1.Rows[e.RowIndex].Cells[1].Controls[1]).Text.ToString());
string CompanyName = Server.HtmlDecode(((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[1]).Text.ToString());
string ContactName = Server.HtmlDecode(((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[1]).Text.ToString());
string Address = Server.HtmlDecode(((TextBox)GridView1.Rows[e.RowIndex].Cells[4].Controls[1]).Text.ToString());
SqlConnection Con = new SqlConnection(ConStr);
string UpdateStr = "UPDATE customers SET companyname=@CompanyName,contactname=@ContactName,address=@Address WHERE customerid=@ID";
//插入数据的时候用参数来可以预防SQL注入攻击，提高系统的安全性
SqlCommand UpdateCmd = new SqlCommand(UpdateStr,Con);
SqlParameter ParmID = new SqlParameter("@ID", SqlDbType.NVarChar,20);
ParmID.Value = ID;
SqlParameter ParmCName = new SqlParameter("@CompanyName", SqlDbType.NVarChar, 20);
ParmCName.Value = CompanyName;
SqlParameter ParmName = new SqlParameter("@ContactName",SqlDbType.NVarChar,20);
ParmName.Value = ContactName;
SqlParameter ParmAddr = new SqlParameter("@Address",SqlDbType.NVarChar,20);
ParmAddr.Value = Address;
try
...{
UpdateCmd.Parameters.Add(ParmCName);
UpdateCmd.Parameters.Add(ParmName);
UpdateCmd.Parameters.Add(ParmAddr);
UpdateCmd.Parameters.Add(ParmID);
Con.Open();
UpdateCmd.ExecuteNonQuery();
Con.Close();
}
catch
...{
ShowMessage("输入格式不正确，请检查");
}
finally
...{
Con.Close();
GridView1.EditIndex = -1;
BindData();
}
}
private void ShowMessage(string Message)
...{
Literal TxtMsg = new Literal();
TxtMsg.Text = "<script>alert('" + Message + "')</script>";
Page.Controls.Add(TxtMsg);
} protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
...{
}
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
...{
GridView ControlGridView = (GridView)sender;
if (e.CommandName == "SingleClick")
...{
int RowIndex = int.Parse(e.CommandArgument.ToString());
int ColIndex = int.Parse(Request.Form["__EVENTARGUMENT"]);
Response.Write("<script>alert('你点击了第"+(RowIndex+1)+"行的第"+(ColIndex)+"列');</script>");
}
}
}
http://www.hello-code.com/blog/asp.net/201311/2223.html