获取模版列中按钮事件所在行的关键字

获取模版列中按钮事件所在行的关键字

被常常问到的一个经典问题了，答案放到网上来。

步骤
1 ASP.NET的这个地方这样设置。GridView加入 OnRowCommand 事件，模版列的按钮设置CommandArgument、CommandName

 

 1<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowDataBound ="dgItemDataBound"
 2                                                                                      PageSize="15" Width="100%" AllowPaging="True" BorderWidth="0px" CellPadding="2" CellSpacing="1" OnRowCommand="GridView1_RowCommand" OnRowEditing="GridView1_RowEditing" OnRowCreated="GridView1_RowCreated" OnRowDeleting="GridView1_RowDeleting"  >
 3                                                                                      <Columns>
 4                                                                                          <asp:BoundField DataField="TableField_ID" HeaderText="编号" Visible=False />   
 5                                                                                          <asp:BoundField DataField="TbName" HeaderText="表名称"  />
 6                                                                                          <asp:HyperLinkField  DataTextField="FdName" SortExpression="FdName" HeaderText="字段名称" DataNavigateUrlFields="FdName" DataNavigateUrlFormatString="DdCreateField.aspx?FdName={0}"></asp:HyperLinkField>
 7                                                                                          <asp:HyperLinkField  DataTextField="Descr" SortExpression="Descr" HeaderText="字段描述" DataNavigateUrlFields="FdName" DataNavigateUrlFormatString="DdCreateField.aspx?FdName={0}"></asp:HyperLinkField>
 8                                                                                          <asp:BoundField DataField="SequenceNo" HeaderText="顺序" />                                                                                          
 9                                                                                          <asp:BoundField DataField="KeyField" HeaderText="主键" />
10                                                                                          <asp:TemplateField HeaderText="增加">
11                                                                                          <ItemTemplate>                                                                                                
12                                                                                                <asp:ImageButton CommandArgument='<%#  DataBinder.Eval(Container.DataItem,"TbName") %>'  id=ImageButton1 runat="server" ImageUrl='../images/icon_add.gif' CommandName="Add" ImageAlign="AbsMiddle">
13                                                                                                </asp:ImageButton>
14                                                                                          </ItemTemplate>
15                                                                                              <ItemStyle HorizontalAlign="Center" Width="30px" />
16                                                                                          </asp:TemplateField>
17                                                                                          <asp:TemplateField HeaderText="修改">
18                                                                                           <ItemTemplate>                                                                                                
19                                                                                                <asp:ImageButton  id=ImageButton2 runat="server" ImageUrl='../images/icon_edit.gif' CommandName="Edit"   ImageAlign="AbsMiddle">
20                                                                                                </asp:ImageButton>
21                                                                                          </ItemTemplate>
22                                                                                              <ItemStyle HorizontalAlign="Center" Width="30px" />
23                                                                                          </asp:TemplateField>
24                                                                                          <asp:TemplateField HeaderText="删除">
25                                                                                           <ItemTemplate>                                                                                                
26                                                                                                <asp:ImageButton id=ImageButton3 runat="server" ImageUrl='../images/icon_delete.gif' CommandName="Delete" ImageAlign="AbsMiddle">
27                                                                                                </asp:ImageButton>
28                                                                                          </ItemTemplate>
29                                                                                              <ItemStyle HorizontalAlign="Center" Width="30px" />
30                                                                                          </asp:TemplateField>
31                                                                                          
32                                                                                      </Columns>
33                                                                                      <RowStyle BackColor="White" HorizontalAlign="Left" />
34                                                                                      <HeaderStyle CssClass="B6BBDA" HorizontalAlign="Center" />
35                                                                                      <PagerTemplate>
36                                                                                          第 [
37                                                                                          <asp:Label ID="Label1" runat="server" Text="<%# GridView1.PageIndex+1 %>"></asp:Label>
38                                                                                          ] 页&nbsp;
39                                                                                      </PagerTemplate>
40                                                                                  </asp:GridView>

 还可以使用CommandArgument='<%#  Bind("TbName") %>'

2 后台cs的GridView1_RowCommand方法

 1 protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
 2    {
 3        if (e.CommandName == "Add")
 4        {
 5            string index = Convert.ToString(e.CommandArgument);         
 6        }
 7        else if (e.CommandName == "Edit")
 8        {
 9        }
10        else if (e.CommandName == "Delete")
11        {
12        }
13    }