Question

我想在按钮点击时获取GridView所选行的DataKey。

Answer 1

我个人会在模板字段中这样做：

    <asp:TemplateField>
     <ItemTemplate>
       //EDIT: after a comment it is suggested that you pass the RowIndex as the command argument which would provide access to the entire row
       <asp:LinkButton ID="btnCopy" runat="server"CausesValidation="False"CommandName="MyCommandButton"CommandArgument='<%# Eval("MyDataKeyOrWhateverIWanteverIWantFromTheBindingSource")%>'>
     </ItemTemplate>
    </asp:TemplateField>

<强>代码隐藏

protect void MyCommandButton(Object sender,CommandArgument e)

{
    int DataKeyOrPK=int32.Parse(e.CommandArgument.ToString());
}

你的其他选择是：

<asp:gridview id="myGrid" runat="server"
      width=100% datakeynames="Myid"
      autogeneratecolumns=false
      onSelectedIndexChanged="MyEvent">


<asp:templatefield headertext="Choose your dream home">
 <itemtemplate>
  <asp:linkbutton runat="server" commandname="select" text='<%# Eval ( "Whatever" ) %>' />
 </itemtemplate>
</asp:templatefield>

注意上面的commandname =“select”。

数据绑定控件识别某些命令名称并自动引发和处理控件的相应事件。识别以下命令名称： 取消，删除，编辑，插入，新建，翻页，选择，排序和更新。 Reference

<强>代码隐藏

private void MyEvent(Object sender, EventArgs e) 
{
   string id = myGrid.SelectedDataKey.Value.ToString();
}

Answer 2

使用GridView的SelectedDataKey属性：

DataKey currentKey = myGridView.SelectedDataKey;

在按钮上获取当前选定的GridView行。单击

2 个答案: