C# 如何从code behinde访问按钮并在ListView ItemTemplate中单击时执行一些工作？

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正确的方法是将CommandName参数添加到按钮中，然后在EventHandler中捕获该参数。示例如下：

protected void ListViewUsers_ItemCommand(object sender, ListViewCommandEventArgs e)
{
      // How to access the button, and do some work when it is clicked.
}

参考MSDN文章

protected void ListViewUsers_ItemCommand(object sender, ListViewCommandEventArgs e)
{
      // How to access the button, and do some work when it is clicked.
}

<asp:Button ID="Btn_addFriend" runat="server"  Text="Add friend" CommandName="Add friend" />

protected void ListViewUsers_ItemCommand(object sender,ListViewCommandEventArgs e)
{
  if(String.Equals(e.CommandName, "Add friend"))
  {
    // ... DO SOME WORK HERE
  }
}