不知道什么原因，在Datalist下面的LinkButton控件到后台就不能识别了?

Question

<asp:DataList ID="dlFree" runat="server" RepeatColumns="1 " 
    onselectedindexchanged="dlFree_SelectedIndexChanged">
    <ItemTemplate>
        <table border="1px">
            <tr>
                <td>
                    <a href="javascript:window.location.href='showimage.aspx?id='+<%#DataBinder.Eval(Container.DataItem, "Mid ")%>">
                        <img style="border: 6px solid #ffffff; width: 200px; height: 200px;" alt="<%#DataBinder.Eval(Container.DataItem, "Title1 ")%>"
                            src='<%# DataBinder.Eval(Container.DataItem,"Photopath") %>' /></a>
                </td>
                <td>
                    <table style="width: 250px; font-size:12px;">
                       <tr>
                        <td>
                        <asp:LinkButton ID="LinkButton1" runat="server" >收录</asp:LinkButton>
                        </td>
                        </tr>
                    </table>
                </td>
            </tr>
        </table>
    </ItemTemplate>
</asp:DataList>不知道什么原因，在Datalist下面的LinkButton控件到后台就不能识别了.....
有解决方法吗?

Answer 1

因为你这个linkbutton控件是在datalist里面的，必须要通过datalist事件来获取
protected   void   DataList1_ItemDataBound(object   sender,   DataListItemEventArgs   e) 
        { 
                LinkButton   link   =   (LinkButton)e.Item.FindControl( "link1 "); 
                //这里就获取到了link
        } 

Answer 2

也可以这样protected   void   DataList1_ItemDataBound(object   sender,   DataListItemEventArgs   e) 
        { 
                LinkButton   link   =   e.Item.FindControl( "link1 ") as LinkButton; 
        } 

Answer 3

加个判断可能好点    protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
        {
            if(e.Item.ItemType==ListItemType.Item)
            {
                 LinkButton link = e.Item.FindControl( "link1 ") as LinkButton; 
            }
        }
   
  }  

Answer 4

<asp:LinkButton ID="LinkButton1" CommandName="sl" CommandArgument='传入阐述' runat="server" >收录</asp:LinkButton>protected void DataList1_RowCommand(object sender, GridViewCommandEventArgs e)
{
     if (e.CommandName == "sl")
     {
         //执行点击事件
         Response.Write(e.CommandArgument);//输出传入的参数
     }
}

Answer 5

那LinkButton1的onclick事件应该怎样写？？

Answer 6

 <asp:LinkButton ID="LinkButton1" runat="server" CommandArgument='<%#Eval("ID") %>' onclick="LinkButton1_Click">LinkButton</asp:LinkButton>
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        LinkButton lb = sender as LinkButton;
        Response.Write(lb.CommandArgument);
    }