面板DefaultButton doe不起作用 [英] Panel DefaultButton doe not work

问题描述

我在我的应用程序中嵌套了datalist





我在第二个数据列表中放入此代码

i have nested datalist in my application


the inside the second datalist i put this code

<td>
  <asp:Panel ID="Panel1"
             runat="server"
             DefaultButton="LinkButton2">
    <asp:Button ID="comment_btn"
                runat="server"
                Text="add"
                CommandName="btn_comment_add"
                CommandArgument='<%#Eval("id") %>'
                Style="display: none" />
    <asp:LinkButton ID="LinkButton2"
                    CommandName="LinkButton_2"
                    CommandArgument='<%#Eval("id") %>'
                    runat="server"
                    Style="display: none" >
      LinkButton
    </asp:LinkButton>
    <asp:TextBox ID="txtComment"
                 runat="server"
                 Width="400px"
                 Height="20px"
                 Visible="false">
    </asp:TextBox>
  </asp:Panel>
  <asp:LinkButton ID="comment_link"
                  ForeColor="Maroon"
                  Font-Size="X-Small"
                  Font-Bold="true"
                  runat="server"
                  CommandName="comment_link"
                  CommandArgument='<%#Eval("id") %>'>
    Comment
  </asp:LinkButton>
</td>

并使用nokta_datalist_ItemCommand父级datalist访问defualt按钮的事件

and used nokta_datalist_ItemCommand to the parent datalist to access the event of the defualt button

protected void nokta_datalist_ItemCommand(object source, DataListCommandEventArgs e)
       {
           if (e.CommandName == "comment_link")
           {

               e.Item.FindControl("txtComment").Visible = true;
               e.Item.FindControl("comment_btn").Visible = true;
           }

           if (e.CommandName == "LinkButton_2")
           {
               //---------- add the user comment to the data base--------------//
               Label3.Text = "goooood";

               //comment_obj.add_comment("helooooo", Convert.ToInt16(Session["user_id"].ToString()),Convert.ToInt16(e.CommandArgument));





           }




       }

当我使用调试时

when i use debug


the

if (e.CommandName == "LinkButton_2")
           {

}

里面的代码没有执行且没有错误

}
the code inside it does not execute and there is no error

推荐答案

来自 Panel.DefaultButton属性 [ ^ ]：



以下情况不支持设置DefaultButton属性：



•引用作为LinkBut​​ton控件的默认按钮。仅支持Button和ImageButton控件。

From the Panel.DefaultButton Property [^]:

Setting the DefaultButton property is not supported for the following scenarios:

• Referencing a default button that is a LinkButton control. Only Button and ImageButton controls are supported.

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