Question

我想通过点击链接按钮来检索标签字段的值。它只能在onclick事件中被触发。我试过这个，但它给出了空值。

protected void verifycount_Click(object sender, EventArgs e)
{
      GridViewRow link = ((LinkButton)sender).NamingContainer as GridViewRow;                
      Label qrcode = (Label)link.FindControl("lblqrcode");       
      string result=qrcode.text;
}

请帮忙解决这个问题

Answer 1

protected void verifycount_Click(object sender, EventArgs e)
{
      LinkButton Lnk = (LinkButton)sender;    
      string result=Lnk.Text;
}

Answer 2

在网格视图列中的链接按钮中，作为命令参数，在该字段中发送标签值。您知道

<asp:BoundField DataField="FileName" HeaderText="Attached Files" />
 <asp:TemplateField>
        <ItemTemplate>
             <asp:LinkButton ID = "lnkDelete" Text = "Delete" CommandArgument = '<%# Eval("FileName") %>'
                                 runat = "server" OnClick = "DeleteHWAttachment" />
          </ItemTemplate>
  </asp:TemplateField>

然后你的代码就是这样，

protected void DeleteHWAttachment(object sender, EventArgs e)
{
        string filename = (sender as LinkButton).CommandArgument;
}

Answer 3

protected void verifycount_Click(object sender, EventArgs e)
    {
        GridViewRow grdrow = (GridViewRow)((LinkButton)sender).NamingContainer;
        string qrcode = grdrow.Cells[0].Text;
    }

确保所有字段都是除linkbutton

之外的绑定字段

点击linkbutton获取gridview标签字段

3 个答案: