GridView ButtonField后面的命令

Question

我对GridView中ButtonField(图像类型)背后的命令有疑问.

得到了一个名为gvIngevuld的GridView,它显示了数据行和1个ButtonField行.现在我必须将代码放在这些按钮后面(每个按钮都相同)以放置一些PDF格式的东西.问题是我不知道如何将代码放在这些按钮后面？我的代码:

<asp:ButtonField ButtonType="Image" ImageUrl="~/Images/pdf.png"  CommandName="pdf_click" />

正如您所看到的,我使用了CommandName ="pdf_click"属性,但是当我单击其中一个按钮时,只有一个回发但没有任何反应.谁可以帮助我在这里？

如果需要,代码背后:

protected void pdf_click(object sender, EventArgs e)
{
    lblWelkom.Text = "Succes!";
}

谢谢.

Answer 1

你应该使用RowCommandgridview事件.将commandArgument设置为项目的唯一键.(默认情况下,它传递行的索引)

void gvIngevuld_RowCommand(Object sender, GridViewCommandEventArgs e)
 {
 // If multiple buttons are used in a GridView control, use the
 // CommandName property to determine which button was clicked.
 if(e.CommandName=="pdf_click")
  {
   // Convert the row index stored in the CommandArgument
   // property to an Integer.
   int index = Convert.ToInt32(e.CommandArgument);

   // Retrieve the row that contains the button clicked 
   // by the user from the Rows collection.
   GridViewRow row = gvIngevuld.Rows[index]; 
   //gbIngevuld is your GridView's name

   // Now you have access to the gridviewrow.
  }  
}   

此外,如果您已设置DataKeyNamesgridview,则可以按如下方式访问它:

    int index = Convert.ToInt32(e.CommandArgument);
    int ServerID = Convert.ToInt32(GridView1.DataKeys[index].Value);