hi,
i'm new to .net 2.0, and am just starting to get to grips with the
gridview.
my page has autoEventWireUp set to true, which i gather is supposed to
figure out which handlers to invoke when appropriate based on your
method names .
the GridView has OnRowCommand="G ridView1_RowCom mand" in the aspx.
my problem is that the RowCommand event is firing twice (95% of the
time) on the page. the other 5% it only fires once. there's no
consistency at all.
in .net 1.1, i would have understood that the code-behind was wiring up
the event, and the aspx was doing the same thing, so this would result
in the event being raised twice. however, in .net 2, i can't find any
code-behind that would be doing this (even looked in temp.asp.net
files).
if i set autoEventWireUp =true, with the OnRowCommand declared in the
GridView aspx, Page_Load fires twice, so does GridView1_RowCo mmand.
if i set AutoEventWireup =false, PageLoad doesn't fire (as is expected)
and GridView1_RowCo mmand only fires once. but occassionally it fires
twice. this is painful! somebody please put me out of my misery :-)
here is my code:
******** ASPX *********
<%@ Page Language="C#" AutoEventWireup ="false"
CodeFile="TestG ridView.aspx.cs " Inherits="Admin _TestGridView" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dt d">
<html xmlns="http://www.w3.org/1999/xhtml">
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateCol umns="False" DataKeyNames="P ageID"
DataSourceID="d sPages"
OnRowCommand="G ridView1_RowCom mand">
<Columns>
<asp:BoundFie ld DataField="Titl eForEdit"
HeaderText="Tit le" />
<asp:ButtonFiel d ButtonType="Ima ge"
CommandName="Mo veUp" ImageUrl="../Images/Move_Up.gif"
Text="Move this page up one position" />
<asp:ButtonFiel d ButtonType="Ima ge"
CommandName="Mo veDown" ImageUrl="../Images/Move_Down.gif"
Text="Move this page down one position" />
</Columns>
</asp:GridView>
<asp:ObjectData Source ID="dsPages" runat="server"
SelectMethod="S elect" TypeName="PageM anager">
</asp:ObjectDataS ource>
</form>
</body>
</html>
********** CODE BEHIND ***********
public partial class Admin_TestGridV iew : System.Web.UI.P age
{
protected void Page_Load(objec t sender, EventArgs e)
{
Response.Write( "Page_Load<HR>" );
}
protected void GridView1_RowCo mmand(object sender,
GridViewCommand EventArgs e)
{
Response.Write( "GridView1_RowC ommand<HR>");
}
}
what i did was put break-points in both events, debug, and keep
clicking the up/down buttons until you see the event hit twice for one
click.
thank you
tim
