Dynamic control Command Event won't fire first time!

[rsdev]

Hi,

I am dynamically creating controls as part of a paging system for a grid view in an updatepanel.

I have attached a CommandEventHandler to the control. So far so good!

But when a click on the Dynamic control (LinkButton) first time it doesn't fire the event. I have read the page DOM and it seems that the button changes ID after the first click and then stays the same.

Why does the ID change? And is this the reason it doesn't fire the first event?

Thanks in advance for any help!

[r035198x]

Hi,

I am dynamically creating controls as part of a paging system for a grid view in an updatepanel.

I have attached a CommandEventHandler to the control. So far so good!

But when a click on the Dynamic control (LinkButton) first time it doesn't fire the event. I have read the page DOM and it seems that the button changes ID after the first click and then stays the same.

Why does the ID change? And is this the reason it doesn't fire the first event?

Thanks in advance for any help!

Any chance that you are going to post the code that's misbehaving?

[rsdev]

Yep! No Problem.

protected override void OnLoad(EventArgs e)
{
            //Create paging buttons
            HtmlTableRow row = new HtmlTableRow();
 
            int numLinks = (int)Math.Ceiling((decimal)LinkInfo.numLinks / 5);
            for (int i = 1; i <= numLinks; i++)
            {
                pagingLink = new LinkButton();
 
                pagingLink.Text = i.ToString();
                pagingLink.CommandName = i.ToString();
                pagingLink.CommandArgument = i.ToString();
                pagingLink.Command += new CommandEventHandler(GetNextPage_Click);
                pagingLink.ID = "linkspagingButton" + i.ToString();
 
                HtmlTableCell cell = new HtmlTableCell();
                cell.Controls.Add(pagingLink);
                row.Cells.Add(cell);
                if (i < numLinks)
                {
                    HtmlTableCell cell2 = new HtmlTableCell();
                    cell2.InnerHtml = "/";
                    row.Cells.Add(cell2);
                }
            }
            HtmlTable t = (HtmlTable)FindControl("pagingTable");
            t.Rows.Add(row);
 
            base.OnLoad(e);
}
 
 
DOM First time
 
<TABLE id=ctl00_CMS_CMSControl_1_pagingTable cellSpacing=0 cellPadding=0>
<TBODY>
<TR>
<TD><A id=ctl00_CMS_CMSControl_1_linkspagingButton1 href="javascript:__doPostBack('ctl00$CMS$CMSControl$1$linkspagingButton1','')">1</A></TD>
<TD>/</TD>
<TD><A id=ctl00_CMS_CMSControl_1_linkspagingButton2 href="javascript:__doPostBack('ctl00$CMS$CMSControl$1$linkspagingButton2','')">2</A></TD></TR></TBODY></TABLE></DIV>
 
DOM Second time
 
<TABLE id=ctl00_CMS_CMSControl_ctl04_pagingTable cellSpacing=0 cellPadding=0>
<TBODY>
<TR>
<TD><A id=ctl00_CMS_CMSControl_ctl04_linkspagingButton1 href="javascript:__doPostBack('ctl00$CMS$CMSControl$ctl04$linkspagingButton1','')">1</A></TD>
<TD>/</TD>
<TD><A id=ctl00_CMS_CMSControl_ctl04_linkspagingButton2 href="javascript:__doPostBack('ctl00$CMS$CMSControl$ctl04$linkspagingButton2','')">2</A></TD></TR></TBODY></TABLE></DIV>
 

Let me know if you need more!

Thanks.