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Access a conrol outside grid from ItemCommand

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rms
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rms asked on 30 Apr 2012, 05:19 PM
Hi,

my requirement is to show list of values in a grid and when the user clicks on one of the columns, I have to display a radbutton. this button is on the page and is outside the grid
I am getting the commandname in the itemcommand event and trying to make radbutton visible.  button.visible=true. when i debug the code it looks like its working but the button is not diplayed. this button is invisible by default.
do i have to do a find control like i do for the controls inside the grid? if so what is the syntax for it?

Thanks.



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Jayesh Goyani
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answered on 30 Apr 2012, 05:49 PM
Hello,

Please check below code snippet.

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" >
 
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="RadGrid1">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="RadGrid1" />
                    <telerik:AjaxUpdatedControl ControlID="Button1" />
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>
    </telerik:RadAjaxManager>

let me know if any concern.

Thanks,
Jayesh Goyani
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rms
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answered on 30 Apr 2012, 06:36 PM
That worked! thank you for a quick reply.
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rms
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answered on 02 May 2012, 08:24 PM
I have another Issue now. I think this is also related to the above thats why I am posting in the same thread.

I am trying to give a download functionality to the user on my page.

Response.ClearContent()

Response.ContentType =

 

"application/vnd.xls"

 

Response.AppendHeader(

 

"Content-Disposition", "attachment; filename=" & OnlyName)

 

Response.TransmitFile(filename)

Response.End()

the above code does not seem to work. this is on the same page where I have my Radgrid. What could be the work around for this?

Thanks

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Pavlina
Telerik team
answered on 07 May 2012, 01:53 PM
Hi,

The help article below describes how to download files with Ajaxified controls:
http://www.telerik.com/help/aspnet-ajax/ajax-download.html

Kind regards,
Pavlina
the Telerik team
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Jayesh Goyani
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answered on 07 May 2012, 06:44 PM
Hello,

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <ClientEvents OnRequestStart="onRequestStart" />
         
    </telerik:RadAjaxManager>
<script type="text/javascript">
        function onRequestStart(sender, args)
        {
            if (args.get_eventTarget().indexOf("lnkDownload") >= 0)
            {
                args.set_enableAjax(false);
            }
        }
    </script>
<MasterTableView DataKeyNames="ID" >
                <Columns>
                     
                    <telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID">
                    </telerik:GridBoundColumn>
                     
                    <telerik:GridTemplateColumn>
                        <ItemTemplate>
                            <asp:LinkButton ID="lnkDownload" runat="server" Text="Download sample excel file"
                                OnClick="lnkDownload_Click" CausesValidation="false"></asp:LinkButton>
                        </ItemTemplate>
                    </telerik:GridTemplateColumn>
                </Columns>
            </MasterTableView>
protected void lnkDownload_Click(object sender, EventArgs e)
        {
            // you can access your grid row
            Button lnkDownload = sender as Button;
            GridDataItem item = lnkDownload.NamingContainer as GridDataItem;
            string str1 = item.GetDataKeyValue("ID").ToString(); // by datakey ID
            string str2 = item["ID"].Text; // by column name
            try
            {
 
                string path = Server.MapPath("~/filepath/YourFilename.xlsx");
                string attachment = "attachment; filename=yourfilename.xlsx";
                Response.Clear();
                Response.AddHeader("content-disposition", attachment);
                Response.ContentType = "text/plain";
                Response.WriteFile(path);
                Response.End();
            }
            catch (Exception ex)
            {
                 
            }
        }


Thanks,
Jayesh Goyani
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rms
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answered on 08 May 2012, 03:32 PM
Both the solutions worked. Thank you Jayesh and Pavlina.
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rms
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Jayesh Goyani
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rms
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Pavlina
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