Hello there,

the user should be able to sort some columns, this can be normal text (names), numbers or dates.

I found this example on your page: http://help.infragistics.com/Help/NetAdvantage/ASPNET/2012.1/CLR4.0/html/WebDataGrid_Sorting.html 

The example just binds directly to the data, in my case, I have Templates as columns:

<ig:TemplateDataField Key="Name" Width="260px">

<HeaderTemplate>

<asp:Label ID="lblNameHeader" runat="server">Name</asp:Label><br>

</HeaderTemplate>

<ItemTemplate>

<asp:LinkButton ID="linkBtnName" runat="server" CausesValidation="False" CommandName="Link"

Width="200px" Font-Underline="true" Style="white-space: pre-wrap;">linkBtnName</asp:LinkButton>

</ItemTemplate>

<FooterTemplate>

<div class="rowSelectEdit">

<stgwc:TextEdit runat="server" ID="txtIndvId" Width="0px" />

<asp:Label runat="server" ID="lblNameEdit" CssClass="lblRequiredField" Style="white-space: pre-wrap;">

</asp:Label>

<stgwc:ImageLinkButton ID="ibutChange" runat="server" CssClass="icoButton" ToolTip="Opens a search page where you can find your roles entry."

CausesValidation="False" ImageUrl="Images/base/Icons/16x16/media_play_green.png"

CommandName="SearchIndOrgInsert">

</stgwc:ImageLinkButton>

</div>

</FooterTemplate>

</ig:TemplateDataField>

In the Code behind, I set the sorting like this:

private void InitializeSortButtons()

        {

            dgrRoles.Behaviors.CreateBehavior<Infragistics.Web.UI.GridControls.

Sorting>();

            dgrRoles.Behaviors.Sorting.SortingMode =

SortingMode.Single;

            dgrRoles.Behaviors.Sorting.SortedColumns.Add(dgrRoles.Columns[COL_NAME], Infragistics.Web.UI.

SortDirection.Ascending);

            dgrRoles.Behaviors.Sorting.SortedColumns.Add(dgrRoles.Columns[COL_NAME], Infragistics.Web.UI.

SortDirection.Descending);

        }

const string COL_NAME = "Name";

But I get an error on the preRender:

"An unexpected error occured. Cannot find column Name."

Am I missing something? Is it possible to sort with the template fields?

BTW: Is there a possibility to format code better?

Thanks for your response!