Hi.

I'm using MS 2010 (.Net 3.5) with latest service release of "NetAdvantage for Web Client 2010 Vol. 2"

I have WebDataGrid with two TemplateDataColumns in it.

When I perform filtering on any column (doesn't matter if this column of BoundData type or of Template one)  application crashes with following error:

[NullReferenceException: Object reference not set to an instance of an object.]
   Infragistics.Web.UI.GridControls.WebDataGrid.InstantiateTemplates() +594
   Infragistics.Web.UI.GridControls.BaseGrid.EnsureTemplates() +10
   Infragistics.Web.UI.GridControls.WebDataGrid.CreateChildControls() +41
   System.Web.UI.Control.EnsureChildControls() +87
   Infragistics.Web.UI.GridControls.WebDataGrid.EnsureChildControls() +71
   Infragistics.Web.UI.GridControls.WebDataGrid.DataBind() +464
   Infragistics.Web.UI.GridControls.Filtering.ApplyFilter() +188
   Infragistics.Web.UI.GridControls.Filtering.OnAction(String actionType, Object id, Object value, Object tag) +51
   Infragistics.Web.UI.GridControls.GridBehavior.Infragistics.Web.UI.GridControls.IGridBehavior.OnAction(String actionType, Object id, Object value, Object tag) +19
   Infragistics.Web.UI.GridControls.GridBot.LoadAdditionalClientState(Object state) +441
   Infragistics.Web.UI.Framework.RunBot.HandleRaisePostDataChangedEvent() +99
   Infragistics.Web.UI.GridControls.GridBot.HandleRaisePostDataChangedEvent() +42
   Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.RaisePostDataChangedEvent() +15
   System.Web.UI.Page.RaiseChangedEvents() +165
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1485

Is there any workaround for this issue?

Also here is markup for webdatagrid control:

<ig:WebDataGrid ID="wdgPortals" runat="server" Width="100%" AutoGenerateColumns="False"
        DataKeyFields="PortalId" DataSourceID="dsPortalView" EnableAjax="False" OnRowSelectionChanged="wdgPortals_RowSelectionChanged">
        <Columns>
          <ig:BoundDataField DataFieldName="CompanyName" Key="CompanyName">
            <Header Text="Company" />
          </ig:BoundDataField>
          <ig:BoundDataField DataFieldName="Name" Key="Name">
            <Header Text="Name" />
          </ig:BoundDataField>
          <ig:TemplateDataField Key="IsEnabled">
            <ItemTemplate>
              <asp:CheckBox CssClass="autow" ID="chbEnabled" runat="server" Checked='<%# ((((Portal.BusinessLogic.Model.VwPortal)((Infragistics.Web.UI.TemplateContainer)Container).DataItem).IsEnabled == 1) ? true : false) %>'
                Enabled="False" />
            </ItemTemplate>
            <Header Text="Enabled" />
          </ig:TemplateDataField>
          <ig:TemplateDataField Key="UsersCount">
            <ItemTemplate>
              <%# ((Portal.BusinessLogic.Model.VwPortal)((Infragistics.Web.UI.TemplateContainer)Container).DataItem).UsersCount %>
            </ItemTemplate>
            <Header Text="# users" />
          </ig:TemplateDataField>
        </Columns>
        <Behaviors>
          <ig:Paging PageSize="10">
          </ig:Paging>
          <ig:RowSelectors>
          </ig:RowSelectors>
          <ig:Selection CellClickAction="Row" CellSelectType="None" RowSelectType="Single">
            <AutoPostBackFlags RowSelectionChanged="True" />
          </ig:Selection>
          <ig:Sorting>
            <ColumnSettings>
              <ig:SortingColumnSetting ColumnKey="CompanyName" />
              <ig:SortingColumnSetting ColumnKey="Name" />
              <ig:SortingColumnSetting ColumnKey="IsEnabled" Sortable="False" />
            </ColumnSettings>
          </ig:Sorting>
          <ig:Filtering AnimationEnabled="true" AnimationType="Bounce" Enabled="true" ></ig:Filtering>
        </Behaviors>
      </ig:WebDataGrid>

* This source code was highlighted with Source Code Highlighter .