[Solved] Custom footer issue

[Krystal]

Hi,
I have a grid view with 20+ columns and custom footers to show the total based on some business logic.

My issue is when I scroll to the right, some of the columns footer values are missing. (see attached screen shot). this happens when first time page is loading. But if I go to other Tabs on the page and come back again, then some of the misssing footer values are showing but not all.
Below is my xaml code:

<telerikgridview:RadGridView Name="grdNoms" ShowGroupPanel="False" AutoGenerateColumns="False" ShowInsertRow="False" RowIndicatorVisibility="Visible"
                                     ShowColumnFooters="true" Grid.Row="1" HorizontalAlignment="Left" CanUserFreezeColumns="False"
                                     EnableColumnVirtualization="False" EnableRowVirtualization="True" FrozenColumnCount="1" SelectionMode="Extended"
                                     RowLoaded="grdNoms_RowLoaded" DataLoaded="grdNoms_DataLoaded">
<telerikgridview:RadGridView.Columns>
                            <telerikgridview:GridViewDataColumn Header="Well Name" UniqueName="unqWellName" IsReadOnly="True"
                                      TextWrapping="Wrap" IsSortable="True" SortMemberPath="WellName"
                                      IsFilterable="True" DataMemberBinding="{Binding WellName}" HeaderCellStyle="{StaticResource GridViewHeaderBackgroundStyle}" Footer="Total: " FooterTextAlignment="Center">
                            </telerikgridview:GridViewDataColumn>

                            <telerikgridview:GridViewDataColumn Header="Vol1" UniqueName="unqDayN3Vol1" IsReadOnly="True" IsSortable="True" SortMemberPath="DayN3Vol1" IsFilterable="False" DataMemberBinding="{Binding DayN3Vol1}" HeaderCellStyle="{StaticResource GridViewHeaderBackgroundStyle}" CellStyle="{StaticResource GridViewCellStyle_Alternate}" DataFormatString="{}{0:N0}" FooterTextAlignment="Center" >
                                <telerikgridview:GridViewDataColumn.CellTemplate>
                                    <DataTemplate>
                                        <StackPanel Orientation="Horizontal">
                                            <TextBlock Text="{Binding DayN3Vol1, StringFormat='N0'}"></TextBlock>
                                            <TextBlock Text="{Binding DayN3StatusCode}" ></TextBlock>
                                        </StackPanel>
                                    </DataTemplate>
                                </telerikgridview:GridViewDataColumn.CellTemplate>
                                <telerikgridview:GridViewDataColumn.Footer>
                                    <TextBlock Text="" />
                                </telerikgridview:GridViewDataColumn.Footer>
                            </telerikgridview:GridViewDataColumn>
</telerikgridview:RadGridView.Columns>
                    </telerikgridview:RadGridView>

And here is the code which populates footer text.

private void grdNoms_DataLoaded(object sender, EventArgs e)
        {
            TextBlock oTxt = null;

            try
            {
                if (oFooterData != null)
                {
                    foreach (GridViewColumn oCol in grdNoms.Columns)
                    {
                        oTxt = oCol.Footer as TextBlock;

                        if (oTxt != null)
                            oTxt.Text = oFooterData[oCol.UniqueName].ToString("N0");
                    }
                }
            }
            catch (Exception _ex)
            {
                LogErrorMessage(_ex, "grdNoms_DataLoaded");
            }
        }

Please can some one help me to overcome this issue. And BTW, I am using Telerik version 2011.1.419.1040

Thanks.

[Maya]

Hello Krystal,

I would recommend you to define aggregate functions instead. If the built-in aggregates are no appropriate for you, you may either create a custom one or add a generic AggregateExpression. 
Let me know in case you need any further assistance.

Kind regards,
Maya
the Telerik team