AggregateFunction and converter

[Bartosz]

I have fallowing code:

<telerik:GridViewDataColumn DataMemberBinding="{Binding Role, Converter={StaticResource conv}}" >
   <telerik:GridViewDataColumn.AggregateFunctions>
       <telerik:SumFunction Caption="sum:"  />
    </telerik:GridViewDataColumn.AggregateFunctions>
</telerik:GridViewDataColumn>

I cannot get this to work as AggregateFunction is not taking convert into account how I can change that ?

I am using latest release of telerik controls with .Net 4.

[Nedyalko Nikolov]

Hello Bartosz,

You can use AggregateFunction.ResultFormatString property. For more information you can take a look at this online example.
Let me know if this doesn't help.

All the best,
Nedyalko Nikolov
the Telerik team

[anastasia]

Hello!!

I'd like to use AggregateFunction result for formatting like in demo example

something like:

<telerik:GridViewDataColumn
DataMemberBinding="{Binding WaitSecond, Converter={StaticResource SecondsToDateConverter}}"
DataFormatString="{}{0:HH:mm:ss}">

</telerik:GridViewDataColumn >

here WaitSecond is decimal, but it shows like Time

I need similar decision for AggregateFunction

Thanks!

[Dilyan Traykov]

Hello ,

What I can suggest in this scenario is to define a custom template for the footer of your column and specify the converter for the binding of the FormattedValue property as demonstrated in this article.

    <telerik:GridViewDataColumn.Footer>
        <StackPanel Orientation="Vertical"
Margin="0,10">
            <TextBlock Text="Custom footer with aggregates:"
   Margin="0,0,0,2" />
            <telerik:AggregateResultsList ItemsSource="{Binding}"
                      VerticalAlignment="Center"
                      Grid.Column="4">
                <ItemsControl.ItemTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Horizontal"
                VerticalAlignment="Center">
                            <TextBlock VerticalAlignment="Center"
                   Text="{Binding Caption}" />
                            <TextBlock VerticalAlignment="Center"
                   Text="{Binding FormattedValue, Converter={StaticResource SecondsToDateConverter}}" />
                        </StackPanel>
                    </DataTemplate>
                </ItemsControl.ItemTemplate>
                <ItemsControl.ItemsPanel>
                    <ItemsPanelTemplate>
                        <StackPanel Orientation="Vertical" />
                    </ItemsPanelTemplate>
                </ItemsControl.ItemsPanel>
            </telerik:AggregateResultsList>
        </StackPanel>
    </telerik:GridViewDataColumn.Footer>

Please let me know whether this would work for you.

Regards,
Dilyan Traykov
Telerik by Progress