Setting template for ValidationSummary

[Jeff]

In an earlier thread, Ivan wrote:

    "You can create a new ControlTemplate for DataFormValidationSummary and set it through RadDataForm's ValidationSummaryStyle property. In this ControlTemplate you can set a new ItemTemplate to the ItemsControl placed in the summary. Please, use the latest internal build, if possible, as we have fixed a related issue there."

I'm trying to do this, but I'm only about half-way there.

I'm setting ValidationSummaryStyle on the RadDataForm:

<telerik:RadDataForm
        ...
        ValidationSummaryStyle="{StaticResource validationSummaryStyle}"
        />

And in Resources I'm defining the style that sets DataFormValidationSummary.Template, and the ControlTemplate that it is being set to.

<UserControl.Resources>

    <ControlTemplate x:Key="validationSummaryTemplate">
        <Label>Foo</Label>
    </ControlTemplate>

    <Style TargetType="telerikDataForm:DataFormValidationSummary" x:Key="validationSummaryStyle">
        <Setter Property="Template" Value="{StaticResource validationSummaryTemplate}" />
    </Style>
</UserControl.Resources>

And this works, so far is it goes.  I see the string "Foo" in the appropriate spot.

But I'm unclear as to what "set a new ItemTemplate to the ItemsControl placed in the summary" is supposed to mean. 

[Ivan Ivanov]

Hi,

I will try to explain my previous point on this. Here is the default template for the validation summary is OfficeBlack:

<ControlTemplate x:Key="DataFormValidationSummaryTemplate" TargetType="dataForm:DataFormValidationSummary">
       <Border BorderThickness="0,1,0,0" BorderBrush="{StaticResource ValidationSummary_BorderBrush}" Background="{StaticResource ValidationSummary_Background}" Height="{TemplateBinding Height}">
           <ItemsControl IsTabStop="False" ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Errors}" >
               <ItemsControl.Style>
                   <Style TargetType="ItemsControl">
                       <Setter Property="Template">
                           <Setter.Value>
                               <ControlTemplate>
                                   <ScrollViewer IsTabStop="False" Name="ScrollViewer" BorderBrush="{StaticResource ControlOuterBorder}" BorderThickness="0,0,0,1" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto" telerik:StyleManager.Theme="{StaticResource Theme}">
                                       <ItemsPresenter/>
                                   </ScrollViewer>
                               </ControlTemplate>
                           </Setter.Value>
                       </Setter>
                       <Setter Property="ItemTemplate">
                           <Setter.Value>
                               <DataTemplate>
                                   <StackPanel Orientation="Horizontal">
                                       <TextBlock Foreground="{StaticResource ValidationSummary_Foreground}" Margin="5,5,0,5" FontWeight="Bold" Text="{Binding SourceFieldDisplayName}"/>
                                       <TextBlock Foreground="{StaticResource ValidationSummary_Foreground}" FontWeight="Bold"  Text=":" Margin="0,5,0,0" />
                                       <TextBlock Margin="5,5,0,5" Text="{Binding ErrorContent}" />
                                   </StackPanel>
                               </DataTemplate>
                           </Setter.Value>
                       </Setter>
                       <Setter Property="MaxHeight" Value="75"/>
                   </Style>
               </ItemsControl.Style>
           </ItemsControl>
       </Border>
   </ControlTemplate>

As you can see the errors are listed in a scrollable ItemsControl, which has a customized ItemTemplate that consists of 3 textblocks. You can modify this, in order to make it fit to your needs.Greetings,
Ivan Ivanov
the Telerik team