ItemTemplateSelector not working

[Johannes]

I am trying to use ItemTemplateSelector for RadOutlookBar because I want the selected Item to ​look different from the non selected. Using ItemTemplate works fine but when I use an ItemTemplateSelector the constructor for ​​that custom DataTemplateSelector is called but method SelectTemplate is never called. I am using Version 2013.3.1316.45.

[Johannes]

Here's my Control:

 

<telerik:RadOutlookBar ItemsSource="{Binding OutlookBarControlViewModel.Items, Mode=OneWay}" SelectedItem="{Binding OutlookBarControlViewModel.CurrentItem, Mode=TwoWay}" Style="{StaticResource RadOutlookBarStyle}">
  <telerik:RadOutlookBar.ItemTemplateSelector>
    <local:OutlookBarItemTemplateSelector>
      <local:OutlookBarItemTemplateSelector.CurrentItemDataTemplate>
        <DataTemplate>
        ...
        </DataTemplate>
      </local:OutlookBarItemTemplateSelector.CurrentItemDataTemplate>
      <local:OutlookBarItemTemplateSelector.ItemDataTemplate>
        <DataTemplate>
          ...
        </DataTemplate>
      </local:OutlookBarItemTemplateSelector.ItemDataTemplate>
    </local:OutlookBarItemTemplateSelector>
  </telerik:RadOutlookBar.ItemTemplateSelector>
</telerik:RadOutlookBar>

[Peshito]

Hello Johannes,

Thank you for providing the code for the issue. I will take a look and check whether this is indeed an issue and will let you know with more information on the matter.

Regards,
Peshito
Telerik

[Peshito]

Hi Johannes,

After investigating this issue, it seems that you have hit a bug. I logged it in our Feedback Portal and you can track its progress and also give your vote using the link below:
http://feedback.telerik.com/Project/143/Feedback/Details/169682-itemtemplateselector-does-not-work

In the meantime there is a workaround you could use. You should edit control's template and update the HeaderElement ContentControl where the ContentTemplateSelector should be as follows:

<ContentControl x:Name="HeaderElement" Margin="3 0 0 0"
                                                             FontWeight="{TemplateBinding FontWeight}"
                                                             FontSize="{TemplateBinding FontSize}"
                                                             Content="{TemplateBinding Header}"
                                                             ContentTemplate="{TemplateBinding HeaderTemplate}"
                                                             HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                             VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                                             Foreground="{TemplateBinding Foreground}"
                                                             IsTabStop="False" >
                                                                                                             <ContentControl.ContentStringFormat>{TemplateBinding HeaderStringFormat}</ContentControl.ContentStringFormat>
                                                <ContentControl.ContentTemplateSelector>{TemplateBinding HeaderTemplateSelector}</ContentControl.ContentTemplateSelector>
                                                <ContentControl.SnapsToDevicePixels>True</ContentControl.SnapsToDevicePixels>

                                  </ContentControl>

As a gratitude to this finding your Telerik points are now updated. Thank you for reporting this!

Regards,
Peshito
Telerik