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Collapsing a RadTreeViewItem container when part is set to Visibility.Collapsed

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Tim asked on 25 Jan 2010, 10:06 PM

1-25-2010-4-57-20-pm.png

A picture is worth 1000 words. In the attached, I have a template with a text block which is set to Visible on error and Collapsed when the error goes away. On the initial Collapsed -> Visible, the RadTreeViewItem container expands to make room, but on Visible -> Collapsed, the remaining component re-centers itself without the additional space disappearing. You can see that Tier2.2_F has never had an error, but that Tier1.1_F has, and so has Tier1.1_LF. Tier1.2_F currently has the error text expanded.

The template is:

    
                    <DataTemplate x:Key="XXXTemplate"> 
        
                        <StackPanel Orientation="Vertical"> 
        
                            <StackPanel Orientation="Horizontal"> 
        
                                <Image Margin="2,0,2,0"  Source="xxx.png"/> 
        
                                <TextBlock Text="{Binding XXX}" /> 
        
                            </StackPanel> 
        
                            <TextBlock Margin="20,0,0,0" Style="{StaticResource ValidationTextStyle}" TextWrapping="Wrap" MaxWidth="400"  
        
                                       Visibility="{Binding IsValidationMessageVisible, Converter={StaticResource BoolToVisibilityConverter}}" 
        
                                       Text="{Binding Path=ValidationMessage}"/> 
        
                        </StackPanel> 
        
                    </DataTemplate>

I would like it if the tree collapsed the extra space. Is this intentional? Side-effect of StackPanel?

Thanks,
Tim

3 Answers, 1 is accepted

answered on 27 Jan 2010, 04:05 PM

Hi Tim,

Indeed RadTreeView has some issues regarding this scenario. Thank you for your report and we will do our best to fix it as soon as possible. However, I cannot bind to a specific date for the fix. I have also added 1000 Telerik points to your account. Let me know if you have additional questions regarding this topic.

Sincerely yours,
Kiril Stanoev
the Telerik team

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