How can all PropertyDefinition groups Collapse/Expand by XAML code or MVVM pattern ?

[Elena]

Hello, 
How can all PropertyDefinition groups Collapse/Expand by XAML code or MVVM pattern ? I've tried IsExpanded property set to False but not work.

<telerik:RadPropertyGrid x:Name="propertyGrid1" AutoGenerateBindingPaths="False"
                         Grid.Column="2"
                         Item="{Binding}"
                         LabelColumnWidth="180"
                         AutoGeneratePropertyDefinitions="False" IsGrouped="True">
    <telerik:RadPropertyGrid.PropertyDefinitions>
        <telerik:PropertyDefinition Binding="{Binding bind}" OrderIndex="0" IsExpanded="False"
                                    GroupName="Group1"
                                    DisplayName="Enable"/>
        <telerik:PropertyDefinition GroupName="Group1" OrderIndex="1"
                                    DisplayName="DisplayName1"/>
        <telerik:PropertyDefinition GroupName="Group2" OrderIndex="2"
                                    DisplayName="DisplayName2"/>
        <telerik:PropertyDefinition GroupName="Group3" OrderIndex="3"
                                    DisplayName="DisplayName3" />
    </telerik:RadPropertyGrid.PropertyDefinitions>
</telerik:RadPropertyGrid>

[Elena]

Sorry, Please this post transferred to the WPF section.

[Maya]

Hello Elena,

You can work with CollapseAllGroups() method of RadPropertyGrid (you need to set RenderMode property to "Flat" as well). 
Do you want to perform this on a button click, on loading of the control or on another action ? 

Regards,
Maya
Telerik

 

 

[Elena]

Hello Maya,

Is possible Collapse all group by XAML side ?

[Maya]

Hello Elena,

Currently, this cannot be achieved only through xaml. What you can try instead is to create a custom attached behavior and call CollapseAllGroups() method in Loaded event of RadPropertyGrid. 
In that way you will have code only in xaml and none in the code behind.
A similar example can be found in the "Header Context Menu" demo of RadGridView. 


Regards,
Maya
Telerik