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Remove Outer TreeView Line

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Ryan Black
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Ryan Black asked on 04 Aug 2010, 10:03 PM
I am trying to remove the outer line in the treeview as you can see highlighted in the red box.

My Inner RadTreeViewItemControl Template has the following code in the ListRootContainer section regarding the lines.

<Rectangle x:Name="HorizontalLine" Stroke="{StaticResource LineBrush}" Height="1" HorizontalAlignment="Right" VerticalAlignment="Center">
                        <Rectangle.Clip>
                            <RectangleGeometry Rect="0,0,10000,1"/>
                        </Rectangle.Clip>
                    </Rectangle>
                    <Rectangle x:Name="VerticalLine" Stroke="{StaticResource LineBrush}" HorizontalAlignment="Center" VerticalAlignment="Top" Width="1">
                        <Rectangle.Clip>
                            <RectangleGeometry Rect="0,0,1,10000"/>
                        </Rectangle.Clip>
                    </Rectangle>

Is this possible?

Thanks
Ryan

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Miroslav
Telerik team
answered on 05 Aug 2010, 10:00 AM
Hi Ryan Black,

The TreeView has two properties controlling the lines:

IsLineEnabled & IsRootLinesEnabled

As far as I can gather from your screenshot, setting

IsRootLinesEnabled = "False" should hide this line.

Does this work for you?

Kind regards,
Miroslav
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Ryan Black
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answered on 06 Aug 2010, 04:08 PM
That worked perfect.  Now I have noticed another imperfection with the lines.  They are not even as I go to sub levels as depicted from my image.  What can be done to fix this?

http://i38.tinypic.com/mh7ogi.png

Thanks
Ryan
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Miroslav
Telerik team
answered on 11 Aug 2010, 03:53 PM
Hello Ryan Black,

I tested this with the official version of the controls and it does not happen with the default theme. It looks like you have a custom ControlTemplate and it may be because of it.

We will be happy to look at your template if you can paste it here.

Regards,
Miroslav
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Ryan Black
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answered on 11 Aug 2010, 04:00 PM
I do have a custom template.  Thanks for taking a look.
Ryan

  <!-- ListItem Background -->
  <SolidColorBrush x:Key="FTV_ListItemBackground" Color="#FF051C2D" Opacity=".2" />
   
  <!-- List Sub1 Focus-->
  <LinearGradientBrush EndPoint="0.5,1"
                       x:Key="FTV_GotFocusSub1"
                       StartPoint="0.5,0">
      <LinearGradientBrush.RelativeTransform>
          <TransformGroup>
              <ScaleTransform CenterX="0.5"
                              CenterY="0.5" />
              <SkewTransform CenterX="0.5"
                             CenterY="0.5" />
              <RotateTransform CenterX="0.5"
                               CenterY="0.5"
                               Angle="90" />
              <TranslateTransform />
          </TransformGroup>
      </LinearGradientBrush.RelativeTransform>
      <GradientStop Color="#00000506" />
      <GradientStop Color="#FF004646"
                    Offset="1" />
  </LinearGradientBrush>
 
  <!-- List Sub2 Focus-->
  <LinearGradientBrush EndPoint="0.5,1"
                       x:Key="FTV_GotFocusSub2"
                       StartPoint="0.5,0">
      <LinearGradientBrush.RelativeTransform>
          <TransformGroup>
              <ScaleTransform CenterX="0.5"
                              CenterY="0.5" />
              <SkewTransform CenterX="0.5"
                             CenterY="0.5" />
              <RotateTransform CenterX="0.5"
                               CenterY="0.5"
                               Angle="90" />
              <TranslateTransform />
          </TransformGroup>
      </LinearGradientBrush.RelativeTransform>
      <GradientStop Color="#00000506" />
      <GradientStop Color="#FF00262A"
                    Offset="1" />
  </LinearGradientBrush>
 
  <!-- List Sub3 Focus -->
  <SolidColorBrush x:Key="FTV_GotFocusSub3" Color="#FF00262A" />
 
  <!-- List SubItem1 UnSelected -->
  <SolidColorBrush x:Key="FTV_LostFocusSub1"
                   Opacity="50" />
 
  <!-- List Item Selected -->
  <LinearGradientBrush x:Key="FTV_GotFocusStyle"  EndPoint="0.5,1" StartPoint="0.5,0">
      <LinearGradientBrush.GradientStops>
          <GradientStop Color="#FF09282A" Offset="0.501"/>
          <GradientStop Color="#FF033E43" Offset="0.5"/>
      </LinearGradientBrush.GradientStops>
  </LinearGradientBrush>
 
  <!-- List Item Hover -->
  <LinearGradientBrush x:Key="FTV_MouseOverFocusStyle" StartPoint="0,0" EndPoint="0,1">
      <LinearGradientBrush.GradientStops>
          <GradientStop Color="#FF01376A" Offset="0.501"/>
          <GradientStop Color="#FF014789" Offset="0.5"/>
      </LinearGradientBrush.GradientStops>
  </LinearGradientBrush>
 
  <!-- List Item UnSelected -->
  <LinearGradientBrush x:Key="FTV_LostFocusStyle" EndPoint="0.5,1" StartPoint="0.5,0">
      <LinearGradientBrush.RelativeTransform>
          <TransformGroup>
              <ScaleTransform CenterX="0.5" CenterY="0.5"/>
              <SkewTransform CenterX="0.5" CenterY="0.5"/>
              <RotateTransform CenterX="0.5" CenterY="0.5"/>
              <TranslateTransform/>
          </TransformGroup>
      </LinearGradientBrush.RelativeTransform>
      <GradientStop Color="#FF091F34" Offset="1"/>
      <GradientStop Color="#FF002F5C" Offset="0.4"/>
  </LinearGradientBrush>
 
  <!-- List Item 0 Highlight -->
  <SolidColorBrush x:Key="FTV_ListItemHighlight"
                   Color="#FF02A08E" />
 
  <!-- List Item 1 Highlight -->
  <SolidColorBrush x:Key="FTV_ListItemHighlightSub1"
                   Color="#FF4FBB82" />
 
  <!-- List Item 0 UnHighlight -->
  <SolidColorBrush x:Key="FTV_ListItemUnHighlight"
                   Color="#FF72BAFF" />
 
  <!-- List Item 3 UnHighlight -->
  <SolidColorBrush x:Key="FTV_ListItemUnHighlightSub3"
                   Color="White" />
 
  <!-- Line Brush -->
  <SolidColorBrush x:Key="LineBrush" Color="#FF193A29"/>
 
  <!-- Button Gradient -->
  <LinearGradientBrush x:Key="FTV_ButtonGradient" EndPoint="0.5,1" StartPoint="0.5,0">
      <GradientStop Color="#FF0E3D70"/>
      <GradientStop Color="#FF001832" Offset="1"/>
  </LinearGradientBrush>
 
<Style x:Key="ExpanderStyleWhite"
         TargetType="{x:Type ToggleButton}">
      <Setter Property="IsEnabled"
              Value="True" />
      <Setter Property="IsTabStop"
              Value="False" />
      <Setter Property="Cursor"
              Value="Hand" />
      <Setter Property="Template">
          <Setter.Value>
              <ControlTemplate TargetType="{x:Type ToggleButton}">
                  <ControlTemplate.Triggers>
                      <Trigger Property="IsMouseOver"
                               Value="True">
                          <Trigger.EnterActions>
                              <BeginStoryboard>
                                  <Storyboard>
                                      <DoubleAnimation Duration="0:0:0.05"
                                                       Storyboard.TargetName="Button"
                                                       Storyboard.TargetProperty="Opacity"
                                                       To="0" />
                                      <DoubleAnimation Duration="0:0:0.05"
                                                       Storyboard.TargetName="ButtonOver"
                                                       Storyboard.TargetProperty="Opacity"
                                                       To="1" />
                                  </Storyboard>
                              </BeginStoryboard>
                          </Trigger.EnterActions>
                      </Trigger>
                      <Trigger Property="IsChecked"
                               Value="True">
                          <Trigger.EnterActions>
                              <BeginStoryboard>
                                  <Storyboard>
                                      <DoubleAnimation Duration="0:0:0.05"
                                                       Storyboard.TargetName="CollapsedVisual"
                                                       Storyboard.TargetProperty="Opacity"
                                                       To="0" />
                                      <DoubleAnimation Duration="0:0:0.05"
                                                       Storyboard.TargetName="CollapsedVisualOver"
                                                       Storyboard.TargetProperty="Opacity"
                                                       To="0" />
                                  </Storyboard>
                              </BeginStoryboard>
                          </Trigger.EnterActions>
                          <Trigger.ExitActions>
                              <BeginStoryboard>
                                  <Storyboard>
                                      <DoubleAnimation Duration="0:0:0.05"
                                                       Storyboard.TargetName="CollapsedVisual"
                                                       Storyboard.TargetProperty="Opacity"
                                                       To="1" />
                                      <DoubleAnimation Duration="0:0:0.05"
                                                       Storyboard.TargetName="CollapsedVisualOver"
                                                       Storyboard.TargetProperty="Opacity"
                                                       To="1" />
                                  </Storyboard>
                              </BeginStoryboard>
                          </Trigger.ExitActions>
                      </Trigger>
 
                  </ControlTemplate.Triggers>
                  <Grid>
                      <Grid x:Name="ButtonOver"
                            Margin="10,0,0,0"
                            HorizontalAlignment="Right"
                            Width="16"
                            Height="16">
                          <Rectangle HorizontalAlignment="Stretch"
                                     VerticalAlignment="Stretch"
                                     Width="Auto"
                                     Height="Auto"
                                     RadiusX="3"
                                     RadiusY="3">
                          </Rectangle>
                          <Rectangle x:Name="CollapsedVisualOver"
                                     HorizontalAlignment="Left"
                                     VerticalAlignment="Top"
                                     Width="2"
                                     Height="8"
                                     RadiusX="0"
                                     RadiusY="0"
                                     Fill="White"
                                     Margin="7,4,0,0" />
                          <Rectangle RadiusX="0"
                                     RadiusY="0"
                                     Fill="White"
                                     HorizontalAlignment="Left"
                                     Margin="4,7,0,0"
                                     VerticalAlignment="Top"
                                     Width="8"
                                     Height="2" />
                      </Grid>
 
                      <Grid x:Name="Button"
                            HorizontalAlignment="Right"
                            VerticalAlignment="Center"
                            Width="16"
                            Height="16">
                          <Rectangle x:Name="CollapsedVisual" />
                      </Grid>
                  </Grid>
              </ControlTemplate>
          </Setter.Value>
      </Setter>
  </Style>
 
 <ControlTemplate x:Key="RadTreeViewItemControlTemplateSub2"
                   TargetType="{x:Type telerikNavigation:RadTreeViewItem}">
      <Grid x:Name="RootElement"  Cursor="Hand"
            MinWidth="300">
          <Grid.RowDefinitions>
              <RowDefinition Height="Auto" />
              <RowDefinition />
          </Grid.RowDefinitions>
          <Grid x:Name="HeaderRow"
                MinHeight="{TemplateBinding MinHeight}"
                SnapsToDevicePixels="True"
                Background="Transparent">
              <Grid.ColumnDefinitions>
                  <ColumnDefinition Width="Auto" />
                  <ColumnDefinition Width="Auto" />
                  <ColumnDefinition Width="Auto" />
                  <ColumnDefinition Width="Auto" />
                  <ColumnDefinition Width="Auto" />
                  <ColumnDefinition Width="Auto" />
              </Grid.ColumnDefinitions>
 
              <Border Grid.ColumnSpan="6"
                      Background="{TemplateBinding Background}"
                      BorderBrush="{TemplateBinding BorderBrush}"
                      BorderThickness="{TemplateBinding BorderThickness}" />
 
              <Border x:Name="MouseOverVisual"
                      Opacity="0"
                      Grid.Column="1"
                      Grid.ColumnSpan="5"
                      Background="{StaticResource FTV_GotFocusSub1}"
                      BorderBrush="Transparent"
                      BorderThickness="1"
                      CornerRadius="1" />
 
              <Border x:Name="SelectionUnfocusedVisual"
                      Visibility="Collapsed"
                      Grid.ColumnSpan="6"
                      BorderBrush="Transparent"
                      Background="{StaticResource FTV_LostFocusSub1}"
                      BorderThickness="1" />
 
              <Border x:Name="SelectionVisual"
                      Visibility="Collapsed"
                      Grid.Column="4"
                      Grid.ColumnSpan="5"
                      BorderBrush="#FF004646"
                      Background="{StaticResource FTV_GotFocusSub3}"
                      BorderThickness="1"
                       />
 
              <StackPanel x:Name="IndentContainer"
                          Orientation="Horizontal">
                  <Rectangle x:Name="IndentFirstVerticalLine" />
              </StackPanel>
              <Grid x:Name="ListRootContainer"
                    HorizontalAlignment="Center"
                    MinWidth="20"
                    Grid.Column="1">
                  <Rectangle x:Name="HorizontalLine" Stroke="{StaticResource LineBrush}" Height="1" HorizontalAlignment="Right" VerticalAlignment="Center">
                      <Rectangle.Clip>
                          <RectangleGeometry Rect="0,0,10000,1"/>
                      </Rectangle.Clip>
                  </Rectangle>
                  <Rectangle x:Name="VerticalLine" Stroke="{StaticResource LineBrush}" HorizontalAlignment="Center" VerticalAlignment="Top" Width="1">
                      <Rectangle.Clip>
                          <RectangleGeometry Rect="0,0,1,10000"/>
                      </Rectangle.Clip>
                  </Rectangle>
                  <ToggleButton Name="SubToggle1"
                                Style="{StaticResource ExpanderStyleWhite}"
                                IsTabStop="False"
                                IsChecked="{TemplateBinding IsExpanded}" />
              </Grid>
              <CheckBox x:Name="CheckBoxElement"
                        Margin="5,0,0,0"
                        VerticalAlignment="Center"
                        IsTabStop="False"
                        Visibility="Collapsed"
                        Grid.Column="2">
              </CheckBox>
              <RadioButton x:Name="RadioButtonElement"
                           Margin="5,0,0,0"
                           VerticalAlignment="Center"
                           IsTabStop="False"
                           Visibility="Collapsed"
                           Grid.Column="2">
              </RadioButton>
              <Image x:Name="Image"
                     HorizontalAlignment="Center"
                     Margin="2"
                     MaxHeight="16"
                     MaxWidth="16"
                     VerticalAlignment="Center"
                     Grid.Column="3"
                     Source="{TemplateBinding DefaultImageSrc}" />
              <Rectangle x:Name="FocusVisual" />
              <Grid Grid.Column="4"
                    Grid.ColumnSpan="2">
                  <ContentPresenter x:Name="Header"
                                    HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                    Margin="{TemplateBinding Padding}"
                                    VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                    ContentSource="Header"/>
                  <ContentPresenter x:Name="EditHeaderElement"
                                    HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                    Margin="{TemplateBinding Padding}"
                                    VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                    Visibility="Collapsed"
                                    ContentTemplate="{TemplateBinding HeaderEditTemplate}" />
              </Grid>
          </Grid>
          <ItemsPresenter x:Name="ItemsHost"
                          Visibility="Collapsed"
                          Grid.Row="1" />
      </Grid>
      <ControlTemplate.Triggers>
          <Trigger Property="IsInEditMode"
                   Value="True">
              <Setter Property="Visibility"
                      TargetName="Header"
                      Value="Collapsed" />
              <Setter Property="Visibility"
                      TargetName="EditHeaderElement"
                      Value="Visible" />
          </Trigger>
          <Trigger Property="IsSelected"
                   Value="True">
              <Setter Property="Visibility"
                      TargetName="SelectionVisual"
                      Value="Visible" />
          </Trigger>
          <Trigger Property="IsFocused"
                   Value="True">
              <Setter Property="Visibility"
                      TargetName="FocusVisual"
                      Value="Visible" />
          </Trigger>
          <MultiTrigger>
              <MultiTrigger.Conditions>
                  <Condition Property="IsSelected"
                             Value="True" />
                  <Condition Property="IsSelectionActive"
                             Value="False" />
              </MultiTrigger.Conditions>
              <Setter Property="Opacity"
                      TargetName="SelectionVisual"
                      Value="0" />
              <Setter Property="Visibility"
                      TargetName="SelectionUnfocusedVisual"
                      Value="Visible" />
          </MultiTrigger>
          <Trigger Property="HasItems"
                   Value="False">
              <Setter Property="Visibility"
                      TargetName="SubToggle1"
                      Value="Collapsed" />
          </Trigger>
          <Trigger Property="IsEnabled"
                   Value="False">
              <Setter Property="Opacity"
                      TargetName="Header"
                      Value="0.5" />
          </Trigger>
          <Trigger Property="IsExpanded"
                   Value="True">
              <Setter Property="Visibility"
                      TargetName="ItemsHost"
                      Value="Visible" />
          </Trigger>
          <Trigger Property="IsDragOver"
                   Value="True">
              <Setter Property="Opacity"
                      TargetName="MouseOverVisual"
                      Value="1" />
          </Trigger>
          <Trigger Property="IsMouseOver"
                   SourceName="HeaderRow"
                   Value="True">
              <Setter Property="Opacity"
                      TargetName="MouseOverVisual"
                      Value="1" />
          </Trigger>
      </ControlTemplate.Triggers>
  </ControlTemplate>
 
  <Style TargetType="{x:Type telerikNavigation:RadTreeViewItem}" x:Key="FileItemStyle">
      <Setter Property="Foreground" Value="White"/>
      <Setter Property="FontStyle" Value="Normal"/>
      <Setter Property="DefaultImageSrc" Value="/Images/TreeView/file.png"/>
      <Setter Property="BorderThickness" Value="0" />
      <Setter Property="Template" Value="{StaticResource RadTreeViewItemControlTemplateSub2}" />
  </Style>
0
Miroslav
Telerik team
answered on 16 Aug 2010, 02:10 PM
Hi Ryan Black,

I attached a project where the xaml is modified.

Please note that the TreeView has an "ExpanderStyle" property which can be used for customizing the look of the ToggleButton (I have used it in the project).

Best wishes,
Miroslav
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Ryan Black
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answered on 16 Aug 2010, 03:27 PM
Miroslav,

That example works perfect, however I am using different expander styles for different containerstyles.  I am unable to have a global expander style for the RadTreeView.  Is there another way to fix the lines?  If not I would recommend that Telerik creates an ExpanderStyleSelector to fix the line issue.

Thanks
Ryan Black
0
Tina Stancheva
Telerik team
answered on 19 Aug 2010, 02:11 PM
Hi Ryan Black,

In this case I suppose you have different ControlTemplates for the different styles you apply to the TreeViewItems using the ItemContainerStyle. If this is the case, you can define different styles for the expander ToggleButton element in each ControlTemplate.

For example you can implement the scenario from the radtreeviewitemrefresh.zip project by removing the ExpanderStyle from the RadTreeView definition and setting it as a style for the Expander ToggleButton in the corresponding ControlTemplate, like so:
<ControlTemplate x:Key="RadTreeViewItemControlTemplateSub2"
    TargetType="{x:Type telerikNavigation:RadTreeViewItem}">
     
    ...
 
    <!-- Collapse/Expand -->
    <ToggleButton x:Name="Expander" IsTabStop="False"
        Style="{StaticResource ExpanderStyleWhite}"
        Background="{TemplateBinding Background}" />
 
    ...
 
</ControlTemplate>

This will allow you to create different ToggleButton styles for each RadTreeViewItemStyle.

Give this approach a try and let us know if it works for you or if we can further assist you.

Sincerely yours,
Tina Stancheva
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Ryan Black
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answered on 19 Aug 2010, 03:27 PM
The problem seems to happen when you have more than one level.  Please see the attached example and you will see the problems I am talking about.

Project Example

Thanks
Ryan

0
Tina Stancheva
Telerik team
answered on 19 Aug 2010, 06:22 PM
Hi Ryan Black,

It seems that the link is broken. Can you paste it again? Thank you in advance.
 
Best wishes,
Tina Stancheva
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Ryan Black
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answered on 19 Aug 2010, 06:25 PM
Opps..

Try this link

Ryan
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Tina Stancheva
Telerik team
answered on 23 Aug 2010, 05:57 PM
Hi Ryan Black,

The link still appears broken. However, I prepared a sample project illustrating how to apply different styles for the different levels of the RadTreeView. The tree represents a three-level hierarchy and for the first two levels different expander styles are applied.

Take a look at it and let me know if this is close to what you had in mind and if it works for you.

Best wishes,
Tina Stancheva
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Ryan Black
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answered on 23 Aug 2010, 06:32 PM
Tina,

I don't see a project attached to the last post.  
The reason the link did not work was because it was appended to the website link since there was no http:// in front.

Here is the revised link if you still want to compare it to your example.

Thanks
Ryan
0
Tina Stancheva
Telerik team
answered on 24 Aug 2010, 09:55 AM
Hi Ryan Black,

First of all, I'd like to appologisze for leaving out the attachment. I attached it here.

Also, after I examined your code, I noticed that you have changed the name of the ToggleButton element in the RadTreeViewItemControlTemplates. This is disabling the "expander" behaviour of the ToggleButton and clicking it does not expand the TreeViewItem. In order to keep this functionality, you should keep the ToggleButton element name - "Expander".

Also, you don't have to apply a style to the button. You can simply edit its ControlTemplate. You can use Expression Blend to do so (more info) thus keeping the required parts of the template.

I modified your project accordingly to these suggestions. Take a look at it and let me know if it works for you. You can also take a look at the other project, since it illustrates a different approach towards similar scenario.

I hope this helps. Let me know if I can further assist you.

Greetings,
Tina Stancheva
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Ryan Black
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answered on 25 Aug 2010, 02:27 PM
There seems to be something that I am still missing.  Your example works perfect, but the MultipleLevelObject is still having a few line problems.

I added 
IsLineEnabled="True"
IsRootLinesEnabled="False" to the control to visually see the grid lines.  You can see the problems here

Thanks for all your help in this.

Ryan
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Tina Stancheva
Telerik team
answered on 31 Aug 2010, 12:17 PM
Hello Ryan Black,

First of all, I'd like to apologize for the delayed response. I went through your code again and I noticed that in the ControlTemplates of the RadTreeViewItems the IndentFirstVerticalLine element has no width set. this is causing the strange behavior of the lines. I modified the corresponding lines like so:
<Rectangle x:Name="IndentFirstVerticalLine" Width="1" VerticalAlignment="Top" Visibility="Collapsed"/>

This fixes the issue. Can you give it a try and let us know if it works for you or if you need more info? Thank you in advance.

Best wishes,
Tina Stancheva
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Ryan Black
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answered on 31 Aug 2010, 01:21 PM
That fixed it!  Thanks so much for your help in this issue.
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Peter
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answered on 09 Aug 2016, 03:42 AM

Hi Tina,

Sorry to ask for your help in this "UI for WPF" forum,my question is how to hide the RadTreeView's control outer border(gray color)?

Thanks,

Peter

0
Martin Ivanov
Telerik team
answered on 09 Aug 2016, 09:00 PM
Hello Peter,

In order to hide the border of RadTreeView you can set its BorderBrush property to 0.

Regards,
Martin
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