How to style Relation Arrow in GanttView

[Premkumar]

Hi Progress Telerik,

I would like to change the look of the Relation Arrow between tasks. Is there any way to style the relation arrow in GanttView? Please provide the solution to achieve the same.

 

Thanks and Regards,

Muhammad Azhar Shah

MSC Technology

[Martin]

Hello,

You can find the style and extract the template for the RelationContainer in the theme you are using. In it you can find an EndArrowHost grid with the paths with different colors which you can change. The foreground of the style should be the one responsible for the color of the line and the normal arrow. However, I strongly advice against changing the margins (Margin, SummaryContainerMargin, MilestoneContainerMargin) as they might break the appearance of the connections. If you want to change only the color, you can create an implicit style for the RelationContainer and change its foreground.

<!-- xmlns:gantt="clr-namespace:Telerik.Windows.Controls.GanttView;assembly=Telerik.Windows.Controls.GanttView" -->
<Style BasedOn="{StaticResource RelationContainerStyle}" TargetType="gantt:RelationContainer">
   <Setter Property="Foreground" Value="your custom brush" />
</Style>

Regards,
Martin
Progress Telerik