I am trying to create custom Shape and custom ContainerShape.
I have successfully customized Shape.
But I am having a problem with customizing ContainerShape.

Below is code snippet for Model, .xaml and .cs.
When I set targetType of <style> to either Telerik:RadDiagramShape or Telerik:RadDiagramContainerShape, things work fine.
If I set CustomShape to targetType, this also works fine.
But, if I set CustomContainerShape to targetType, an error seems to occur when graphSource.AddNode(node) is excuted and StyleSelector returns Style, with InvalidOperationException error, and program terminates.

In the below code, FlowItemNode is okay. But FlowGroupNode is causing an error.
Even when I am using FlowGroupNode, if I set targetType of <style> to Telerik:RadDiagramContainerShape, it works okay.
 
I want to use CustomContainerShape so that I can implement or customize Drag and Drop(ex: drag entered, on drag, dropped) within CustomContainerShape class.
 
What am I doing wrong and How can I achieve this?

Thanks in advance.

//Selector
Class DiagramShapeSelector : StyleSelector
{
 Public override Style SelectStyle(object item, DependencyObject container)
 {
  If(item is FlowItemNode)
  {
   Return ForShapeStyle
  }
  Else if (item if FlowGroupNode)
  {
   Return ForGroupShapeStyle
  }
 }
}


 Code
//Model for shape
public class FlowItemNode : FlowItemViewModel, IDiagramNode
{
    ......
}
 
//Model for containerShape
Public Class FlowGroupViewModel<DiagramNode> : FlowItemViewModel, IContainerItem
{
}
Public class FlowGroupNode : FlowGroupViewModel<IDiagramNode>, IDiagramNode
{
    ......
}

 xaml
<local:CustomDiagram
ShapeStyleSelector = {StaticResource DiagramShapeSelector}
……
/>
<Style x:Key="ForShapeStyle" TargetType="telerik:RadDiagramContainerShape">
    <Setter Property="Position" Value="{Binding Position, Mode=TwoWay}" />
</Style>
 
<Style x:Key="ForGroupShapeStyle" TargetType="diagram:CustomContainerShape">
    <Setter Property="Position" Value="{Binding Position, Mode=TwoWay}" />
</Style>
 .cs
//Selector
Class DiagramShapeSelector : StyleSelector
{
 Public override Style SelectStyle(object item, DependencyObject container)
 {
  If(item is FlowItemNode)
  {
   Return ForShapeStyle
  }
  Else if (item if FlowGroupNode)
  {
   Return ForGroupShapeStyle
  }
 }
}
// CustomRadDiagram
    public class CustomDiagram : RadDiagram
    {
        protected override bool IsItemItsOwnShapeContainerOverride(object item)
        {
            if (item is FlowItemNode)
            {
                return item is CustomContainerShape;
            }
            else return item is CustomShape;
        }
        protected override Telerik.Windows.Diagrams.Core.IShape GetShapeContainerForItemOverride(object item)
        {
            if (item is FlowItemNode)
            {
                return new CustomContainerShape(this);
            }
            else return new CustomShape(this);
        }
    }
 
// CustomShape
   public class CustomShape : RadDiagramShape
    {
        public CustomShape(CustomDiagram diagram)
        {
        }
    }
 
// CustomContainershape
   public class CustomConnection : RadDiagramConnection
    {
        public CustomConnection(CustomDiagram diagram)
        {
        }
    }

Hello.

Sorry for my "English" :)

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Thanks!

Hi,

We experience some strange behavior in the xaml designer (Visual Studio 2017) when we apply the Fluent theme on the TabControl

When the header of a tabitem is clicked, the designer does not 'switch' to that tab.  This happens randomly (not all of the time) and is pretty annoying.  Only thing to do when this happens is to restart Visual Studio.

The problem does not occur when setting the theme to Office2016.

Regards,
Hans

Hi there,

I would be appreciate your help with this.

Attached a screenshot that shows what I am looking for:

Thanks,

Bahram Afsharipoor

Hello,

I'm trying to use the Office2016 theme colors in one of my controls.

To do this, I've used the following XAML:

Unfortunately, this doesn't work! When I run the application I have the following error: "Cannot find resource named 'BasicBrush'. Resource names are case sensitive."

If I look with the debugger just after the resource dictionary is loaded, I can see the resources defined, including BasicBrush!

If I define myself the brushes, with "<Brush x:Key="AccentBrush">#FF2A579A</Brush>" for example, it works correctly.

Why can't I use the Office2016 resources directly?

Hi All,

I have a big C++ MFC solution, which opens WPF dialogs with Telerik RadCartesianChart.
When the ViewModel is static (singleton) I have memory leak.
Reporting version 10.0.16.204 Q1 2016 SP1

WPF controls version 2016.1.217.45

On the attached MFC project ,When you press the OK Button, the WPF dialog is opened.
On each button pressed, the dialog shows the delta of the memory consumption on top of the dialog.
If the view model is not static or the DataSource is not connected in the XAML I don’t have any memory leaks.
However, if both condition applies the memory leak happens.

link to the solution VS2013

https://drive.google.com/file/d/1U9Bd9ox8c-IKX5lRcFOKdnVlxoSywTbY/view?usp=sharing

Thanks

Ron

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Im using a vdi. Next thought is to try on an actual box. See attachement