The loading time is very slow when there are 100 connections and the connection bridge is set to Bow

Use attached to reproduce. 

 

To reproduce: add a RadDiagram and use the following code snippet:

this.radDiagram1.PanToPosition(new Telerik.Windows.Diagrams.Core.Point(10,10));

Workaround: subscribe to the Pan event: 

this.radDiagram1.Pan += radDiagram1_Pan;

        void radDiagram1_Pan(object sender, Telerik.WinControls.UI.Diagrams.PositionChangedRoutedEventArgs e)
        {
        }

To reproduce: create a RadDiagram with several shapes. Try to zoom and pan with the gesture. Sometimes the shapes jumps.

To reproduce: run the attached sample project and follow the steps in the gif file.
When you start dragging, (i.e. when MouseMove first fires) there is a large jump to the position of the image.

Please refer to the attached gif file illustrating how to reproduce the problem.

Workaround: use the following approach for exporting to an image:

private void radButton1_Click(object sender, EventArgs e)
{
    RadScrollBarElement horizontalScrollBar = this.radDiagram1.DiagramElement.Children[1] as RadScrollBarElement;
    RadScrollBarElement verticalScrollBar = this.radDiagram1.DiagramElement.Children[2] as RadScrollBarElement;

    
    this.Size = new System.Drawing.Size(this.Size.Width + (horizontalScrollBar.Maximum - this.radDiagram1.Size.Width),
        this.Size.Height + (verticalScrollBar.Maximum + 1 - this.radDiagram1.Height));
    Application.DoEvents();
    Bitmap bmp = new Bitmap(radDiagram1.Width, radDiagram1.Height, PixelFormat.Format32bppArgb);
   
    this.radDiagram1.DrawToBitmap(bmp, new Rectangle(0, 0, radDiagram1.Width, radDiagram1.Height));
  
    bmp.Save(@"..\..\test2.bmp");
    System.Diagnostics.Process.Start(@"..\..\test2.bmp");
}

To reproduce:
- Zoom the diagram and drop an item from the toolbox. 

Workaround:
Friend Class MyToolbox
    Inherits RadDiagramToolbox
  
    Protected Overrides Sub DragDropService_PreviewDragDrop(ByVal sender As Object, ByVal e As RadDropEventArgs)
        'base.DragDropService_PreviewDragDrop(sender, e);
        Dim shape = TryCast(GetType(RadDiagramToolbox).GetField("shape", System.Reflection.BindingFlags.NonPublic Or System.Reflection.BindingFlags.Instance).GetValue(Me), RadDiagramShape)
  
        Dim diagramElement As RadDiagramElement = TryCast(e.HitTarget, RadDiagramElement)
        Dim containerShape As RadDiagramContainerShape = TryCast(e.HitTarget, RadDiagramContainerShape)
        If containerShape IsNot Nothing Then
            diagramElement = containerShape.FindAncestor(Of RadDiagramElement)()
        End If
  
        If diagramElement Is Nothing OrElse diagramElement.Shape IsNot Nothing OrElse shape Is Nothing Then
            Return
        End If
  
        e.Handled = True
        Dim zoom As Double = diagramElement.Zoom
        Dim m As Telerik.WinControls.Layouts.RadMatrix = diagramElement.MainPanel.Transform
        m.Invert()
  
        Dim position = New Telerik.Windows.Diagrams.Core.Point(m.DX + (e.DropLocation.X - shape.Width \ 2) * 1 / zoom, m.DY + (e.DropLocation.Y - shape.Height \ 2) * 1 / zoom)
        If containerShape IsNot Nothing Then
            position.X += containerShape.Position.X
            position.Y += containerShape.Position.Y
        End If
  
        shape.Position = position
        diagramElement.AddShape(shape, Nothing, True)
        If containerShape IsNot Nothing Then
            DirectCast(containerShape, IContainerShape).AddItem(shape)
        End If
  
        shape = Nothing
    End Sub
End Class

Please refer to the attached gif file illustrating better the observed behavior when using the UI to add and connect shapes. 

Hello,

I'm contacting to you regarding the RadDiagram in WinForms. Currently I have an issue with the layout by using the AStartRouter (see attached picture). Please find below the code used to setup the router:

this.diagram.RoutingService.Router = new Telerik.Windows.Diagrams.Core.AStarRouter(this.diagram.DiagramElement) 
{ 
AvoidShapes = true,
WallOptimization = true
};
this.diagram.RoutingService.AutoUpdate = true;
this.diagram.RouteConnections = true;

Thanks for your help.

Regards

To reproduce: 
1. Add a RadDiagram to the form and open its property builder at design time. 
2. Add a RadDiagramShape and set some value to the shape's Tag property.
3. Save the changes and exit the property builder.

When you run the application you will notice that the Tag property of the shape is not stored. 

By default, when you bind RadDiagram, RadDiagramShape items are created by the DiagramDataLayer. It would be nice to have the possibility to replace the DiagramDataLayer for example and override its CreateDiagramShapeItem method to use custom RadDiagramShapes.

Workaround call the InitializeDiagram method in the OnLoad method of the form.

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);
    this.InitializeDiagram();
}

Please refer to the attached sample project. If you drag a new shape or copy/paste an existing one it is not added to the DataSource collection as it is added in RadGanttView for example.

Workaround: handle the ItemsChanged event and add a new record to the DataSource manually.

How to reproduce: 

 public partial class Form1 : Form
 {
     public Form1()
     {
         InitializeComponent();

         RadDiagramShape shape1 = new RadDiagramShape()
         {
             Text = "Second Level Domain",
             ElementShape = new RoundRectShape(4),
             BackColor = Color.LimeGreen
         };
         shape1.Position = new Telerik.Windows.Diagrams.Core.Point(100, 100);
         radDiagram1.Items.Add(shape1);

         var res = radDiagram1.Items[0];
         ((Telerik.WinControls.UI.Diagrams.RadDiagramItem)shape1).EndEdit += item_EndEdit;

         RadDiagramShape shape2 = new RadDiagramShape()
         {
             Text = "Top Level Domain",
             ElementShape = new RoundRectShape(50),
             BackColor = Color.Cyan
         };
         shape2.Position = new Telerik.Windows.Diagrams.Core.Point(1600, 100);

         radDiagram1.Items.Add(shape2);

         RadDiagramShape shape3 = new RadDiagramShape()
         {
             Text = "Organization Domain",
             ElementShape = new RoundRectShape(20),
             BackColor = Color.Yellow
         };
         shape3.Position = new Telerik.Windows.Diagrams.Core.Point(2400, 100);
         radDiagram1.Items.Add(shape3);

         RadDiagramConnection connection1 = new RadDiagramConnection() { Name = "connection1" };
         connection1.Source = shape1;
         connection1.Target = shape2;
         radDiagram1.Items.Add(connection1);

         RadDiagramConnection connection2 = new RadDiagramConnection()
         {
             Name = "connection2"
         };
         connection2.Source = shape2;
         connection2.Target = shape3;
         radDiagram1.Items.Add(connection2);
     }

     private void item_EndEdit(object sender, Telerik.WinControls.UI.Diagrams.RadRoutedEditEventArgs e)
     {
         RadDiagramShape shape = ((RadDiagramShape)sender);
         string txt = shape.Text;
         Size size = TextRenderer.MeasureText(txt, shape.Font, new System.Drawing.Size( (int)shape.Width, int.MaxValue ), ~TextFormatFlags.SingleLine);

         shape.Height = size.Height;
     }

     private void radButton1_Click(object sender, EventArgs e)
     {
         this.radDiagram1.DiagramElement.BringIntoView(radDiagram1.Items[0], this.radDiagram1.Zoom, false);
     }

     private void radButton2_Click(object sender, EventArgs e)
     {
         this.radDiagram1.DiagramElement.BringIntoView(radDiagram1.Items[1], this.radDiagram1.Zoom, false);
     }

     private void radButton3_Click(object sender, EventArgs e)
     {
         this.radDiagram1.DiagramElement.BringIntoView(radDiagram1.Items[2], this.radDiagram1.Zoom, false);
     }
 }

Workaround:  manually update the view
private void radButton1_Click(object sender, EventArgs e)
{
    this.radDiagram1.DiagramElement.BringIntoView(radDiagram1.Items[0], this.radDiagram1.Zoom, false);
    this.radDiagram1.DiagramElement.Controller.OnViewportChanged();
}

private void radButton2_Click(object sender, EventArgs e)
{
    this.radDiagram1.DiagramElement.BringIntoView(radDiagram1.Items[1], this.radDiagram1.Zoom, false);
    this.radDiagram1.DiagramElement.Controller.OnViewportChanged();
}

private void radButton3_Click(object sender, EventArgs e)
{
    this.radDiagram1.DiagramElement.BringIntoView(radDiagram1.Items[2], this.radDiagram1.Zoom, false);
    this.radDiagram1.DiagramElement.Controller.OnViewportChanged();
}

To reproduce:
- Add shape and zoom the view.
- Call the method:
radDiagram1.DiagramElement.BringIntoView(radDiagram1.Shapes[0]);

Workaround:
radDiagram1.DiagramElement.BringIntoView(radDiagram1.Shapes[0],radDiagram1.Zoom, false);          

The user is not allowed to add a shape or edit an existing one by using the TextTool: http://docs.telerik.com/devtools/winforms/diagram/diagram-tools/text-tool

Workaround:

 Me.RadDiagramRibbonBar1.buttonTextTool.Visibility = Telerik.WinControls.ElementVisibility.Collapsed

To reproduce:
- Add some shapes and call the BringToView method
Private Sub RadButton4_Click(sender As Object, e As EventArgs) Handles RadButton4.Click
    Dim ds As RadDiagramShape
    For i As Integer = 0 To Me.RadDiagram1.Shapes.Count - 1
        If i = 2 Then
            ds = DirectCast(RadDiagram1.Shapes(i), RadDiagramShape)
            Me.RadDiagram1.DiagramElement.BringIntoView(ds, 1.0, True)
            Exit For
        End If
    Next
End Sub

Workaround:
Me.RadDiagram1.DiagramElement.BringIntoView(ds, 1.0, False)