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Resizing
Updated over 6 months ago
RadDiagram gives you the ability to resize shapes by dragging their Resizing Thumbs. You can also use the shapes' Width and Height for this purpose.
Enable/Disable resizing
By default, the RadDiagram is enabled for resizing manipulation. In order to disable this functionality, you can set the IsResizingEnabled property to false.

C#
this.radDiagram1.IsResizingEnabled = false;
Manipulation adorner
The IsManipulationAdornerVisible property controls whether the manipulation adorner will be displayed or not.
Width and Height
You can resize shapes by using their Width and Height properties:

C#
RadDiagramShape resizedShape = new RadDiagramShape()
{
Text = "",
ElementShape = new RoundRectShape(5),
BackColor = System.Drawing.Color.LightBlue
};
resizedShape.Width = 300;
resizedShape.Height = 100;
resizedShape.Position = new Telerik.Windows.Diagrams.Core.Point(10, 10);
radDiagram1.Items.Add(resizedShape);