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How can I retain the custom position of the label while resizing the node?

 

We can retain the labels offset value using the SizeChanged event. While resizing a node the SizeEvent gets fired. Using the event we can retain the labels position.

C#

// Adding Event Handler

((DocumentEventSink)diagram1.Model.EventSink).SizeChanged += new SizeChangedEventHandler(Form1_SizeChanged);

outerRect.Labels.Add(new Syncfusion.Windows.Forms.Diagram.Label());

outerRect.Labels[0].Text = "Rectangle";

outerRect.Labels[0].Position = Position.Custom;

outerRect.Labels[0].OffsetX = outerRect.Size.Width / 2;

outerRect.Labels[0].OffsetY = outerRect.Size.Height;

// Resizing

void Form1_SizeChanged(SizeChangedEventArgs evtArgs)

{

outerRect.Labels[0].OffsetX = outerRect.Size.Width / 2;

outerRect.Labels[0].OffsetY = outerRect.Size.Height;

}

VB

'' Adding Event Handler

AddHandler (CType(diagram1.Model.EventSink, DocumentEventSink)).SizeChanged, AddressOf Form1_SizeChanged

 outerRect.Labels.Add(New Syncfusion.Windows.Forms.Diagram.Label())

outerRect.Labels(0).Text = "Rectangle"

outerRect.Labels(0).Position = Position.Custom

outerRect.Labels(0).OffsetX = outerRect.Size.Width / 2

outerRect.Labels(0).OffsetY = outerRect.Size.Height

 '' Resizing

Private Sub Form1_SizeChanged(ByVal evtArgs As SizeChangedEventArgs)

outerRect.Labels(0).OffsetX = outerRect.Size.Width / 2

outerRect.Labels(0).OffsetY = outerRect.Size.Height

End Sub

Please refer the sample in the below link which illustrates the above: http://websamples.syncfusion.com//samples/KB/Diagram.Windows/70249_Resize/main.htm

Article ID: Published Date: Last Revised Date: Platform: Control:
240 04/30/2011 07/10/2014 Windows Forms Diagram
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