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Normal Topic Diagram border (Read 1608 times)
Bertrand
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Diagram border
Jul 17th, 2018 at 2:53pm
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Hi,

I want to know if it is possible to show the border of the diagram (the drawing part only).
I want something like when I press the ALT key (maybe it changes the focus and with this action we can see a border like in the bitmap that I add in attachment).

Best regards,
Bertrand
  
DiagBorder.png ( 20 KB | 103 Downloads )
DiagBorder.png
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Slavcho
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Re: Diagram border
Reply #1 - Jul 18th, 2018 at 8:35am
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Hi,

One way's through DrawForeground event handler -

Code
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bool drawBorder = true;
void diagram_DrawForeground(object sender, DiagramEventArgs e)
{
	if (drawBorder)
	{
		e.Graphics.DrawRectangle(null,
			new System.Windows.Media.Pen
			{
				Brush = Brushes.Black,
				DashStyle = DashStyles.Dot
			},
			diagram.Bounds);
	}
}


and call diagram.InvalidateForeground() when you toggle the flag. Other options could be drawing the border as a diagram.LaneGrid with a single cell, or by showing the diagram inside WPF Border element.

Regards,
Slavcho
  
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Bertrand
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Re: Diagram border
Reply #2 - Jul 25th, 2018 at 12:57pm
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Thank you !
  
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