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Normal Topic Resizing of Diagram (Read 1370 times)
lutz
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Resizing of Diagram
Sep 14th, 2009 at 7:47am
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Hi,

i am using a grid with several row headers, but only one column header.

How can i solve the problem, that after enlargement of the column header height the whole diagram is moved downwards but the size displayed isn't changing - bottom region is cut off?

I had set the parameter for enlargement in all directions, but that didn't help.

Thanks in advance
Lutz
  
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Meppy
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Re: Resizing of Diagram
Reply #1 - Sep 14th, 2009 at 10:31am
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The Diagram.AutoResize property does not take into consideration the lane grid when determining whether to enlarge the diagram. You have to manually modify the bounding rectangle in response to a change in the lane grid size. The following code illustrates how:

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Rect rowHeader = diagram1.LaneGrid.GetRowHeaderBounds();
Rect columnHeader = diagram1.LaneGrid.GetColumnHeaderBounds();
Rect union = Rect.Union(rowHeader, columnHeader);

Rect diagramBounds = diagram1.Bounds;
if (diagramBounds.Right < union.Right)
      diagramBounds.Width = union.Right - diagramBounds.Left;
if (diagramBounds.Bottom < union.Bottom)
      diagramBounds.Height = union.Bottom - diagramBounds.Top;

diagram1.Bounds = diagramBounds;

The variable diagram1 references the Diagram instance.

Use the code above when the size of the column header changes.

Regards,
Meppy
  
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