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How can I get my custom node to size automatically (Read 2999 times)

cds YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 10 Joined: Apr 7^th, 2010	How can I get my custom node to size automatically Apr 21^st, 2010 at 3:23am	Print Post
	I am adding custom nodes to my diagram following the tutorial. My custom node is a control with a control template defined in generic.xaml which includeds a TextBlock for some text. How can I measure the required size with the text set on the TextBlock and then set the node's bounds according to the width that the TextBlock requires? Thanks, Craig


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: How can I get my custom node to size automatic Reply #1 - Apr 21^st, 2010 at 8:17am	Print Post
	Hi, The ShapeNode.ResizeToFitText method uses a temporary TextBlock to measure the text size: Code var textBlock = new TextBlock { Text = Text, TextWrapping = TextWrapping.Wrap, Width = double.NaN, Height = double.NaN, FontFamily = FontFamily, FontSize = FontSize }; textBlock.UpdateLayout(); Size desiredSize = new Size( textBlock.ActualWidth + TextMargin.Left + TextMargin.Right + StrokeThickness * 2, textBlock.ActualHeight + TextMargin.Top + TextMargin.Bottom + StrokeThickness * 2); You can do something similar for your nodes, and also add the size of any additional elements in their template to desiredSize. I hope that helps, Stoyan


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cds YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 10 Joined: Apr 7^th, 2010	Re: How can I get my custom node to size automatic Reply #2 - Apr 21^st, 2010 at 9:20am	Print Post
	Thanks Stoyan That works nicely. I had something similar but was missing a couple of vital details. Craig


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