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Asked: 2026-05-22T02:35:23+00:00

I am new to WPF. A Problem I am trying to solve is how

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I am new to WPF. A Problem I am trying to solve is how I can get a correct height at runtime.

In my Application I dynamically add Usercontrols to a Stackpanel in the Code behind. The Usercontrol contains a few Texblocks. My Stackpanel is then used as Content for a BookPage and this BookPage is added to a Book(http://wpfbookcontrol.codeplex.com/). The Height of my Stackpanel should not exceed a certain value.

I already figured out that I can use Measure & Arrange to calculate the ActualSize & Height of the Usercontrol:

itemsa.Measure(new System.Windows.Size(double.PositiveInfinity,     double.PositiveInfinity));
itemsa.Arrange(new Rect(0, 0, 400, itemsa.DesiredSize.Height));

At this point the Usercontrol isn’t added to the Stackpanel. 400 is the Width my usercontrol shouldn’t exceed, but it does, because the Textblock dosn’t create automatic linebreaks. When I display the Book the linebreaks are created.

What should I do to solve this Problem?

Thanks in advance.

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1 Answer

  1. Editorial Team

    Not sure if you’re looking for this, but with the MaxHeight property you have the possibility to restrict the growing of a control.

    In general, it’s not necessary to override Measure and Arrange, the Layout-System is very powerfull and it offers you many container-controls that provide specific layout behaviour.

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