Im writing a WPF application where usercontrols are added to a TabControl at runtime - creating a tab for each user control. The problem then is...these controls can have different width and height which means the tabcontrol must adjust its own width and height accordingly. I tought this would be a simple exercise of just accessing the usercontrols Height/ActualHeight properties, but these are NaN/0.0 Is it not possible to get this information?
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But what for TabControl has to adjust its own size? Could you explain? – Artiom Aug 15 '12 at 11:35
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if the tab control is 300x300 and i add a new tabitem to it that is 400x400, some of it is not shown, therefor i have to check if the tabcontrol needs resizing after each control is added – cht Aug 15 '12 at 12:09
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I would avoid to change the TabControl's size. It would scare me being an user. Instead I would recommend to place controls in the **ScrollViewer**. Is it suitable for you? – Artiom Aug 15 '12 at 12:15
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No a ScrollViewer is not an option - the control must scale to largest added control so it is fully viewable – cht Aug 15 '12 at 12:19
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I can propose next solution:
When you add a new control to the TabControl (is it a TabControl or a TabItem?) set bindings for the Width and Height properties. Create a converter to convert sizes of added controls to the size of Owner (in case if you need to have minimum size).
ActualWidth and ActualHeight properties perhaps are 0 because control wasn't measured yet. Look this thread
