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POHow to make scrollviewer work with Height set to Auto in WPF?
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19355818
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2013-10-14T08:02:57.367
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2016-05-25T08:19:56.580
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I have learned that if the height of a grid row, where the <code>ScrollViewer</code> resides, is set as <code>Auto</code>, the vertical scroll bar will not take effect since the actual size of the <code>ScrollViewer</code> can be larger than the height in sight. So in order to make the scroll bar work, I should set the height to either a fixed number or star height However, I now have this requirement, that I have two different views reside in two grid rows, and I have a toggle button to switch between these two views: when one view is shown, the other one is hidden/disappeared. So I have defined two rows, both heights are set as <code>Auto</code>. And I bind the visibility of the view in each row to a boolean property from my ViewModel (one is converted from <code>True</code> to <code>Visible</code> and the other from <code>True</code> to <code>Collapsed</code>. The idea is when one view's visibility is <code>Collapsed</code>, the height of the grid row/view will be changed to 0 automatically. The view show/hidden is working fine. However, in one view I have a <code>ScrollViewer</code>, which as I mentioned doesn't work when the row height is set as <code>Auto</code>. Can anybody tell me how I can fulfill such requirement while still having the <code>ScrollViewer</code> working automatically`? I guess I can set the height in code-behind. But since I am using MVVM, it would require extra communication/notification. Is there a more straightforward way to do that? 
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<wpf><scrollviewer><autosize>
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How to make scrollviewer work with Height set to Auto in WPF?
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