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POCan I remove a ChildWindow from the VisualTree and put it back in to achieve FullScreen?
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  1. POCan I remove a ChildWindow from the VisualTree and put it back in to achieve FullScreen?
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    copied!<p>I have a popup that is a ChildWindow. Inside that popup I have a UserControl (MediaPreviewView) that has a MediaElement and some buttons to control the video. My requirements state that I need a fullscreen button and show the video fullscreen when the user clicks on the button. </p> <p>I'm using MVVM, so I decided to try this with Messaging in the MVVM Light. I'm sending a message to my base View. Inside that View's codebehind, I'm showing a Grid (hidden and at the bottom of the XAML, with a high zindex). My message contains the MediaPreviewControl and I'm setting the Grid.Children.Add( to the control. I've tried multiple things, and can get the ChildWindow to be invisible, but the buttons don't work. It seems that the ChildWindow is still on top of the buttons, even though the width and height was 0. Is there a <del>better</del> a workable approach to making my MediaPreviewView fullscreen?</p> <pre><code>public class MediaPreviewFullScreenMessage { public MediaPreviewView PreviewView { get; set; } public ChildWindow ContainerChildWindow { get; set; } public bool ChangeToFullScreen { get; set; } } // Register for FullScreen media preview Messenger.Default.Register&lt;MediaPreviewFullScreenMessage&gt;(this, (fullScreenMessage) =&gt; { this.fullScreenHolderGrid.Visibility = fullScreenMessage.ChangeToFullScreen ? Visibility.Visible : Visibility.Collapsed; this.fullScreenHolderGrid.Children.Clear(); if (fullScreenMessage.ChangeToFullScreen) { // I've tried, Visibility, width and height = 0 on the fullScreenMessage.ContainerChildWindow, even a TranslateTransform .... } }); </code></pre>
 

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