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POHow to find UserControl width in WPF?
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  1. POHow to find UserControl width in WPF?
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    copied!<pre><code>&lt;UserControl x:Class="JIMS.View.Settings.Settings" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Name="SettingsWindow"&gt; &lt;Border Style="{StaticResource WindowBorderStyle}" Height="100"&gt; &lt;StackPanel Orientation="Vertical"&gt; &lt;my:TitleBar Title="settings"/&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;StackPanel Orientation="Vertical" Margin="10,0,0,0"&gt; &lt;Label&gt;Theme :&lt;/Label&gt; &lt;/StackPanel&gt; &lt;StackPanel Orientation="Vertical" Width="200" Margin="0,0,10,0"&gt; &lt;ComboBox Name="cmbTheme" ItemsSource="{Binding Path=Themes}" &gt;&lt;/ComboBox&gt; &lt;/StackPanel&gt; &lt;/StackPanel&gt; &lt;/StackPanel&gt; &lt;/StackPanel&gt; &lt;/Border&gt; &lt;/UserControl&gt; </code></pre> <p>This is my UserControl and i have not set its Width and Height properties. But in some codebehind i want to get the Height and width of this UserControl and i am not able to get them.</p> <pre><code>double width=uctrl.Width; </code></pre> <p>It gives me <code>NaN</code> while </p> <pre><code>double width=ctrl.ActualWidth; </code></pre> <p>giving me <code>0</code></p> <p>The code where i need width and height</p> <pre><code>private void OpenChild(UserControl ctrl) { bool alreadyExist = false; ctrl.Uid = ctrl.Name; foreach (UIElement child in JIMSCanvas.Children) { if (child.Uid == ctrl.Uid) { alreadyExist = true; Canvas.SetZIndex(child, GetMaxZIndex); } } if (!alreadyExist) { JIMSCanvas.Children.Add(ctrl); JIMSCanvas.InvalidateMeasure(); double top = (JIMSCanvas.ActualHeight - ctrl.Height) / 2; double left = (JIMSCanvas.ActualWidth - ctrl.Width) / 2; Canvas.SetLeft(ctrl, left); Canvas.SetTop(ctrl, top); } } </code></pre>
 

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