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POC# Strange WPF Combobox Behavior
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  1. POC# Strange WPF Combobox Behavior
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    copied!<p>I have simple window. This is what happens when I click ComboBox: <img src="https://i.stack.imgur.com/uCoMw.jpg" alt="Screenshot"> List appears in upper left corner of screen instead of under Combobox.</p> <p>XAML:</p> <pre><code>&lt;Window x:Class="WpfPortOfTestingCamera.VideoSettings" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Video Settings" WindowStartupLocation="CenterOwner" ResizeMode="NoResize" ShowInTaskbar="False" mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" SizeToContent="WidthAndHeight" d:DesignHeight="167"&gt; &lt;StackPanel Name="stackPanel1" VerticalAlignment="Top" HorizontalAlignment="Center"&gt; &lt;GroupBox Header="Settings" Name="groupBox1"&gt; &lt;Grid Name="grid1" VerticalAlignment="Center" HorizontalAlignment="Center"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="80*" /&gt; &lt;ColumnDefinition Width="175*" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition /&gt; &lt;RowDefinition /&gt; &lt;/Grid.RowDefinitions&gt; &lt;Label Content="Resolution:" Height="28" Name="label1" Margin="0" HorizontalAlignment="Left" VerticalAlignment="Center" /&gt; &lt;Label Content="Framerate:" Height="28" HorizontalAlignment="Left" Margin="0" Name="label2" VerticalAlignment="Center" Grid.Row="1" /&gt; &lt;ComboBox Grid.Column="1" Height="23" HorizontalAlignment="Left" Margin="0" Name="comboBox1" VerticalAlignment="Center" Width="150" SelectionChanged="comboBox1_SelectionChanged" /&gt; &lt;ComboBox Height="23" HorizontalAlignment="Left" Margin="0" Name="comboBox2" VerticalAlignment="Center" Width="150" Grid.Column="1" Grid.Row="1" SelectionChanged="comboBox2_SelectionChanged" /&gt; &lt;/Grid&gt; &lt;/GroupBox&gt; &lt;Label Name="labelSelectedSize" Content="Size @ FPS" /&gt; &lt;Button Name="button1" Content="Apply" Click="button1_Click" /&gt; &lt;/StackPanel&gt; &lt;/Window&gt; </code></pre>
 

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