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POwhy can't I move a control within a tab in WPF designer?
 

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  1. POwhy can't I move a control within a tab in WPF designer?
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    <p>I have a ComboBox within a tab and I can change its size, skew and rotation with the mouse. However, when I want to move it around, I'm not allowed to. To change the combobox's position, I have to manually enter the coordinates in the margin fields, which is really annoying. Why can't I simply move it by dragging it with the mouse?</p> <p><strong>UPDATE</strong></p> <p>This actually happens only in a second tab. In the first tab I can move around controls like expected. So I cut&amp;pasted the tab part in my xaml file in order to change the tab order. Now, I can move around controls in the first tab (former 2nd tab) whereas I can't move controls in the 2nd tab.</p> <p>Sounds like a WPF designer bug to me...</p> <p><strong>UPDATE 2</strong></p> <p>This is a simple test case. The TestComboBox in the 2nd tab can't be moved.</p> <pre><code>&lt;Window x:Class="MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="718" Width="728" Background="{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}"&gt; &lt;TabControl HorizontalAlignment="Left" VerticalAlignment="Top"&gt; &lt;TabItem Header="TabItem"&gt; &lt;Grid Margin="0,10,0,4" Height="639" Width="708"&gt; &lt;/Grid&gt; &lt;/TabItem&gt; &lt;TabItem Header="TabItem" Height="23"&gt; &lt;Grid Margin="0,10,0,4" Height="639" Width="708"&gt; &lt;ComboBox x:Name="TestComboBox" HorizontalAlignment="Left" Margin="84,10,0,0" Width="217" VerticalAlignment="Top" Height="22"/&gt; &lt;/Grid&gt; &lt;/TabItem&gt; &lt;/TabControl&gt; &lt;/Window&gt; </code></pre> <p>After changing the tab order, TestComboBox can be moved:</p> <pre><code>&lt;Window x:Class="MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="718" Width="728" Background="{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}"&gt; &lt;TabControl HorizontalAlignment="Left" VerticalAlignment="Top"&gt; &lt;TabItem Header="TabItem" Height="23"&gt; &lt;Grid Margin="0,10,0,4" Height="639" Width="708"&gt; &lt;ComboBox x:Name="TestComboBox" HorizontalAlignment="Left" Margin="84,10,0,0" Width="217" VerticalAlignment="Top" Height="22"/&gt; &lt;/Grid&gt; &lt;/TabItem&gt; &lt;TabItem Header="TabItem"&gt; &lt;Grid Margin="0,10,0,4" Height="639" Width="708"&gt; &lt;/Grid&gt; &lt;/TabItem&gt; &lt;/TabControl&gt; &lt;/Window&gt; </code></pre>
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    1. COWorks fine for me. Show the xaml code you've got that shows this problem if you can.
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      1. USViv
 

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