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POGrid Item Not Visible When Margin Set to Display in Bottom Half Grid
 

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    <p>I have a grid with an overlaying separator which I am using as a cursor for the grid. I am programmatically moving the separator on the grid by setting the margin to a percentage of the grid ActualHeight. This works fine until the margin is set to more than (grid.ActualHeight / 2) at which point the separator is no longer visible.</p> <p>I have tried setting the vertical alignment (which is defaulted to Top) to Bottom or Center and changing the location accordingly with similar results.</p> <p>Is there some reason why the grid hides the separator? And how can I ensure the separator is visible?</p> <p>Thanks, Stuart</p> <p>Edit:</p> <p>Here is the XAML for the grid. Borders are added to the grid programmatically, which is why the grid contains the rows and columns.</p> <pre><code> &lt;Grid Name="graph1" Grid.Row="1" Margin="2" MouseLeftButtonDown="MouseDown" Background="#00000000"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition /&gt; &lt;RowDefinition /&gt; &lt;RowDefinition /&gt; &lt;RowDefinition /&gt; &lt;RowDefinition /&gt; &lt;/Grid.RowDefinitions&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition /&gt; &lt;ColumnDefinition /&gt; &lt;ColumnDefinition /&gt; &lt;ColumnDefinition /&gt; &lt;ColumnDefinition /&gt; &lt;ColumnDefinition /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Separator Name="graph1Cursor" Grid.RowSpan="5" Grid.ColumnSpan="6" VerticalAlignment="Top"/&gt; &lt;/Grid&gt; </code></pre> <p>And the code I am using for setting the margin:</p> <pre><code> graph1Cursor.Margin = new Thickness(0, y, 0, y); </code></pre> <p>where y is the height of the cursor location with respect to the ActualHeight of the grid.</p>
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    1. COCan you post your Grid XAML with the separator?
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    2. COI have edited the post to include the XAML as well as how I am programmatically setting the cursor location.
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