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PONested Itemscontrols data binding to the same Grid
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  1. PONested Itemscontrols data binding to the same Grid
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    copied!<p>This may be a dupe, but I couldn't find anything in an hour or so of searching and reading MSDN.</p> <p>I'm making a 2D tile-based game and have an ItemsControl bound to a list of Tiles (C# class). This works great.</p> <pre><code>&lt;ItemsControl ItemsSource="{Binding Tiles}"&gt; &lt;ItemsControl.ItemsPanel&gt; &lt;ItemsPanelTemplate&gt; &lt;UniformGrid Rows="{Binding Board.Rows}" Columns="{Binding Board.Columns}"/&gt; &lt;/ItemsPanelTemplate&gt; &lt;/ItemsControl.ItemsPanel&gt; &lt;ItemsControl.Resources&gt; &lt;DataTemplate DataType="{x:Type local:Tile}"&gt; &lt;Grid x:Name="tileGrid" Background="{Binding TileImage}"/&gt; &lt;/DataTemplate&gt; &lt;/ItemsControl.Resources&gt; &lt;ItemsControl&gt; </code></pre> <p>There's an inner 5x5 Grid for each Tile since I need to be able to place units at various locations on each Tile. Each <code>Tile</code> contains a <code>List&lt;Location&gt;</code> where there is a unit, which I want to place on that Grid.</p> <pre><code>&lt;Grid x:Name="tileGrid" Background="{Binding TileImage}"&gt; &lt;ColumnDefinition snipped - there's 5 columns and 5 rows&gt; &lt;ItemsControl ItemsSource="{Binding Locations}"&gt; &lt;ItemsControl.Resources&gt; &lt;DataTemplate DataType="{x:Type sys:Int32}"&gt; &lt;Image Source="unit.bmp" Grid.Column="{Binding Converter={StaticResource ColumnConverter}}" Grid.Row="{Binding Converter={StaticResource RowConverter}}"/&gt; &lt;/DataTemplate&gt; &lt;/ItemsControl.Resources&gt; &lt;/ItemsControl&gt; </code></pre> <p>Where ColumnConverter and RowConverter just get the column index from a Location.</p> <p>The problem is that I can't bind to tileGrid's Column and Row from inside the ItemsControl. Some people have suggested putting the Grid inside the Locations ItemsControl, but that doesn't work because it needs to be a child of the outer Tiles ItemsControl.</p> <p>What can I do?</p>
 

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