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PODragging a Rectangle which is inside a Grid
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  1. PODragging a Rectangle which is inside a Grid
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    copied!<p>I managed to sort my "draggable inside grid" issue, however I found another issue.</p> <p>When I start dragging the Rectangle, it dissapears and reappears on mouseup.</p> <p>My code:</p> <pre><code>public Page() { InitializeComponent(); dragGrid.AddHandler(RadDragAndDropManager.DragQueryEvent, new EventHandler&lt;DragDropQueryEventArgs&gt;(OnDragQuery)); dragGrid.AddHandler(RadDragAndDropManager.DropQueryEvent, new EventHandler&lt;DragDropQueryEventArgs&gt;(OnDropQuery)); dragGrid.AddHandler(RadDragAndDropManager.DropInfoEvent, new EventHandler&lt;DragDropEventArgs&gt;(OnDropInfo)); dragGrid.AddHandler(RadDragAndDropManager.DragInfoEvent, new EventHandler&lt;DragDropEventArgs&gt;(OnDragInfo)); Loaded += new RoutedEventHandler(Page_Loaded); } void Page_Loaded(object sender, RoutedEventArgs e) { //Initialise the draggable elements RadDragAndDropManager.SetAllowDrag(onePX, true); RadDragAndDropManager.SetAllowDrag(twoPX, true); RadDragAndDropManager.SetAllowDrag(fourPX, true); } private void OnDragQuery(object sender, DragDropQueryEventArgs e) { if (e.Options.Status == DragStatus.DragQuery) { e.QueryResult = true; //The DragAndDropmanager will detach the element and drag it around the screen. var source = e.Options.Source as Rectangle; source.Visibility = Visibility.Collapsed; e.Options.Payload = source; e.Handled = true; } if (e.Options.Status == DragStatus.DropSourceQuery) { e.QueryResult = true; } } private void OnDropQuery(object sender, DragDropQueryEventArgs e) { if (e.Options.Status == DragStatus.DropDestinationQuery) { e.QueryResult = true; } } private void OnDragInfo(object sender, DragDropEventArgs e) { if (e.Options.Status == DragStatus.DragCancel) { e.Options.Source.Visibility = Visibility.Visible; } } private void OnDropInfo(object sender, DragDropEventArgs e) { if (e.Options.Status == DragStatus.DropComplete) { Grid.SetColumn(e.Options.Source, Grid.GetColumn(e.Options.Destination)); Grid.SetRow(e.Options.Source, Grid.GetRow(e.Options.Destination)); e.Options.Source.Visibility = Visibility.Visible; e.Handled = true; } } </code></pre> <p>XAML:</p> <pre><code>&lt;UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:dragDrop="clr-namespace:Telerik.Windows.Controls.DragDrop;assembly=Telerik.Windows.Controls" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="TestBench.Page" MinHeight="500" MinWidth="300"&gt; &lt;Grid x:Name="LayoutRoot" Background="White"&gt; &lt;Grid x:Name="dragGrid" Margin="0,0,0,58" ShowGridLines="False"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;RowDefinition Height="32" /&gt; &lt;/Grid.RowDefinitions&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;ColumnDefinition Width="32" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="0" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="1" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="2" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="3" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="4" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="5" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="6" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="7" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="8" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="0" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="1" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="2" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="3" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="4" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="5" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="6" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="7" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="8" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="9" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="10" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="11" Grid.Row="9" /&gt; &lt;Rectangle dragDrop:RadDragAndDropManager.AllowDrop="True" Fill="LightBlue" Grid.Column="12" Grid.Row="9" /&gt; &lt;Rectangle Width="32" Height="32" Fill="Black" x:Name="onePX" Grid.Column="0" Grid.Row="0" /&gt; &lt;Rectangle Width="32" Height="64" Fill="Black" x:Name="twoPX" Grid.Column="0" Grid.Row="2" Grid.RowSpan="2" /&gt; &lt;Rectangle Width="64" Height="64" Fill="Black" x:Name="fourPX" Grid.Column="0" Grid.Row="5" Grid.ColumnSpan="2" Grid.RowSpan="2" /&gt; &lt;TextBlock x:Name="textOutput" HorizontalAlignment="Left" Margin="8,8,0,8" Grid.Row="10" Grid.RowSpan="2" TextWrapping="Wrap" Text="TextBlock" d:LayoutOverrides="Height" Grid.ColumnSpan="6" Width="184"/&gt; &lt;/Grid&gt; &lt;/Grid&gt; &lt;/UserControl&gt; </code></pre> <p>Now, I <strong>know</strong> that my code is detaching the Rectangle from the Grid (which is why it's dissapearing), any idea how I can stop this (or an elegant work around would be nice) ^_^</p>
 

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