title: Strange WPF issue
body: <p>I had two wpf forms, and I decided to combine them. I cut and paste one form into another, and then tried to do the same to the code. For some reason, it is saying "xxTextBox Does not exists in the current context" for every item I pasted. The controls and code that was already in place was unaffected. </p>
  
  <p>I'm not sure what I'm missing. Here is the xml all generated by the design mode in VS2013, with all but one of the problem controls removed. </p>
  
  <p><code>&lt;UserControl x:Class="EntryPanels.Ingredients"
               xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
               xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
               xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
               xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
               mc:Ignorable="d" 
               d:DesignHeight="555" d:DesignWidth="925"&gt;
      &lt;Grid Background="#FFBD9D9D"&gt;
            &lt;TextBox Name="TBName" HorizontalAlignment="Left" Height="23" Margin="367,183,0,0"  VerticalAlignment="Top" Width="169"/&gt;
             &lt;/Grid&gt;
  &lt;/UserControl&gt;</code></p>
  
  <p>and a bit of the code: </p>
  
  <p><code>string Name = TBName.Text;</code></p>