title: Empty textbox bound with some decimal value
body: <p>I have a textbox bound to some decimal value. Now, if I type something in it like 100 and clear it completely (empty). I save the data and it saves 1 in decimal value. Similarly if I tried 200 and clear textbox it saves 2. Remember decimal value is not null. Any ideas?</p>
  
  <pre><code>&lt;TextBox 
      Height="23" 
      VerticalAlignment="Center" 
      Text="{Binding Discount,Mode=TwoWay}" 
      MaxLength="50" 
      TabIndex="28" 
      Grid.Row="2" 
      Grid.Column="1" 
      local:FocusExtension.IsFocused=
          "{Binding Path=IsDiscountFocused,Mode=TwoWay}" 
      Margin="5,0,0,0"/&gt;
  </code></pre>