Does StringFormat feature of WPF Xaml work on Label.Content?
StringFormat works on properties of type string (when the object you are binding to is being converted to a string the string format is applied). The Content property is of type Object.
You can place a TextBlock inside your label to achieve the desired effect:
<Label Grid.Column="2" Height="23" HorizontalAlignment="Left" Margin="100,10,0,0" Name="tb" VerticalAlignment="Bottom" Width="120"> <TextBlock Text="{Binding Path=Amount, StringFormat={}{0:C}}"/></Label>
Try ContentStringFormat
http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/866f7934-8b10-4872-b306-122674fad5fa/
<Label Content=”{Binding Amount}” ContentStringFormat=”C” />