HorizontalScrollBar position

[Zlatko]

Ohhhhh :(

See the differences:

<telerik:RadWatermarkTextBox 
VerticalContentAlignment="Top"                                        
HorizontalScrollBarVisibility="Auto"                                        
VerticalScrollBarVisibility="Auto"                                        
IsReadOnly="True"                                        
Text="{Binding Text, Mode=OneWay}"/>

and

 

<TextBox 
VerticalContentAlignment="Top"                                        
HorizontalScrollBarVisibility="Auto"                                        
VerticalScrollBarVisibility="Auto"                                        
IsReadOnly="True"                                        
Text="{Binding Text, Mode=OneWay}"/>

[Andrew]

This was really getting to me as well (but with the vertical scrollbars not locking to the edge of the RadWatermarkTextBox when HorizontalContentAlignment was not stretched).  I only had this issue with the Expression_Dark theme as it didn't appear to be a problem with others.

 

If anyone's wondering how to fix it, just edit the template or a copy of the RadWatermarkTextBox template and edit the ScrollViewer within the ControlTemplate.  Change the ScrollViewer's HorizontalAlignment and VerticalContentAlignment to "Stretch" instead of the original TemplateBinding to HorizontalContentAlignment and VerticalContentAlignment properties of the control.