Robert Oschler Robert Oschler - 1 year ago 106
C# Question

Getting a parameter is incorrect error with TextWrapping property set to WrapWholeWords?

In my C#/WinRT app (Windows Store app) I have a TextBox. I can set it's TextWrapping property to Wrap or NoWrap and it works. But if I try to use the value of "WrapWholeWords" I get a design time error with the property value highlighted. When I mouse over the error I get the error message "the parameter is incorrect" with the error code E_RUNTIME_SETVALUE. Can anyone tell me why this is happening and how to fix it if I can?

<TextBox x:Name="txtNotes" Grid.Column="2" TextWrapping="WrapWholeWords" Text="TextBlock" Margin="30" FontSize="20"/>

The TextBox is hosted on a grid control if that matters. Note, the WrapWholeWords value is offered by Intellisense from the XAML editor and from the Property Editor pane in the IDE.

Jon Jon
Answer Source

Its not allowed.

TextBox and RichEditBox don't support the WrapWholeWords value for their TextWrapping properties. If you try to use WrapWholeWords as a value for TextBox.TextWrapping or RichEditBox.TextWrapping an invalid argument exception is thrown.

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