xamarin forms: binding HorizontalTextAlignment XAML property to viewmodel property

Question

I'm learning xamarin forms and binding. I would like to bind the HorizontalTextAlignment xaml property to the viewmodel property MessagePosition:

<Label Text="{Binding Message}" HorizontalTextAlignment="{Binding MessagePosition}"   />

where MessagePosition has a value of "Start" or "End". Unfortunately, it does not seem to work.

Explicitly setting:

<Label Text="{Binding Message}" HorizontalTextAlignment="Start"   />

or

<Label Text="{Binding Message}" HorizontalTextAlignment="End"   />

does work. The Text binding on the viewmodel property Message works as well. Sorry if duplicate question...thanks for your time.

what is the type pf MessagePosition property? I think it should be of type TextAlignment or something — MohamedHamza
What does your ViewModel look like? And why isn't it working? Nothing happens or you get an error? — Gerald Versluis

Rohit Vipin Mathews Rohit Vipin Mathews · Accepted Answer · 2016-09-11T14:55:15

You should set the Alignment to a value of TextAlignment.

XAML :

<Label Text="{Binding Message}" HorizontalTextAlignment="{Binding HPos}" />

ViewModel :

private TextAlignment _hPos;
public TextAlignment HPos 
{ 
   get { return _hPos; } 
   set 
   { 
      _hPos = value; 
      OnPropertyChanged(); 
   }
}

xamarin forms: binding HorizontalTextAlignment XAML property to viewmodel property

1 Answers