Question

Here’s the xaml:

<TextBlock Text="{Binding Errors}" Grid.Row="3" Foreground="Red"/>

Here’s the ViewModel code:

  private string _errors = "";
 public string Errors
    {
        get { return this._errors; }
        set
        {
            if(_errors != value)
            {
                _errors = value;
                RaisePropertyChanged(() => Errors);
            }
        }
    }

and then in some function I change the _errors variable

  _errors = "Compiler Errors :\r\n";

But nothing happens in the TextBlock. What am I doing wrong?

Answer 1

You are setting _errors variable directly – so no RaisePropertyChanged fired. Try to set value by

Errors = = "Compiler Errors :\r\n";