LineBreaks in WCF bound textblock

Question

I am pulling data from a previous page which was a selected item in a listbox from a wcf service.

Ther error I am having is that the textblock is not reading the formatting in my in my data.

this is the code that brings the data in from the previous page

private void LoadPlayer()
    {
        FrameworkElement root1 = Application.Current.RootVisual as FrameworkElement;
        var currentPlayer = root1.DataContext as PlayerProfile;
        _SelectedPlayer = currentPlayer;
    }

this is the xaml

<TextBlock Height="Auto" TextWrapping="Wrap" Name="Blurb" Text="{Binding Bio}" xml:space="preserve" />

specifically I am trying to get the \r\n to work in my display as a linebreak.

score 0 · Accepted Answer · edited May 23 '17 at 10:24

See the answer here:

Newline in string attribute

In your case what you need to do write a Converter (something that implements IValueConverter) that turns the string data that contains the \r\n into encoded entities i.e. and . Then just use that converter on your Binding.

public class EncodeCRLFConverter : IValueConverter
{
  public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
  {
    string stringtoconvert = value as string;

    if (input != null))
    {
        // Note there are different ways to do the replacement, this is
        // just a very simplistic method.

        stringtoconvert = stringtoconvert.Replace( "\r", "&#x0d;" );
        stringtoconvert = stringtoconvert.Replace( "\n", "&#x0a;" );

        return stringtoconvert;
    }
    return null;
  }

  public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
  {
    throw new Exception("The method or operation is not implemented.");
  }
}

Create an instance of your converter somewhere...e.g. typically in .Resources....(in this example I've just used Window because I don't know what your TextBlock is inside).

<Window.Resources>
<EncodeCRLFConverter x:Key="strconv"/>
<Window.Resources>

<TextBlock Height="Auto" TextWrapping="Wrap" Name="Blurb" Text="{Binding Bio, Converter={StaticResource strconv}}" />

LineBreaks in WCF bound textblock

1 Answers1