I'm trying to use a converter to set the foreground color for text in the grid.  The reason I'm doing this is to overcome a problem with using a Style to set the color, it's not working reliably.

I have this code to call the converter:

                        <MultiBinding Converter="{StaticResource setColor}">
                            <MultiBinding.Bindings>
                                <Binding ElementName="FieldName" Path="Categories" />
                                <Binding ElementName="Content" Path="Value" />
                            </MultiBinding.Bindings>
                        </MultiBinding>

 

but I'm not sure where to "put" it... I tried it inside a Style for the DataCell but get a runtime error that multibindings aren't supported in Styles.

Any ideas? Thanks!

BTW here's the resource definition (inside Window.Resources):

        <local:cvtColor x:Key="setColor" />

and the converter:

    public class cvtColor : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            string colname = (string)(values[0]);
            string text = (string)(values[1]);

            if (colname == "Categories")
            {
                switch (text)
                {
                    case "blacktext": return Brushes.Black;
                    case "greentext": return Brushes.Green;
                    case "yellowtext": return Brushes.Yellow;
                    case "orangetext": return Brushes.Orange;
                }
            }
            return Brushes.Black;
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotSupportedException("Not supported");
        }
    } 
 

Try something like this:

<local:CountryToColorConverter x:Key="countryToColorConverter"/>

<Style TargetType="{x:Type xcdg:DataCell}">
  <Setter Property="Foreground"
          Value="{Binding Converter={StaticResource countryToColorConverter}}"/>           
</Style>

  public class CountryToColorConverter : IValueConverter
  {
    public object Convert( object value, Type targetType, object parameter, System.Globalization.CultureInfo culture )
    {
      if( value == null )
        return Brushes.Black;

      System.Data.DataRow row = value as System.Data.DataRow;

      if( row != null )
      {
        if( ( string )row[ "ShipCountry" ] == "Canada" )
        {
          return Brushes.HotPink;
        }

        if( ( string )row[ "ShipCountry" ] == "Brazil" )
        {
          return Brushes.Green;
        }
      }

      return Brushes.Black;
    }

    public object ConvertBack( object value, Type targetType, object parameter, System.Globalization.CultureInfo culture )
    {
      return Binding.DoNothing;
    }
  }

---

Technical Writer - Xceed Software

Of all the things I've lost, I miss my mind the most. - Mark Twain

and it works.

Using a converter instead of a bunch of datatriggers solved the problem I was having of styles not being applied consistently...