Description: WPF MultiBinding with Converter

Link: http://www.codekeep.net/snippets/e1d1225a-a857-452d-9136-27c47980cb5f.aspx

<Rectangle Name="rtColor" Margin="25">

  <Rectangle.Fill>

    <SolidColorBrush>

      <SolidColorBrush.Color>

        <MultiBinding Converter="{StaticResource convertColor}">

          <MultiBinding.Bindings>

            <Binding ElementName="slAlpha" Path="Value" />

            <Binding ElementName="slRed" Path="Value" />

            <Binding ElementName="slGreen" Path="Value" />

            <Binding ElementName="slBlue" Path="Value" />

          </MultiBinding.Bindings>

        </MultiBinding>

      </SolidColorBrush.Color>

    </SolidColorBrush>

  </Rectangle.Fill>

</Rectangle>

<Window.Resources>

  <local:ConvertColor x:Key="convertColor" />

  <ImageBrush x:Key="newtelligencelogo" TileMode="Tile" Viewport="0,0,240,51" ViewportUnits="Absolute" ImageSource= "newtelligencelogo.bmp"/>

</Window.Resources>

public class ConvertColor : IMultiValueConverter

{

    public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)

    {

        float alpha = (float)(double)(values[0]);

        float red = (float)(double)(values[1]);

        float green = (float)(double)(values[2]);

        float blue = (float)(double)(values[3]);

        return Color.FromScRgb(alpha, red, green, blue);

    }

    public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)

    {

        throw new NotSupportedException("Not supported");

    }

}