Alex Golesh's Blog About Silverlight Development

   1: public class ColorConverter : IValueConverter

   2: {

   3:  

   4:     #region IValueConverter Members

   5:  

   6:     //[ValueConversion(typeof(SolidColorBrush), typeof(string))]

   7:     public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

   8:     {

   9:         string val = value.ToString();

  10:         val = val.Replace("#", "");

  11:  

  12:         byte a = System.Convert.ToByte("ff", 16);

  13:         byte pos = 0;

  14:         if (val.Length == 8)

  15:         {

  16:             a = System.Convert.ToByte(val.Substring(pos, 2), 16);

  17:             pos = 2;

  18:         }

  19:  

  20:         byte r = System.Convert.ToByte(val.Substring(pos, 2), 16);

  21:         pos += 2;

  22:  

  23:         byte g = System.Convert.ToByte(val.Substring(pos, 2), 16);

  24:         pos += 2;

  25:  

  26:         byte b = System.Convert.ToByte(val.Substring(pos, 2), 16);

  27:  

  28:         Color col = Color.FromArgb(a, r, g, b);

  29:  

  30:         return new SolidColorBrush(col);

  31:     }

  32:  

  33:     public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

  34:     {

  35:         SolidColorBrush val = value as SolidColorBrush;

  36:         return "#" + val.Color.A.ToString() + val.Color.R.ToString() + val.Color.G.ToString() + val.Color.B.ToString();

  37:     }

  38:  

  39:     #endregion

  40: }

   1: <UserControl x:Class="ColorConverter.Page"

   2:     xmlns="http://schemas.microsoft.com/client/2007" 

   3:     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 

   4:     xmlns:local="clr-namespace:ColorConverter"

   5:     Width="400" Height="300">

   6:     

   7:     <UserControl.Resources>

   8:         <local:ColorConverter x:Key="colorConverter"/>

   9:     </UserControl.Resources>

  10:     

  11:     <Grid x:Name="LayoutRoot" Background="White">

  12:         <Border Background="{Binding TextColor, Mode=OneWay, Converter={StaticResource colorConverter}}">

  13:             <TextBlock Text="Colored Test" Foreground="Blue"/>

  14:         </Border>

  15:     </Grid>

  16: </UserControl>

   1: using System;

   2: using System.Collections.Generic;

   3: using System.Linq;

   4: using System.Windows;

   5: using System.Windows.Controls;

   6: using System.Windows.Documents;

   7: using System.Windows.Input;

   8: using System.Windows.Media;

   9: using System.Windows.Media.Animation;

  10: using System.Windows.Shapes;

  11:  

  12: namespace ColorConverter

  13: {

  14:     public partial class Page : UserControl

  15:     {

  16:         public Page()

  17:         {

  18:             InitializeComponent();

  19:  

  20:             TextColor = "#FF00FF13";

  21:             this.DataContext = this;

  22:         }

  23:  

  24:         public string TextColor

  25:         {

  26:             get { return (string)GetValue(TextColorProperty); }

  27:             set { SetValue(TextColorProperty, value); }

  28:         }

  29:  

  30:         // Using a DependencyProperty as the backing store for TextColor.  This enables animation, styling, binding, etc...

  31:         public static readonly DependencyProperty TextColorProperty =

  32:             DependencyProperty.Register("TextColor", typeof(string), typeof(Page), null);

  33:  

  34:     }

  35: }

   1: public partial class Page : UserControl

   2: {

   3:     ColorDetails textColor = new ColorDetails();

   4:  

   5:     public Page()

   6:     {

   7:         InitializeComponent();

   8:  

   9:         textColor.TextColor = "#FF00FF13";

  10:  

  11:         this.DataContext = textColor;

  12:     }

  13: }

  14:  

  15: public class ColorDetails : INotifyPropertyChanged

  16: {

  17:   string str = "";

  18:  

  19:   public string TextColor

  20:   {

  21:     get { return str; }

  22:     set

  23:     {

  24:       str = value;

  25:  

  26:       if (null != PropertyChanged)

  27:         PropertyChanged(this, new PropertyChangedEventArgs("TextColor"));

  28:     }

  29:   }

  30:  

  31:   public event PropertyChangedEventHandler PropertyChanged;

  32: }