Getting text color from Silverlight RichTextBox

I have a problem with the getting 开发者_开发知识库the RichTextBox`s text color. There is a method about it but i was fail with it. help me to use this method or is there any way to do this. Here is the method

run.Foreground(DependencyProperty)

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I'm not sure what that method is supposed to do, but in XAML you would use:

<RichTextBox Name="MyBox" Text="Some text" Foreground="Red" />

or you could bind it to a Brush property:

<RichTextBox Name="MyBox" Text="Some text" Foreground="{Binding myColor}" />

If you're trying to set it from code behind:

Brush myBrush = new SolidColorBrush(Color.Red);
MyBox.Foreground = myBrush;

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I just find the answer of my question

((System.Windows.Media.SolidColorBrush)(run.Foreground)).Color.ToString()

with above code i can get the color of the text in hex.