Question

I have a custom textblock that has various text properties for left, right and same text as dependency properties. I use “Run” for making them have different foreground colors. It was like this in a method inside the control:

Inlines.Add(new Run(_leftValue[i]) { Foreground = Brushes.Red });

I added a dependency property for brush. How can I set it in my custom control’s cs file?

Thanks in advance

Answer 1

You have given us precious little to go on, but I’ll give you an answer anyway. The format for setting a dependency proeprty is this:

[instance of the dependency object].SetValue(YourDependencyObject.TheDependencyProperty, value);

so for the example of a DP taking a brush, this should so it:

this.SetValue(MyCustomControl.ForegroundBrush, Brushes.Red);

Note that MyCustomControl is the literal name of your type, and this should be castable to a DependencyObject (if your control derives from Window, Control, FrameworkElement, etc. then it derives from DependencyObject).