StatusTextBlock.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace CommandoDash
{
    /// <summary>
    /// Follow steps 1a or 1b and then 2 to use this custom control in a XAML file.
    ///
    /// Step 1a) Using this custom control in a XAML file that exists in the current project.
    /// Add this XmlNamespace attribute to the root element of the markup file where it is 
    /// to be used:
    ///
    ///     xmlns:MyNamespace="clr-namespace:CommandoDash"
    ///
    ///
    /// Step 1b) Using this custom control in a XAML file that exists in a different project.
    /// Add this XmlNamespace attribute to the root element of the markup file where it is 
    /// to be used:
    ///
    ///     xmlns:MyNamespace="clr-namespace:CommandoDash;assembly=CommandoDash"
    ///
    /// You will also need to add a project reference from the project where the XAML file lives
    /// to this project and Rebuild to avoid compilation errors:
    ///
    ///     Right click on the target project in the Solution Explorer and
    ///     "Add Reference"->"Projects"->[Browse to and select this project]
    ///
    ///
    /// Step 2)
    /// Go ahead and use your control in the XAML file.
    ///
    ///     <MyNamespace:CustomControl1/>
    ///
    /// </summary>
    public class StatusTextBlock : TextBox
    {

        //IsActive Property
        public static readonly DependencyProperty IsActiveProperty = DependencyProperty.Register(
           "IsActive", typeof(bool),
           typeof(TextBox)
        );

        public bool IsActive
        {
            get { return (bool)GetValue(IsActiveProperty); }
            set { SetValue(IsActiveProperty, value); }
        }

        //ActiveBrush Property
        public static readonly DependencyProperty ActiveBrushProperty = DependencyProperty.Register(
            "ActiveBrush", typeof(Brush),
            typeof(TextBox)
        );

        public Brush ActiveBrush
        {
            get { return (Brush)GetValue(ActiveBrushProperty); }
            set { SetValue(ActiveBrushProperty, value); }
        }

        //InactiveBrush Property
        public static readonly DependencyProperty InactiveBrushProperty = DependencyProperty.Register(
            "InactiveBrush", typeof(Brush),
            typeof(TextBox)
        );

        public Brush InactiveBrush
        {
            get { return (Brush)GetValue(InactiveBrushProperty); }
            set { SetValue(InactiveBrushProperty, value); }
        }
    }
}