Extension method that helps updating binding target.

ControlBindingHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Data;
using System.Windows.Controls;
using System.Windows;

namespace Infrastructure.Extensions
{
    public static class ControlBindingHelper
    {
        public static void UpdateBindingTarget(this DependencyObject ctrl, params DependencyProperty[] args)
        {
            foreach (var dp in args)
            {
                BindingOperations.GetBindingExpression(ctrl, dp).UpdateTarget();
            }
        }
    }
}