Dismiss Keyboard from a Control in Windows Phone 8.1 - ClassExtensions

ControlExtensions.cs

using System;
using System.Collections.Generic;
using System.Text;
using Windows.UI.Xaml.Controls;

namespace OTV.UI.Controls
{
    /// <summary>
    /// A Class Extensions that allows to dismiss the Keyboard from a Control.
    /// Include the "OTV.UI.Controls" namespace in your class and then call the "LoseFocus" method : 
    /// yourControl.LoseFocus();
    /// </summary>
    public static class ControlExtensions
    {

        public static void LoseFocus(this Control control)
        {
            var isTabStop = control.IsTabStop;
            control.IsTabStop = false;
            control.IsEnabled = false;
            control.IsEnabled = true;
            control.IsTabStop = isTabStop;
        }

    }
}

A Class Extensions that allows to dismiss the Keyboard from a Control.

Include the "OTV.UI.Controls" namespace in your class and then call the "LoseFocus" method the following way :
yourControl.LoseFocus();