Build Your Own DataGrid for Silverlight: Step 2

// Copyright 2008-2009 NETiKA TECH.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Windows;
using System.Windows.Controls;

namespace Open.Windows.Controls
{
    /// <summary>
    /// The HandyTextBox control inherits from the Silverlight TextBox. It adds HandyStyle features to it. 
    /// </summary>
    public class HandyTextBox: TextBox
    {
        public static readonly DependencyProperty HandyStyleProperty;

        static HandyTextBox()
        {
            HandyStyleProperty = DependencyProperty.Register("HandyStyle", typeof(HandyTextBoxStyle), typeof(HandyTextBox), null);
        }

        public HandyTextBox()
        {
            DefaultStyleKey = typeof(HandyTextBox);
            this.LayoutUpdated += new EventHandler(HandyTextBox_LayoutUpdated);
        }

        private void HandyTextBox_LayoutUpdated(object sender, EventArgs e)
        {
            if (!handyStyleApplied)
            {
                this.ApplyHandyStyle();
            }
        }

        /// <summary>
        /// The Style to apply to the control  
        /// </summary>
        public HandyTextBoxStyle HandyStyle
        {
            get
            {
                return (HandyTextBoxStyle)this.GetValue(HandyStyleProperty);
            }
            set
            {
                base.SetValue(HandyStyleProperty, value);
            }
        }


        private bool handyStyleApplied;
        private void ApplyHandyStyle()
        {
            Style style = ResourceHelper.FindResource(Enum.GetName(typeof(HandyTextBoxStyle), HandyStyle)) as Style;
            if (style != null)
            {
                if (this.Style == null)
                {
                    this.Style = style;
                    handyStyleApplied = true;
                }
            }
        }
    }
}