Laedit.WPF.Converters.FileNameToExtensionConverter

DescriptionCode

/*  ----------------------------------------------------------------------------
 *  Laedit.WPF.Converters : Laedit.WPF.Converters
 *  ----------------------------------------------------------------------------
 *  File:       		FileNameToExtensionConverter.cs
 *  Author:     		Jérémie Bertrand
 *  Last modification:	05/09/2010
 *  ----------------------------------------------------------------------------
 *  Copyright 2010 Jérémie Bertrand
 *  Licensed under the Apache License, Version 2.0 (the "License"); 
 *  You may not use this file except in compliance with the License. 
 *  You may obtain a copy of the License at 
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0 
 *  
 *  Unless required by applicable law or agreed to in writing, software 
 *  distributed under the License is distributed on an "AS IS" BASIS, 
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 *  See the License for the specific language governing permissions and 
 *  limitations under the License.
 *  ----------------------------------------------------------------------------
 */

using System;
using System.Windows.Data;

namespace Laedit.WPF.Converters
{
    /// <summary>
    /// Converts a FileName in Extention. i.e: "foo.bar" => ".bar"
    /// </summary>
    [ValueConversion(typeof(string), typeof(string))]
    public class FileNameToExtensionConverter : IValueConverter
    {
        #region IValueConverter Members

/// <summary>
        /// Converts a value.
        /// </summary>
        /// <param name="value">The value produced by the binding source.</param>
        /// <param name="targetType">The type of the binding target property.</param>
        /// <param name="parameter">The converter parameter to use.</param>
        /// <param name="culture">The culture to use in the converter.</param>
        /// <returns>
        /// A converted value. If the method returns null, the valid null value is used.
        /// </returns>
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value is String)
            {
                return System.IO.Path.GetExtension(value as string).ToLower();
            }

return String.Empty;
        }

public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }

#endregion
    }
}