Contact Manager Web API

This sample uses ASP.NET Web API to build a simple contact manager application. The application consists of a contact manager web API that is used by an ASP.NET MVC application, a Windows Phone application, and a Windows 8 app to display and manage a list of contacts.

C# (1.9 MB)
 
 
 
 
 
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8/16/2012
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C#
using System;
using Windows.UI.Xaml.Data;

namespace ContactManager.WindowsStore.Common
{
    /// <summary>
    /// Value converter that translates true to false and vice versa.
    /// </summary>
    public sealed class BooleanNegationConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            return !(value is bool && (bool)value);
        }

        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            return !(value is bool && (bool)value);
        }
    }
}