MTP2.0_CSharp/Muchinfo.Common/Fx4.0/Muchinfo.ChartClient/MuchInfo.Chart/MuchInfo.Chart.App/Converters/LanguageConverter.cs

using GalaSoft.MvvmLight.Ioc;
using MuchInfo.Chart.App.Services;
using MuchInfo.Chart.Data.EnumTypes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Data;

namespace MuchInfo.Chart.App.Converters
{
    [ValueConversion(typeof(KeyValuePair<ChartLanguageType, string>), typeof(ChartLanguageType))]
    public class LanguageConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            var dataService = SimpleIoc.Default.GetInstance<IDataService>();
            var list = dataService.GetLanguages();
            if (value == null)
                return list.FirstOrDefault();

            var type = (ChartLanguageType)value;
            IndexFormula.Finance.Win.SetLanguage.SetcurrentLanguage((ChartLanguageType)value);
            return list.FirstOrDefault(z => z.Key == type);
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {

            var keyPair = (KeyValuePair<ChartLanguageType, string>)value;
            return keyPair.Key;
        }
    }
}