Revit.Plugln/FWindSoft/FWindSoft.Wpf/Converter/BoolToBoolItemConverter.cs


///////////////////////////////////////////////////////////////////////////////
//Copyright (c) 2016, 北京探索者软件公司
//All rights reserved.       
//文件名称: BoolToBoolItemConverter.cs
//文件描述: 布尔转换成BoolItem
//创 建 者: xls
//创建日期: 2018-1-18
//版 本 号：1.0.0.0
////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;

namespace FWindSoft.Wpf
{
    public class BoolToBoolItemConverter: IValueConverter
    {
        public static BoolToBoolItemConverter Instance = new BoolToBoolItemConverter();
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Type sourceType = value.GetType();
            if (sourceType!=typeof(bool))
                return value;
            var enumerable = parameter as IEnumerable<Object>;
            if (enumerable == null)
                return value;
            var items = enumerable.OfType<BoolItem>();
            return items.FirstOrDefault(i => i.Value.Equals(System.Convert.ChangeType(value, sourceType)));

        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            BoolItem item = value as BoolItem;
            if (item == null)
                return value;
            return item.Value;
        }
    }
}