EnumToVisibilityConverter.cs

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

namespace FLY.Thick.Base.UI.Converter
{
    public class EnumToVisibilityConverter<TEnum> : IValueConverter
    where TEnum : struct
    {

        #region IValueConverter 成员

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            TEnum type = (TEnum)value;
            bool enable = false;
            if (Enum.GetName(typeof(TEnum), type) == (parameter as string))
                enable = true;

            string p = null;
            if (parameter != null)
                p = parameter as string;

                if (enable)
                    return System.Windows.Visibility.Visible;
                else
                    return System.Windows.Visibility.Hidden;
        }

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

        #endregion
    }

    public class Equals2VisibleConverter : IValueConverter
    {
        #region IValueConverter 成员

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Type tv = value.GetType();

            Type tp = parameter.GetType();
            if (tp.Equals(tv))
            {
                if (value.Equals(parameter))
                    return System.Windows.Visibility.Visible;
            }
            return System.Windows.Visibility.Hidden;
        }

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

        #endregion
    }
    public class Equals2VisibleConverter_Collapsed : IValueConverter
    {
        #region IValueConverter 成员

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Type tv = value.GetType();

            Type tp = parameter.GetType();
            
            if (tp.Equals(tv))
            {
                if (value.Equals(parameter))
                    return System.Windows.Visibility.Visible;
            }
            return System.Windows.Visibility.Collapsed;
        }

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

        #endregion
    }
    public class Equals2CollapsedConverter : IValueConverter
    {
        #region IValueConverter 成员

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Type tv = value.GetType();

            Type tp = parameter.GetType();
            if (tp.Equals(tv))
            {
                if (value.Equals(parameter))
                    return System.Windows.Visibility.Collapsed;
            }
            return System.Windows.Visibility.Visible;
        }

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

        #endregion
    }
    public class Equals2HiddenConverter : IValueConverter
    {
        #region IValueConverter 成员

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Type tv = value.GetType();

            Type tp = parameter.GetType();
            if (tp.Equals(tv))
            {
                if (value.Equals(parameter))
                    return System.Windows.Visibility.Hidden;
            }
            return System.Windows.Visibility.Visible;
        }

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

        #endregion
    }
    public class Equals2BoolConverter : IValueConverter
    {

        #region IValueConverter 成员

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Type tv = value.GetType();

            Type tp = parameter.GetType();
            if (tp.Equals(tv))
            {
                if (value.Equals(parameter))
                    return true;
            }
            return false;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if ((bool)value == true)
            {
                return parameter;
            }
            else
            {
                return null;
            }
        }

        #endregion
    }
}