WPF RadioButton 转换

模型

public class people
{
   public string name{get;set;}       
   public bool? sex{get;set;}       
}

转换器

namespace Helper
{
    public class StringRadioConvert : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value == null || parameter == null)
                return false;
            string checkvalue = value.ToString();
            string targetvalue = parameter.ToString();
            bool r = checkvalue.Equals(targetvalue, StringComparison.InvariantCultureIgnoreCase);
            return r;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null || parameter == null)
                return null;
            bool usevalue = (bool)value;
            if (usevalue)
                return parameter.ToString();
            return null;
        }
    }
    /// <summary>
    /// BOOL TO BOOL 
    /// </summary>
    public class BoolRadioConvert : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value == null || parameter == null)
                return false;

            bool flag = (bool)value;


            if ((flag && (string)parameter == "男") || (!flag && (string)parameter == "女"))
            {
                return true;
            }

            return false;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null || parameter == null)
                return null;
            bool usevalue = (bool)value;
            if (!usevalue)
                return null;
            Dictionary<string, bool> dict = new Dictionary<string, bool>();
            dict.Add("男", true);
            dict.Add("女", false);

            return dict[parameter.ToString()];
        }
    }

}

VIEW

<UserControl ......
             xmlns:helper="clr-namespace:Helper"......>
    <UserControl.Resources>
        <helper:StringRadioConvert x:Key="radioStringConverter" />
        <helper:BoolRadioConvert x:Key="radioBoolConverter" />
   </UserControl.Resources>

 <Label VerticalAlignment="Center" HorizontalAlignment="Right" FontWeight="ExtraBlack">用户:</Label>
                    <RadioButton Content="小陈" GroupName="SeatGroup" IsChecked="{Binding people.name, Converter={StaticResource radioStringConverter}, ConverterParameter='小陈'}"></RadioButton>
                    <RadioButton Content="小李" GroupName="SeatGroup" IsChecked="{Binding people.name, Converter={StaticResource radioStringConverter}, ConverterParameter='小李'}" ></RadioButton>
 
<Label VerticalAlignment="Center" HorizontalAlignment="Right" FontWeight="ExtraBlack">输血史:</Label>
                    <RadioButton Margin="4 0" GroupName="TransfusionGroup" IsChecked="{Binding people.sex , Converter={StaticResource radioBoolConverter}, ConverterParameter='男'}">男</RadioButton>
                    <RadioButton Margin="4 0" GroupName="TransfusionGroup" IsChecked="{Binding people.sex , Converter={StaticResource radioBoolConverter}, ConverterParameter='女'}">女</RadioButton>
                    

</UserControl>

 

解析：

name为string类型，转化为bool

sex需定义为bool?类型，否则会出现红框提示，此外，IsChecked是无法直接绑定变量的