CODEWITHSUNDEEP
c#wpfxamlenumswindows-phone-8.1
Vahid
Vahid

Reputation: 3442

Windows Phone 8.1 XAML: Put Enum Value into XAML Attribute

This is my Enum structure:

namespace MyNS
{
    enum MyEnum
    {
        MyValOne = 1,
        MyValTwo = 2
    }
}

Instead of this:

<RadioButton x:Name="1" />
<RadioButton x:Name="2" />

I want something like this: (The x:Name attribute is not important. Any attribute is ok)

<RadioButton x:Name="MyNS.MyEnum.MyValOne" />
<RadioButton x:Name="MyNS.MyEnum.MyValTwo" />

How can I do this?

Upvotes: 2

Views: 713

Answers (1)

Justin XL
Justin XL

Reputation: 39006

You just need an enum converter like this.

public class EnumRadioButtonConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, string language)
    {
        return value.ToString() == parameter.ToString();
    }

    public object ConvertBack(object value, Type targetType, object parameter, string language)
    {
        return (bool)value ? Enum.Parse(typeof(MyEnum), parameter.ToString(), true) : null;
    }
}

And this is how you use it (don't forget to give them a GroupName). You will need to define a SelectedEnum property (of type MyEnum) in your viewmodel of course.

<RadioButton IsChecked="{Binding SelectedEnum, ConverterParameter=MyValTwo, Converter={StaticResource EnumRadioButtonConverter}, Mode=TwoWay}" GroupName="MyRadioButtonGroup" />
<RadioButton IsChecked="{Binding SelectedEnum, ConverterParameter=MyValOne, Converter={StaticResource EnumRadioButtonConverter}, Mode=TwoWay}" GroupName="MyRadioButtonGroup" />

To use the converter, you need to reference it in your resource section.

<Page.Resources>
    <local:EnumRadioButtonConverter x:Key="EnumRadioButtonConverter" />

Please find a working sample here.

Upvotes: 3

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