WPF binding RadioButton to enum

Multiple RadioButton selections are often required in WPF, and the selected option needs to be mapped to an enum value enum.

The solution to this situation is as follows:

1) need to create a UserControl, for example code is as follows:

<usercontrol x:class= "Shangfeixapp.xmodeusercontrol"

Xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"

Xmlns:mc= "http://schemas.openxmlformats.org/markup-compatibility/2006"

Xmlns:d= "http://schemas.microsoft.com/expression/blend/2008"

Xmlns:src= "Clr-namespace:shangfeixapp"

mc:ignorable= "D" >

<UserControl.Resources>

<src:xdatamodevalueconverter x:key= "Xmodeconverter"/>

</UserControl.Resources>

<grid x:name= "LayoutRoot" background= "white" margin= "ten" >

<Grid.RowDefinitions>

<rowdefinition height= "Auto"/>

<rowdefinition height= "Auto"/>

<rowdefinition height= "Auto"/>

</Grid.RowDefinitions>

<stackpanel orientation= "Horizontal" grid.row= "1" horizontalalignment= "Center" >

<radiobutton content= "Background" margin= "0 0 0" groupname= "mode" ischecked= "{Binding mode, Mode=twoway, Converterparameter=background_mode, Converter={staticresource Xmodeconverter}} "/>

<radiobutton content= "full scale" margin= "0 0 0" groupname= "mode" ischecked= "{Binding Mode, Mode=twoway, Converterp Arameter=fullscale_mode, Converter={staticresource Xmodeconverter}} "/>

<radiobutton content= "Normal" margin= "0 0 0" groupname= "mode" ischecked= "{Binding Mode, Mode=twoway, Converterparameter=normal_mode, Converter={staticresource Xmodeconverter}} "/>

</StackPanel>

</Grid>

</UserControl>

2) Define the enumeration and a class that carries the enumeration property, as follows:

public enum Xdatamode {background_mode, Fullscale_mode, normal_mode};

public class Xdatamodevalue:inotifypropertychanged

{

Private Xdatamode _mode = Xdatamode.background_mode;

Public Xdatamode Mode

{

get {return _mode;}

Set

{

if (_mode! = value)

{

_mode = value;

Notifypropertychanged ("mode");

}

}

}

private void Notifypropertychanged (String propertyname)

{

if (propertychanged! = null)

{

PropertyChanged (This, new PropertyChangedEventArgs (PropertyName));

}

}

public event PropertyChangedEventHandler PropertyChanged;

}

3) define bool with the enum worthy conversion class:

[Valueconversion (typeof (Xdatamode), typeof (Boolean))]

public class Xdatamodevalueconverter:ivalueconverter

{

BOOL Turn Visibility

public object Convert (object value, Type targetType, object parameter, CultureInfo culture)

{

return (value. ToString () = = parameter. ToString ());

}

public object Convertback (object value, Type targetType, object parameter, CultureInfo culture)

{

return (bool) value? Enum.parse (targetType, parameter. ToString (), true): null;

}

}

4) Define a variable in Mainwindows.cs or other code similar to the following:

Public Xdatamodevalue Xdatamodevalue {get; set;}

5) Implement the following source code in MainWindow, that is, given context, easy to bind

Public MainWindow ()

{

InitializeComponent ();

...

Loaded + = mainpage_loaded;

}

private void Mainpage_loaded (object sender, RoutedEventArgs e)

{

DataContext = Xdatamodevalue;

}

Complete!

WPF binding RadioButton to enum