I watched this article , but I have problems saving the listed value in the settings.
I created the following listing
public enum FType
{
None,
Delimited,
FixedWidth,
XML
};
I have a choice of a switch that works well, but now I want to save the selected parameter in the settings, but there seems to be no way to store an enumerated variable.
I suggested that I could convert the enumeration to a string and then convert it back, but being a bit noob when it comes to WPF, I'm not quite sure where to start.
Here is the code I've created so far:
App.xaml
<Application x:Class="Widget.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:properties="clr-namespace:Widget.Properties"
StartupUri="Window1.xaml"
Exit="Application_Exit">
<Application.Resources>
<properties:Settings x:Key="Settings" />
</Application.Resources>
</Application>
App.xaml.cs
public partial class App : Application
{
private void Application_Exit(object sender, ExitEventArgs e)
{
Widget.Properties.Settings.Default.Save();
}
}
Windows.xaml
<Window x:Class="Widget.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:Widget"
Title="Window1" Height="85" Width="300">
<Window.Resources>
<local:EnumBooleanConverter x:Key="enumBooleanConverter"/>
</Window.Resources>
<Grid>
<StackPanel>
<RadioButton GroupName="FileType" Content="Delimited" IsChecked="{Binding Path=Default.FileType, Mode=TwoWay, Converter={StaticResource enumBooleanConverter}, ConverterParameter=Delimited}" />
<RadioButton GroupName="FileType" Content="Fixed Width" IsChecked="{Binding Path=Default.FileType, Mode=TwoWay, Converter={StaticResource enumBooleanConverter}, ConverterParameter=FixedWidth}"/>
<RadioButton GroupName="FileType" Content="XML" IsChecked="{Binding Path=Default.FileType, Mode=TwoWay, Converter={StaticResource enumBooleanConverter}, ConverterParameter=XML}"/>
</StackPanel>
</Grid>
</Window>
Converter.cs
public class EnumBooleanConverter : IValueConverter
{
public EnumBooleanConverter()
{
}
#region IValueConverter Members
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
string parameterString = parameter as string;
if (parameterString == null)
return DependencyProperty.UnsetValue;
if (Enum.IsDefined(value.GetType(), value) == false)
return DependencyProperty.UnsetValue;
object parameterValue = Enum.Parse(value.GetType(), parameterString);
return parameterValue.Equals(value);
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
string parameterString = parameter as string;
if (parameterString == null)
return DependencyProperty.UnsetValue;
return Enum.Parse(targetType, parameterString);
}
#endregion
}