How to convert back from string to Enum

How to convert back from string to Enum

I have a a class which is made of property information of a target(like
type and values ). Iam using this UI to show all types on view in
graphical format like Enum with comboboxes and boolean with
checkboxes.Everything works well for me except the case when I change
combobox value in UI,it does not change in viewmodel.Every time I change
value in combobox it calls convertback method in my converter.I need to
convert this string to enum type,I can write the convertback code easily
for a particular enum type ,but how can I convert all other enums with
this converter,I have the information of Type in PropertyType property
that I can pass to converter and use it but I have no idea how to do it.
This is my UI code (only relevant part)
<!-- Default DataTemplate -->
<DataTemplate x:Key="DefaultDataTemplate">
<Grid Margin="4" MinHeight="25">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" SharedSizeGroup="Key" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Name}" FontWeight="Bold" />
<TextBox Margin="8,0" Grid.Column="1" Text="{Binding Value}" />
</Grid>
</DataTemplate>
<!-- DataTemplate for Booleans -->
<DataTemplate x:Key="BooleanDataTemplate">
<Grid Margin="4" MinHeight="25">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" SharedSizeGroup="Key" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Name}" FontWeight="Bold" />
<CheckBox Margin="8,0" Grid.Column="1" IsChecked="{Binding
Value}" />
</Grid>
</DataTemplate>
<!-- DataTemplate for Enums -->
<DataTemplate x:Key="EnumDataTemplate">
<Grid Margin="4" MinHeight="25">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" SharedSizeGroup="Key" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Name}" FontWeight="Bold" />
<ComboBox Margin="8,0" SelectedItem="{Binding
Value,Converter={StaticResource
EnumToStringConverter},Mode=TwoWay}"
ItemsSource="{Binding PropertyType,
Converter={local:EnumToListConverter}}" Grid.Column="1"
HorizontalAlignment="Stretch" />
</Grid>
</DataTemplate>
<!-- DataTemplate Selector -->
<local:PropertyDataTemplateSelector x:Key="templateSelector"
DefaultnDataTemplate="{StaticResource DefaultDataTemplate}"
BooleanDataTemplate="{StaticResource BooleanDataTemplate}"
EnumDataTemplate="{StaticResource EnumDataTemplate}"/>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<ListView Grid.Row="0" ItemsSource="{Binding
Model,Converter={StaticResource PropConverter},
Mode=TwoWay,UpdateSourceTrigger=PropertyChanged,
NotifyOnSourceUpdated=True}" Grid.IsSharedSizeScope="True"
HorizontalContentAlignment="Stretch"
ItemTemplateSelector="{StaticResource templateSelector}"
/>
and my converter and view model
public object Convert(object value, Type targetType, object parameter,
System.Globalization.CultureInfo culture)
{
string EnumString;
try
{
EnumString = Enum.GetName((value.GetType()), value);
return EnumString;
}
catch
{
return string.Empty;
}
}
public object ConvertBack(object value, Type targetType,
object parameter, System.Globalization.CultureInfo culture)
{
return null;
//What to do here
}
View model
public class PropertyValue
{
private PropertyInfo propertyInfo;
private object baseObject;
public PropertyValue(PropertyInfo propertyInfo, object baseObject)
{
this.propertyInfo = propertyInfo;
this.baseObject = baseObject;
}
public string Name
{
get { return propertyInfo.Name; }
}
public Type PropertyType { get { return propertyInfo.PropertyType; } }
public object Value
{
get { return propertyInfo.GetValue(baseObject, null); }
set
{
propertyInfo.SetValue(baseObject, value , null);
}
}
}