Class FlagEnumToBooleanConverter
Converts an enumeration to a boolean if the given enum value has the flag provided by the converter parameter.
Implements
Namespace: Sartorius.SAF.Presentation.Converter
Assembly: Sartorius.SAF.Presentation.dll
Syntax
public class FlagEnumToBooleanConverter : MarkupExtension, IValueConverterMethods
View SourceConvert(object, Type, object, CultureInfo)
Convert a value. Called when moving a value from source to target.
Declaration
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)Parameters
| Type | Name | Description |
|---|---|---|
| object | value | value as produced by source binding |
| Type | targetType | target type |
| object | parameter | converter parameter |
| CultureInfo | culture | culture information |
Returns
| Type | Description |
|---|---|
| object | Converted value. System.Windows.DependencyProperty.UnsetValue may be returned to indicate that the converter produced no value and that the fallback (if available) or default value should be used instead. Binding.DoNothing may be returned to indicate that the binding should not transfer the value or use the fallback or default value. |
Remarks
The data binding engine does not catch exceptions thrown by a user-supplied converter. Thus any exception thrown by Convert, or thrown by methods it calls and not caught by the Convert, will be treated as a runtime error (i.e. a crash). Convert should handle anticipated problems by returning DependencyProperty.UnsetValue.
ConvertBack(object, Type, object, CultureInfo)
Convert back a value. Called when moving a value from target to source. This should implement the inverse of Convert.
Declaration
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)Parameters
| Type | Name | Description |
|---|---|---|
| object | value | value, as produced by target |
| Type | targetType | target type |
| object | parameter | converter parameter |
| CultureInfo | culture | culture information |
Returns
| Type | Description |
|---|---|
| object | Converted back value. Binding.DoNothing may be returned to indicate that no value should be set on the source property. System.Windows.DependencyProperty.UnsetValue may be returned to indicate that the converter is unable to provide a value for the source property, and no value will be set to it. |
Remarks
The data binding engine does not catch exceptions thrown by a user-supplied converter. Thus any exception thrown by ConvertBack, or thrown by methods it calls and not caught by the ConvertBack, will be treated as a runtime error (i.e. a crash). ConvertBack should handle anticipated problems by returning DependencyProperty.UnsetValue.
ProvideValue(IServiceProvider)
Returns the FlagEnumToBooleanConverter.
Declaration
public override object ProvideValue(IServiceProvider serviceProvider)Parameters
| Type | Name | Description |
|---|---|---|
| IServiceProvider | serviceProvider | A service provider helper that can provide services for the markup extension. |
Returns
| Type | Description |
|---|---|
| object |