Class MultiConverterExtensionBase
Base class for MultiValueConverter
Inheritance
Implements
Namespace: Sartorius.SAF.Presentation.Converter
Assembly: Sartorius.SAF.Presentation.dll
Syntax
public class MultiConverterExtensionBase : MarkupExtension, IMultiValueConverterMethods
View SourceConvert(object[], Type, object, CultureInfo)
Converts source values to a value for the binding target. The data binding engine calls this method when it propagates the values from source bindings to the binding target.
Declaration
public virtual object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)Parameters
| Type | Name | Description |
|---|---|---|
| object[] | values | The array of values that the source bindings in the MultiBinding produces. The value UnsetValue indicates that the source binding has no value to provide for conversion. |
| Type | targetType | The type of the binding target property. |
| object | parameter | The converter parameter to use. |
| CultureInfo | culture | The culture to use in the converter. |
Returns
| Type | Description |
|---|---|
| object | A converted value.If the method returns null, the valid null value is used.A return value of DependencyProperty.UnsetValue indicates that the converter did not produce a value, and that the binding will use the FallbackValue if it is available, or else will use the default value.A return value of Binding.DoNothing indicates that the binding does not transfer the value or use the FallbackValue or the default value. |
ConvertBack(object, Type[], object, CultureInfo)
Converts a binding target value to the source binding values.
Declaration
public virtual object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)Parameters
| Type | Name | Description |
|---|---|---|
| object | value | The value that the binding target produces. |
| Type[] | targetTypes | The array of types to convert to. The array length indicates the number and types of values that are suggested for the method to return. |
| object | parameter | The converter parameter to use. |
| CultureInfo | culture | The culture to use in the converter. |
Returns
| Type | Description |
|---|---|
| object[] | An array of values that have been converted from the target value back to the source values. |
ProvideValue(IServiceProvider)
When implemented in a derived class, returns an object that is provided as the value of the target property for this markup extension.
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 | The object value to set on the property where the extension is applied. |