ConvertBack Method (DataValidationNullValueConverter)

Converts a value to a DataValidate list item value.

Syntax

Visual Basic
C#

'Declaration
 
Public Function ConvertBack( _
   ByVal value As Object, _
   ByVal targetType As Type, _
   ByVal parameter As Object, _
   ByVal language As String _
) As Object

'Usage
 
Dim instance As DataValidationNullValueConverter
Dim value As Object
Dim targetType As Type
Dim parameter As Object
Dim language As String
Dim value As Object
 
value = instance.ConvertBack(value, targetType, parameter, language)

public object ConvertBack( 
   object value,
   Type targetType,
   object parameter,
   string language
)

Parameters

value: The value that is produced by the binding target.
targetType: The type to convert to.
parameter: The converter parameter to use.
language: The language.

Return Value

A converted value. If the method returns null, the valid null value is used.

Exceptions

Exception	Description
System.NotImplementedException	The exception that is thrown when a requested method or operation is not implemented.

Reference

DataValidationNullValueConverter Class
DataValidationNullValueConverter Members