ExtractValueFromVariant<T>(ISystemContext,Object,Boolean) Method

Converts a values contained in a variant to the value defined for the variable.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overloads Shared Function ExtractValueFromVariant(Of T)( _
   ByVal context As ISystemContext, _
   ByVal value As Object, _
   ByVal throwOnError As Boolean _
) As Object

'Usage
 
Dim context As ISystemContext
Dim value As Object
Dim throwOnError As Boolean
Dim value As Object
 
value = BaseVariableState.ExtractValueFromVariant(Of T)(context, value, throwOnError)

public static object ExtractValueFromVariant<T>( 
   ISystemContext context,
   object value,
   bool throwOnError
)

public:
static Object^ ExtractValueFromVariantgeneric<typename T>
( 
   ISystemContext^ context,
   Object^ value,
   bool throwOnError
)

Parameters

context: The context.
value: The value.
throwOnError: if set to true throws the ServiceResultException on error, otherwise default value for T is returned .

Type Parameters

T: The framework type of value contained in this instance.

Return Value

The value of the type.

Exceptions

Exception	Description
ServiceResultException	If cannot convert value.

Remarks

If throwOnError is false the default value for the type is returned if the value is not valid.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

BaseVariableState Class
BaseVariableState Members
Overload List