Verifies that the specified object is not nulla null reference (Nothing in Visual Basic). The assertion fails if it is nulla null reference (Nothing in Visual Basic). Displays a message if the assertion fails.
Namespace:  Microsoft.VisualStudio.TestTools.UnitTesting
Assembly:  Microsoft.VisualStudio.QualityTools.UnitTestFramework (in Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll)
Syntax
'Declaration
Public Shared Sub IsNotNull ( _
    value As Object, _
    message As String _
)
public static void IsNotNull(
    Object value,
    string message
)
public:
static void IsNotNull(
    Object^ value, 
    String^ message
)
static member IsNotNull : 
        value:Object * 
        message:string -> unit
public static function IsNotNull(
    value : Object, 
    message : String
)
Parameters
- value 
 Type: Object- The object to verify is not nulla null reference (Nothing in Visual Basic). 
- message 
 Type: String- A message to display if the assertion fails. This message can be seen in the unit test results. 
Exceptions
| Exception | Condition | 
|---|---|
| AssertFailedException | value is nulla null reference (Nothing in Visual Basic). | 
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
See Also
Reference
Microsoft.VisualStudio.TestTools.UnitTesting Namespace