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Assert.IsInstanceOfType Method (Object, Type, String)

Verifies that the specified object is an instance of the specified type. The assertion fails if the type is not found in the inheritance hierarchy of the object. Displays a message if the assertion fails.

Namespace: Microsoft.VisualStudio.TestTools.UnitTesting
Assembly: Microsoft.VisualStudio.QualityTools.UnitTestFramework (in microsoft.visualstudio.qualitytools.unittestframework.dll)

public static void IsInstanceOfType (
	Object value,
	Type expectedType,
	string message
)
public static void IsInstanceOfType (
	Object value, 
	Type expectedType, 
	String message
)
public static function IsInstanceOfType (
	value : Object, 
	expectedType : Type, 
	message : String
)

Parameters

value

The object to verify is of expectedType.

expectedType

The type expected to be found in the inheritance hierarchy of value.

message

A message to display if the assertion fails. This message can be seen in the unit test results.

Exception typeCondition

AssertFailedException

value is a null reference (Nothing in Visual Basic) or expectedType is not found in the inheritance hierarchy of value.

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