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Assert.IsInstanceOfType Method (Object, Type, String, Object[])

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, and applies the specified formatting to it.

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,
	params Object[] parameters
)

Parameters

value
Type: System.Object
expectedType
Type: System.Type

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

message
Type: System.String
parameters
Type: System.Object[]

ExceptionCondition
AssertFailedException

value is null or expectedType is not found in the inheritance hierarchy of value.

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