Type.IsInstanceOfType Method (Object)
Determines whether the specified object is an instance of the current Type.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- o
-
Type:
System.Object
The object to compare with the current type.
Return Value
Type: System.Booleantrue if the current Type is in the inheritance hierarchy of the object represented by o, or if the current Type is an interface that o implements. false if neither of these conditions is the case, if o is null, or if the current Type is an open generic type (that is, ContainsGenericParameters returns true).
Implements
_Type.IsInstanceOfType(Object)This method can be overridden by a derived class.
Note |
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A constructed type is not an instance of its generic type definition. That is, MyGenericList<int> (MyGenericList(Of Integer) in Visual Basic) is not an instance of MyGenericList<T> (MyGenericList(Of T) in Visual Basic). |
The following example demonstrates the use of the IsInstanceOfType method.
using System; public interface IExample {} public class BaseClass : IExample {} public class DerivedClass : BaseClass {} public class Example { public static void Main() { var interfaceType = typeof(IExample); var base1 = new BaseClass(); var base1Type = base1.GetType(); var derived1 = new DerivedClass(); var derived1Type = derived1.GetType(); int[] arr = new int[11]; Console.WriteLine("Is int[] an instance of the Array class? {0}.", typeof(Array).IsInstanceOfType(arr)); Console.WriteLine("Is base1 an instance of BaseClass? {0}.", base1Type.IsInstanceOfType(base1)); Console.WriteLine("Is derived1 an instance of BaseClass? {0}.", base1Type.IsInstanceOfType(derived1)); Console.WriteLine("Is base1 an instance of IExample? {0}.", interfaceType.IsInstanceOfType(base1)); Console.WriteLine("Is derived1 an instance of IExample? {0}.", interfaceType.IsInstanceOfType(derived1)); } } // The example displays the following output: // Is int[] an instance of the Array class? True. // Is base1 an instance of BaseClass? True. // Is derived1 an instance of BaseClass? True. // Is base1 an instance of IExample? True. // Is derived1 an instance of IExample? True.
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
