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Type::GetHashCode Method

Returns the hash code for this instance.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

virtual int GetHashCode() override

Return Value

Type: System::Int32
The hash code for this instance.



This method overrides Object::GetHashCode.

The following example displays the hash code of the System.Windows.Forms.Button class.

#using <system.dll>
#using <>
#using <System.Drawing.dll>

using namespace System;
using namespace System::Security;
using namespace System::Reflection;

int main()
   Type^ myType = System::Net::IPAddress::typeid;
   array<FieldInfo^>^myFields = myType->GetFields( static_cast<BindingFlags>(BindingFlags::Static | BindingFlags::NonPublic) );
   Console::WriteLine( "\nThe IPAddress class has the following nonpublic fields: " );
   System::Collections::IEnumerator^ myEnum = myFields->GetEnumerator();
   while ( myEnum->MoveNext() )
      FieldInfo^ myField = safe_cast<FieldInfo^>(myEnum->Current);
      Console::WriteLine( myField );

   Type^ myType1 = System::Net::IPAddress::typeid;
   array<FieldInfo^>^myFields1 = myType1->GetFields();
   Console::WriteLine( "\nThe IPAddress class has the following public fields: " );
   System::Collections::IEnumerator^ myEnum2 = myFields1->GetEnumerator();
   while ( myEnum2->MoveNext() )
      FieldInfo^ myField = safe_cast<FieldInfo^>(myEnum2->Current);
      Console::WriteLine( myField );

      Console::WriteLine( "The HashCode of the System::Windows::Forms::Button type is: {0}", System::Windows::Forms::Button::typeid->GetHashCode() );
   catch ( SecurityException^ e ) 
      Console::WriteLine( "An exception occurred." );
      Console::WriteLine( "Message: {0}", e->Message );
   catch ( Exception^ e ) 
      Console::WriteLine( "An exception occurred." );
      Console::WriteLine( "Message: {0}", e->Message );

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.