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Stack::Clear Method

Removes all objects from the Stack.

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

public:
virtual void Clear()

Count is set to zero, and references to other objects from elements of the collection are also released.

This method is an O(n) operation, where n is Count.

The following example shows how to clear the values of the Stack.


using namespace System;
using namespace System::Collections;
void PrintValues( IEnumerable^ myCollection );
int main()
{

   // Creates and initializes a new Stack.
   Stack^ myStack = gcnew Stack;
   myStack->Push( "The" );
   myStack->Push( "quick" );
   myStack->Push( "brown" );
   myStack->Push( "fox" );
   myStack->Push( "jumped" );

   // Displays the count and values of the Stack.
   Console::WriteLine( "Initially," );
   Console::WriteLine( "   Count    : {0}", myStack->Count );
   Console::Write( "   Values:" );
   PrintValues( myStack );

   // Clears the Stack.
   myStack->Clear();

   // Displays the count and values of the Stack.
   Console::WriteLine( "After Clear," );
   Console::WriteLine( "   Count    : {0}", myStack->Count );
   Console::Write( "   Values:" );
   PrintValues( myStack );
}

void PrintValues( IEnumerable^ myCollection )
{
   IEnumerator^ myEnum = myCollection->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Object^ obj = safe_cast<Object^>(myEnum->Current);
      Console::Write( "    {0}", obj );
   }

   Console::WriteLine();
}

/* 
 This code produces the following output.

 Initially,
    Count    : 5
    Values:    jumped    fox    brown    quick    The
 After Clear,
    Count    : 0
    Values:
 */


.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

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.
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