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 System;
 using System.Collections;

 public class SamplesStack  {

    public static void Main()  {

       // Creates and initializes a new Stack.
       Stack myStack = new 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 );

    }

    public static void PrintValues( IEnumerable myCollection )  {
       foreach ( Object obj in myCollection )
          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: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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