Array - Clear

Sets a range of elements in the to zero, to false, or to null, depending on the element type.

Try it

public static void Main()
{
	Array myIntArray = Array.CreateInstance(typeof(Int32), 8);

    myIntArray.SetValue(8, 0);
    myIntArray.SetValue(2, 1);
    myIntArray.SetValue(6, 2);
    myIntArray.SetValue(3, 3);
    myIntArray.SetValue(7, 4);
	myIntArray.SetValue(9, 5);
	myIntArray.SetValue(17, 6);
	myIntArray.SetValue(11, 7);

    // Displays the values of the Array.
    Console.WriteLine( "The Int32 array contains the following:" );
    PrintValues(myIntArray);
	
	Console.WriteLine("myIntArray.Clear(2,4);");
	
	// C# Extension Method: Array - Clear
	myIntArray.Clear(2,4);
	PrintValues(myIntArray);
}

public static void PrintValues(Array myArr)
{
    int i = 0;
    int cols = myArr.GetLength(myArr.Rank - 1);
    foreach (object o in myArr)
    {
        if ( i < cols )
        {
            i++;
        }
        else
        {
            Console.WriteLine();
            i = 1;
        }
        Console.Write( "\t{0}", o);
    }
    Console.WriteLine();
}

View Source 
using System;

public static partial class Extensions
{
    /// <summary>
    ///     Sets a range of elements in the  to zero, to false, or to null, depending on the element type.
    /// </summary>
    /// <param name="array">The  whose elements need to be cleared.</param>
    /// <param name="index">The starting index of the range of elements to clear.</param>
    /// <param name="length">The number of elements to clear.</param>
    public static void Clear(this Array array, Int32 index, Int32 length)
    {
        Array.Clear(array, index, length);
    }
}