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Type.IsArrayImpl Method

When overridden in a derived class, implements the IsArray property and determines whether the Type is an array.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
protected abstract bool IsArrayImpl()

Return Value

Type: System.Boolean
true if the Type is an array; otherwise, false.

An instance of the Array class must return false because it is an object, not an array.

The following example overrides the IsArrayImpl method in the MyTypeDelegator class, checks if a variable is an array, and displays the result.

using System;
using System.Reflection;
public class MyTypeDelegator : TypeDelegator
{
    public string myElementType = null;
    public Type myType;
    public MyTypeDelegator(Type myType) : base(myType)
    {
        this.myType = myType;
    }
    // Override IsArrayImpl(). 
    protected override bool IsArrayImpl()
    {
        // Determine whether the type is an array. 
        if(myType.IsArray)
        {
            myElementType = "array";
            return true;
        }
        // Return false if the type is not an array. 
        return false;  
    }
}
public class Type_IsArrayImpl
{
    public static void Main()
    {
        try
        {
            int myInt = 0 ; 
            // Create an instance of an array element. 
            int[] myArray = new int[5];
            MyTypeDelegator myType = new MyTypeDelegator(myArray.GetType());
            Console.WriteLine("\nDetermine whether the variable is an array.\n");
            // Determine whether myType is an array type.   
            if( myType.IsArray)
                Console.WriteLine("The type of myArray is {0}.", myType.myElementType);
            else
                Console.WriteLine("myArray is not an array.");
            myType = new MyTypeDelegator(myInt.GetType());

            // Determine whether myType is an array type.  
            if( myType.IsArray)
                Console.WriteLine("The type of myInt is {0}.", myType.myElementType);
            else
                Console.WriteLine("myInt is not an array.");
        }
        catch( Exception e )
        {
            Console.WriteLine("Exception: {0}", e.Message );
        }
    }
}

.NET Framework

Supported in: 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

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, 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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