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/*************************************************************************************
Extended WPF Toolkit
Copyright (C) 2007-2013 Xceed Software Inc.
This program is provided to you under the terms of the Microsoft Public
License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license
For more features, controls, and fast professional support,
pick up the Plus Edition at http://xceed.com/wpf_toolkit
Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
***********************************************************************************/
using System;
using System.Collections.Generic;
using System.Collections;
namespace Xceed.Wpf.AvalonDock
{
internal static class Extensions
{
public static bool Contains( this IEnumerable collection, object item )
{
foreach( var o in collection )
if( o == item )
return true;
return false;
}
public static void ForEach<T>( this IEnumerable<T> collection, Action<T> action )
{
foreach( T v in collection )
action( v );
}
public static int IndexOf<T>( this T[] array, T value ) where T : class
{
for( int i = 0; i < array.Length; i++ )
if( array[ i ] == value )
return i;
return -1;
}
public static V GetValueOrDefault<V>( this WeakReference wr )
{
if( wr == null || !wr.IsAlive )
return default( V );
return ( V )wr.Target;
}
}
}
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