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