#region Imports
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using System.Collections.Generic;
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using System.Linq;
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#endregion
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namespace DPumpHydr.WinFrmUI.RLT.Extension.Crown
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{
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#region IEnumerableExtensionsExtension
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internal static class IEnumerableExtensions
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{
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internal static bool IsLast<T>(this IEnumerable<T> items, T item)
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{
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T last = items.LastOrDefault();
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if (last == null)
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{
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return false;
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}
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return item.Equals(last);
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}
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internal static bool IsFirst<T>(this IEnumerable<T> items, T item)
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{
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T first = items.FirstOrDefault();
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if (first == null)
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{
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return false;
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}
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return item.Equals(first);
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}
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internal static bool IsFirstOrLast<T>(this IEnumerable<T> items, T item)
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{
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return items.IsFirst(item) || items.IsLast(item);
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}
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}
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#endregion
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}
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