Extension to create a consistent way to check if null or empty with different types.

IsNullOrEmptyExtensions.cs

using System.Collections.Generic;


public static class IsNullOrEmptyExtensions
{
	public static bool IsNullOrEmpty(this string str)
	{
		return string.IsNullOrEmpty(str);
	}

	public static bool IsNullOrEmpty<T>(this ICollection<T> collection)
	{
		return collection == null || collection.Count == 0;
	}

	public static bool IsNullOrEmpty<T>(this T[] array)
	{
		return array == null || array.Length == 0;
	}
}