Returns a sequence as array. - CSharp System

CSharp examples for System:Array Convert

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Description

Returns a sequence as array.

Demo Code

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using System.Linq;
using System.Collections.Generic;

public class Main{
        /// <summary>
        /// Returns a sequence as array.
        /// </summary>
        /// <param name="seq">The input sequence.</param>
        /// <param name="nullAsEmpty">
        /// Return an empty array if <paramref name="seq" /> is <see langword="null" /> (<see langword="true" />)
        /// or <see langword="null" /> instead (<see langword="false" />).
        /// </param>
        /// <returns>The output value.</returns>
        public static T[] AsArray<T>(IEnumerable<T> seq, bool nullAsEmpty = false)
        {//from w  w  w  . j  a  v  a2 s.  co m
            if (seq == null)
            {
                return !nullAsEmpty ? null : new T[0];
            }

            var result = seq as T[];
            if (result == null)
            {
                result = seq.ToArray();
            }

            return result;
        }
}

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