Change the first letter of every word into uppercase, lowercasing everything else

UppercaseWords.cs

internal static string UppercaseWords(string value)
{
    if (string.IsNullOrEmpty(value)) return value;
    value = value.ToLower();

    var array = value.ToCharArray();
    if (array.Length >= 1)
    {
        if (char.IsLower(array[0]))
        {
            array[0] = char.ToUpper(array[0]);
        }
    }

    for (var i = 1; i < array.Length; i++)
    {
        if (array[i - 1] != ' ') continue;

        if (char.IsLower(array[i])) array[i] = char.ToUpper(array[i]);
    }

    return new string(array);
}