using System; namespace ServerManagerTool.Common.Extensions { public static class StringExtensions { public static bool Contains(this string value, string substring, StringComparison comparisonType) { if (substring == null) throw new ArgumentNullException(nameof(substring), $"{nameof(substring)} cannot be null."); if (!Enum.IsDefined(typeof(StringComparison), comparisonType)) throw new ArgumentException($"{nameof(comparisonType)} is not a member of StringComparison", nameof(comparisonType)); return value.IndexOf(substring, comparisonType) >= 0; } } }