by Paulo Morgado via Paulo Morgado : C# on 5/13/2007 6:41:09 PM
Extension methods are a feature of the new C# language specification (also available in Visual Basic [^] [^]):
This new feature should be used in existing classes like the String class by making the folowing methods extension methods:
public static int Compare(this string strA, string strB);
public static int Compare(this string strA, string strB, bool ignoreCase);
public static int Compare(this string strA, string strB, System.StringComparison comparisonType);
public static int Compare(this string strA, string strB, bool ignoreCase, System.Globalization.CultureInfo culture);
public static int Compare(this string strA, int indexA, string strB, int indexB, int length);
public static int Compare(this string strA, int indexA, string strB, int indexB, int length, bool ignoreCase);
public static int Compare(this string strA, int indexA, string strB, int indexB, int length, System.StringComparison comparisonType);
public static int Compare(this string strA, int indexA, string strB, int indexB, int length, bool ignoreCase, System.Globalization.CultureInfo culture);
public static int CompareOrdinal(this string strA, string strB);
public static int CompareOrdinal(this string strA, int indexA, string strB, int indexB, int length);
public static string Concat(this string str0, string str1);
public static string Concat(this string str0, string str1, string str2);
public static string Concat(this string str0, string str1, string str2, string str3);
public static string Copy(this string str);
public static string Intern(this string str);
public static string IsInterned(this string str);
public static bool IsNullOrEmpty(this string value);
This would allow us to write code like this:
if (someString.IsNullOrEmpty())
{
//...
}
If you would like to see this in the next release of the .NET framework, vote on this suggestion.
Original Post: Extension methods missing from System.String in the .NET Framework 3.5 (Beta 1)
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