csharp Left, Right and Mid examples

public static void leftRightMid_Demo()
{
	string myString = "This is a string";

	//4 characters from the left
	Console.WriteLine(Left(myString,7));

	//6 characters from the right
	Console.WriteLine(Right(myString,6));

	//4 characters starting at index 5 of the string
	Console.WriteLine(Mid(myString,5,4));

	//characters from index 5 up to the end of the string
	Console.WriteLine(Mid(myString,5));
}

public static string Left(string param, int length)
{
	if (length > param.Length)
		length = param.Length;

	return param.Substring(0, length);
}

public static string Right(string param, int length)
{
	return param.Substring((param.Length - length), length);
}

public static string Mid(string param, int startIndex, int length)
{
	return param.Substring(startIndex, length);
}

public static string Mid(string param, int startIndex)
{
	return param.Substring(startIndex);
}

//Extension method alternative for Left()
public static string Left(this string str, int length)
{
	if (length > str.Length) length = str.Length;
	return str.Substring(0, length);
}
VB's Left(), Right() and Mid() implemented in C#

Updated: Tuesday 3rd May 2011, 15:49pm

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