String.Substring Method

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.NET Framework Class Library

String.Substring Method

Retrieves a substring from this instance.

This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.

Overload List

	Name	Description
	Substring(Int32)	Retrieves a substring from this instance. The substring starts at a specified character position.
	Substring(Int32, Int32)	Retrieves a substring from this instance. The substring starts at a specified character position and has a specified length.

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Reference

String Class

System Namespace

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String.Substring

As the name indicates String.Substring returns sub string from the main string.

e.g.

string str = "Microsoft Community";
string strNew = str.subString(10); // strNew will be "Community"
strNew = str.subString(0,9); // strNew will be "Microsoft" - here 9 is length of characters.

Please note that Substring uses a zero indexing i.e. in above example letter 'M' is at zero position.

Janwari Farqi

8/22/2011

Index limits

The specified start position can be at the end of the string but not beyond.

string str = "abc";

string a2 = str.Substring(2); // returns "c"

string a3 = str.Substring(3); // returns an empty string

string a4 = str.Substring(4); // Causes an ArgumentOutOfRangeException

Paulustrious

11/15/2010