String Class

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ASYNC Attribute AUTOCAPITALIZE Attribute AUTOCOMPLETE Attribute AUTOCORRECT Attribute AUTOPLAY Attribute BACKGROUND Attribute BACKGROUND Attribute BACKGROUND Attribute BACKGROUND Attribute BALANCE Attribute BEHAVIOR Attribute BGCOLOR Attribute BGCOLOR Attribute BGPROPERTIES Attribute BORDERCOLOR Attribute BORDER Attribute BORDER Attribute BOTTOMMARGIN Attribute CELLPADDING Attribute CELLSPACING Attribute CHARSET Attribute @charset Rule CHECKED Attribute CITE Attribute CLASSID Attribute CLASS Attribute CLEAR Attribute CODE Attribute CODEBASE Attribute CODETYPE Attribute COLOR Attribute COLOR Attribute COLSPAN Attribute COLS Attribute COLS Attribute COLS Attribute COMPACT Attribute CONTENT Attribute CONTROLS Attribute COORDS Attribute DATA Attribute DEFER Attribute DIR Attribute DIRECTION Attribute DIRECTION Attribute DOWNLOAD Attribute FACE Attribute FRAME Attribute FRAMEBORDER Attribute FRAMESPACING Attribute HEIGHT Attribute HREF Attribute HREFLANG Attribute HREF Attribute HREF Attribute HREF Attribute HSPACE Attribute FOR Attribute HTTP-EQUIV Attribute ID Attribute ISMAP Attribute LANG Attribute LANGUAGE Attribute LEFTMARGIN Attribute LINK Attribute LOOP Attribute LOOP Attribute LOWSRC Attribute Abakada DHTML Properties Reference: map Property MARGINHEIGHT Attribute MARGINWIDTH Attribute MAXLENGTH Attribute MEDIA Attribute METHOD Attribute METHODS Attribute MULTIPLE Attribute MUTED Attribute NAME Attribute NAME Attribute NAME Attribute NAME Attribute NOHREF Attribute NORESIZE Attribute NOSHADE Attribute NOWRAP Attribute PING Attribute PLUGINSPAGE Attribute READONLY Attribute REFERRERPOLICY Attribute REL Attribute REV Attribute RIGHTMARGIN Attribute ROWSPAN Attribute ROWS Attribute ROWS Attribute Abakada CSS Properties Reference: ruby-align Attribute Abakada CSS Properties Reference: ruby-overhang Attribute Abakada CSS Properties Reference: ruby-position Attribute RULES Attribute SCROLL Attribute SCROLLAMOUNT Attribute SCROLLDELAY Attribute SCROLLING Attribute SELECTED Attribute SHAPE Attribute SIZE Attribute Abakada DHTML Properties Reference: size Property SIZE Attribute SIZE Attribute Abakada DHTML Properties Reference: size Property SPAN Attribute SRC Attribute SRC Attribute SRC Attribute START Attribute TABINDEX Attribute TARGET Attribute TEXT Attribute Abakada DHTML Properties Reference: text Property TITLE Attribute TITLE Attribute TOPMARGIN Attribute TRUESPEED Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute TYPE Attribute UNITS Attribute URL Attribute URN Attribute USEMAP Attribute VALIGN Attribute VALIGN Attribute Abakada DHTML Properties Reference: value Property VALUE Attribute VALUE Attribute VCARD_NAME Attribute VLINK Attribute VOLUME Attribute VSPACE Attribute WIDTH Attribute WRAP Attribute XMLNS Attribute CSS Properties Animation Properties At-Rules Box Properties Color and Background Properties Display and Position Properties Filter Functions Font Properties Layout Properties Lists Properties Printing Properties Pseudo-Classes Text Properties Transform Functions Transition Properties DHTML Events Reference	Show Me

System Namespace

Represents an immutable string of characters.

Show Inherited Members

Visibility	Constructor	Parameters
public	String	( Char value )
public	String	( Char value , Int32 startIndex , Int32 length )
public	String	( SByte value )
public	String	( SByte value , Int32 startIndex , Int32 length )
public	String	( SByte value , Int32 startIndex , Int32 length , Encoding enc )
public	String	( Char value , Int32 startIndex , Int32 length )
public	String	( Char value )
public	String	( Char c , Int32 count )

Visibility	Name	Type
public static	Empty	String

Visibility	Name	Value Type	Accessibility
public	Chars ( Int32 index )	Char	[ Get ]
public	Length	Int32	[ Get ]

Visibility	Name	Parameters	Return Type
public	Clone	( )	Object
public static	Compare	( String strA , String strB )	Int32
public static	Compare	( String strA , Int32 indexA , String strB , Int32 indexB , Int32 length , Boolean ignoreCase , CultureInfo culture )	Int32
public static	Compare	( String strA , Int32 indexA , String strB , Int32 indexB , Int32 length , StringComparison comparisonType )	Int32
public static	Compare	( String strA , Int32 indexA , String strB , Int32 indexB , Int32 length , CultureInfo culture , CompareOptions options )	Int32
public static	Compare	( String strA , String strB , Boolean ignoreCase )	Int32
public static	Compare	( String strA , Int32 indexA , String strB , Int32 indexB , Int32 length )	Int32
public static	Compare	( String strA , Int32 indexA , String strB , Int32 indexB , Int32 length , Boolean ignoreCase )	Int32
public static	Compare	( String strA , String strB , Boolean ignoreCase , CultureInfo culture )	Int32
public static	Compare	( String strA , String strB , StringComparison comparisonType )	Int32
public static	Compare	( String strA , String strB , CultureInfo culture , CompareOptions options )	Int32
public static	CompareOrdinal	( String strA , Int32 indexA , String strB , Int32 indexB , Int32 length )	Int32
public static	CompareOrdinal	( String strA , String strB )	Int32
public	CompareTo	( Object value )	Int32
public	CompareTo	( String strB )	Int32
public static	Concat	( String str0 , String str1 )	String
public static	Concat	( Object arg0 , Object arg1 )	String
public static	Concat	( String values )	String
public static	Concat	( String str0 , String str1 , String str2 , String str3 )	String
public static	Concat	( String str0 , String str1 , String str2 )	String
public static	Concat	( Object args )	String
public static	Concat	( Object arg0 , Object arg1 , Object arg2 )	String
public static	Concat	( Object arg0 , Object arg1 , Object arg2 , Object arg3 )	String
public static	Concat	( IEnumerable`1 values )	String
public static	Concat	( IEnumerable`1 values )	String
public static	Concat	( Object arg0 )	String
public	Contains	( String value )	Boolean
public static	Copy	( String str )	String
public	CopyTo	( Int32 sourceIndex , Char destination , Int32 destinationIndex , Int32 count )	Void
public	EndsWith	( String value , Boolean ignoreCase , CultureInfo culture )	Boolean
public	EndsWith	( String value )	Boolean
public	EndsWith	( String value , StringComparison comparisonType )	Boolean
public static	Equals	( String a , String b )	Boolean
public	Equals	( String value , StringComparison comparisonType )	Boolean
public	Equals	( String value )	Boolean
public static	Equals	( String a , String b , StringComparison comparisonType )	Boolean
public	Equals	( Object obj )	Boolean
public static	Format	( String format , Object arg0 , Object arg1 , Object arg2 )	String
public static	Format	( IFormatProvider provider , String format , Object arg0 , Object arg1 )	String
public static	Format	( IFormatProvider provider , String format , Object arg0 , Object arg1 , Object arg2 )	String
public static	Format	( IFormatProvider provider , String format , Object args )	String
public static	Format	( IFormatProvider provider , String format , Object arg0 )	String
public static	Format	( String format , Object arg0 )	String
public static	Format	( String format , Object arg0 , Object arg1 )	String
public static	Format	( String format , Object args )	String
public	GetEnumerator	( )	CharEnumerator
public	GetHashCode	( )	Int32
public	GetTypeCode	( )	TypeCode
public	IndexOf	( String value , Int32 startIndex , Int32 count )	Int32
public	IndexOf	( String value , Int32 startIndex )	Int32
public	IndexOf	( String value )	Int32
public	IndexOf	( String value , Int32 startIndex , Int32 count , StringComparison comparisonType )	Int32
public	IndexOf	( String value , Int32 startIndex , StringComparison comparisonType )	Int32
public	IndexOf	( String value , StringComparison comparisonType )	Int32
public	IndexOf	( Char value , Int32 startIndex )	Int32
public	IndexOf	( Char value )	Int32
public	IndexOf	( Char value , Int32 startIndex , Int32 count )	Int32
public	IndexOfAny	( Char anyOf , Int32 startIndex , Int32 count )	Int32
public	IndexOfAny	( Char anyOf , Int32 startIndex )	Int32
public	IndexOfAny	( Char anyOf )	Int32
public	Insert	( Int32 startIndex , String value )	String
public static	Intern	( String str )	String
public static	IsInterned	( String str )	String
public	IsNormalized	( )	Boolean
public	IsNormalized	( NormalizationForm normalizationForm )	Boolean
public static	IsNullOrEmpty	( String value )	Boolean
public static	IsNullOrWhiteSpace	( String value )	Boolean
public static	Join	( String separator , Object values )	String
public static	Join	( String separator , String value )	String
public static	Join	( String separator , IEnumerable`1 values )	String
public static	Join	( String separator , String value , Int32 startIndex , Int32 count )	String
public static	Join	( String separator , IEnumerable`1 values )	String
public	LastIndexOf	( String value , Int32 startIndex , Int32 count )	Int32
public	LastIndexOf	( String value , Int32 startIndex )	Int32
public	LastIndexOf	( String value , Int32 startIndex , StringComparison comparisonType )	Int32
public	LastIndexOf	( String value , StringComparison comparisonType )	Int32
public	LastIndexOf	( Char value , Int32 startIndex )	Int32
public	LastIndexOf	( Char value )	Int32
public	LastIndexOf	( String value )	Int32
public	LastIndexOf	( Char value , Int32 startIndex , Int32 count )	Int32
public	LastIndexOf	( String value , Int32 startIndex , Int32 count , StringComparison comparisonType )	Int32
public	LastIndexOfAny	( Char anyOf , Int32 startIndex , Int32 count )	Int32
public	LastIndexOfAny	( Char anyOf , Int32 startIndex )	Int32
public	LastIndexOfAny	( Char anyOf )	Int32
public	Normalize	( )	String
public	Normalize	( NormalizationForm normalizationForm )	String
public	PadLeft	( Int32 totalWidth , Char paddingChar )	String
public	PadLeft	( Int32 totalWidth )	String
public	PadRight	( Int32 totalWidth )	String
public	PadRight	( Int32 totalWidth , Char paddingChar )	String
public	Remove	( Int32 startIndex , Int32 count )	String
public	Remove	( Int32 startIndex )	String
public	Replace	( Char oldChar , Char newChar )	String
public	Replace	( String oldValue , String newValue )	String
public	Split	( Char separator , Int32 count , StringSplitOptions options )	String
public	Split	( Char separator , StringSplitOptions options )	String
public	Split	( String separator , Int32 count , StringSplitOptions options )	String
public	Split	( String separator , StringSplitOptions options )	String
public	Split	( Char separator , Int32 count )	String
public	Split	( Char separator )	String
public	StartsWith	( String value , StringComparison comparisonType )	Boolean
public	StartsWith	( String value )	Boolean
public	StartsWith	( String value , Boolean ignoreCase , CultureInfo culture )	Boolean
public	Substring	( Int32 startIndex , Int32 length )	String
public	Substring	( Int32 startIndex )	String
public	ToCharArray	( )	Char
public	ToCharArray	( Int32 startIndex , Int32 length )	Char
public	ToLower	( CultureInfo culture )	String
public	ToLower	( )	String
public	ToLowerInvariant	( )	String
public	ToString	( IFormatProvider provider )	String
public	ToString	( )	String
public	ToUpper	( CultureInfo culture )	String
public	ToUpper	( )	String
public	ToUpperInvariant	( )	String
public	Trim	( )	String
public	Trim	( Char trimChars )	String
public	TrimEnd	( Char trimChars )	String
public	TrimStart	( Char trimChars )	String

An instance of String is said to be "immutable" because its value cannot be modified once it has been created. Methods that appear to modify a String instance actually return a new instance containing the modification. Use the StringBuilder class if it is necessary to actually modify the contents of a string-like object.

An "index" is the position of a character within a string, and is counted starting from the first character in the string, which is index position zero. That is, a string index is said to be "zero-based".

Comparison and search procedures are case-sensitive and use the culture associated with the current thread, unless specified otherwise. For more information about the current culture, see the CurrentCulture topic.

By definition, any String, including the empty string ( "" ), compares greater than a null reference; and two null references compare equal to each other.

Use the Compare and Equals methods to perform combined reference and value comparisons of Object and String instances. The equality and inequality relational operators are implemented with the Equals method and can also be used to make reference and value comparisons.

This class implements the IComparable, ICloneable, IConvertible, and IEnumerable interfaces. Use the Convert class for conversions instead of this type's explicit interface member implementation of IConvertible.

IComparable ICloneable IConvertible IEnumerable StringBuilder CultureInfo Formatting Base Types

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