Articolo
11/17/2011

Strings Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

The Strings module contains procedures used to perform string operations.

Inheritance Hierarchy

System.Object
Microsoft.VisualBasic.Strings

Namespace: Microsoft.VisualBasic
Assembly: Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

Syntax

'Declaration
<StandardModuleAttribute> _
Public NotInheritable Class Strings

[StandardModuleAttribute]
public sealed class Strings

The Strings type exposes the following members.

Methods

	Name	Description
	AscW(Char)	Returns an Integer value representing the character code corresponding to a character.
	AscW(String)	Returns an Integer value representing the character code corresponding to a character.
	ChrW	Returns the character associated with the specified character code.
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Filter(array<Object[], String, Boolean, CompareMethod)	Returns a zero-based array containing a subset of a String array based on specified filter criteria.
	Filter(array<String[], String, Boolean, CompareMethod)	Returns a zero-based array containing a subset of a String array based on specified filter criteria.
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	Format	Returns a string formatted according to instructions contained in a format String expression.
	FormatCurrency	Returns an expression formatted as a currency value using the currency symbol defined in the system control panel.
	FormatDateTime	Returns a string expression representing a date/time value.
	FormatNumber	Returns an expression formatted as a number.
	FormatPercent	Returns an expression formatted as a percentage (that is, multiplied by 100) with a trailing % character.
	GetChar	Returns a Char value representing the character from the specified index in the supplied string.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	InStr(String, String, CompareMethod)	Returns an integer specifying the start position of the first occurrence of one string within another.
	InStr(Int32, String, String, CompareMethod)	Returns an integer specifying the start position of the first occurrence of one string within another.
	InStrRev	Returns the position of the first occurrence of one string within another, starting from the right side of the string.
	Join(array<Object[], String)	Returns a string created by joining a number of substrings contained in an array.
	Join(array<String[], String)	Returns a string created by joining a number of substrings contained in an array.
	LCase(Char)	Returns a string or character converted to lowercase.
	LCase(String)	Returns a string or character converted to lowercase.
	Left	Returns a string containing a specified number of characters from the left side of a string.
	Len	Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable.
	LSet	Returns a left-aligned string containing the specified string adjusted to the specified length.
	LTrim	Returns a string containing a copy of a specified string with no leading spaces (LTrim), no trailing spaces (RTrim), or no leading or trailing spaces (Trim).
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Mid(String, Int32)	Returns a string containing a specified number of characters from a string.
	Mid(String, Int32, Int32)	Returns a string containing a specified number of characters from a string.
	Replace	Returns a string in which a specified substring has been replaced with another substring a specified number of times.
	Right	Returns a string containing a specified number of characters from the right side of a string.
	RSet	Returns a right-aligned string containing the specified string adjusted to the specified length.
	RTrim	Returns a string containing a copy of a specified string with no leading spaces (LTrim), no trailing spaces (RTrim), or no leading or trailing spaces (Trim).
	Space	Returns a string consisting of the specified number of spaces.
	Split	Returns a zero-based, one-dimensional array containing a specified number of substrings.
	StrComp	Returns -1, 0, or 1, based on the result of a string comparison.
	StrDup(Int32, Char)	Returns a string or object consisting of the specified character repeated the specified number of times.
	StrDup(Int32, Object)	Returns a string or object consisting of the specified character repeated the specified number of times.
	StrDup(Int32, String)	Returns a string or object consisting of the specified character repeated the specified number of times.
	StrReverse	Returns a string in which the character order of a specified string is reversed.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	Trim	Returns a string containing a copy of a specified string with no leading spaces (LTrim), no trailing spaces (RTrim), or no leading or trailing spaces (Trim).
	UCase(Char)	Returns a string or character containing the specified string converted to uppercase.
	UCase(String)	Returns a string or character containing the specified string converted to uppercase.

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Remarks

This module supports the Visual Basic language keywords and run-time library members that manipulate strings.

Examples

The following example demonstrates how to split a string at its spaces.

Dim TestString As String = "Look at these!"
' Returns an array containing "Look", "at", and "these!".
Dim TestArray() As String = Split(TestString)

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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