String Functions In VB

String functions are mainly used to manipulate the string in Visual basic.

String functions are mainly used to manipulate the string in Visual basic.

GetChar

Gets the character from the string of particular index number.

GetChar("This is a string", 7)

Above code snippet will return "s".

InStr

Returns the starting position in a string of a substring, counting from 1.

InStr("This is a string", "string")

Above code snippet will returns 11.

InStrRev

Returns the starting position in a string of a substring, searching from the end of the string.

InStrRev("This is a string", "string")

Above code snippet will returns 6.

LCase

Returns the lower-case conversion of a string.

LCase("THIS IS A STRING")

Above code snippet returns "this is a string".

Left

Returns the left-most specified number of characters of a string.

Left("This is a string", 4)

Above code snippet returns "This".

Len

Returns the length of a string.

Len("This is a string")

Above code snippet returns 16.

LTrim

Removes any leading spaces from a string.

LTrim(" This is a string")

Above code snippet returns "This is a string".

Mid

Returns a substring from a string, specified as the starting position (counting from 1) and the number of characters.

Mid("This is a string", 6, 4)

Above code snippet returns "is a".

Replace

Replaces all occurences of a substring in a string.

Replace("This is a string", " s", " longer s")

Above code snippet returns "This are a longer string" (replaces an "s" preceded by a blank space).

Right

Returns the right-most specified number of characters of a string.

Right("This is a string", 6)

Above code snippet returns "string".

RTrim

Removes any trailing spaces from a string.

RTrim("This is a string ")

Above code snippet returns "This is a string".

Str

Returns the string equivalent of a number.

Str(100)

Above code snippet returns "100".

Space

Fills a string with a given number of spaces.

"This" & Space(5) & "string"

Above code snippet returns "This string".

StrComp

Compares two strings. Return values are 0 (strings are equal), 1 (first string has the greater value), or -1 (second string has the greater value) based on sorting sequence.

StrComp("This is a string", "This string")

Above code snippet returns -1.

StrReverse

Reverses the characters in a string.

StrReverse("This is a string")

Above Code snippet returns "gnirts a si sihT".

Trim

Removes any leading and trailing spaces from a string.

Trim(" This is a string ")

Above returns "This is a string".

UCase

Returns the upper-case conversion of a string.

UCase("This is a string")

Above code snippet returns "THIS IS A STRING".

Val

Converts a numeric expression to a number.

Val( (1 + 2 + 3)^2 )

above code snippet returns 36.