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Methods of the String Class in vb.net

Methods of the String Class in vb.net

string class

string class

S.N Method Name & Description
1 Public Shared Function Compare ( strA As String, strB As String ) As Integer 
Compares two specified string objects and returns an integer that indicates their relative position in the sort order.
2 Public Shared Function Compare ( strA As String, strB As String, ignoreCase As Boolean ) As Integer 
Compares two specified string objects and returns an integer that indicates their relative position in the sort order. However, it ignores case if the Boolean parameter is true.
3 Public Shared Function Concat ( str0 As String, str1 As String ) As String 
Concatenates two string objects.
4 Public Shared Function Concat ( str0 As String, str1 As String, str2 As String ) As String 
Concatenates three string objects.
5 Public Shared Function Concat ( str0 As String, str1 As String, str2 As String, str3 As String ) As String 
Concatenates four string objects.
6 Public Function Contains ( value As String ) As Boolean 
Returns a value indicating whether the specified string object occurs within this string.
7 Public Shared Function Copy ( str As String ) As String 
Creates a new String object with the same value as the specified string.
8 pPublic Sub CopyTo ( sourceIndex As Integer, destination As Char(), destinationIndex As Integer, count As Integer ) 
Copies a specified number of characters from a specified position of the string object to a specified position in an array of Unicode characters.
9 Public Function EndsWith ( value As String ) As Boolean 
Determines whether the end of the string object matches the specified string.
10 Public Function Equals ( value As String ) As Boolean 
Determines whether the current string object and the specified string object have the same value.
11 Public Shared Function Equals ( a As String, b As String ) As Boolean 
Determines whether two specified string objects have the same value.
12 Public Shared Function Format ( format As String, arg0 As Object ) As String 
Replaces one or more format items in a specified string with the string representation of a specified object.
13 Public Function IndexOf ( value As Char ) As Integer 
Returns the zero-based index of the first occurrence of the specified Unicode character in the current string.
14 Public Function IndexOf ( value As String ) As Integer 
Returns the zero-based index of the first occurrence of the specified string in this instance.
15 Public Function IndexOf ( value As Char, startIndex As Integer ) As Integer 
Returns the zero-based index of the first occurrence of the specified Unicode character in this string, starting search at the specified character position.
16 Public Function IndexOf ( value As String, startIndex As Integer ) As Integer 
Returns the zero-based index of the first occurrence of the specified string in this instance, starting search at the specified character position.
17 Public Function IndexOfAny ( anyOf As Char() ) As Integer 
Returns the zero-based index of the first occurrence in this instance of any character in a specified array of Unicode characters.
18 Public Function IndexOfAny ( anyOf As Char(), startIndex As Integer ) As Integer 
Returns the zero-based index of the first occurrence in this instance of any character in a specified array of Unicode characters, starting search at the specified character position.
19 Public Function Insert ( startIndex As Integer, value As String ) As String 
Returns a new string in which a specified string is inserted at a specified index position in the current string object.
20 Public Shared Function IsNullOrEmpty ( value As String ) As Boolean 
Indicates whether the specified string is null or an Empty string.
21 Public Shared Function Join ( separator As String, ParamArray value As String() ) As String 
Concatenates all the elements of a string array, using the specified separator between each element.
22 Public Shared Function Join ( separator As String, value As String(), startIndex As Integer, count As Integer ) As String 
Concatenates the specified elements of a string array, using the specified separator between each element.
23 Public Function LastIndexOf ( value As Char ) As Integer 
Returns the zero-based index position of the last occurrence of the specified Unicode character within the current string object.
24 Public Function LastIndexOf ( value As String ) As Integer 
Returns the zero-based index position of the last occurrence of a specified string within the current string object.
25 Public Function Remove ( startIndex As Integer ) As String 
Removes all the characters in the current instance, beginning at a specified position and continuing through the last position, and returns the string.
26 Public Function Remove ( startIndex As Integer, count As Integer ) As String 
Removes the specified number of characters in the current string beginning at a specified position and returns the string.
27 Public Function Replace ( oldChar As Char, newChar As Char ) As String 
Replaces all occurrences of a specified Unicode character in the current string object with the specified Unicode character and returns the new string.
28 Public Function Replace ( oldValue As String, newValue As String ) As String 
Replaces all occurrences of a specified string in the current string object with the specified string and returns the new string.
29 Public Function Split ( ParamArray separator As Char() ) As String() 
Returns a string array that contains the substrings in the current string object, delimited by elements of a specified Unicode character array.
30 Public Function Split ( separator As Char(), count As Integer ) As String() 
Returns a string array that contains the substrings in the current string object, delimited by elements of a specified Unicode character array. The int parameter specifies the maximum number of substrings to return.
31 Public Function StartsWith ( value As String ) As Boolean 
Determines whether the beginning of this string instance matches the specified string.
32 Public Function ToCharArray As Char()
Returns a Unicode character array with all the characters in the current string object.
33 Public Function ToCharArray ( startIndex As Integer, length As Integer ) As Char() 
Returns a Unicode character array with all the characters in the current string object, starting from the specified index and up to the specified length.
34 Public Function ToLower As String
Returns a copy of this string converted to lowercase.
35 Public Function ToUpper As String
Returns a copy of this string converted to uppercase.
36 Public Function Trim As String
Removes all leading and trailing white-space characters from the current String object.

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