Strings.Replace(String, String, String, Int32, Int32, CompareMethod) Strings.Replace(String, String, String, Int32, Int32, CompareMethod) Strings.Replace(String, String, String, Int32, Int32, CompareMethod) Method


Returns a string in which a specified substring has been replaced with another substring a specified number of times.

public static string Replace (string Expression, string Find, string Replacement, int Start = 1, int Count = -1, Microsoft.VisualBasic.CompareMethod Compare = Microsoft.VisualBasic.CompareMethod.Binary);
static member Replace : string * string * string * int * int * Microsoft.VisualBasic.CompareMethod -> string
Public Function Replace (Expression As String, Find As String, Replacement As String, Optional Start As Integer = 1, Optional Count As Integer = -1, Optional Compare As CompareMethod = Microsoft.VisualBasic.CompareMethod.Binary) As String


String String String

Required. String expression containing substring to replace.

String String String

Required. Substring being searched for.

String String String

Required. Replacement substring.

Int32 Int32 Int32

Optional. Position within Expression that starts a substring used for replacement. The return value of Replace is a string that begins at Start, with appropriate substitutions. If omitted, 1 is assumed.

Int32 Int32 Int32

Optional. Number of substring substitutions to perform. If omitted, the default value is -1, which means "make all possible substitutions."

CompareMethod CompareMethod CompareMethod

Optional. Numeric value indicating the kind of comparison to use when evaluating substrings. See Settings for values.


Replace returns the following values.

If Replace returns
Find is zero-length or Nothing Copy of Expression
Replace is zero-length Copy of Expression with no occurrences of Find
Expression is zero-length or Nothing, or Start is greater than length of ExpressionNothing
Count is 0 Copy of Expression



This example demonstrates the Replace function.

Dim TestString As String = "Shopping List"  
' Returns "Shipping List".  
Dim aString As String = Replace(TestString, "o", "i")  


The return value of the Replace function is a string that begins at the position specified by Start and concludes at the end of the Expression string, with the substitutions made as specified by the Find and Replace values.

The Compare argument can have the following values.

Constant Description
Binary Performs a binary comparison
Text Performs a textual comparison

Applies to

See also