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

Reference

Definition

Namespace:: Microsoft.VisualBasic

Assembly:: Microsoft.VisualBasic.Core.dll

Assembly:: Microsoft.VisualBasic.dll

Source:: Strings.vb

Source:: Strings.vb

Source:: Strings.vb

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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);

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

Parameters

Expression: String

Required. String expression containing substring to replace.

Find: String

Required. Substring being searched for.

Replacement: String

Required. Replacement substring.

Start: 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.

Count: Int32

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

Compare: CompareMethod

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

Returns

String

One of 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 `Expression`	`Nothing`
`Count` is 0	Copy of `Expression`

Exceptions

ArgumentException

Count < -1 or Start <= 0.

Examples

This example demonstrates the Replace function.

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

Remarks

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

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