Regex

[TrekBiker]

A VB project I've inherited contains this

Dim [clean_string] As String = Regex.Replace(scanCode, "[^0-9a-zA-Z\> ]+?", "")

I want to replicate this in a new form in the same project but it's giving this error.

Error : Overload resolution failed because no accessible 'Replace' can be called without a narrowing conversion:
'Public Function Replace(input As String, replacement As String, count As Integer) As String': Argument matching parameter 'input' narrows from 'Integer' to 'String'.
'Public Function Replace(input As String, replacement As String, count As Integer) As String': Argument matching parameter 'count' narrows from 'String' to 'Integer'.

What's likely to be missing? I've copied over this line at the start of the code but to no avail.
Imports System.Text.RegularExpressions

 

[jebenson]

This is a strange error, as there is indeed a Regex.Replace method that takes 3 string parameters:

https://msdn.microsoft.com/en-us/library/e7f5w83z(v=vs.110).aspx

Are you sure that scanCode is a string?


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[TrekBiker]

Thanks for response. I created a form with text box Raw so I could check what CleanString produces after entering a value and clicking Button1.

This is the complete code, as far as I got.

Imports System.Text.RegularExpressions

Public Class Form1

    Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
        Dim scanCode As String = Raw.Text
        Dim PCode As String
        Dim CleanString As String = Regex.Replace(scanCode, "[^0-9a-zA-Z\> ]+?", "")
        scanCode = scanCode.Substring(4, scanCode.Length - 4)
        PCode = scanCode
    End Sub

End Class