# Array question

• ### Question

• User135331403 posted

I have an string of numbers I want to see if a number is in the string. Do I put it in an array? What is the best way to do this

I know this does not work, but you get the idea???

Dim stringVal = "50, 20, 32, 19, 29"
Dim numbers() As Integer = {Int(stringVal)}
Dim index As Integer = Array.IndexOf(numbers, 19) 'returns 3

Monday, August 18, 2008 11:54 AM

### All replies

• User-417784260 posted
Remember the first element in an array is at position 0 so the 4th element is at position 3
Monday, August 18, 2008 12:47 PM
• User135331403 posted
Yes. I know, but it bows up at:

Dim numbers() As Integer = {Int(stringVal)}

I get: Conversion from string "50, 20, 32, 19, 29" to type 'Double' is not valid.

Monday, August 18, 2008 12:54 PM
• User-417784260 posted

If you want to convert to integers you would have to do something like this.

```        Dim stringVal = "50, 20, 32, 19, 29"
Dim strs() = stringVal.Split(","c)
Dim numbers() As Integer
numbers = Array.ConvertAll(strs, New Converter(Of String, Integer)(AddressOf StringToNum))
Debug.Print(Array.IndexOf(numbers, 19).ToString)
End Sub

Public Function StringToNum(ByVal s As String) As Integer
Return CInt(s)
End Function```

Monday, August 18, 2008 1:58 PM
• User-1234877047 posted

No need of an array if you want to find that a number is in a string

Try this

Dim stringVal = "50, 20, 32, 19, 29"

Console.writeLine(stringVal.ToString().Contains("50"))

.contains return boolean, if it finds then true is returned else it returns false

.

Wednesday, August 27, 2008 6:06 AM