Question

I have this string 123abc123 how can i get only integers from this string?

For example, convert 123abc123 to 123123.

What i tried:

Integer.Parse(abc)

Answer 1

the right method to extract the integers is using isNumbric function:

Dim str As String = "123abc123"
Dim Res As String
For Each c As Char In str
    If IsNumeric(c) Then
        Res = Res & c
    End If
Next
MessageBox.Show(Res)

another way:

Private Shared Function GetIntOnly(ByVal value As String) As Integer
    Dim returnVal As String = String.Empty
    Dim collection As MatchCollection = Regex.Matches(value, "\d+")
    For Each m As Match In collection
        returnVal += m.ToString()
    Next
    Return Convert.ToInt32(returnVal)
End Function