ASP Classic - Type mismatch: 'CInt' - Easy question

Question

Having an issue with type conversion in ASP classic.

heres my code:

        Set trainingCost = Server.CreateObject(\"ADODB.Recordset\")
    strSQL3 =         


        

Answer 1

You have a couple of choices. You can be proactive by checking ahead of time whether the value is numeric using the IsNumeric function:

 If IsNumeric(trainCostStr) Then
    totalTrainCost = totalTrainCost + CInt(trainCostStr)
 Else
    ' Do something appropriate
 End If

...or you can be reactive by using error catching; in Classic ASP probably easiest to define a function and use On Error Resume Next:

Function ConvertToInt(val)
    On Error Resume Next
    ConvertToInt = CInt(val)
    If Err.Number <> 0 Then
        ConvertToInt = Empty
        Err.Clear
    End If
End Function

Or return 0 or Null or whatever suits you, then use it in your trainCost code.

Note that CInt expects an integer and will stop at the first non-digit, so "123.45" comes back as 123. Look at the other conversions, CDouble, CCur, etc.