Solved

check for numerical entry

Posted on 2014-01-15
4
187 Views
Last Modified: 2014-01-15
I have a vb6 form.  In one of the fields, I would like the user to enter the number of hours.  ie.  1, 1.5, 2, 2.5, etc...

How can I verify that they are entering a numerical entry with two decimal places max?
0
Comment
Question by:al4629740
  • 3
4 Comments
 
LVL 76

Expert Comment

by:GrahamSkan
ID: 39783964
You can check the text with this function:
Function Validate(strText As String) As Boolean
    If IsNumeric(strText) Then
        If UBound(Split(strText, ".")) = 1 Then
            If Len(Split(strText, ".")(1)) > 2 Then
                Exit Function
            End If
        End If
        Validate = True
    End If
End Function

Open in new window

0
 
LVL 76

Accepted Solution

by:
GrahamSkan earned 500 total points
ID: 39783979
This shows one way to use the function:
Option Explicit

Private Sub Text1_LostFocus()
    If Not Validate(Text1.Text) Then
        MsgBox "Invalid entry"
    End If
End Sub
Function Validate(strText As String) As Boolean
    If IsNumeric(strText) Then
        If UBound(Split(strText, ".")) = 1 Then
            If Len(Split(strText, ".")(1)) > 2 Then
                Exit Function
            End If
        End If
        Validate = True
    End If
End Function

Open in new window

0
 

Author Closing Comment

by:al4629740
ID: 39784052
Is there a way to ask a specific Expert when it comes asking questions on experts exchange?
0
 
LVL 76

Expert Comment

by:GrahamSkan
ID: 39784296
You can always ask in the question, but it is positively discouraged for good reason

The expert might not be around at the time, so the question could go unanswered. Also each question should be self-contained, and not rely on knowledge of the questioner's project that is not apparent in the question.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you have ever used Microsoft Word then you know that it has a good spell checker and it may have occurred to you that the ability to check spelling might be a nice piece of functionality to add to certain applications of yours. Well the code that…
Most everyone who has done any programming in VB6 knows that you can do something in code like Debug.Print MyVar and that when the program runs from the IDE, the value of MyVar will be displayed in the Immediate Window. Less well known is Debug.Asse…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question