form validation

slim

New Member
Joined
Feb 24, 2002
Messages
42
Ok second question of the day.

Can someone tell me the code I need to validate form entry.
I want a message box to appear if someone attempts to submit details(by clicking a button) if they have left a textbox empty (or put the wrong info in).

Thanks
Andy
 

Excel Facts

What did Pito Salas invent?
Pito Salas, working for Lotus, popularized what would become to be pivot tables. It was released as Lotus Improv in 1989.
There's many ways to do this. As a starter you might try stuff like: -

If TextBox1.Text = "" Then MsgBox ....

If Not IsNumeric(TextBox1.Text) Then MsgBox ...

MaxValue = 1000 ' As an example
If TextBox1.Text > MaxValue Then MsgBox ...

Note you can also restrict what people can actually type into a textbox in the first place with the TextBox_Change() Event.
 
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