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Textbox in vb accepts only numbers

P: 36
My textbox accepts only positive numbers.It doesnot accept even floating points also.How to this?I wrote this code
Dim neg As Integer = 0
If (Not IsNumeric(envno.Text)) Or (envno.Text) <= neg Or Then
MsgBox("Please enter Positive numbers only.", vbInformation)
envno.Text = ""

My code accepts floating point numbers.How to do this?
Dec 19 '07 #1
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2 Replies

Expert 5K+
P: 8,127
You need to restrict "." character from user input.
Dec 19 '07 #2

P: 469
try something like this in your keypress:

Expand|Select|Wrap|Line Numbers
  1. if asc(e.keychar) <> "46" then
  2. 'allow
  3. 'code here
  4. end if
Dec 19 '07 #3

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