text box calculation

[Amanda]

Help,

I am new to visual basic programming and I was wondering how to allow a
textbox
to do a calculation by pressing enter

ie I want to type the following into a textbox 25.2 * 2 press enter on the
keyboard
and the textbox to display 50.4 Any Ideas ???????

[Hal Rosser]

Re: text box calculation

check out the keypress event
you'll see "keyascii" is given as an arg
keyascii is a number representing the ascii code of the key pressed.
that should get you started

"Amanda" <bonni@bonzai.c o.uk> wrote in message
news:41f131ce_2 @mk-nntp-2.news.uk.tisca li.com...[color=blue]
> Help,
>
> I am new to visual basic programming and I was wondering how to allow a
> textbox
> to do a calculation by pressing enter
>
> ie I want to type the following into a textbox 25.2 * 2 press enter on[/color]
the[color=blue]
> keyboard
> and the textbox to display 50.4 Any Ideas ???????
>
>[/color]

[preben nielsen]

Re: text box calculation


"Hal Rosser" <hmrosser@bells outh.net> skrev i en meddelelse
news:dbmId.2865 0$SK6.5469@bign ews3.bellsouth. net...[color=blue]
> check out the keypress event
> you'll see "keyascii" is given as an arg
> keyascii is a number representing the ascii code of the key
> pressed.
> that should get you started[/color]

How should that solve his problem ? He's looking for Expression
Evaluator code.


--
/\ preben nielsen
\/\ prel@post.tele. dk

[Steve Gerrard]

Re: text box calculation


"Amanda" <bonni@bonzai.c o.uk> wrote in message
news:41f131ce_2 @mk-nntp-2.news.uk.tisca li.com...
| Help,
|
| I am new to visual basic programming and I was wondering how to allow
a
| textbox
| to do a calculation by pressing enter
|
| ie I want to type the following into a textbox 25.2 * 2 press enter
on the
| keyboard
| and the textbox to display 50.4 Any Ideas ???????
|
|

Do you have the Microsoft Script Control in your list of components? If
so, then add one to your form. You then just need this simple event
handler:

Private Sub Text1_KeyPress( KeyAscii As Integer)
If KeyAscii = vbKeyReturn Then
On Error Resume Next
Text1.Text = ScriptControl1. Eval(Text1.Text )
End If
End Sub

You might want to make Text1 multi-line, so you don't get a beep when
you press enter.

[Hal Rosser]

Re: text box calculation


"preben nielsen" <prel@post.tele .dk> wrote in message
news:41f203bd$0 $17517$edfadb0f @dread14.news.t ele.dk...[color=blue]
>
> "Hal Rosser" <hmrosser@bells outh.net> skrev i en meddelelse
> news:dbmId.2865 0$SK6.5469@bign ews3.bellsouth. net...[color=green]
> > check out the keypress event
> > you'll see "keyascii" is given as an arg
> > keyascii is a number representing the ascii code of the key
> > pressed.
> > that should get you started[/color]
>
> How should that solve his problem ? He's looking for Expression
> Evaluator code.[/color]

Did I say it would "solve his problem" ? no - I said it shouild get him
started.
I know its unheard of in some circles - but its a starting point for the OP
to "Write Code" that will evaluate the expression.

[Martin]

Re: text box calculation

Many thanks for the tip Steve, it works a dream.

Regards

Martin

"Steve Gerrard" <mynamehere@com cast.net> wrote in message
news:oeWdnYdvTt cSuW_cRVn-gw@comcast.com. ..[color=blue]
>
> "Amanda" <bonni@bonzai.c o.uk> wrote in message
> news:41f131ce_2 @mk-nntp-2.news.uk.tisca li.com...
> | Help,
> |
> | I am new to visual basic programming and I was wondering how to allow
> a
> | textbox
> | to do a calculation by pressing enter
> |
> | ie I want to type the following into a textbox 25.2 * 2 press enter
> on the
> | keyboard
> | and the textbox to display 50.4 Any Ideas ???????
> |
> |
>
> Do you have the Microsoft Script Control in your list of components? If
> so, then add one to your form. You then just need this simple event
> handler:
>
> Private Sub Text1_KeyPress( KeyAscii As Integer)
> If KeyAscii = vbKeyReturn Then
> On Error Resume Next
> Text1.Text = ScriptControl1. Eval(Text1.Text )
> End If
> End Sub
>
> You might want to make Text1 multi-line, so you don't get a beep when
> you press enter.
>
>[/color]

[Nicola]

Re: text box calculation

Thank you Steve it works flawlessly.

"Steve Gerrard" <mynamehere@com cast.net> wrote in message
news:oeWdnYdvTt cSuW_cRVn-gw@comcast.com. ..[color=blue]
>
> "Amanda" <bonni@bonzai.c o.uk> wrote in message
> news:41f131ce_2 @mk-nntp-2.news.uk.tisca li.com...
> | Help,
> |
> | I am new to visual basic programming and I was wondering how to allow
> a
> | textbox
> | to do a calculation by pressing enter
> |
> | ie I want to type the following into a textbox 25.2 * 2 press enter
> on the
> | keyboard
> | and the textbox to display 50.4 Any Ideas ???????
> |
> |
>
> Do you have the Microsoft Script Control in your list of components? If
> so, then add one to your form. You then just need this simple event
> handler:
>
> Private Sub Text1_KeyPress( KeyAscii As Integer)
> If KeyAscii = vbKeyReturn Then
> On Error Resume Next
> Text1.Text = ScriptControl1. Eval(Text1.Text )
> End If
> End Sub
>
> You might want to make Text1 multi-line, so you don't get a beep when
> you press enter.
>
>[/color]

[Steve Gerrard]

Re: text box calculation


"Nicola" <bonni@bonzai.c o.uk> wrote in message
news:42139d4a_4 @mk-nntp-2.news.uk.tisca li.com...
| Thank you Steve it works flawlessly.
|

You are welcome. Hopefully you weren't in a hurry :)