Expression Validity Tester

I am looking for a cheap or free expression tester for my application. I
have various parts in my application where the user is allowed to freeform
enter an expression and I need a way to ensure the expression is valid so
the program does not error out when it is miskeyed etc.

Any help is appreciated,

Scott

Dan
Mon Jun 27 17:24:59 CDT 2005

Getexpr "Enter Expression" to lcExpr

Dan

Scott Cadreau wrote:
> I am looking for a cheap or free expression tester for my
> application. I have various parts in my application where the user
> is allowed to freeform enter an expression and I need a way to ensure
> the expression is valid so the program does not error out when it is
> miskeyed etc.
>
> Any help is appreciated,
>
> Scott

Bernhard
Tue Jun 28 04:30:50 CDT 2005

Hi Scott

> I am looking for a cheap or free expression tester for my application. I
> have various parts in my application where the user is allowed to freeform
> enter an expression and I need a way to ensure the expression is valid so
> the program does not error out when it is miskeyed etc.
How about the built in functions TYPE() and VARTYPE()?

Regards
Bernhard Sander

Paul
Tue Jun 28 08:09:13 CDT 2005

Why is my _GETEXPR empty? It is set to the empty string in VFP 7, 8, and 9.
There doesn't seem to be anything related in the Tools folder either. Do I
have to write my own?

Yet the expression builder does work in the IDE... where is it coming from
if I can't call it? And why can't I call it?



"Dan Freeman" <spam@microsoft.com> wrote in message
news:OAZYPc2eFHA.760@TK2MSFTNGP10.phx.gbl...
> Getexpr "Enter Expression" to lcExpr
>
> Dan
>
> Scott Cadreau wrote:
>> I am looking for a cheap or free expression tester for my
>> application. I have various parts in my application where the user
>> is allowed to freeform enter an expression and I need a way to ensure
>> the expression is valid so the program does not error out when it is
>> miskeyed etc.
>>
>> Any help is appreciated,
>>
>> Scott
>
>

Fred
Tue Jun 28 12:03:09 CDT 2005

Yes, you can write your own and that's the hook to allow yours to be called
when GETEXPR command is invoked or the expression builder in the IDE.

--
Fred
Microsoft Visual FoxPro MVP


"Paul Pedersen" <no-reply@swen.com> wrote in message
news:OedIYK%23eFHA.3880@tk2msftngp13.phx.gbl...
> Why is my _GETEXPR empty? It is set to the empty string in VFP 7, 8, and
> 9. There doesn't seem to be anything related in the Tools folder either.
> Do I have to write my own?
>
> Yet the expression builder does work in the IDE... where is it coming from
> if I can't call it? And why can't I call it?
>
>
>
> "Dan Freeman" <spam@microsoft.com> wrote in message
> news:OAZYPc2eFHA.760@TK2MSFTNGP10.phx.gbl...
>> Getexpr "Enter Expression" to lcExpr
>>
>> Dan
>>
>> Scott Cadreau wrote:
>>> I am looking for a cheap or free expression tester for my
>>> application. I have various parts in my application where the user
>>> is allowed to freeform enter an expression and I need a way to ensure
>>> the expression is valid so the program does not error out when it is
>>> miskeyed etc.
>>>
>>> Any help is appreciated,
>>>
>>> Scott
>>
>>
>
>

Paul
Tue Jun 28 14:13:14 CDT 2005

Oh. Thanks.

If I haven't needed to write one as long as I've been working with VFP, then
I guess I can do without it for a while longer...



"Fred Taylor" <ftaylor@mvps.org!REMOVE> wrote in message
news:OAwnfMAfFHA.2128@TK2MSFTNGP15.phx.gbl...
> Yes, you can write your own and that's the hook to allow yours to be
> called when GETEXPR command is invoked or the expression builder in the
> IDE.
>
> --
> Fred
> Microsoft Visual FoxPro MVP
>
>
> "Paul Pedersen" <no-reply@swen.com> wrote in message
> news:OedIYK%23eFHA.3880@tk2msftngp13.phx.gbl...
>> Why is my _GETEXPR empty? It is set to the empty string in VFP 7, 8, and
>> 9. There doesn't seem to be anything related in the Tools folder either.
>> Do I have to write my own?
>>
>> Yet the expression builder does work in the IDE... where is it coming
>> from if I can't call it? And why can't I call it?
>>
>>
>>
>> "Dan Freeman" <spam@microsoft.com> wrote in message
>> news:OAZYPc2eFHA.760@TK2MSFTNGP10.phx.gbl...
>>> Getexpr "Enter Expression" to lcExpr
>>>
>>> Dan
>>>
>>> Scott Cadreau wrote:
>>>> I am looking for a cheap or free expression tester for my
>>>> application. I have various parts in my application where the user
>>>> is allowed to freeform enter an expression and I need a way to ensure
>>>> the expression is valid so the program does not error out when it is
>>>> miskeyed etc.
>>>>
>>>> Any help is appreciated,
>>>>
>>>> Scott
>>>
>>>
>>
>>
>
>