Code for a multiple of 250 and 500

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I am working on a web-portal where my customer can order several products. The product are delivered in a multiple of 1000, 500 and 250. For a multiple of 1000, i have a code (below). For a multiple of 250 and 500, i don't have a code. Can you help me with that?

I use \d*000$ for a multiple of 1000..

I am searching for a code of multiples of 250 and 500

What I have tried:

I use \d*000$ for a multiple of 1000..

I am searching for a code of multiples of 250 and 500

Posted 29-May-16 21:29pm

Member 12554033

Updated 29-May-16 22:32pm

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Richard MacCutchan 30-May-16 3:36am

What sort of code are you talking about? You say this is for a web portal, but you have tagged your question C++. Please edit your question and show some real code that demonstrates what you are trying to do.

Member 12554033 30-May-16 3:37am

Sorry, i am talking about Regex

Sergey Alexandrovich Kryukov 30-May-16 3:43am

The idea of using Regex is wrong, in this case, no matter what you do (the question is not correctly formulated).

Can I assume that you have a text input, and when you use the data entered by the user, you want to check up (validate) the input; it should be some numeric count, multiples of 250, 500, etc.? If so, do exactly that. First, parse it as integer, and if it is parsed, take this integer and check up the value.

—SA

Sergey Alexandrovich Kryukov 30-May-16 3:37am

Sorry, the code is not created by "searching". You need to write this code, using first principles.
What have you tried so far?
—SA

Member 12554033 30-May-16 3:40am

To be honest, i have tried a little. I am using software wich provide me with a box to put in a code to validate with Regex

Sergey Alexandrovich Kryukov 30-May-16 3:43am

Please see my comment above.
—SA

Member 12554033 30-May-16 4:10am

No it is not a text input, it is a portal in which you can order for example a envelope. The envelopes come in order of 250 samples in a box. When you order 300, the site wil not accept it. Only a multiple of 250 samples..

Sergey Alexandrovich Kryukov 30-May-16 4:29am

"In a box" means TextBox, or input element, right? is it something where the user types input, in decimal digits? How is it not text?
—SA

Member 12554033 30-May-16 4:53am

OK, then it is text. The user types digits

Sergey Alexandrovich Kryukov 30-May-16 10:09am

Voilà! And I told you how to validate the input. Any questions?
—SA

Member 12554033 30-May-16 4:11am

Great! Solution 1 works for me. Only for a multiple of 500 it doesn't

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Peter Leow · Accepted Answer · 2016-05-29T22:32:00

Solution 3

Instead of text box, use option controls like dropdown list or radio buttons.
Radio Button or Drop Down List? · Formstack Blog[^]
Google on how to create these web UI.

Posted 29-May-16 22:32pm

Peter Leow

Updated 29-May-16 22:33pm

v2

Comments

Member 12554033 30-May-16 4:47am

This is an option that works for me. Only when the product is available in quantities of 40.000, the dropdown list is to large

Peter Leow 30-May-16 4:57am

You cited an example "The envelopes come in order of 250 samples in a box. When you order 300, the site wil not accept it. Only a multiple of 250 samples.."
My question is why do you allow users to enter invalid number like 300 (with or without knowing that each box must contain 250 samples). If there are certain fix quantity in each box of product, state it upfront, then the users only need to enter the number of boxes that he/she want.
What do you think?

Member 12554033 30-May-16 5:29am

That is Right. Ik Think that is possible. The codes in solution 1 workes fine for me

OriginalGriff · Accepted Answer · 2016-05-29T21:42:00

Solution 1

To start with, if you want to work with Regexes, then get a copy of Expresso[^] - it's free, and it examines and generates Regular expressions.

In this case try:

\d*(0{3}|250|500|750)$

Or

\d*(000|250|500|750)$

Posted 29-May-16 21:42pm

OriginalGriff

Updated 29-May-16 21:43pm

v2

Comments

Member 12554033 30-May-16 4:46am

Great! Solution 1 works for me. Only for a multiple of 500 it doesn't

OriginalGriff 30-May-16 5:02am

Strange: I checked it in Expresso for all of them.
What values did you check for 500's?

Member 12554033 30-May-16 5:30am

Ik have already solved it with: \d*(0{3}|500)

OriginalGriff 30-May-16 5:43am

Ah! I see what you mean! :laugh:

Member 12554033 30-May-16 5:31am

Thank you very much!

OriginalGriff 30-May-16 5:43am

You're welcome!