C#

23-Dec-10 3:41

You should never store the data in a format such as this. Store it in a locale agnostic fashion, and let the front end format the string to the relevant format using a method such as ToShortDateString() on a DateTime.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

Small confusion in Nullable Type

Re: Date Format

PIEBALDconsult23-Dec-10 4:42

PIEBALDconsult

23-Dec-10 4:42

You do that only when you output it, generally with ToString ( "format" ), or you could set the format of your system to do it -- I set mine to use an ISO 8601 format.

Ravi Sant23-Dec-10 0:54

Ravi Sant

23-Dec-10 0:54

Declaring
bool? b = true;

Then,
b.GetType();

should return Nullable or Null?
Why does it has type bool?

I am not clear on this. Your know' will be helpful. Smile | :)

harold aptroot23-Dec-10 1:01

harold aptroot

23-Dec-10 1:01

From http://msdn.microsoft.com/en-us/library/ms366789%28VS.80%29.aspx[^]:

However, if you attempt to obtain type information from Nullable variables at runtime using the GetType method or the is operator, the result is a Type object that represents the underlying type, not the Nullable type itself.

Calling GetType on a Nullable type causes a boxing operation to be performed when the type is implicitly converted to Object. Therefore GetType always returns a Type object that represents the underlying type, not the Nullable type.

Pete O'Hanlon23-Dec-10 2:40

23-Dec-10 2:40

Excellent answer. Clear, concise and accurate - just the kind I like. Thumbs Up | :thumbsup:

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

Ravi Sant23-Dec-10 4:30

Ravi Sant

23-Dec-10 4:30

Good Reply. Thank You Smile | :)

TweakBird23-Dec-10 1:02

TweakBird

23-Dec-10 1:02

RaviSant wrote:
should return Nullable or Null?

return Null

See these links will help you to get idea.

Nullable Types[^]

Using Nullable Types[^]

Hiren solanki23-Dec-10 1:18

Hiren solanki

23-Dec-10 1:18

RaviSant wrote:
b.GetType();

It will return underlying datatype only.

RaviSant wrote:
should return Nullable or Null?

No. It's just prone to accept null values that's it.

Regards,
Hiren.

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What is the code for Credit card no. validation in C#?

Laxman Auti24-Dec-10 20:39

Laxman Auti

24-Dec-10 20:39

RaviSant wrote:
Declaring
bool? b = true;

The intention of nullable types is to allow/accept null value. So when we declare "bool?" then, it is of type "Boolean" and can accept null value.

You can check if the variable has the value by using "HasValue" property of variable. if it is true then get the value of variable using "Value" property.

Knock out 't' from can't, you can if you think you can. Cool | :cool:

Cnu5555522-Dec-10 22:27

Cnu55555

22-Dec-10 22:27

Dear Skilties...

I am doing a project on "SECURE E-COMMERCE" so I need to validate the Credit Cards. Kindly anyone send the code to me.

srinivas96alluri@ymail.com

Re: What is the code for Credit card no. validation in C#?

ScottM122-Dec-10 22:31

ScottM1

22-Dec-10 22:31

Can I have half your profits?

Re: What is the code for Credit card no. validation in C#?

Pete O'Hanlon22-Dec-10 22:48

22-Dec-10 22:48

You've done all the work, it will only be fair that you get all of them.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

Re: What is the code for Credit card no. validation in C#?

OriginalGriff22-Dec-10 22:51

Re: What is the code for Credit card no. validation in C#?

22-Dec-10 22:51

Nah, I assume Shrinvas will be supplying the card numbers...He should get some of the profit for that bit. Oh, and all the risk-of-arrest.

Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together.

OriginalGriff22-Dec-10 22:50

Re: What is the code for Credit card no. validation in C#?

22-Dec-10 22:50

1) Don't post your email to any public forum, unless you really like spam.
2) Don't ask for codez, unless you really want to annoy people.
3) Try googling: many web hosting companies are out there, most of which will be more than happy to help you validate credit cards as part of a ecommerce site. Otherwise, they may assume you are trying to rip people off.

Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together.

ScottM122-Dec-10 23:02

ScottM1

22-Dec-10 23:02

OriginalGriff wrote:
trying to rip people off

I don't think he is going to be very successful at this somehow.

Re: What is the code for Credit card no. validation in C#?

OriginalGriff22-Dec-10 23:05

Re: What is the code for Credit card no. validation in C#?

22-Dec-10 23:05

It's so refreshing to see disorganised crime in the "planning" stages, isn't it? Laugh | :laugh:

Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together.

Pete O'Hanlon22-Dec-10 23:22

22-Dec-10 23:22

I want to know what skilties are. Google Translate tells me that it's Lithuanian for column, but I really doubt that's what he means.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

Re: What is the code for Credit card no. validation in C#?

OriginalGriff22-Dec-10 23:57

22-Dec-10 23:57

From the Oxtail Dictionary of English:

"Skilty : [Skil'ty] (n) A person skilled in technical matters who is also so naive and gullible that he will give out information needed for a small (but ultimately unsuccessful) crime spree if you meet either one of two conditions:
1) You can convince him that this is for a project, rather than for nefarious purposes.
2) You are, or can present yourself as, female."

Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together.

My Vote of 1

Keith Barrow23-Dec-10 1:05

Keith Barrow

23-Dec-10 1:05

I haven't read any of the other answers to this question yet, so let me look into my crystal ball:
Amongst other things, I bet thet say (with varying degrees if politeness):
1. No one is going to write your project/ homework for you.
2. You haven't tried anything yet. If you have tried something, tell us what isn't working
3. Read the site FAQs.
3. If you need to ask this, you shouldn't be playing with security on something as serious as a credit card.

[Edit]
Wrong on points two and three and should have foreseen the easily "google-able" message, better than most psychics at least....

Sort of a cross between Lawrence of Arabia and Dilbert.[^]
-Or-
A Dead ringer for Kate Winslett[^]

Re: My Vote of 1

Pete O'Hanlon23-Dec-10 1:12

23-Dec-10 1:12

You like point 3 so much, you make it twice. Big Grin | :-D

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

Re: My Vote of 1

Keith Barrow23-Dec-10 1:34

Keith Barrow

23-Dec-10 1:34

In an embarring faux pas, I also get it wrong the second time Smile | :)

I shall use <ol> next time, unless I'm being lazy. Oh BTW, I'm not coming home over the festive, that's why I haven't been in touch. We are planning a visit mid-Jan instead.

Sort of a cross between Lawrence of Arabia and Dilbert.[^]
-Or-
A Dead ringer for Kate Winslett[^]

Re: My Vote of 1

Pete O'Hanlon23-Dec-10 1:50

23-Dec-10 1:50

Fair enough. Let me know when, and we'll arrange a get together. It's a shame you haven't been here this week, the lady santas have looked very fine down on the quayside. Ho ho ho.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads