Re: double.tryparse() - C# Discussion Boards

Eddy Vluggen9-Jul-13 3:03

9-Jul-13 3:03

You already mentioned that. I did (and will not) post a solution; there's a question that needs to be answered to find out what might be going wrong. If you are having trouble with the language, try and find someone who can help.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

Developing a Point of Sale System for Reataurant/Hotel

MohdWaseem8-Jul-13 3:46

MohdWaseem

8-Jul-13 3:46

I started to develop a Point of sale system for Restaurant/Hotel which also include a facility of sms confirmation for customers for home delivery etc.
I think first we need a thermal printer for bills slips etc,
Please give some ideas how to start the project and what types of packages or tools used.

I use .Net C# as a developer.

modified 8-Jul-13 12:56pm.

Re: Developing a Point of Sale System for Reataurant/Hotel

Manfred Rudolf Bihy8-Jul-13 4:46

Manfred Rudolf Bihy

8-Jul-13 4:46

This forum is supposed to be used to get people help you with with programming issues and not to collect (rip off) ideas/requirements from us.
If you are indeed developing something like that, you should come with these ideas yourself. You might even ask your potential customers for ideas if you can't come with anything by yourself.

Regards,

— Manfred

"I had the right to remain silent, but I didn't have the ability!"

Ron White, Comedian

Re: Developing a Point of Sale System for Reataurant/Hotel

Dave Kreskowiak8-Jul-13 5:18

Dave Kreskowiak

8-Jul-13 5:18

Well, you START by gathering very detailed requirements from your customer. They're the ones paying you and they're the ones who will dictate what they want, in detail. If they don't get what they want, you don't get paid, so make sure THEY know what they want.

Really, this is a question that you should NEVER have to ask in a forum.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Developing a Point of Sale System for Reataurant/Hotel

Walt Dexter8-Jul-13 7:21

Walt Dexter

8-Jul-13 7:21

I agree completely with the other responses - you need to gather requirements from your users to know what to build.

A restaurant and a hotel are really completely different businesses. The restaurant may include both what you think of as "point of sale" as well as kitchen systems - printers and screens, mostly - to facilitate the preparation of the food. The hotel presumably needs to be able to deal with reservations, credit card pre-approval, and incidental charges (movies, meals, crap from the little store most hotels have).

There are probably existing hotel systems that include modules for running in-house restaurants, but I would think that the only real integration point would be managing to bill meals back to the guest's room.

The bottom line is that you need to gather detailed requirements for what they want, and you need to understand WHY they're hiring someone to write a system when there are no doubt quite mature systems available for purchase. What do they think is unique about their operation?

If you're a general consultant as opposed to a coder for hire, the right thing for you to do is probably find an existing package that meets their needs, and try to get a fee from them or the vendor for helping the two of them get it going.

If you're going forward with writing something once you have requirements, you should be looking at Microsoft's Point Of Sale for .Net. It's a .Net implementation of the OPOS standard to make dealing with the specialized POS hardware easier.

Point of Sale is its own unique little niche market, and if you're not generally familiar with it (and you're clearly not) you may want to just steer clear.

Re: Developing a Point of Sale System for Reataurant/Hotel

Bernhard Hiller8-Jul-13 23:12

Bernhard Hiller

8-Jul-13 23:12

You really have to learn basics. "thermal printer" is nothing important for the project.
Learn some programming and design, e.g. with the book "Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and Iterative Development" by Craig Larman. An example used in that book is a POS, too.

Message Closed

7-Jul-13 11:28

User3490

7-Jul-13 11:28

Message Closed

Re: double.tryparse()

Garth J Lancaster7-Jul-13 12:33

Garth J Lancaster

7-Jul-13 12:33

iirc correctly, that means you'd have to get the result from your table as a string - which depends on how the table/schema is defined (you dont show this)

Assuming you can get the value as a string, then

String strbranchExposureFactor = [value from DB]
Double branchExposureFactor = 0.0;
if (Double.TryParse(strbranchExposureFactor, out branchExposureFactor))
// Value is Good 
else
// Value is Bad/?Out Of Range...

Disclaimer : ok, Im not endorsing the 'str' prefix (whats this, Hungarian notation ?) for the String variable, use whatever your conventions dictate/allow

btw

http://msdn.microsoft.com/en-us/library/3s27fasw.aspx[^]

and

http://stackoverflow.com/questions/586436/double-tryparse-or-convert-todouble-which-is-faster-and-safer[^]

'g'

Re: double.tryparse()

Mycroft Holmes7-Jul-13 13:06

Mycroft Holmes

7-Jul-13 13:06

You are really struggling with these basic concepts aren't you. Get a book and work through ALL the examples it will be ultimately quicker that repeatedly asking the same questions in a support forum. As answered the other day.

object oResult = (cmd_BranchExposureFactor.ExecuteScalar();

Now you can look at the content of oResult in your debugger to give you an idea what it contains. As Garth said it is probably a string, empy or null. Now you can deal with it!

Never underestimate the power of human stupidity
RAH

Manish Kumar1234567-Jul-13 9:56

Manish Kumar123456

7-Jul-13 9:56

can we use both two method of connection string in web.config file
1.appsetting
2.connection string?

Re: C#

Pete O'Hanlon7-Jul-13 10:45

Pete O'Hanlon

7-Jul-13 10:45

Yes. Ultimately it's just a string. The application provides the context.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Re: C#

Jay Nardev7-Jul-13 20:18

Jay Nardev

7-Jul-13 20:18

You can use below code to get both value.

AppSettings["KeyName"].ToString();
ConfigurationManager.ConnectionStrings["connectionName"].ConnectionString;

Re: C#

Amol_B7-Jul-13 20:56

Amol_B

7-Jul-13 20:56

Yes

how to read html

badalsngh27-Jul-13 7:36

badalsngh2

7-Jul-13 7:36

I have html page and i want get data from it like we get it from data set.means on basis of some valus i want perticular result.
is possible to fileter it.
i know how to read it but i don't know how get row by row data. or some pertocular data, doing it throgh is realy tough .
i want to know if any other way is there.

Re: how to read html

Mycroft Holmes7-Jul-13 13:00

Mycroft Holmes

7-Jul-13 13:00

It will be easier to research [^] existing result to the common question.

Never underestimate the power of human stupidity
RAH

Re: how to read html

Thomas Daniels7-Jul-13 20:45

Thomas Daniels

7-Jul-13 20:45

Hi,

You can parse HTML using the Html Agility Pack[^]

The quick red ProgramFOX jumps right over the Lazy<Dog>.

My latest article: Understand how bitwise operators work (C# and VB.NET examples)

My group: C# Programmers Group

Re: how to read html

karthiksruby@1238-Jul-13 4:20

karthiksruby@123

8-Jul-13 4:20

You need to do it in client side? Use javascript. getElementByTagName(Table) etc. many things are there. You can make variables of table also in javascript. Then you can process what ever need at there. It will be work around only. But you can do.

If you are aiming html of other websites i have very less knowledge only. But i think you can use webbrowser control of visual studio which can(Not sure) inject scripts to a webpage

Thanking you
Binesh Nambiar C

C# Multiple connectionstring

User34907-Jul-13 5:13

User3490

7-Jul-13 5:13

can i have 2 connection string and two connections in 2 different databases because i have an error that say
no database specified or IN clause

Re: C# Multiple connectionstring

NotPolitcallyCorrect7-Jul-13 5:34

NotPolitcallyCorrect

7-Jul-13 5:34

zebra88 wrote:
can i have 2 connection string and two connections

Yes, yes you can

Re: C# Multiple connectionstring

User34907-Jul-13 6:35

User3490

7-Jul-13 6:35

why i have the error no database specified in connection string or in clause i make the same steps that i make with my previous connection with access db and connection string

Re: C# Multiple connectionstring

NotPolitcallyCorrect7-Jul-13 6:52

NotPolitcallyCorrect

7-Jul-13 6:52

zebra88 wrote:
why i have the error

I would have no idea why you are getting that error. Through some strange circumstance, I cannot see your code, your project or read your mind and you have not provided any relevant information that would allow anyone to know what it is that you are trying to do and what you have done.

Re: C# Multiple connectionstring

Richard MacCutchan7-Jul-13 7:25

Richard MacCutchan

7-Jul-13 7:25

It's a guessing game[^].

Use the best guess

Re: C# Multiple connectionstring

NotPolitcallyCorrect7-Jul-13 10:17

NotPolitcallyCorrect

7-Jul-13 10:17

Richard MacCutchan wrote:
It's a guessing game

Ah, thanks.... I guess I will stop feeding him.

Re: C# Multiple connectionstring

karthiksruby@1238-Jul-13 4:27

karthiksruby@123

8-Jul-13 4:27

Surely its possible to connect multiple database in same project/Single database in multiple projects and multiple databases in multiple projects. Your issue is some thing else. I googled it and i got a page like this. http://office.microsoft.com/en-in/access-help/HV080760652.aspx

Re: C# Multiple connectionstring

NotPolitcallyCorrect8-Jul-13 5:00

NotPolitcallyCorrect

8-Jul-13 5:00

karthiksruby@123 wrote:
Your issue

What issue is it that you are referring to? I am not having any issues connecting to any database.

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