C# Discussion Boards - CodeProject

Re: Saving Data from a dynamically created form

2-Jun-23 11:32

Data model looks week. Basically looks like you will need to load everything before using anything and that is seldom a good idea.

Member 13612263 wrote:
In essence I am trying to save the RESULTS of an a user created inspection plan.

That isn't clear. But either you are attempting to manage a reference or you are attempting to provide a meta data model to the user.

For the first when they saved that data there should have been database ids. You use this in this location as the reference.

For the second you will need a at least one new table and perhaps at least a few more to let a user define the parts of a plan. Then reference (ids) those rows in some other table when you save it.

OriginalGriff2-Jun-23 19:56

implementing the system tray for my C# login app

2-Jun-23 19:56

What you are saying doesn't seem to make much sense - it's probably just that you are using terms like "user created" wrongly, or we are misunderstanding what the dataflow is like.

What is sounds like is the user is actually creating columns which need to be added to the database along with the existing columns, rather than adding rows of data which need to be added (which is what usually happens)

What I think you are trying to say is that the user adds data which needs to be stored in tables with existing data, but the user code doesn't have any access to the existing tables so you don't know how to add rows of data to it.
Is that right?

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Shylaja D30-May-23 23:49

Shylaja D

30-May-23 23:49

i have already C# login app code ,so now i need to create the system tray for that login app
so i need to know which library will support for this ,and now i am doing in windows.

Re: implementing the system tray for my C# login app

harold aptroot31-May-23 0:13

harold aptroot

31-May-23 0:13

Shylaja D wrote:
which library will support for this

.NET itself: NotifyIcon Class (System.Windows.Forms) | Microsoft Learn

Hello, I have a question. Can I design programs with a graphical interface in C#, Dot Net Core technology, and these programs work on the DOS operating system, such as Norton Ghost Bragg? Thank you.

Hero2016 Elmaghraby30-May-23 6:39

Hero2016 Elmaghraby

30-May-23 6:39

Hello, I have a question. Can I design programs with a graphical interface in C#, Dot Net Core technology, and these programs work on the DOS operating system, such as Norton Ghost Bragg? Thank you.

Re: Hello, I have a question. Can I design programs with a graphical interface in C#, Dot Net Core technology, and these programs work on the DOS operating system, such as Norton Ghost Bragg? Thank you.

OriginalGriff30-May-23 6:42

30-May-23 6:42

No. DOS does not support .NET, C#, or have a GUI!

Richard Deeming30-May-23 21:07

Richard Deeming

30-May-23 21:07

Unless you could port this project[^] to work on it. Big Grin | :-D

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jschell31-May-23 5:34

31-May-23 5:34

I can't be the only one that is curious to know what "Norton Ghost Bragg" is?

jeron131-May-23 5:43

jeron1

31-May-23 5:43

No, you are not.

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OriginalGriff31-May-23 6:24

31-May-23 6:24

I suspect he means "Norton Ghost[^] Backup" a DOS based app that later moved a Windows front end that created bootable DOS images to do the actual work, apparently.
It finally died from terminal apathy on the market side in 2013. A stake was driven through the source code and it was ritually be-header filed.

We shall not see it's like again. Hopefully.

jschell1-Jun-23 6:11

1-Jun-23 6:11

So they just want to run that automatically?

It has a UI, at least usage examples I saw show that. Which means one can write a C# app to feed UI events to it.

OriginalGriff1-Jun-23 6:26

1-Jun-23 6:26

No, I think he wants to run actual C#, GUI apps under DOS ... Ghost was an abortion of a "conversion" which just provided a Windows front end that generated a bootable DOS floppy to do the backup - Windows was not involved at all by that stage!

C# features

Calin Negru25-May-23 7:31

25-May-23 7:31

I’m writing my main project in c++ but in order to get better at c++ I need to improve my c# skills. My question is what should a person learn after getting comfortable with variables, lists and classes in C#. I remember seeing helper constructs that make certain operations when dealing with lists easier but at that time I could not understand them. What would be your recommendation for let’s say top four things to know after learning the basics in C#?

PIEBALDconsult25-May-23 7:32

PIEBALDconsult

25-May-23 7:32

I doubt that learning C# can help with learning C++.

Calin Negru25-May-23 10:58

25-May-23 10:58

With c# you learn about the type of problems a programmer has to deal with and an easy and friendly way to solve them. I had been alternating from one language to the other since I started programming, this is how I got better at c++.
At the end of the day why I want to improve my c# skills doesn’t matter

OriginalGriff25-May-23 18:33

25-May-23 18:33

If you want to improve your C# skills then randomly asking "what should I learn next" isn't the best way: there is just too much stuff in there.

At it's heart, C# is a pretty simple language, but it's tightly integrated with the .NET framework which is frankly enormous. While variables and classes are part of C#, Lists and such like aren't - they are part of the framework. And while C# and C++ look pretty similar they really aren't, they are very different languages, which can use the same framework but don't have to - C++ doesn't need to use .NET at all!
So "learning C# to get better at C++" isn't really a brilliant idea because you are learning stuff that isn't relevant and may not be transferable.

It may be easier to learn how to think like a developer in C# because it's a lot more forgiving and the .NET framework adds a hugely rich set of support classes but learning specific features isn't the way to do it as they are probably not transferable to "vanilla" C++

What I'd suggest is this: if you want to learn a language then go on a course, or get a book and learn that language. Don't try to learn "X" in the hope it'll make "Y" work as well because it won't - like learning to fly a drone won't teach you to fly a helicopter!
That applies to C# and C++.

Calin Negru26-May-23 0:09

26-May-23 0:09

I understand, C# is not just a beginners language it’s a language used for serious things.
I’m looking to learn the features with a general purpose scope

Gerry Schmitz26-May-23 3:27

Gerry Schmitz

26-May-23 3:27

Then you want to learn "patterns"; not languages.

The architect learns about windows and doors before flying butresses.

"Before entering on an understanding, I have meditated for a long time, and have foreseen what might happen. It is not genius which reveals to me suddenly, secretly, what I have to say or to do in a circumstance unexpected by other people; it is reflection, it is meditation." - Napoleon I

Calin Negru26-May-23 22:11

26-May-23 22:11

A lot of C# features are probably there for dealing with specific tasks ( “link” is for working with databases, etc. ) But I’m sure there are also features useful for any type of project too

>Then you want to learn patterns.

I can’t imagine a learning resource that teaches abstract programming rules.

Gerry Schmitz27-May-23 2:54

Gerry Schmitz

27-May-23 2:54

You don't need wood and bricks to learn about windows.

jschell27-May-23 9:29

27-May-23 9:29

Calin Negru wrote:
“link” is for working with databases, etc.

linq (spelling) was not added to deal with databases. It was added as a result of a surge of interest, or at least perceived interest, in functional programming.

Then someone decided it would be a 'good' idea to use linq to access databases.

They were wrong.

They were not also the first ones to think that a generic in language source would somehow be better for database access. Long before that C++ (or maybe java) had an alternative in the language (sort of) for SQL. But it never took off. Probably for the similar reasons as it made simple problems simpler (which was never a complaint) but complex problems either difficult or even impossible to deal with.

Gerry Schmitz27-May-23 13:28

Gerry Schmitz

27-May-23 13:28

LINQ doesn't "do databases"; it does "data models". The "source" of the model varies: database; objects; XML. An architecture that allows for "new" types of sources. Most issues are due to not understanding the client / server relationship and the purpose of stored procedures.

jschell29-May-23 6:02

29-May-23 6:02

Gerry Schmitz wrote:
LINQ doesn't "do databases"; it does "data models". The "source" of the model varies: database; objects; XML

No idea how that changes what I said.

Gerry Schmitz wrote:
Most issues are due to not understanding the client / server relationship and the purpose of stored procedures.

I can't speak as to the source of of your "most" comment. But I can speak as to the problems I found of which I do not believe any had to do with stored procedures.

Calin Negru28-May-23 4:16