Comments by Member 11072126 (Top 52 by date)

Okay. Actually, here I have tried to replicate the actual scenario using Employee and Address example.
In real project, the requirement is something where I need to clone the records and the entity has related entities, those also need to be cloned and saved in the database. Once the user clicks a button, that particular item will be cloned and also saved into the database directly.
We are using EF as ORM tool.

I was wrong. Yes it was NULL.
So, is this the way we should create clone of all child objects and now if I have to save then I will have to call "Primary Adress saveChanges() too isn't it?

No its not Null, but I think since clone() returns an object of PrimaryAddress type and testObj.PrimaryAddress is a reference, is it because of that its not setting and throwing ""Object reference not set to an instance of an object." error

Hi, I tried the below way and am getting "Object reference not set to an instance of an object."

EmployeeEntity cloneTestObj = testObj.Clone();
cloneTestObj.Id = 0;
cloneTestObj.EmployeeName = "Agnib";

// throwing Null exception
cloneTestObj.PrimaryAddress = (PrimaryAddressEntity)testObj.PrimaryAddress.Clone();
AddEmployee(cloneTestObj);

Secondly, PrimaryAddress contain the EmployeeId, so unless I add a clone of an employee, I cannot get the EmployeeId and then how can I set the EmployeeId to Primary and Secondary address entities.

Can you please share me something as how to clone those properties from the Employee clone method itself? Thanks.

Thanks for the response.
So, it means I need to clone separately those two child objects as I did for the Employee class? This came to my mind earlier.

But, am fetching the Employee records and applying "include" over there to fetch all the related objects too. Then why "include" is not working?

@Richard Deeming
Hi, I read through sendBeacon() and what I understood is that this is used to send some data on page unload. In my case, am able to update data in my database using fetch but cannot be able to end the session on browser close. since am using SAML authentication, so the session is being created by them and I cannot be able to end the session on browser close.

Thanks @Richard - I will try this and let you know if it works.

Hi, Thanks for the response.
I have updated my question and posted the html and ts file. I am trying to put the focus on a dropdown item, on page load. Am not sure but do I need to add any pther properties for form element, to make this thing work out?
Or does it work with "mat-Input" attribues only?

Thanks. It worked. Understood why arrow function was required.

Hi Sandeep, I found the issue. Now the callback url is working.
But, I have a callback component and i was expecting it will hit that component (wrote some code on ngInit of Callback component TS file). The control is not hitting there and moving directly to home page.
Do I need to set anything else which am missing out?

Actually serverless is a concept. When I was creating a Aurora DB using AWS Console UI, I saw while setting endpoints, there are two options, one of them was "Serverless".

It means, AWS will autoscale and auto shut down or start the DB as and when required. We don't need to manage it explicitly.

Thanks.

ok. thanks for your support.

A comboBox is being used which is of this library. Its a legacy application. Regarding the support link, they are not entertaining any question unless I provide a valid registration number and I don't have it.

I cannot be able to register there. Always throwing error while registration. Don't know why?
Anyways, have you worked on this BCGP controls? Then you can give an idea.

Ok. So, why these environment variables need to be set by running these batch files, for C++ application?

This is MFC code

Well, actually I learnt C++ in my college days and now when I got this project, I simply considered it as C++. I didn't have any idea about CLI or pure C++.

Thanks Richard for your response.
Regarding your doubt about why using vsvars32.bat as post-build event, honestly I have no idea as well and so started researching on this.

So, what I understood as of now is that if I build using Visual Studio Build option then I do not need to run this Post-Build event. If I am using any other IDE like Visual Studio Code or any other IDE who doesn't have in-built C++ compiler and configuration options (Build or Release) and also platform setting options, for those cases, we can use calling vsvars32.bat or vsdevcmd.bat to setup these platform and environment settings.

Regarding your last question, I feel its C++/CLI.

Okay. Thanks to all for your responses.
Let me share the updates what I tried more and what I found:
1. I got the project files into repository by cloning git link and also created pipelines but the build is getting failed saying "cannot find solution file", which is quite natural because I had added the .gitignore file within the project folder (C:/Projects/WinFormsProj/WinFormsProj/) whereas the solution file is located in the path -> (C:/Projects/WinFormsProj/WinFormsProj.sln)

2. So, I thought of creating .gitignore file in the path (C:/Projects/WinFormsProj/) where the solution file resides. First of all, this time I created .gitignore file from Azure Devops repos section, but cannot find the file anywhere into my project folder. Secondly, when am trying to run the command "git add .", it is throwing errors:
error: open(".vs/WinFormsProj/v15/Server/sqlite3/db.lock"): Permission denied
error: unable to index file '.vs/WinFormsProj/v15/Server/sqlite3/db.lock'
fatal: adding files failed

Am not understanding the exact steps need to be done for this repository part and not even getting any proper tutorial for this too.

In repos section I need to choose the repository path, where it is asking me to choose any GIT repository path. So, how to link my VS project folder to this repository GIT path?

Thanks @CPallini for the response. Even Griff also told the same.

Yes. I knew that. Consider, I have only one interface with few methods. In that case, I can always create a pure abstract class and get my job done. Isn't it?
Then there must be some other reason too why to use interface and not pure abstract class or vice-versa.
It could be related to builds or implementation or security whatever.
I am thinking from all aspects actually.
Please let me know if you also can find out some other points.
Thanks a lot.

Hi, thanks for your response. But, i know about the multiple inheritence thing and i know that interface can solve it.
I wanted to know anything except multiple inheritence.

Yes. Correct.
Anyways, thank you all for your responses. Its been done. I created an action method inside a Controller and pointing ajax call to that.

Yes. I also know the same. We cannot call any method from a .cs file. I know how to call any action method in the controller. Thank you very much.

Ok. Thanks. So, MVC internally follows Factory Design Pattern? Can you suggest any article if I would like to know hoe MVC works internally? I mean, when the request is coming, which interface or class it is calling internally and all these concepts

Thanks for your response Afzaal. There is no such need for me to pass the parameter in the constructor. I was just thinking about this because I thought that it is also a class and if I can pass any parameter through the constructor or not?
If I can pass then how it will be invoked unless I pass any value into the constructor.
But, we don't create any object of the controller explicitly, the controller and actions are called on the basis of my routing path.
So, is it possible to create any parameterized constructor in controller? if yes, how to invoke it and if No, then why?

Still having some doubts. But, anyways thanks to you and Kornfeld for your responses and explanations. It was definitely useful.

Yes, I have read various articles. But, the only valid point am getting is that I for interfaces, I can be implement multiple interfaces but not possible with abstract class. The other points, when analyzed, can be seen that the same thing is possible for both abstract class and interface.

Thanks. But, I didn't get the advantage of using abstract class over interface.
Suppose, I have an interface named as "ITransact", and it contains a method named as "respModel Show(reqModel)", its taking the requestObject as argument and sending back the responseObject.
Now, the same method can be written as abstract method in an abstract class and I can use inherit the abstract class instead of implementing the interface.

Yes, of course I can't use inherit more than one class but can implement multiple interfaces. Except this point, is there any other major advantages of using interface?

Thanks. I completely agree with you that I can reuse the same interface for many classes.
Now, I have one more doubt that is:
When to use Abstract Class and when to use Interface?

As far as I am concerned, Abstract Class is used for IS-A relationships and interface for HAS-A relationships. But, for HAS-A relationships also, I can use Abstract Class instead of using interface.

Secondly, if my class needs to declare variables then I can go for abstract class instead of interface. But, I can implement the same using interface as I can declare properties.

So, I cannot be able to differentiate exactly when to use abstract class and interface

Thanks a lot for your response.
I have also gone through the localization concept in Asp.Net but I think I will have to write Hindi equivalent word for each English word, manually, and need to maintain it in resource file. So, if the website contains lot of lectures then it is really a time-consuming job to write the Hindi equivalent word for each and every word/sentence. is there any tool which can translate the English content into Hindi accurately or if there is anything I can do using C# code, for this?
Moreover, I can post the angular code what I wrote and what exactly my doubt or clarification

Ok. I was trying to understand the flow of login in my application. So, I put a breakpoint in Login button and ran the application using "Gulp" command in nodejs command prompt. the application ran and when I clicked the button, it didn't hit the login code.
Then, I stopped the application and clicked the "Debug" option, in Visual studio code editor. Nothing happened actually

Thanks a lot man. It worked.

Thanks Damith. I understood.

Thanks for the reply.
This one I saw and its saying that I will have to install 'migration package' separately (which I do not want) and update the database using visual studio command prompt.
Is there any other way out? I mean is there any trick which I can use in the context class to update the table instead of installing 'Migration Package'?

Thanks to all.

Thans to all of you for the support.

My mistake. Now, I understood the whole scenario and flow how it should work.

Ok. Thank you.

Thank you. It helped me a lot. I understood the flow now.

Actually, I will be calling through jquery ajax.
I need to host the service separately and the asp.net application separately. So, while developing, how to test them? Do I need to host both of them in IIS and then to refer the service in the asp.net application?
If that so, then while deployment how do I change the service reference url? Because, I am going to deploy the dll for both of them.

Thank you for the reply. Actually, I need to host the service separately and the asp.net application separately. So, while developing, how to test them? Do I need to host both of them in IIS and then to refer the service in the asp.net application?
If that so, then while deployment how do I change the service reference url? Because, I am going to deploy the dll for both of them.

Thanks. This is obviously helpful. Let me go through it properly and then I might again ask you if I have any other queries.
Thanks a lot.

Thank you for the reply. Actually, I need to host the service separately and the asp.net application separately. So, while developing, how to test them? Do I need to host both of them in IIS and then to refer the service in the asp.net application?
If that so, then while deployment how do I change the service reference url? Because, I am going to deploy the dll for both of them.