Adding reference to ASP.NET Empty Web Site - not showing after adding

daowdos 261

If anyone can help me with this problem I’ll be grateful -
I want to add to my project - ASP.NET Empty Web Site a reference for other project.
After adding the reference to the App_Code folder nothing is shown inside the Bin folder -

I hope you can help me!

Thanks

5 answers

Duane Arnold 3,211 Reputation points

2021-08-01T19:33:33.04+00:00

The solution should have a reference to the BLL DLL, which should not be set from App_Code. In turn, the BLL has a reference to DAL DLL.

The only DLL the WebSite project should know about is the BLL.
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daowdos 261 Reputation points

2021-08-01T20:25:16.287+00:00

I need reference of BLL in the WebSite1(1),so I can use the WebMethods. I added it but it's not there.
Why is it so hard to explain ?

My solution is "ShopWebApplication1", from there I create a 3 new projects which are the 3 layer architecture.
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Cheong00 3,471 Reputation points

2021-08-02T07:54:22.71+00:00

There are 2 kind of ASP.NET "Projects".

"Website" is like the old ASP, they don't need a project file, and the code is only compiled to DLLs on the fly when put to run under IIS. To reference other DLLs you just need to add relevant Reference with "assemblies" section in web.config if they are strong named, copy them to BIN folder if they're not.

"Web Application", on the other hand, is those project that requires you to have a project file to use, and then will compile the "server side" part to DLLs before deployment. This is the kind of project that use the way to described to add reference.

======
That said, in "Website" project, when you use the IDE to add reference to a strong named DLL, you should be able to see the "assemblies" section be added for you. And for output of your other projects, they should be copied to BIN folder when you deploy the project as well.
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daowdos 261 Reputation points

2021-08-02T09:49:52.217+00:00

@Cheong00
Sorry I can't understand how this got to do with my probelm.

This link has nothing with my probelm - https://forums.asp.net/t/1123523.aspx?Add+assembly+to+web+config+file

It supposed to be like that -

I know to program and to code but with the references I need help.
I see nobody understand what is the problem here ;/

AgaveJoe 26,191 Reputation points

2021-08-02T11:28:51.193+00:00

Creating a project reference in Visual Studio is a fundamental feature. It just works... It's not clear why you are able to create project references in the WebService project but not the WebSite1(1) project. There must be some other issue or errors with your solution that we cannot see.

Is there any way you can provide the Visual Studio solution?

daowdos 261 Reputation points

2021-08-02T12:02:58.35+00:00

I can upload my project to github.
If you look at it.

AgaveJoe 26,191 Reputation points

2021-08-02T12:14:53.457+00:00

Yes, upload the project to GitHub and provide a link.

daowdos 261 Reputation points

2021-08-02T12:33:44.31+00:00

Here- https://github.com/Eladossa/ShopWebSiteForGit.git

But it has new errors, I don't know why it doesn't have the reference to the DAL. It okay was before

I don’t get its full of bugs now, even when i open new one it cant find the DAL.dll file

AgaveJoe 26,191 Reputation points

2021-08-02T13:51:58.01+00:00

Your project does not compile! The connection sting in the DAL project is invalid. Add a @ in the front of the string.

private static string connetionString = @"Data Source=ELAD_HA\SQLEXPRESS;Initial Catalog=SupplementsStore;Integrated Security=True";

The BLL and WebServices projects are missing the namespaces.

DAL.DAL.AddProduct

The ShopWebApplication1 should have a web reference to the ASMX service not project references. There are several fundamental logical issue with the design as well. The BLL returns a string to the WebService. The WebService returns the string which essentially is double serialization; JSON and SOAP. Your approach is made up and does not exist in any tutorial or reference doc.

Implement Web API if you want a JSON response. ASMX defaults to SOAP and XML. You are using the wrong tool(s).

Yijing Sun-MSFT 7,066 Reputation points

2021-08-03T05:53:35.777+00:00

Hi @Elado ,
Your project can't be compiled. What's your new errors? Could you post to us?Web site projects are not compiled - not until runtime.You could add assembly in Web.config and Bin file.
Best regards,
Yijing Sun

daowdos 261 Reputation points

2021-08-03T08:18:15.75+00:00

Thank you @AgaveJoe
I’m doing what I learned in college, so the JSON works good than and now.
The JSON is for the JavaScript front-end.

If it could work with string it would.
I don’t think it might work.

2) The bugs with DAL.DAL…
Is because I changed the names of the projects (class projects) —>but the folder names stayed DAL and BAL.
So I tried through the properties but it didn’t change the folders names, than I returned the previous names to BAL ,DAL
and there we have a bug…
and DAL isn’t recognized.

daowdos 261 Reputation points

2021-08-03T08:29:01.767+00:00

Hi @Yijing Sun-MSFT
a new copy of the project - https://github.com/Eladossa/ShopWebSiteForGit.git

I have another problem, if you can help I’ll be thankful-

@AgaveJoe

I made my starting project the
Website1 and I have to be on the WebService.cs file to run the project!
That is a problem.
BUT why do I must stand on the the WebService.cs file to run the project?

It’s already chosen as the starting project.
How can I get free from this?

IiIf it wasn’t clear I mean if I see the DAL.cs or the BAL.cs it won’t run, the error will show in Chrome.

AgaveJoe 26,191 Reputation points

2021-08-03T14:53:49.527+00:00

It’s already chosen as the starting project.

ASMX projects do not have a default HTML document because SOAP services are not user interface projects.

Simply, right click on the WebService.asmx file and select "View in Browser". This will open the ASMX help file.

I’m doing what I learned in college, so the JSON works good than and now.

I doubt the client expects and XML response with an embedded JSON string.

<string xmlns="http://tempuri.org/">[{"ProductID":3,"ProductName":"Widget","CategoryName":"Widget","Price":10.29,"Stock":10,"ProductDescription":"This is a Widget","ProductOverview":"Overview","ProductImage":""},{"ProductID":4,"ProductName":"Foo Bar","CategoryName":"Foo Bar","Price":8.88,"Stock":10,"ProductDescription":"This is a Foo Bar","ProductOverview":"Foo Bar Overview","ProductImage":""}]</string>

Anyway, I took the time to fix your project layer design and several logical bugs. Unfortunately, I do not have the authority to check-in the branch.

daowdos 261 Reputation points

2021-08-03T16:03:10.807+00:00

Ok thanks for the effort, I can make you a contributor, I’m now off the computer so I can do it later.

Whats is your github email?

Thanks 🙏🏻

AgaveJoe 26,191 Reputation points

2021-08-03T16:43:02.32+00:00

I added your project to my repo. I moved the Products class to a shared library. Database entities should NOT be located in the business logic layer. I added a GetProductList() method to the DAL to illustrate how to fill a List<Product> from a SQL DataReader in the DAL. You do not have business logic so the BLL is just a pass-through. I also fixed the Web Method to return an actual type rather than an XML with an embedded JSON string.

I also added a Web API project in the "Dev" branch with a Products controller so you can see how how to pass JSON directly back to the client using modern tools; https://localhost:44363/api/products.

Your logic queries a AllProducts object which I assume is a View based on the Products table??? Anyway I added a View to handle this query. There are other issue with your code and design but this should get you started.

You are not using the .NET tools correctly. I recommend learning standard programming patterns and practices as well as the the problems .NET framework(s) solve.

daowdos 261 Reputation points

2021-08-05T09:08:51.03+00:00

Thank you very much Joe, I will now download the project from your repo and observe the changes you made.

2) Yes "AllProducts" is a SQL View.

I should learn the standard programming patterns and practices but it will take some time.

Very much appreciate! 🙏
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Cheong00 3,471 Reputation points

2021-08-03T09:48:01.417+00:00

I downloaded your project and see your WebApplication have successfully added reference to BLL and DAL, and then BLL have reference to DAL.

There's no problem at all and I can compile it successsfully.

Except your DLL have unrecognized escape sequence that prevents it from being compiled. You should use "\" instead of single "\" in C# strings
Also there is 2 methods calls to DAL need to be renamed as DAL.DAL.

The same goes to your Website calls, it should be BLL.BLL.<method_name>()
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daowdos 261 Reputation points

2021-08-03T09:54:42.577+00:00

Hi @Cheong00 I started a new project "ASP.NET empty website"
there I succeed to add the reference to the BLL class project.

Before that I couldn't, the solution was a different ASP.NET project there I needed to add a new project - "ASP.NET empty website", I don't know why it didn't add the reference there.

Yijing Sun-MSFT 7,066 Reputation points

2021-08-04T05:16:25.36+00:00

Hi @Elado,
It's my guessing.Wheather it's in the GAC? For a Web Site project, when you add a reference, all it does is add a line to the web.config that references the assembly. It will look for this file first in the bin folder, and then in the GAC if it is not found.
Best regards,
Yijing Sun

Cheong00 3,471 Reputation points

2021-08-04T20:26:47.29+00:00

The reason is that your BLL contains bug so it won't compile, and since it won't compile there is no DLL file exist, and therefore it won't show up.

By fixing the calls to DAL it can now compile and you problem is gone.
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daowdos 261 Reputation points

2021-08-05T09:41:45.427+00:00
@AgaveJoe Hi and thanks again, 'm checking the project from your repo.

I see in the List<Product> GetProductList() you didn't do try catch for error, why didn't you ?

2) In my project BLL -
it has to be **(float)**(decimal)ds.Tables[0].Rows[i]["Price"] Other wise it can't compile, why is it not taking decimal value by itself ?

3) I don't understand why you made this - private static string connectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString();

Instead of this in my code - private static string connetionString = @"Data Source=ELADO\SQLEXPRESS;Initial Catalog=SupplementsStore;Integrated Security=True";

Severity Code Description Project File Line Suppression State
Error The CodeDom provider type "Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" could not be located. C:\Users\Elad Hatan\Desktop\ShopWebSite1-master\WebSite1\Web.config 16

If I comment the line above there is a Message when running the project - "

Web server.Port 63579 is in use.
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AgaveJoe 26,191 Reputation points

2021-08-05T11:13:07.337+00:00

1) I see in the List<Product> GetProductList() you didn't do try catch for error, why didn't you ?

Your original code catches exceptions and returns null which hides exceptions. It better to remove the try...catch then hide exceptions. Add the try catch in the web method and actually log the exception.

it has to be (float)(decimal)ds.Tables[0].Rows[i]["Price"] Other wise it can't compile, why is it not taking decimal value by itself ?

Currency should be a decimal due to how binary math works.

3) I don't understand why you made this - private static string connectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString();

Storing configuration in the web.config is a best practice found in ever beginning level tutorial. It is easier to update the web.config than compile and deploy a hard coded library.

<configuration> <connectionStrings> <add name="DefaultConnection" connectionString="Data Source=(localdb)\MSSQLLocalDB;Initial Catalog=DemoDB;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False;ApplicationIntent=ReadWrite;MultiSubnetFailover=False"/> </connectionStrings>

My question is why are you not following standards?

Also, review the Dev branch which fixes many of your coding and logical bugs. It also illustrates how to properly implement Web API and fetch.

Shut down IIS Express then open the app.

daowdos 261 Reputation points

2021-08-05T11:28:52.337+00:00

2) I know but in my project there is zigzag under line at (decimal)ds.Tables[0].Rows[i]["Price"];
needed to fix to (float)(decimal)ds.Tables[0].Rows[i]["Price"],

As again I said what I learned in my courses was the standards.
I download a copy of your

ShopWebSite1-master

ShopWebSite1-Dev Error:

Yijing Sun-MSFT 7,066 Reputation points

2021-08-06T08:05:48.477+00:00

Hi @Elado,
To resolve this issue, you could remove the Roslyn compiler from the project template.

To remove Nuget packages, use the following commands from Nuget Package Console
uninstall-package Microsoft.CodeDom.Providers.DotNetCompilerPlatform uninstall-package Microsoft.Net.Compilers

Remove the following code from Web.Config. Actually use this method only if doing step 1 doesn't solves your problem <system.codedom>
<compilers>
<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\"Web\" /optionInfer+" />
</compilers>
</system.codedom>
Best regards,
Yijing Sun
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Angelo Alzona 1 Reputation point

2022-07-08T05:25:24.303+00:00

Check the list of Reference.

like here.

then, delete and add it again to the reference.

That's all :)
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