Debug in Browser? - c#

Asp.net app runs fine without issues on localhost. However, when published and I access via Chrome/Edge it does not work as intended (will not load the page when button is clicked). Is there a way to see what the live published version is doing in the code?
Tried replicating the issue in Visual Studio Debug, but could not recreate it

ASP.NET code is executed on the server, so there’s not a lot to see in the browser. You can use the Chrome/Edge developer tools (F12) to see what it is seeing, though. There might be helpful information in the console and especially in the network tab, where you can see what requests the app is making and what the server’s responses to them are in some detail. (I’ve had problems with web apps making assumptions about their path that didn’t apply once they were installed.) If you have sufficient access to the server, it might be helpful to look at its logs, especially if your app is returing 500 errors. It’s often a good idea to implement a lot of logging in your web app, using NLog, log4net, or similar libraries. Again, though, you have to have permission to write the logs and to look at them when you need to.

Please follow the normal debugging workflow:
Load a page in your browser.
Open the developer tools.
Select Sources tab; Open HTML file; Open JavaScript file.
Set a breakpoint in the JavaScript file.
Reload the browser page. Loading stops at the breakpoint.
Debug until you find the problem.
Fix the problem (in your usual code editor, not in the developer tools) and save the file.
Debugging tools are supported by most browsers and environments, which make debugging easier by stepping through the code so you can see what's going on.

Related

Published .aspx only shows plain html

Today i made a quick template for a landingpage and wanted to test it on my webhotel. I have never actually published a website on a webhotel before, but the initial process in asp.net was pretty flawless.
The way i got my webpage onto the server, was by publishing my project and transferring it to my server on a FTP connection.
However, when i open my up my webpage, it only shows the html code, which is really weird. .
http://bkrt.dk/Index.aspx
What may i have done wrong, and How do i solve this issue?
Turns out that my webhotel doesnt support .aspx, but only php!
- Solution is that i either change webhotel, or do a full convertion to html, which seems to be no option. I will therefore look for a webhotel with asp.net support.

asp.net Chart unknown error

I have been some time using asp.net charts, even it was hard to config for asp 3.5 and to make it work, I have been able to move along with all my project but I'm facing something that I have no idea how to solve.
This project works perfectly on my develop enviroment, but when i deployed it on the server, the only page with charts on it appeared like this:
I assume its cause of the charts because its the only thing that really have given me problems and its the only thing that its exclusively on this page but i have no idea how this happens, it only happens on the server with Plesk.
Tried to upload on debug instead of release but the result is the same. Searched overall but never found anything like this.
My Answer may not give you the exact solution. But it may give you an idea's.
Below are my Ideas:
Make Sure you have included all the files into your solution when you do the Build.
Make Sure you have all dependency of Asp.Net Charts in Server.
Check you browser Console and Browser Network. Press F12 in your and check. You can get to know the Exact problem if any issue in loading prob / dependency files.
Double check your server configurations for the charts. And compare your local and server configs.
Do the Deployment in your machine itself and check one round.

Application getting slow when open the application for the first time

I have developed a application in ASP.NET using c#. The entire application working fine but the problem is when I open the application for first time it running very slow. i.e. its taking so much time to load a page like home page or any other page. But when I reopen that page then that page opens quickly as I expect. Even whenever application getting session expired and relogin into application its taking so much time again to load all the pages for the first time, where from 2nd time to opens that pages its not happening. So can anybody tell me what is the problem occuring here.
The application is compiled on the first request.
Read this article by Microsoft.
Because ASP.NET compiles your Web site on first user request, you can
simply copy your application's source code to the production Web
server. However, ASP.NET also provides precompilation options that
allow you to compile your Web site before it has been deployed, or to
compile it after it has been deployed but before a user requests it.
Precompilation has several advantages. It can improve the performance
of your Web site on first request because there will be no lag time
while ASP.NET compiles the site. Precompiling can also help you find
errors that might otherwise be found only when a user requests a page.
Finally, if you precompile the Web site before you deploy it, you can
deploy the assemblies instead of the source code.
You can precompile a Web site using the ASP.NET compiler tool (ASPNET_Compiler.exe). The tool that provides the following precompilation options:
In-place compilation This option performs the same compilation that occurs during dynamic compilation. Use this option to compile a Web site that has already been deployed to a production server.
Non-updateable full precompilation Use this to compile an application and then copy the compiled output to the production server. All application code, markup, and UI code is compiled into assemblies. Placeholder files such as .aspx pages still exist so that you can perform file-specific tasks such as configure permissions, but the files contain no updateable code. In order to update any page or any code you must precompile the Web site again and deploy it again.
Updateable precompilation This is similar to non-updateable full precompilation, except that UI elements such as .aspx pages and .ascx controls retain all their markup, UI code, and inline code, if any. You can update code in the file after it has been deployed; ASP.NET will detect changes to the file and recompile it. Note that code in a code-behind file (.vb or .cs file) built into assemblies during precompilation, and you therefore cannot change it without going through the precompilation and deployment steps again.
However, you mentioned that it's also slow if the session expired. Maybe you are loading too much into memory on session start. It's difficult to make a diagnosis without more informations.
Check your site in firebug in .net tab there you will find which part of your page take much time to load,
there might be some exceptions or some code errors in client side language.
Try to use less sessions
and debug your code to clarify no extra looping of code
(sorry for bad English but hopefully you have got my point)

Protect source code of an ASP.NET website

In our college they have competition--students have to develop and show some code. It has a cash prize. I have done an entry as a website (C#) using asp.net. The problem is that my website is in the computer laboratory of the college, so anybody can open Visual Studio and copy my project or edit it.
I want to protect my project. Is there any way to put password for the project alone in Visual Studio? To make it attractive I have hosted the website in the IIS of the server, so by using the IP adresss I can run the project anywhere with intranet access.
When I put a lock like EasyFileLocker, I am unable to open and run the project using the IP address.
I want to run my project anywhere in the intranet, but also protect its code.
How can I do that?
Presuming your source code is somewhere safe (if not, then put it somewhere safe over which you have control), then the deployed end result need not expose the source code in its raw format; you can pre-compile ASP.NET websites entirely (such that even the markup can't be edited on the server - at least not very easily) - do this by selecting the pre-compilation options on the deploy screen, being sure to uncheck "allow this website to be updatable".
the exact method of specifying the right build options differs between VS versions, but the options are the same ultimately: Precompile, (Don't) Allow precompiled site to be updatable.
The result is the code of your website ending up in binaries, including the page markup (the files still exist, but simply as placeholders with their substance missing.) For someone to get at your code, they'd need to reflect your binaries.

Advice on publishing VS MVC3 project to web server

As a company for years we have worked using old ASP (vbscript), we have just started updating to c# .net. our first MVC3 project is ready to be uploaded to the web server for testing and to iron out any bugs.
After reading about it I have made myself fairly familiar with the theory of it.
System.Web.Mvc
System.Web.Routing
System.Web.Abstractions
Have all been set to copy local 'true'
Right clicked the solution and selected 'Publish'
Created a new profile
Filled in the connection details, although I am unsure exactly what is meant by the 'Site Path' and 'Destination URL'
As it stands the site path is the scripting path and the destination URL is the URL as it would be typed into an address bar in a browser.
connection does validate.
in setting I have selected release
The there is a little tick box which seems scary to me, it says "Delete all existing files prior to publish" The server I am uploading to contains all our live and test websites, although I have created a new folder for the project, I under no circumstances want it to touch, edit, modify or delete anything else on the server. So this box is unchecked. Can anyone verify that leaving this unchecked will ensure it does nothing to anything else on the server?
Then in preview it simply says "Your application will be published to: (IP address of server)
Can anyone who has done this before give me some guidance this is the correct method to go? I could do it will less worries through a normal ftp but would like to be able to utilise Visual Studios tools. Its Visual Studio 2012.
Sorry if this isn't the exact correct place for this question.
After trying to do this for a while I discovered that publishing to ftp was a waste of time and the hard way to go about things. Although probably alot of you know this.
Instead I just published to a system file and then uploaded it with cuteftp to the web server. This maybe isn't the most professional way to go about things but from someone that comes from a primarily web scripting background, I found this alot less confusing and alot easier to manage.
I just thought I would answer my own question to resolve this thread.

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