debugging .NET application loading slowness - vb.net

I have an application written using Windows Forms and complied against Visual Studio 2010.
We recently upgraded the solution to Visual Studio 2013 and changed to using hard references to using NuGet to manage dependencies.
The application runs on a terminal server.
When running the application on the terminal server using a version compiled using 2010, it opens instantly. When running a version compiled using 2013, it takes many minutes to open.
How can I find out why the application takes so long to open the initial form?
Any thoughts or ideas about why changing these two things have made the application so slow?
Thank you.

After a lot of debugging, I found out that the MySql.Data.dll component is executing queries twice as slow as previous versions. I downgraded to version 6.3.8 in Nuget and this has increased the speed dramatically.
I hope this helps someone with similar slowness - and using the MySql component set.

Related

vb.net and sql database application installer

Bit newbie to this but, I am trying to develop an application with vb.net and sqlexpress. My application works perfect it connects to database and shows data on datagrids and all. Now, i wanted to install this application on another computer..... so i added .net freamework and sql express 2012 in prerequisites and have added set up project to main project as well. when i built setup and used on another computer, installing process works with no errors but it does not install sql express at all. thus application does not work. I have seen lots of pages related to one click install with prerequisites and applied solutions but it seems it just does not work.
Any help is greatly appreciated.

VS2015: The components for communicating with FTP servers are not installed

I have been using Visual Studio 2010 Pro for my vb.net desktop application development. I publish the apps via clickonce to a web server with ftp. My settings look like this:
Publishing folder location: ftp://www.webaddress.com/folder/
Installation folder : http://webaddress.com/folder/
This works perfect in VS2010.
I am now trying to upgrade to Visual Studio 2015 community edition. When I try to publish my app, I get the error "The components for communicating with FTP servers are not installed". I am getting this error on both computers I have installed VS2015 on.
Strangely enough, there isn't much info on this error. The only solution I've seen is to repair the installation. I did this but still a no go.. Another cause I read about is having Xamarin installed, but I have never had that installed.
Has anybody run into this and know what the fix is??
EDIT:
It appears to not actually have anything to do with installed components. After I posted this question, I realized the publish via FTP had worked earlier on a little sample Hello World project i made (brain fart). It was only once I loaded my existing project that this error started showing up.
I closed the solution, created another simple project, and still got the error. I closed visual studio, reopened the sample project, and ftp worked! I then opened my existing project and ftp worked there too?! So I don't know what the trigger is, and I haven't had it fail again yet, but maybe this info will help figure out what is causing the failure.
EDIT (3/30/2017)
Just an update - I am still having this issue. This issue happens on visual studio 2013, 2015, and 2017. I have tried reinstalling the c++ redistributable, still nothing. It seems others are having this issue with a web project but mine is a desktop app publishing with clickonce via FTP. It must be something to do with solution I am working on that was originally created in 2010, as the issue is not present in any other project.
I had the same issue with Visual Studio 2017. What fixed it for me was to start the Visual Studio Installer and install the ".NET Core cross-platform development" workload.
I had the same issue in Visual Studio 2015 / Update 3. It was resolved after installing the 32-bit version of Visual C++ Redistributable Packages for Visual Studio 2013 (https://www.microsoft.com/en-us/download/details.aspx?id=40784)
See also https://github.com/aspnet/Tooling/issues/748
I had the same problem with Visual Studio 2015. And Publish used to work fine so I went going crazy looking for and trying different solutions. Then I read on another thread of doing a Setup-> Repair (submitted by Erikest). I did a Setup->Repair and the publish process now works! I think it's also possible that the Repair not only did the trick on the FTP components but also replaced the C++ redistributable (often mentioned as a solution to this problem),
This is a total work around, but I've noticed I get this error every time I open my app (that originated in VS2010) and try to publish without first opening a sample app. I created a new project and published it to my FTP server. When I receive this error, I close Visual studio, reopen and the open the sample project, publish that app, then open my real app. The publish then works.
This works every time, and seems to be a bug in Visual studio, and probably has something to do with the fact that my app was originally built in 2010.
Maybe this will help somebody else with the same issue. It's a big pain so hopefully MS gets a fix in for this.
I have been banging my head against this problem for many months, re-installed VS over and over and just did a clean install of Windows 10 in the hope it would work but to no avail. By chance I cleaned some old .accdb files from the App_Data folder that I no longer need since I converted to SQL Server database and FTP publishing now works.
So it seems VS does not like the .accdb files but was happy with .mdb files when publishing with FTP.
As soon as I put the file back in App_Data the problem returns. Hope this is some help.
I had the same issue here, I was using the Publish right click option on the project, which had been working fine. What fixed it for me was going back through the publish options and re-testing the connection. Publish seemed to work after that. Maybe it forgot a password or settings?
I also installed the x86 C++ Redistribution Package.
Hope this helps someone who is in the same boat.
After many successful website publishes with Visual Studio 2015 Community Edition, we experienced the "components for communicating with ftp servers are not installed" issue. :(
First attempt at resolution was uninstalling VS Community 2015, then installing VS Community 2017. Received the same error: "components for communicating with ftp servers are not installed" when attempting to publish our business website.
With some work, we found that by uninstalling Microsoft Web Deploy and re-installing, this seemed to fix the problem. We can now use Visual Studio > Publish function to our ftp without problems.
See this link for download of Microsoft Web Deploy components.
https://www.microsoft.com/en-us/download/details.aspx?id=43717
Dont know what broke this VS IDE functionality, but hope this fix helps some.
I encountered the same error with Visual Studio 2019
I fixed it by using the Visual Studio Installer to install the Web Deploy (inc .netcore 2.1) under individual components
I just did a simple "repair installation" in the installer. Worked for me.
I am using Microsoft Visual Studio Community 2019 and had this problem for a while.
The problem went away after I updated about 10 NuGet updates that were over due.
I had the same problem, I closed all the open windows I closed Visual Studio and then I opened again and published and then it worked!

Why would Visual Basic 2010 application fail to initialize after running for 2 years just fine

We are getting a application failed to initialize error 0xc000007b. I looked around it seems to maybe be the .NET framework, I also read a possible virus.
Our application is Visual Basic .NET 2010, running on Windows XP, Windows Update is turned on.
What fixes the problem, seems to be temporary, is take my backup copy of the .exe and replace the .exe on the machine, it runs for a few hours. Keep in mind I am 12 hours away or more from the machine, I remote to it using TeamViewer.
Will event viewer or something else give me a better idea of what happened? or more information about the error and it's cause?
I'm far from a Visual Basic guru, so I'm very puzzled as to why this application is throwing this error after running for approximately 2 years.
Can windows update cause this? Does .NET framework update itself automatically?
Thanks for any help.
Well if your program was not recompiled, I'd doubt it's the program itself, but if you have the source code you can try running it through the debugger to see what's going on, and where. Personally I'd try just reimaging your xp system and seeing if that fixes the issue.
Also, isn't xp out of support? I suppose windows updates could affect it. I've seen updates cause older applications to break, so it is a possibility. You can look at the recent updates and roll them back.

Can't open project in Visual Studio 2013 Express - Framework issue

So I have a program I've been making in VB for my company through Visual Studio 2013 Express for Desktop and have not worked on it in a couple of months. When I try to open it, I get the following error:
"The VB project "WindowsApplication1" is targeting ".NETFramework,Version=4.5" which is not installed on this machine."
http://imageshack.com/a/img661/6001/DGAfuk.png
I have all of the .NET frameworks installed including all developer and service packs (even language packs). I uninstalled all .NET frameworks and re-installed each of them without any resolution.
I tried to re-install Visual Studio and even tried changing the Framework (one of the options I have) but I cannot view any code or open designer view if I do so. (http://imageshack.com/a/img633/2109/OJaXbr.png)
The strange thing is this computer is the same one I have been developing this application on for months, so I'm not sure what happened over the last 60 days since I launched it.
Does anyone have any clues as to how I can resolve this issue?
Thanks in advance,
Matt
The path to your project must be Les then 256 Character.
That can be the reason of it.
Make sure the path is short "Copy the project to your c drive "C:\ProjectFolder" and try again".

VS2013 performance

Are there any tools which i can use to diagnose performance issues with VisualStudio 2013 Premium edition?
I'm currently running the Update2 RC (however speed has been the same prior also). and have a few extensions running
Web Essentials for Update 2 RC
Rename Visual Studio Window Title
Productivity power tools
nunit test adapter
ReadyRoll.
On an Intel Xeon E3-1220 V2 3.10GHz, machine with 8G of RAM i frequently experience performance issues which seem out of character to the resource available to Visual Studio.
The example scenario is a webforms project in a solution which references 19 other library projects, which is controlled by an in house TFS2012. Browser link is disabled, and the solution is built and deployed against the local IIS rather than IISexpress etc.
having two instances of visual studio open which have versions of the solution from different branches appears to have a large impact on performance.
switching between two instances of Visual studio can often cause a hanging state for a minute.
pasting code(even a small paragraph) ontop of code in an existing file (aspx,.vb) can cause a minute or so hang.
You did check out this page? it contains some tips from microsoft for troubleshooting performance.
You could also use i.e. process monitor from sysinternals to check what VS is actually doing in regards to file and registry access.
Another tip could be to delete this C:\Users\\AppData\Local\Temp\Temporary ASP.NET Files\