WinForms Application not opening on other computers - c#

I have made a WinForms application that uses DevExpress (trial) but some of my friends can open it but some others can't. You can find the source here: https://github.com/JujharSingh/Exploit-Studio
I have also made sure that I didn't delete any DLL files while packaging.

Make sure you right click on all the required files in solution explorer and include them so when you publish your project, they're deployed with the project.
Also make sure you've the following option configured correctly:
You wouldn't have to worry about .Net framework version as the published setup automatically installs missing .Net files.
Finally, goto your project Properties -> Publish -> Application Files and mark the required files as required and include them:
And on the same page, tick the required prerequisites:
Finally, make sure you're giving them the published version, not the copied executable file. Hope this helps

Related

how to make a standalone exe file

I started learning c# a couple days ago and want to send my first program to my friend but as a standalone exe file that can be shared through google drive.
I've found several solutions but I coudln't understand any of them. Is there a simple solution to compile an exe file or a standalone app in visual studio 2019 that would just work when you open it
One annoying thing with .NET Core is that when you build it in Visual Studio it makes lots of separate files, which is annoying for portability.
A fix to this is to right-click on your project in Solution Explorer and click Publish. Select Folder Profile, give it a name and save it.
After that, you will need to edit the target runtime option, and set it to win-x86. After that, you should see a dropdown box at the bottom of the dialog, expand it and check 'Produce a single file'.
Then you can hit Publish and it should produce a single file.
NOTE: This does not work in .NET Framework, only .NET Core.
All you gotta do is simply build the project within Visual Studio, once that's done. Go to your projects folder and go into bin/Release (or Debug if you've selected debug build)/myprogram.exe. It should make a standalone .exe file!
Maybe this could also help you.
Official Documentation: Compiling Building in Visual Studio

WPF ClickOnce missed references

I have a WPF app that works with local SQLite and Entity Framework Core. I want to distribute my app using ClickOnce.
Everything works fine when I run it using Visual Studio 2017. But app had a crash on a start when I used ClickOnce. The crash was so early so I couldn't even log the exception. After some time I found that in publish folder some dlls were missed. For example System.Runtime. All references are NuGet packages. Then I found that despite of I have a reference to the dlls in my project ClickOnce application files list doesn't contains it.
The only solution I have found for now is to add missed dlls as files in root of my project and set build action to Content. In ClickOnce application file dialog I set publish status to Include.
It works now but it looks like not the best way to do it. The question is why they are missed in the first place. More likely I missed something or I am not understand the root of the problem.
UPD:
You can find an example code here.
It works from Visual Studio but crashes on a start when you try to install it as ClickOnce application.
UPD: The problem was fixed in Visual Studio Professional version 15.6.1
There are two ways solving solve this.
At first, you have to go Properties → Publish → Application Files, and at this place, make your DLL files include in your project
But if it does not work, go to References and make the DLL file CopyLocal = False. You add a DLL file like Existing Item in your project and make them Copy Always.
It will work correctly.
But for your sample I watch this and I solved it. Look at this image:
You have four DLL files. You need do this for them:
System.Diagnostics.Tracing.dll
System.Reflection.dll
System.Runtime.dll
System.Runtime.Extensions.dll
At first go to your reference and make them Copy Local False:
Then go to the path of each DLL file and add them like Existing Item, and then make all of them Copy To Output Directory CopyAlways
Then Publish it and run it like in this picture. I run it from publish file and it works.
Even if you set the dll to copy local, the dll will not get copied over unless you actually use the dll in your code. You might try adding System.Runtime in your code somewhere like this maybe?
var dummytest = System.Runtime.GCSettings.IsServerGC;
Based on Issue 9 on https://blogs.msdn.microsoft.com/bclteam/p/asynctargetingpackkb/ I was able to do the following:
Symptom
ClickOnce applications targeting .NET Framework 4.0 that reference the Microsoft.Bcl or Microsoft.Bcl.Async packages may experience a TypeLoadException or other errors after being installed.
Resolution
This occurs because ClickOnce fails to deploy certain required assemblies. As a workaround, do the following:
Right-click on the project and choose Add Existing Item
Browse to the folder where the System.Runtime.dll lives
In the File name text box paste in the path of the file
Click the down-arrow next to the Add button and choose Add as Link
In Solution Explorer, holding CTRL select System.Runtime.dll
Right-click the selection, choose Properties and change Copy to Output Directory to Copy always
Republish

How to make it a program work on every Windows pc?

I have created a application which connects and performs function to a database. However when I compile and publish the application my clients report a error message while trying to open the file about a missing file.
So they need to have the connector installed before they can use my application, how can I fix this?
Create an installer that ensures this dependency is met. WiX is the normal route here. The WiX tools do not depend on VS, although the VS tools make things a little easier for you.
-or-
In VS, open the references section of your project, find the reference to MySql.Data, go to properties and set "Copy Local" to true and rebuild. Now the .dll will be copied to your bin folder, ready for redistribution as you see fit.

publish winforms application without install

I've been creating winforms application for a while now, but i've never really published one to other people before.
Recently I started doing this but every time I publish my build, the user requires to de-install his current installation and install the new one.
Is there any way to remove this, so I'll only have to send a .exe file which they can use without any form of installing?
I've attempted to send the .exe file in the bin/debug/ but this only seems to work on computers where Visual Studio is installed.
Go to your solution and set the CopyLocal to true for all projects, this will ensure that the ..\Bin folder contains all the necessary assemblies for your program. Then just zip up the ..\Bin folder, get it onto the client machine, and then unzip it.
Hope this helps!
1) Change from Debug to Release in Solution Configurations
2) Right click on your project and click rebuild
3) Go to your bin=>Release=> app.publish for your exe version
4) Copy over any required .dll files,any .config files and any other resource/image files you need from bin=>Release to bin=>Release=> app.publish.
Your app.publish folder should now contain all the files required to run your form, and can be copied or zipped up and send to anyone who needs to use it !
You can try using ClickOnce as an installation method. It even has a built-in auto-update, so you can publish your application to a web server, and all existing installations will download latests version automatically.
To configure ClickOnce go to corresponding tab in your project settings.

Create Setup Project DLL files Information

I finished a project.I am trying create a setup .
My Problem is that :after I create setup project dll files that I used in project added to same folder with my .exe file like
ApplicationFolder(Folder)
Devexpress.Data.dll
Devexpress.Util..dll
.
.
project.exe
but I want to get it different folder.
like
ApplicationFolder(Folder)
MYDLLFILES(Folder)
project.exe(exe file)
how can I make this? Thanks a lot
This is not only a problem of setup. unless you are already handling this in the app.config and/or with appdomain.assemblyresolve event your application will not work at all on the user's machines once those required references will not be available in the same folder if the .exe file.
Surely you could isolate every single file and tell the setup project where to put it but your program has to be modifief to then look for those files in those other locations.
I accidentally faced this problem today, I want to add some separate dll files into the setup package (I have to do this because I can't add reference of these dll files into my C# program , these dll files are of 3rd-party software).
I did as following:
Right click on Setup Project > Add > Assembly and then browse to dll which I need, then press OK button.
These dll files will be included into Setup project, and will be packaged into setup file also.
Hth.
The problem is that Visual Studio setup projects will automatically include referenced DLLs for you so you won't be able to customize their location with these setup projects.
See also the following articles by DevExpress:
How to deploy WinForms applications on client machines
How to distribute applications which use Developer Express .NET Windows Forms controls
The second article explains how to register DLLs copied to a different location.
By the way we're also also deploying a big app using these VS setup projects and our base installation folder is full of DevExpress and other DLLs. I agree that it looks totally ugly and I'd also prefer a clean structure with a lib subfolder, but nobody cares about that. Customers don't start our application from the installation folder, they use the shortcuts.

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