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I have just installed vs 2019 community choosing the package ".NET desktop development" (also I become sure that when I run installer. It shows what I installed under the tab -WORKLOADS). I just created default form project without writing a single code. I run it and I observed blank form on my desktop successfully. When I am at code file again , I tried to switch to designer view by right click menu or double click on solution explorer pane but no use. I stayed at code file persistently.

I did some googling and also searched in stackoverflow but didn't find a solution. What I found was some advice to install all packages. But I have space problem so if that (missing package) is the root cause of the issue; please tell me which package should I install specifically. Thanks already.

Abdulrahman Bres
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cho
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7 Answers7

5

For me at right in Solution Explorer > Switch Views solved the same problem, when I switched ProjectName.sln:

enter image description here

Adrian Mole
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LeaDigszammal
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  • this was a life saver. I have been trying to figure out what went wrong and nothing worked until I tried this option. Many thanks for the help. – DK2014 Apr 29 '22 at 10:48
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It turned out that I've created my project as a Windows Form App(.NET Core) project, which doesn't support form designer. I created my project again selecting Windows Form App(.NET Framework) instead and the designer showed up

Source:

https://developercommunity.visualstudio.com/content/problem/752558/design-view-does-not-show-in-visual-studio-2019-co.html

Abdulrahman Bres
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cho
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  • link: https://developercommunity.visualstudio.com/content/problem/752558/design-view-does-not-show-in-visual-studio-2019-co.html – cho Oct 12 '19 at 15:53
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I was having this problem and I solved it as a Simple Click, but i am go to explain.

Create your project a WebForm(.NET Framewor) not .Net Core. from the menu in visual studio Hit Options, then do this

enter image description here

Save it and restart visual studio, and then you are done, you will see the Design time.

Ruben
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The problem is that VB saves an extra file in a folder which is different to the one you used to save your forms.

Do the following:

  1. Open VB with nothing loaded

  2. Go to File -> Open -> project/solution (drop menu in the top left corner)

  3. VB will show you a folder different to the one in which you have your files. One of the folders shown will have the same name as the project you saved originally (example: Project1). Double-click in that folder to open it. You will see a *.sln file named after your project (example: Project1.sln). Double click on it to open it

  4. Now the Design View of the form will be shown! KEY CONCEPT: Open the *.sln file (xxx.sln) instead of the xxx.Designer.vb, xxx.resx, and xxx.vb files! The xxx.sln file is located in a DIFFERENT DIRECTORY (not the same as xxx.Designer.vb, xxx.resx, xxx.vb).

  5. Now in solution explorer right click on .vb file and click on view designer.

Ruli
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Bhargav Sonagara
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I have a large .Net Framework Solution (.Net 4.8), and started bumping into this issue a few months ago in VS2019. This solution has evolved over time since VS 2005, and it did not happen before. I have found that if I clean the solution, and then re-open it, it will not open any of my many forms in design view. A solution rebuild solves that problem.

AndruWitta
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A simple "Build > Rebuild Solution" solved the problem in my case.

curyfernando
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You can switch to designer mode pressing "Shift" + "F7". If it doesn't switch, I'll recommend to reinstall VS paying special atention to those packages related to windows forms.

RookieCoder
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  • I have already tried Shift+F7 , it does not work. I reinstalled it but result is same. There is only one package related. Here is explanation for this package. ".NET desktop development Build WPF, Windows Forms, and console applications using C#, Visual Basic, and F# with .NET Core and .NET " – cho Oct 11 '19 at 18:21