Datatips (mouse hover over variables in debug mode) not working in Visual Studio 2012 / Win 7 64bit

Question

When I hover my mouse over a variable when debugging a C# app in Visual Studio nothing popups. I expect to see the value of the variable (aka datatips). I\'m running Visual

Answer 1

the same happened to me but only with C#, active mode administered compatibility (Managed Compatibility Mode) and it worked well, then I wanted to modify the code while had debugged and came out a motioning message "compatibility mode administered is not supports edit and continue" then turn it off again, under native support is (Use the legacy C# and VB expression evaluators) enable this option and you can see the value of objects and edit code debugging.

Greetings.

Answer 2

For me, this worked on Microsoft Visual Studio Community 2017, Version 15.9.9:

1. If you are facing this issue simply uninstall the current version and reinstall VS. After installing and running debugging mode first time, please choose "Disable Just My code and Continue" selection,it should work.(as shown in the attached screen shot).

2. If you do not want to uninstall and then re-install visual studio,then try these settings on the existing VS installation:

Go to: Options => Import and Export Settings ==>Reset All Settings==>No Just reset settings,overwrite my current settings =>Finish

after this simply start debugging and choose "Disable Just My code and Continue" option.

3.If you are still having problem,please also make sure by going to project =>properties ==> Configurations that you have configurations set to debug(sometimes configurations are set to release)

4. Go to Tools=>options =>Debugging ==> General ==> select Suppress JIT optimization on module load