ide – My Visual Studio no show the errros in my code

admin

From looking at your screenshot, looks like you are configuring POST route parameter binding with C#. For this issue, please try the following:

1.Please enable Show error squiggles option under Tools -> Options -> Text Editor -> General

2.Run the following command at Developer Command Prompt for VS(e.g:2022)to restore your Visual Studio default setting.

devenv /ResetSettings

3.Close all running VS instances and delete the hidden .vs, bin and obj folders in the project folder, then rebuild the project.

4.If the issue persists, please try to update your Visual Studio to the latest version(17.12.3) since new version has fixed some known problems.

Read more here: Source link