visual studio 2019 shortcut keys Edit
Comment UnComment
ctrl k c - Comment
ctrl k u - Un Comment
Open Command Window
ctrl w a to open visual studio command window
Remove One Line
ctrl l go to the line you want to remove and press ctrl l
Close all open tabs/files
alt w l press down alt key pressing keys w followed by l will close all open tabs or files
OR
ctrl w a to open visual studio command window and type 'closeall'. to save all before closing type 'saveall' press enter then type 'closeall'
Search & Replace
ctrl shirt h pressing control shirt h will open search & replace popup
Find In Files
ctrl shift f press control shift f to find string in multiple files