Datagridview cannot set properties, right click and then some properties will pop-up will object reference not set to an instance of an object, also does not have the add event button,

CodePudding user response:

CodePudding user response:

Removed to create again,
Not yet, create a new project, and see if I can add

CodePudding user response:

Can create a new project can be normal use datagridview, but is can't use the current projects