V
VC
I created an usercontrol ACTRL. and I fired an event from the ACTRL.
in my form application, do all ACTRL controls have to do "+=" to sign
up the event? my problem is if the ACTRL control in the form app
doesn't sign up the event, the application will throw exception
"Object reference not set to an instance of an object" during the run
time.
in my form application, do all ACTRL controls have to do "+=" to sign
up the event? my problem is if the ACTRL control in the form app
doesn't sign up the event, the application will throw exception
"Object reference not set to an instance of an object" during the run
time.