Novice just contact with c #, want to be a student management system, the code is always in the red line not line, who taught, what went wrong? Is there is an error code? Or how to return a responsibility? Thank you

CodePudding user response:

Breaking point whether there is a problem, see your SQL statements to debug of SQL statements can copy and paste to your database to see

CodePudding user response:

Visual infor less a space behind

 
"Select * from infor" + conditiong;