I have made a window application with MS access database to analysis student performance in his class for each exam that he appeared for.
I have a table named result with following fields:
classname,sectionname,subjectname,exam type,rollno,studentname and marks.
On one form I have taken crystal reportviewer and 5 comboboxes for selecting class,section, subject, exam(first,second,final or unit tests), and student name.
After selecting these values , click on button to generate graph of his marks for each exam.
I was able to generate graph for one student for any particular class and section.
But the problem is that the graph is not generating for for other exams and other students.
My code is able to give graph for one student and not for other.