report s

hi,

1.what is the difference between "initialization" and "at selection output" events. can you explain in detail with example.

2.what is the use of end-of-selection event . where we have to specify. eventhough end-of-selection is not given ther is no problem.

what condition we have to mention. can u expleain in detail.

the importance of end-of-selection.

3.what is screen level validation differed from field level validation.