Hai abap gurus...

Question

difference bet'n simple and interactive reports?
what are the events in interactive reports?
what is the first event that will be triggered in a report?
what is the use of Initialization event? give one example.
what is the use of start-of-selection event?
what is the difference betn end-of-page and end-of-selection?
if you write a write statement after end-of-selection, will that be
triggered?
how to create a button in selection screen?
how to add a gui status in a selection screen?
what is at-line-selection event?

Answer 1

Hi,
1> A simple report is a standard report where as Interactive report is a Drilled down report.A Simple report is one where we get the data from a single table n display it as a single output...Where as in Interactive report we can get the data from different tables n display it on different output screens......once if we click on any field on the basic list then we get its details on the next secondary list.
2> The events in Interactive reports are...
Initialization, At selection-screen, Start-of-selection, top-of-page, end-of-page, end-of-selection, At User-command, Set pf-status and top-of-page during Line selection, At line-selection.
3> The event that will be triggered in a report is Initialization if only the debugging is done from the Abap-Editor.....If the debugging is done from the program then Start-of--selection gets triggered.
4>Initialization - It is a process that takes place after the seelction screen could display.
eg;
select-option matnr for mara-matnr.
matnr-low = '00'.
matnr-high = '1000'.
matnr-sign = 'i'.
matnr-option = 'bt'.
Append matnr.
5> Start-of-selection is a default event.....
All the statements under start-of-selection must be executed before it goes for the next statement.
6> End-of-page id used to display all the statements on the last line of the page. where as end-of-selection triggers at the end of the program.....
Eg;
End-of-page.
write:/10 'System date:', sy-datum, 30 'page no:', sy-pagno.
End-of-selection.
write :/ "end of the program".
7>If u write a write statement after end-of-selection it will trigger......as it starts from initialization and then goes to Start-of-selection n then to end-of selection so if u write it will get triggered.
8> To create a Push Button just use this statement Selection-screen Pushbutton 
  /30(30) text-001 user-command enter(anything u can give).
double click on the text-001 and give the respective name.
9> At line-selection is used to view a detailed list of a report....For example if u had created a report on material n if u want to get the details from marc n mard tables then display them on the next list then we use at Line-selection...So that when we click on a specific field on the basic list it will display the secondary list with marc details........so thats why its called as drilled down report....as we can have 21 list..
In which the first list is the Basic List and the other 20 lists are the secondary lists.
When u try to click on a field to get the details in the next secondary list that field should be kept in Hide.
Hide is a statement that temporarily stores the contents of the clicked field in the 'Hide Area'.
Hide statement is always followed by the write statement.
eg; start-of-selection.
select * from mara into table itab where matnr in matnr.
loop at itab.
write:/ itab-matnr, itab-ernam, itab-ersda.
hide itab-matnr.
endloop.