{"id":7342,"date":"2025-08-03T12:24:31","date_gmt":"2025-08-03T06:54:31","guid":{"rendered":"https:\/\/www.sapewmhelp.com\/?question=classical-report-events-in-sap-abap"},"modified":"2025-08-03T12:24:31","modified_gmt":"2025-08-03T06:54:31","slug":"classical-report-events-in-sap-abap","status":"publish","type":"question","link":"https:\/\/www.sapewmhelp.com\/?question=classical-report-events-in-sap-abap","title":{"rendered":"Classical Report Events in SAP ABAP"},"content":{"rendered":"

Classical Reports in ABAP use a sequence of predefined events during program execution. These events let you structure your code based on data fetching, formatting, and output rendering.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Event<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
LOAD-OF-PROGRAM<\/code><\/td>\nTriggered once when the program is loaded into memory (before anything else)<\/td>\n<\/tr>\n
INITIALIZATION<\/code><\/td>\nCalled before the selection screen is displayed<\/td>\n<\/tr>\n
AT SELECTION-SCREEN<\/code><\/td>\nCalled after user input is entered on the selection screen<\/td>\n<\/tr>\n
START-OF-SELECTION<\/code><\/td>\nMain logic block, starts after selection screen input<\/td>\n<\/tr>\n
TOP-OF-PAGE<\/code><\/td>\nUsed to print page headers<\/td>\n<\/tr>\n
END-OF-PAGE<\/code><\/td>\nUsed to print page footers<\/td>\n<\/tr>\n
END-OF-SELECTION<\/code><\/td>\nCalled after START-OF-SELECTION, typically for final output<\/td>\n<\/tr>\n
AT LINE-SELECTION<\/code><\/td>\nTriggered by user double-click (F2) on output<\/td>\n<\/tr>\n
AT USER-COMMAND<\/code><\/td>\nTriggered when a custom function key is pressed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
REPORT\u00a0<\/span>zrep_lclclass.<\/span>\r\n\r\nTABLES<\/span>:\u00a0<\/span>mara.<\/span>\r\ndata<\/span>:\u00a0<\/span>lt_mara\u00a0type\u00a0<\/span>table\u00a0<\/span>of\u00a0<\/span>mara.<\/span>\r\n\r\n\"\u00a0Selection\u00a0Screen<\/span>\r\nSELECT-OPTIONS<\/span>:\u00a0<\/span>s_matnr\u00a0FOR\u00a0<\/span>mara-<\/span>matnr.<\/span>\r\n\r\n\"\u00a0LOAD-OF-PROGRAM<\/span>\r\n\r\nLOAD-OF-PROGRAM<\/span>.<\/span>\r\n\u00a0\u00a0WRITE<\/span>:\u00a0<\/span>\/\u00a0'>>\u00a0Program\u00a0<\/span>loaded\u00a0into\u00a0<\/span>memory<\/span>.<\/span>'.<\/span>\r\n\r\n\u00a0\u00a0\"\u00a0INITIALIZATION<\/span>\r\n\r\nINITIALIZATION<\/span>.<\/span>\r\n\u00a0\u00a0s_matnr-<\/span>sign\u00a0\u00a0\u00a0<\/span>=\u00a0<\/span>'I'.<\/span>\r\n\u00a0\u00a0s_matnr-<\/span>option\u00a0=\u00a0<\/span>'EQ'.<\/span>\r\n\u00a0\u00a0s_matnr-<\/span>low\u00a0\u00a0\u00a0\u00a0=\u00a0<\/span>'1'.<\/span>\r\n\u00a0\u00a0s_matnr-<\/span>high\u00a0=\u00a0<\/span>'9999'.<\/span>\r\n\u00a0\u00a0APPEND\u00a0<\/span>s_matnr.<\/span>\r\n\r\n\u00a0\u00a0\"\u00a0AT\u00a0SELECTION-SCREEN<\/span>\r\n\r\nAT\u00a0<\/span>SELECTION-SCREEN<\/span>.<\/span>\r\n\u00a0\u00a0IF\u00a0<\/span>s_matnr[]\u00a0IS\u00a0<\/span>INITIAL<\/span>.<\/span>\r\n\u00a0\u00a0\u00a0\u00a0MESSAGE\u00a0<\/span>'Please\u00a0enter\u00a0a\u00a0carrier\u00a0ID'\u00a0TYPE\u00a0<\/span>'E'.<\/span>\r\n\u00a0\u00a0ENDIF<\/span>.<\/span>\r\n\r\n\u00a0\u00a0\"\u00a0START-OF-SELECTION<\/span>\r\n\r\nSTART-OF-SELECTION<\/span>.<\/span>\r\n\u00a0\u00a0WRITE<\/span>:\u00a0<\/span>\/\u00a0'>>\u00a0Start\u00a0of\u00a0<\/span>selection'.<\/span>\r\n\u00a0\u00a0SELECT\u00a0<\/span>*\u00a0FROM\u00a0<\/span>mara\u00a0INTO\u00a0<\/span>TABLE\u00a0<\/span>lt_mara\r\n\u00a0\u00a0WHERE\u00a0<\/span>matnr\u00a0IN\u00a0<\/span>s_matnr.<\/span>\r\n\r\n\u00a0\u00a0IF\u00a0<\/span>sy-<\/span>subrc\u00a0=\u00a0<\/span>0<\/span>.<\/span>\r\n\u00a0\u00a0\u00a0\u00a0LOOP\u00a0<\/span>AT\u00a0<\/span>lt_mara\u00a0INTO\u00a0<\/span>DATA<\/span>(<\/span>ls_matnr)<\/span>.<\/span>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0WRITE<\/span>:\u00a0<\/span>\/\u00a0ls_matnr-<\/span>matnr,<\/span>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ls_matnr-<\/span>ernam,<\/span>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ls_matnr-<\/span>ersda.<\/span>\r\n\u00a0\u00a0\u00a0\u00a0ENDLOOP<\/span>.<\/span>\r\n\u00a0\u00a0ELSE<\/span>.<\/span>\r\n\u00a0\u00a0\u00a0\u00a0WRITE<\/span>:\u00a0<\/span>\/\u00a0'No\u00a0data\u00a0<\/span>found'.<\/span>\r\n\u00a0\u00a0ENDIF<\/span>.<\/span>\r\n\r\n\u00a0\u00a0\"\u00a0END-OF-SELECTION<\/span>\r\n\r\nEND-OF-SELECTION<\/span>.<\/span>\r\n\u00a0\u00a0WRITE<\/span>:\u00a0<\/span>\/\u00a0'>>\u00a0End\u00a0<\/span>of\u00a0<\/span>selection\u00a0processing.<\/span>'.<\/span>\r\n\r\n\u00a0\u00a0\"\u00a0TOP-OF-PAGE<\/span>\r\n\r\nTOP-OF-PAGE<\/span>.<\/span>\r\n\u00a0\u00a0WRITE<\/span>:\u00a0<\/span>\/\u00a0'Material\u00a0Master\u00a0Report'.<\/span>\r\n\u00a0\u00a0WRITE<\/span>:\u00a0<\/span>\/\u00a0'-<\/span>--<\/span>--<\/span>--<\/span>--<\/span>--<\/span>--<\/span>--<\/span>--<\/span>--<\/span>--<\/span>--<\/span>-'.<\/span>\r\n\r\n\u00a0\u00a0\"\u00a0AT\u00a0LINE-SELECTION<\/span>\r\n\r\nAT\u00a0<\/span>LINE-SELECTION<\/span>.<\/span>\r\n\u00a0\u00a0MESSAGE\u00a0<\/span>'You\u00a0clicked\u00a0a\u00a0line!'\u00a0TYPE\u00a0<\/span>'I'.<\/span><\/span> <\/code><\/pre>\n
Output:
\nExecute
\n<\/p>\n

\n<\/p>\n<\/div>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","question-category":[158],"question_tags":[178,267,268,189,177],"class_list":["post-7342","question","type-question","status-publish","hentry","question-category-abap","question_tags-abap","question_tags-classical-report","question_tags-event","question_tags-report","question_tags-sap"],"_links":{"self":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/question\/7342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/question"}],"about":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/types\/question"}],"author":[{"embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7342"}],"wp:attachment":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7342"}],"wp:term":[{"taxonomy":"question-category","embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fquestion-category&post=7342"},{"taxonomy":"question_tags","embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fquestion_tags&post=7342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}