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Leave list processing in simple words

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former_member649377
Explorer

‎2020 Jan 13 2:26 PM

3,820

can someone explain me these following terms in layman way or with examples- list processor, screen list, list dynpro, dynpro,

leave list processing, leave to list processing and the use of these.

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Sandra_Rossi
Active Contributor

‎2020 Jan 13 4:05 PM

3,752

There are 2 modes, either screen (dynpro layout) or list (WRITE):

  • During selection screen processing, it's mode screen.
  • After START-OF-SELECTION, it's mode list.
  • During CALL SCREEN, it's mode screen.
  • If you want to go from mode screen to list, use LEAVE TO LIST-PROCESSING
  • If you want to go from mode list to screen, use LEAVE LIST-PROCESSING

If you work only with screens:

  • At the end of PAI of a dynpro, the next screen is defined statically in the dynpro attributes, or overwritten dynamically at runtime using SET SCREEN
  • To leave the screen and continue after CALL SCREEN, the next screen should be set to 0
  • LEAVE SCREEN terminates the current PAI, like RETURN at each level in the stack
  • LEAVE TO SCREEN xxxx does LEAVE SCREEN + SET SCREEN xxxx at the same time

can someone explain me these following terms in layman way or with examples- list processor, screen list, list dynpro, dynpro,

leave list processing, leave to list processing and the use of these.

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Sandra_Rossi
Active Contributor

‎2020 Jan 13 2:41 PM

3,752

What don't you understand? Why do you need to understand these obsolete concepts?

All of them are described in the ABAP glossary and in the ABAP documentation.

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former_member649377
Explorer

‎2020 Jan 13 3:42 PM

3,752

what i dont understand is where and when should i use leave screen or leave list processing.

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Sandra_Rossi
Active Contributor

‎2020 Jan 13 4:05 PM

3,753

There are 2 modes, either screen (dynpro layout) or list (WRITE):

  • During selection screen processing, it's mode screen.
  • After START-OF-SELECTION, it's mode list.
  • During CALL SCREEN, it's mode screen.
  • If you want to go from mode screen to list, use LEAVE TO LIST-PROCESSING
  • If you want to go from mode list to screen, use LEAVE LIST-PROCESSING

If you work only with screens:

  • At the end of PAI of a dynpro, the next screen is defined statically in the dynpro attributes, or overwritten dynamically at runtime using SET SCREEN
  • To leave the screen and continue after CALL SCREEN, the next screen should be set to 0
  • LEAVE SCREEN terminates the current PAI, like RETURN at each level in the stack
  • LEAVE TO SCREEN xxxx does LEAVE SCREEN + SET SCREEN xxxx at the same time