How to hide/show and move screenelements at runtime

Question

Hi Guys
    Currently, i have a requirment that, in the same screen, when user choose different different option in the dropdown list, there should be different screenelements and table control with different columns showing below it.
Now, i have two plans below:
1), hide/show and move position of screen elements and table control at runtime
2), call different subscreen
I hope i can take the first way since the second way will modify structure of program ( As it is infotype screen ), any one knows how to implement the first solution?

Answer 1

Hi,
I would suggest you to call different subscreens and load them dynamically based on your parameters.Since different subscreen are called your coding and functionality could also be seperated by writing in the PAI and PBO of the correspondiong Screens.
if you have decided to go by your first method then try the below code.
a) if it is normal UI elements like text box etc
LOOP AT SCREEN.
    IF <var> = ' value '.
        screen-invisible = '0'.
        MODIFY SCREEN.
  endif
ENDLOOP.
Here <var> refers to the screen field name and value refers to its value.
b) To hide columns in a Table control.
DATA cols LIKE LINE OF tc-cols.
  LOOP AT tc-cols INTO cols.
    IF cols-screen-group1 = 'G1'.
      cols-invisible = 'X'. "HIDE THIS COLUMN
      MODIFY tc-cols
      FROM cols
      TRANSPORTING invisible.
    ENDIF.
    CLEAR cols.
  ENDLOOP.
PS: here TC refers to the name of the table control.
Lemme know if you face any problems.
Cheers,
RK