ALV from Display to Change Mode

Question

Hello,
         I created an application that starts with a selection screen and then the user selects either a Create/Change/Display. Then a call screen is done in which i added an ALV with some editable fields.
The point is that when the user first selects 'Display' the ALV is all in the display mode. If he makes a BACK then goes to 'Change' the ALV is still displayed in the output mode. and vice-versa.
Is there a reason for this??
Please help

Answer 1

hi emym,
try this it may be helpful
Making ALV Grid Editable
->To make a column editable, it will be sufficient to set the field “EDIT” in the field catalog. The ALV Grid perceives if there are some editable fields and adds buttons for editing purposes. If you do not need these new buttons, you know how to exclude them.
->To make individual cells editable, we will utilize the table we used for making a cell a pushbutton. As you remember, it was of type “LVC_T_STYL”. If you have not added this inner table, add it now. For this procedure; add the name of the field to the field “FIELDNAME”, and pass “cl_gui_alv_grid=>mc_style_enabled” to make a field editable and “cl_gui_alv_grid=>mc_style_disabled” to make a field non-editable, to the field “STYLE”. You can use the one with “disable” when you make an entire column editable and want just a few of cells along it non-editable.
ps_layout-stylefname = ‘CELLSTYLES’ .
If we want our column “SEATSMAX” entirely editable except the case “CARRID” is ‘XY’ which is a rare case and we want our cells along the column ‘PLANETYPE’ editable if their respective ‘CONNID’ fields contain the value ‘02’.
Assume we have added our style table (“CELLSTYLES”) to our list data table and tell the layout structure about it and we adjust the field catalog so that the column “SEATSMAX” has the property “EDIT” set to ‘X’.
refer this:
FORM adjust_editables USING pt_list LIKE gt_list[] .
DATA ls_listrow LIKE LINE OF pt_list .
DATA ls_stylerow TYPE lvc_s_styl .
DATA lt_styletab TYPE lvc_t_styl .
LOOP AT pt_list INTO ls_listrow .
IF ls_listrow-carrid = 'XY' .
ls_stylerow-fieldname = 'SEATSMAX' .
ls_stylerow-style = cl_gui_alv_grid=>mc_style_disabled .
APPEND ls_stylerow TO lt_styletab .
ENDIF .
IF ls_listrow-connid = '02' .
ls_stylerow-fieldname = 'PLANETYPE' .
ls_stylerow-style = cl_gui_alv_grid=>mc_style_enabled .
APPEND ls_stylerow TO lt_styletab .
ENDIF .
INSERT LINES OF lt_styletab INTO ls_listrow-cellstyles .
MODIFY pt_list FROM ls_listrow .
ENDLOOP .
ENDFORM
Conditionally setting fields to be editable or non-editable
->As usual, cell based settings override entire column settings. You can dynamically switch between cases in any proper part of your execution. Just fill your inner table as required and refresh table display; for entire column settings, set or unset the property “EDIT” of the field catalog for the column and reset the field catalog using “set_frontend_fieldcatalog”.
->As the last condition to be met for editability, you must call the method “set_ready_for_input” passing ‘1’ to the parameter “i_ready_for_input”.
Using this method you can switch between editable and non-editable mode. As you guess, passing ‘0’ to the parameter while calling the method, switches to non-editable mode.
rewrad if helpful
regards,
sravanthi