ALV Functionality in WD Java Tables

Hi experts,
I need to include standard ALV functionality on a table in WD Java. I have to be able to change and save layouts, Sort, Filter table, calculate totals on integer columns etc.
Is there any standard method to do so?
Any help or suggestions on how do I go about doing this?
Regards,
Reema.

Hi Reema,
  Please go through following link.
/people/sap.user72/blog/2006/05/04/enhancing-tables-in-webdynpro-java-150-custom-built-table-utilities
Regards,
Ganga.

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    The table structure contains the fields:
         I_EVENTS-NAME: Name of the Callback event.
    I_EVENTS-FORM: Name of the form routine that should be called in the calling program at the event.
    Only events with a form routine name are processed.
    The I_EVENTS table returns with the following possible constants:
    1.     Slis_ev_item_data_expand TYPE slis_formname VALUE 'ITEM_DATA_EXPAND'.     
    Only relevant for hierarchical-sequential lists using the layout parameter IS_LAYOUT-EXPAND_FIELDNAME of the structure IS_LAYOUT. Exit for passing item entries (ITEM table) for a header record that was expanded interactively by the user.
    2.     Slis_ev_reprep_sel_modify TYPE slis_formname VALUE 'REPREP_SEL_MODIFY'.
    RS_SELFIELD-TABINDEX contains the header table index for which the item entries are to       be put in the global item output table (T_OUTTAB_SLAVE). The Callback is only called if ALV has no items for a header that is to be expanded.
    RFLG_ALL is passed with 'X' if the user shows all items. The application must ensure that    entries are not repeated in the item table.
        RS_SELFIELD is initial in this case.         
    3.     Slis_ev_caller_exit_at_start TYPE slis_formname VALUE 'CALLER_EXIT'.
    Is called at the beginning of the function module to make special settings. It is not usually used.          
    4.     Slis_ev_user_command TYPE slis_formname VALUE 'USER_COMMAND'.
    As this is a frequently-used Callback event, the form routine can also be passed        directly in the interface by passing the user command in the IMPORTING parameter           I_CALLBACK_USER_COMMAND.
    5.     Slis_ev_top_of_page TYPE slis_formname VALUE 'TOP_OF_PAGE'.
       Equivalent to the list processing TOP-OF-PAGE event.           
    6.     Slis_ev_top_of_coverpage TYPE slis_formname VALUE 'TOP_OF_COVERPAGE'.       
    The selection information and list status are output together (if they exist) on a separate page by default
    7.     Slis_ev_end_of_coverpage TYPE slis_formname VALUE 'END_OF_COVERPAGE'.       
    Analogously to TOP_OF_COVERPAGE the user can add other information
    to the information output by ALV (selection information, list status) at this event.
    8.     Slis_ev_foreign_top_of_page TYPE slis_formname VALUE ‘FOREIGN_TOP_OF_PAGE'.
    The Top-of-page event is always processed in ALV and is only passed to the caller via the Callback mechanism. This is still the case if the caller, e.g. by a user action, processes a branch list which was not formatted by ALV (e.g. a popup with additional information about the list record selected and displayed by ALV).
    In this case, top-of-page cannot be formatted by ALV analogously to the basic list, it must be handled completely by the caller. The event top-of-page still occurs in ALV. When ALV notices a top-of-page which was not caused by an ALV output, the form routine in FOREIGN_TOP_OF_PAGE is called.
    9.     Slis_ev_foreign_end_of_page TYPE slis_formname VALUE 'FOREIGN_END_OF_PAGE'.  
    The event end-of-page is always processed in ALV and only passed to the caller via callback. This is still the case, e.g. when the caller processes a details list which was not formatted by ALV (e.g. a popup with further information about selected list records which were displayed by ALV).
    In this case, end-of-page cannot be formatted by ALV analogously to the basic list, it must be handled completely by the caller. The event end-of-page still occurs in ALV. When ALV notices an end-of-page that was not caused by an ALV output, the form routine in FOREIGN_END_OF_PAGE is called.                             
    10.     Slis_ev_pf_status_set TYPE slis_formname VALUE 'PF_STATUS_SET'.
    If a user list status is to be set, it must be done in the form routine assigned to this event. The ALV function codes, which must not be active, are in the Parameter RT_EXTAB. This table must be passed with the SET PF-STATUS command (with inactive user function codes as well, if necessary).
    The STANDARD status of the function group SALV should be used as a          template for a user-specific status. As this is a frequently used Callback event, its form routine can also be passed directly in the interface in the IMPORTING parameter I_CALLBACK_PF_STATUS_SET.
    11.     Slis_ev_list_modify TYPE slis_formname VALUE 'LIST_MODIFY'.     
    LIST_MODIFY USING R_TABNAME TYPE SLIS_TABNAME
                                             R_INDEX LIKE SY-TABIX
                                             R_INDEX_ITEM LIKE SY-TABIX
                                             R_INDEX_SUM LIKE SY-TABIX.
    12.     Slis_ev_top_of_list TYPE slis_formname VALUE 'TOP_OF_LIST'.  
    Information output at the start of the list     
    13.     Slis_ev_end_of_page TYPE slis_formname VALUE 'END_OF_PAGE'.
    Information output at the end of a page. This is only called for printing.
    14.     Slis_ev_end_of_list TYPE slis_formname VALUE 'END_OF_LIST'.     
    Information output at the end of the list
    15.     Slis_ev_after_line_output TYPE slis_formname VALUE 'AFTER_LINE_OUTPUT'.
    Output information after each output line. Should only be used in justified cases because it costs a lot of performance.
    16.     Slis_ev_before_line_output TYPE slis_formname VALUE   'BEFORE_LINE_OUTPUT'.       
    Output information before each output line. Should only be used in justified cases because it costs a lot of performance.         
    17.     Slis_ev_subtotal_text TYPE slis_formname VALUE  'SUBTOTAL_TEXT'.                        
    This event table (I_EVENTS) is now checked with the desired constants. If the desired constant is found, then the corresponding field for the FORM NAME is populated with the name of the routine containing the corresponding event.
    Sample code :
    FORMNAME_TOP_OF_PAGE TYPE SLIS_FORMNAME VALUE 'TOP_OF_PAGE',
    FORMNAME_END_OF_PAGE TYPE SLIS_FORMNAME VALUE 'END_OF_PAGE', FORMNAME_USER_COMMAND TYPE SLIS_FORMNAME VALUE 'USER_COMMAND'.
    DATA: L_I_EVENT TYPE SLIS_ALV_EVENT.
      CALL FUNCTION 'REUSE_ALV_EVENTS_GET'
           EXPORTING
               I_LIST_TYPE = 0
           IMPORTING
                ET_EVENTS   = I_EVENTS.
      READ TABLE I_EVENTS WITH KEY NAME = SLIS_EV_TOP_OF_PAGE
                               INTO L_I_EVENT.
      IF SY-SUBRC = 0.
        MOVE FORMNAME_TOP_OF_PAGE TO L_I_EVENT-FORM.
        APPEND L_I_EVENT TO I_EVENTS.
      ENDIF.
      READ TABLE I_EVENTS WITH KEY NAME = SLIS_EV_END_OF_PAGE
                               INTO L_I_EVENT.
      IF SY-SUBRC = 0.
        MOVE FORMNAME_END_OF_PAGE TO L_I_EVENT-FORM.
        APPEND L_I_EVENT TO I_EVENTS.
      ENDIF.
      CLEAR L_I_EVENT.
      READ TABLE I_EVENTS WITH KEY NAME = SLIS_EV_USER_COMMAND
                               INTO L_I_EVENT.
      IF SY-SUBRC = 0.
        MOVE FORMNAME_USER_COMMAND TO L_I_EVENT-FORM.
        APPEND L_I_EVENT TO I_EVENTS.
      ENDIF.
    This will prepare the events table for the report.
    The report will contain three forms for the above events:
    1.     FORM TOP_OF_PAGE : This form will contain the top of page event for the report i.e header etc
    Using the function module ‘REUSE_ALV_COMMENTARY_WRITE’, the internal table containing the headings for top of page event can be passed to the list output. Also, any logo specific to the report can be passed to the function module.
    2.     FORM END_OF_PAGE : This form will contain the end of page event for the report i.e footer etc
    3.     FORM USER_COMMAND : This form will contain the desired user command i.e pick/line selection
    Step 5
    A layout is build for the report output list description USING the internal table declared above (I_LAYOUT).
    Output list description structure.
         The parameters are described under the following heads:
    •     Display options
    •     Exceptions
    •     Totals
    •     Interaction
    •     Detail screen
    •     Display variants (only for hierarchical-sequential lists)
    •     Color
    •     Other
    The layout table is of type slis_layout_alv_spec and has the following fields:
    Display options                                                
    1. Colwidth_optimize (1) TYPE c: This parameter optimizes the length of the different columns in the output. The width of the different col. now depends on the max. Length of the data in the column.
    Value set: SPACE, 'X'
    'X' = optimizes the column width so that all contents are displayed completely.                   
    2. No_colhead(1) TYPE c : This parameter suppresses the column headings                    
    Value set: SPACE, 'X'.
    'X' = column headers are not output
    3. No_hotspot(1) TYPE c :  The heading of the report output are not output as hotspot.       
    Value set: SPACE, 'X'.
    'X' = column headers are not output as hotspot
    4. Zebra(1) TYPE c : The report is output in the striped pattern.             
    Value set: SPACE, 'X'.
    'X' = striped pattern (e.g. for wide lists)
    5. No_vline(1) TYPE c : The report output contains columns only separated by space and no lines.  It is not relevant for: hierarchical-sequential lists and multiple-line lists.
    Value set: SPACE, 'X'.
    'X' = columns separated by SPACE
    6. No_min_linesize(1) TYPE c : The report  line size is equal to the width of the list. It is not relevant for block lists.
    Value set: SPACE, 'X’.
    'X' = line size depends on list width
    '  ' = Line size is set to 80 or MIN_LINESIZE (if > 0) .
    7. Min_linesize LIKE sy-linsz: The report output contains a minimum possible length of line. If initial min_linesize is set to 80 by default, then this parameter is used to customize it. The prerequisite for this is that the parameter no_min_linesize should be ' '.
    Value set: 0, 10 - 250
    If the list is wider, the format uses the list width (maximum 250 or MAX_LINESIZE (if > 0)).
    8. Max_linesize LIKE sy-linsz: The default max. Linesize is 250. To change this default value, this parameter can interactively-define the maximum list width setting.
    Value set: 0, 80 - 1020
    9. Window_titlebar LIKE rsmpe-tittext: To set the titlebar on the report output.                            
               10. No_uline_hs(1) TYPE c.
    Exceptions                                                 
    11. Lights_fieldname TYPE slis_fieldname: Internal output table field containing the codes of exceptions to be output.
                      Output table field code:  '1' = red traffic light
                                    '2' = yellow traffic light
                                         '3' = green traffic light Fieldname for exception 
         Value set: SPACE, internal output table field name.
    12. Lights_tabname TYPE slis_tabname: Name of the internal output table that contains the field in the parameter LIGHTS_FIELDNAME. If LIGHTS_FIELDNAME is not empty, this field must also be filled for hierarchical-sequential lists. Only relevant for hierarchical-sequential lists.
    .     Value set: SPACE, internal output table name.
    13. Lights_rollname LIKE dfies-rollname: The documentation of this data element is displayed when you call F1 help for an exception column.
    Value set: SPACE, data element name.
               14. Lights_condense(1) TYPE c : If a list record is output with 'red traffic light', each
               Subtotal that includes this record is also output with 'red traffic light'.
               Value set: SPACE, 'X'
               'X' = the 'maximum' exception of the items in the subtotal is output at subtotal level.
    Sums                                                       
    15. No_sumchoice(1) TYPE c : This parameter allows the choice for summing up
    Only by fieldcatalog.
    Value set: SPACE, 'X'
    'X' = fields which are to be summed, passed by the calling program (FIELDCAT-DO_SUM = 'X'). The user should not be able to change this value interactively.
    16. No_totalline(1) TYPE c : Removes the option of having totals after sub-totals.
    Value set: SPACE, 'X'
    'X' = no total record is to be output. Subtotals can still be calculated and output. The fields in the subtotals are flagged DO_SUM = 'X' in the field list.
    17. No_subchoice(1) TYPE c : Does not allow the user to interactively change the field chosen for subtotals.
    Value set: SPACE, 'X'
    'X' = value whose change triggers subtotals, provided by the calling program. The user should not be able to change this value interactively.
    18. No_subtotals(1) TYPE c : No subtotals possible          
    Value set: SPACE, 'X'
    'X' = no subtotals.
    19. Numc_sum(1)  TYPE c : Totals only possible for NUMC-Fields.
    20. No_unit_splitting TYPE c: No separate total lines by inh.units   
    21.totals_before_items TYPE c: Display totals before the items   
    22. Totals_only(1) TYPE c :  Show only totals      
    Value set: SPACE, 'X'
    'X' = only total records are output.
    23. Totals_text(60) TYPE c : Text for 1st col. in totals   
    Value set: SPACE, string (max.60)
    ' ' = The first column in the total record contains an appropriate number of '*'s to indicate the total by default. If the first column is wide enough, the string 'Total' is output after the asterisks.
    'String’ = The string passed is output after the total indicated by '*', if the column is wide enough.
    24. Subtotals_text(60) TYPE c : Texts for subtotals
    Value set: SPACE, string (max.60)
    ' ' = In the first column of subtotal records, the subtotal is indicated by an appropriate number of '*' by default. If the first column is not a subtotal criterion, the string 'Total' is output after the asterisks, if the column is wide enough.
    'String’ = the string passed is output after the subtotal indicated by '*', if the column is wide enough and the first column is not a subtotal criterion. If it is a subtotal criterion, its value is repeated after the total, if the column is wide enough.
    Interaction                                                      
    25. Box_fieldname TYPE slis_fieldname: Fieldname for checkbox in the report output. If the list has checkboxes at the start of records (for selecting several records), this parameter contains the internal output table field name indicated by the checkbox selection column. The field is a checkbox at the start of list records without a list header.
    Value set: SPACE, internal output table field name
    26. Box_tabname TYPE slis_tabname: Name of the internal output table that contains the field in the parameter BOX_FIELDNAME. If BOX_FIELDNAME is not empty, this field must also be filled for hierarchical-sequential lists.
    Value set: SPACE, internal output table name.
    27. Box_rollname LIKE dd03p-rollname: rollname for checkbox          
    28. Expand_fieldname TYPE slis_fieldname: fieldname flag ‘expand’. The user can show or hide the items by clicking on the folder symbol (hotspot). If the items for a header entry are only to be read by the calling program and passed to ALV when a header has been expanded interactively, this can be controlled via the CALLBACK event        'ITEM_DATA_EXPAND'.
    29. Hotspot_fieldname TYPE slis_fieldname: Used to make the fieldname flag hotspot.
    30. No_input(1) TYPE c : The fields are only display fields.
            Value set: SPACE, 'X'
    'X' = all ready-for-input fields in a list are displayed as not ready-for-input. (Record selection checkboxes and fields which can be made ready-for-input via the field list parameter FIELDCAT-INPUT = 'X')
    31. F2code LIKE sy-ucomm: To assign an ALV standard function code to double-click (F2), assign the function code to this parameter. Ex.: to assign the ALV standard function 'Detail' ('&ETA') to F2.
                      => LAYOUT-F2CODE = '&ETA'.
    Value set: SPACE, function code
    32. Confirmation_prompt: confirm. Prompt when leaving       
    Value set: SPACE, 'X'
    'X' = if one of the functions ‘Back (F03)', ‘Exit (F15)' or ‘Cancel (F12)' occurs, a confirmation prompt appears.
    33. Key_hotspot(1) TYPE c : The key fields are displayed as hotspot. The columns defined in the field catalog as key fields (FIELDCAT-KEY = 'X') are output as hotspots, i.e. clicking on a key column (highlighted in color in the list) calls the function under F2.
    Value set: SPACE, 'X'.
    34. Reprep(1) TYPE c :  report report interface active.     
    35. Group_buttons(1) TYPE c :  group-buttons for COL1 - COL5 . Group output fields via FIELDCAT-SP_GROUP in the field list, and pass the group name to the list module in the interface parameter IT_SPECIAL_GROUPS.           
    Value set: SPACE, 'X'.
    36. No_keyfix(1) TYPE c : Used to make the key fields scrollable.
    Value set: SPACE, 'X'.
    ' ' = The key columns defined in the field catalog by FIELDCAT-KEY = 'X' are fixed in the list output. These columns do not scroll horizontally. The item table key columns are fixed in hierarchical-sequential lists. The header table key fields are not considered here.
    'X' = key columns not fixed
    37. Get_selinfos(1) TYPE c : To read selection screen.
    Value set: SPACE, 'X'.
    If the calling program is a report with an ABAP/4 selection screen, setting this parameter makes ALV read the selection screen again. If the selections are read successfully, a pushbutton, via which the user can call a popup which lists the report selections in a simple form, becomes active on the results list output by ALV.
    38.     group_change_edit(1) TYPE c :  Settings by user for new group     
    Value set: SPACE, 'X'
    'X' = the user can enter a format option for each sort criterion in the sort/subtotal popup, for the list format when this value changes (e.g. new page or underline).
    39.     No_scrolling(1) TYPE c : Does not allow scrolling of the list to the right.
    Value set: SPACE, 'X'.
    40. Expand_all(1) TYPE c : Expand all positions                   
    Detailed screen                                                    
    40.     Detail_popup(1) TYPE c : show detail in popup.
    Value set: SPACE, 'X'
    '  '  = List record detail display in full-screen mode, with top-of-page.
    'X'  = list record detail display in popup (without top-of-page).
    41. Detail_initial_lines(1) TYPE c : show also initial lines   
    Value set: SPACE, 'X'
    '  ' = Only fields whose contents are not initial are output in the detail view.
    'X' = initial field contents are also output in detail.
    41.     detail_titlebar(30) type c : Titlebar for detail screen
    Value set: SPACE, string (max.30)
    ` ' = ' Detail: Display' is output as the title of the detail window.
                  'String’ = the string passed is output as the title of the detail window. 
    Display variants                                                   
    42. Header_text (20) TYPE c: Text for header button. Only relevant for hierarchical-sequential lists. You can toggle between display field and field list views via pushbuttons in the display variant definition popup for hierarchical-sequential lists. The views refer to the hierarchy level of the fields. This is technically a toggle between the header table and item table fields.   
    Value set: SPACE, CHAR (20)
    ' ' = The header table field pushbutton text is 'Header' by default.
    CHAR (20) = header table field pushbutton text.
    43.item_text(20) TYPE c : Text for item button. Only relevant for hierarchical-sequential lists. You can toggle the view between the display fields and the field list via pushbuttons in the display variant definition popup for hierarchical-sequential lists. The views refer to the hierarchy level of the fields. This is technically a toggle between the header table and item table fields.        
    Value set: SPACE, CHAR (20)
    ' ' = The pushbutton text for the item table fields is 'Item' by default.
    CHAR (20) = item table field pushbutton text.
    44.default_ item(1) TYPE c : Items as default. Only relevant for hierarchical-sequential lists.
         Value set: SPACE, 'X'
    ' ' = The header table fields are displayed by default in the display variant definition popup. The user can switch to the item table fields interactively.
    'X' = the item table fields are displayed by default in the display variant Definition Popup.    The user can switch to the header table fields interactively.
    Colour                                                       
    45. Info_fieldname TYPE slis_fieldname: infofield for listoutput. A whole list record can be colored individually using a color code in a column of the internal output table for the record. Assign the name of the field containing the color code to this parameter.
    Value set: SPACE, internal output table field name
    The internal output table field must be of type CHAR(3).
    The code must have the following syntax:  'Cxy':
            C = color (all codes must start with 'C')
            X = color number ('1'-'9')
            Y = bold ('0' = off, '1' = on)
    46. Coltab_fieldname TYPE slis_fieldname: Cells can be colored individually using a color code which is contained in a column of the internal output table for the record containing the cell. Assign the name of the field to this parameter.       
    Others                                                
    47. List_append(1) TYPE c :  no call screen. It is only useful to output block-lists without specifying the above modules if the number of list blocks exceeds, or may exceed, the maximum number specified in the block module documentation. These operations are not possible for user-defined block lists.
    Example code :
           I_LAYOUT-f2code       = ws_fcode.
           I_LAYOUT-zebra        = 'X'.
    I_LAYOUT-colwidth_optimize = 'X'.
    I_LAYOUT-no_keyfix = 'X'.
    I_LAYOUT-get_selinfos = 'X'.
    I_LAYOUT-no_hotspot = 'X'.
           I_LAYOUT-no_input = 'X'.
    I_LAYOUT-hotspot_fieldname = FIELDNAME.
    I_LAYOUT-no_input          = ‘X’.
    I_LAYOUT-no_vline          = `X’.
    I_LAYOUT-no_colhead        = ‘ ‘.
    I_LAYOUT-lights_condense   = ` `.
    I_LAYOUT-totals_text       = ` `.
    I_LAYOUT-subtotals_text    = ` `.
    I_LAYOUT-totals_only       = ` `.
    I_LAYOUT-key_hotspot       = ‘X’.
    I_LAYOUT-detail_popup      = ‘X’.
    I_LAYOUT-group_change_edit = ‘X’.
    I_LAYOUT-GROUP_BUTTONS     = ‘X’.
    Step 6
    This step is required to get the selection screen information in the report output.
    The prerequisite for this is to set the parameter LAYOUT-GET_SELINFOS of the IMPORTING structure.
    The parameters to be passed in the IS_SEL_HIDE table are:
    o mode:              'R' = only the entries passed in the internal table IS_SEL_HIDE-T_ENTRIES       
    Are output in the pop up. Selection info, which the list tool read in the selection screen (when called by a report with a selection screen), is replaced by the values passed.
    'S' = the selection info which the list tool read in the selection screen of the calling report are modified by the entries in the table IS_SEL_HIDE-T_ENTRIES.
    o t_entries:         Selection info table
    o t_entries-mode:   'A' = output the selection info for the current table record in the info popup.
    'D' = do not output select option or SELNAME parameter selection info in   the popup.
    o t_entries-selname: (only used in t_entries-mode = 'D') : Name of the select option or parameter.
    The following table fields are only used in t_entries-mode = 'A'. They contain the selection information to be added.
    •     t_entries-field:  DDIC field name of the field for which selection information is to be output.
    •     t_entries-table:  DDIC table names of t_entries-field.
    •     t_entries-stext:  Field name in info popup.
    •     If t_entries-field and t_entries-table have been entered, this text is taken from DDIC.
    •     t_entries-valuf:  Selection condition 'from' value (external format)
    •     t_entries-valut:  Selection condition 'to' value (external format)
    •     t_entries-sign0:  (I)nclusive (E)xclusive
    •     t_entries-option:  All values of the select options Option field allowed.
    Step 6
    The Table IT_SORT is populated with the sort criteria for the different fields.
    The caller specifies the sorting and/or subtotaling of the basic list in the internal table IT_SORT.
    This internal table has the following fields:
         o spos :  Sort sequence
         o fieldname :  Internal output table field name
         o tabname : Only relevant for hierarchical-sequential lists. Name of the internal output table.
         o up : 'X' = sort in ascending order
         o down : 'X' = sort in descending order
         o subtot : 'X' = subtotal at group value change
         o group : '* ' = new page at group value change ,'UL' = underline at group value change
                             Step 7
    The final step in the output of the report is the use of two ALV functions modules.
    1.     REUSE_ALV_FIELDCATALOG_MERGE
    2.     REUSE_ALV_LIST_DISPLAY
    The first function module is used to pass the field catalog to the report output and merge it with the internal output table.
    FUNCTION reuse_alv_fieldcatalog_merge.                                
    ""Lokale Schnittstelle:                                             
    *” IMPORTING                                                    
    *"             VALUE(I_PROGRAM_NAME) LIKE  SY-REPID OPTIONAL          
    *"             VALUE(I_INTERNAL_TABNAME) TYPE  SLIS_TABNAME OPTIONAL  
    *"             VALUE(I_STRUCTURE_NAME) LIKE  DD02L-TABNAME OPTIONAL   
    *"             VALUE(I_CLIENT_NEVER_DISPLAY) TYPE  SLIS_CHAR_1        
    *"                             DEFAULT 'X'                            
    *"             VALUE(I_INCLNAME) LIKE  TRDIR-NAME OPTIONAL            
    *"       CHANGING                                                     
    *"             VALUE(CT_FIELDCAT) TYPE  SLIS_T_FIELDCAT_ALV           
    *"       EXCEPTIONS                                                   
    *"              INCONSISTENT_INTERFACE                                
    *"              PROGRAM_ERROR                                         
    Import parameters 
    I_PROGRAM_NAME: Program in which the internal output table is declared and populated   
    I_INTERNAL_TABNAME: Internal output table name
    I_STRUCTURE_NAME: Structure name (structure, table, and view)
    I_CLIENT_NEVER_DISPL: Hide client fields default ‘X’
    I_INCLNAME: Data declarations include name
    CHANGING parameter
    CT_FIELDCAT: Field catalog with field descriptions
    The variant based on a program-internal table should only be used for rapid prototyping since the following restrictions apply:                                                                               
    1.   Performance is affected since the code of the table definition must always be read and interpreted at runtime.                                                                               
    2.   Dictionary reference are only considered if the keywords LIKE or  INCLUDE STRUCTURE (not TYPE) are used.
    Step 8
    The other function module is used to display the internal output table with the contents
    FUNCTION reuse_alv_list_display.                                          
    ""Lokale Schnittstelle:                                                 
    *” IMPORTING                                                        
    *"             VALUE(I_INTERFACE_CHECK) DEFAULT SPACE                     
    *"             VALUE(I_CALLBACK_PROGRAM) LIKE  SY-REPID DEFAULT SPACE     
    *"             VALUE(I_CALLBACK_PF_STATUS_SET) TYPE  SLIS_FORMNAME        
    *"                             DEFAULT SPACE                              
    *"             VALUE(I_CALLBACK_USER_COMMAND) TYPE  SLIS_FORMNAME         
    *"                             DEFAULT SPACE                              
    *"             VALUE(I_STRUCTURE_NAME) LIKE  DD02L-TABNAME OPTIONAL       
    *"             VALUE(IS_LAYOUT) TYPE  SLIS_LAYOUT_ALV OPTIONAL            
    *"             VALUE(IT_FIELDCAT) TYPE  SLIS_T_FIELDCAT_ALV OPTIONAL      
    *"             VALUE(IT_EXCLUDING) TYPE  SLIS_T_EXTAB OPTIONAL            
    *"             VALUE(IT_SPECIAL_GROUPS) TYPE  SLIS_T_SP_GROUP_ALV         
    *"                             OPTIONAL                                   
    *"             VALUE(IT_SORT) TYPE  SLIS_T_SORTINFO_ALV OPTIONAL          
    *"             VALUE(IT_FILTER) TYPE  SLIS_T_FILTER_ALV OPTIONAL          
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    http://www.sapfans.com/forums/viewtopic.php?t=58286
    http://www.sapfans.com/forums/viewtopic.php?t=76490
    http://www.sapfans.com/forums/viewtopic.php?t=20591
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    http://www.sapfans.com/forums/viewtopic.php?t=20386
    http://www.sapfans.com/forums/viewtopic.php?t=85191
    http://www.sapfans.com/forums/viewtopic.php?t=88401
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    http://www.sapfans.com/forums/viewtopic.php?t=60550
    http://www.sapfans.com/forums/viewtopic.php?t=16629
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    7. How can I set the cell color in ALV?
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    8. How do I print a logo/graphics in ALV?
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    http://www.sapfans.com/forums/viewtopic.php?t=35498
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    10. How can I use ALV for reports that are going to be run in background?
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    http://www.sapfans.com/forums/viewtopic.php?t=19224
    11. How can I display an icon in ALV? (Common requirement is traffic light icon).
    http://www.sapfans.com/forums/viewtopic.php?t=79424
    http://www.sapfans.com/forums/viewtopic.php?t=24512
    12. How can I display a checkbox in ALV?
    http://www.sapfans.com/forums/viewtopic.php?t=88376
    http://www.sapfans.com/forums/viewtopic.php?t=40968
    http://www.sapfans.com/forums/viewtopic.php?t=6919
    Go thru these programs they may help u to try on some hands on
    ALV Demo program
    BCALV_DEMO_HTML
    BCALV_FULLSCREEN_DEMO ALV Demo: Fullscreen Mode
    BCALV_FULLSCREEN_DEMO_CLASSIC ALV demo: Fullscreen mode
    BCALV_GRID_DEMO Simple ALV Control Call Demo Program
    BCALV_TREE_DEMO Demo for ALV tree control
    BCALV_TREE_SIMPLE_DEMO
    BC_ALV_DEMO_HTML_D0100
    OOPs:
    Check this for basic concepts of OOPS
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/abap%20objects/abap%20code%20sample%20to%20learn%20basic%20concept%20of%20object-oriented%20programming.doc
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/alv%20grid/abap%20code%20sample%20to%20display%20data%20in%20alv%20grid%20using%20object%20oriented%20programming.doc
    Tabstrip
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/alv%20grid/abap%20code%20sample%20for%20tab%20strip%20in%20alv.pdf
    Editable ALV
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/alv%20grid/abap%20code%20sample%20to%20edit%20alv%20grid.doc
    Tree
    http://www.sapdevelopment.co.uk/reporting/alv/alvtree/alvtree_usrint.htm
    General Tutorial for OOPS
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/an%20easy%20reference%20for%20alv%20grid%20control.pdf
    Rewords some points if it is helpful.
    Rgds,
    P.Naganjana Reddy

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