Dynamic Creation of Table and assign Datasource.

Hi Experts
My scenario is like this..
There are more than one RFC models and the output list of these models I need to display in a table format.. The display should happen conditionally as per the availabity of the data in the output list..I need to display the data from multiple models at the same time the said table..
Please let me know the methods to create a table with 5 columns and also how to assign the datasource programatically..
THanks and Regards
SU

Hi,
Use only one Table View context.
Model Contexts:
RFC1,           RFC2,            RFC3
I_Attr11         I_Attr21          I_Attr31
I_Attr12         I_Attr22          I_Attr32
I_Attr13         I_Attr23          I_Attr33
I_Attr14         I_Attr24          I_Attr34
I_Attr15         I_Attr25          I_Attr35
Table Control Context:
Table
I_Attr1
I_Attr2
I_Attr3
I_Attr4
I_Attr5
Execute each model individually and loop through all model contexts...append the rows from each model context to table context.
//access the table node
IWDTableNode tableNode = wdContext.nodeTable();
IWDTableElement tableElem;
//loop thugh the models
for(int i=0; i<RFC1.size(); i++)
tableElem = tableNode.createTableElement();
tableElem.setAttr1(RFC1.getRFC1ElementAt(i).getAttr11);
tableElem.setAttr2(RFC1.getRFC1ElementAt(i).getAttr12);
tableElem.setAttr3(RFC1.getRFC1ElementAt(i).getAttr13);
tableElem.setAttr4(RFC1.getRFC1ElementAt(i).getAttr14);
tableElem.setAttr5(RFC1.getRFC1ElementAt(i).getAttr15);
tableNode.addElement(tableElem);
//similarly loop thrugh the remaining 2 models and append the table context
Regards
Srikanth

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Cheers
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<b>PROGRAM zdynfieldcat.
Simple test of dynamic ITAB with user defined (not ddic) fields
Build dynamic fcat
use ALV grid to display and edit.
*When edit mode set to 1 toolbar gives possibility of adding and
*deleting rows.
*Define subclass of cl_gui_alv_grid so we can use protected attributes
*and methods.
Add event handler to intercept user entering data and pressing the
*ENTER key.
When enter key is pressed get actual value of NEW table (all rows)
rather than just the changed data.
*use new RTTI functionality to retrieve internal table structure
*details.
Create a blank screen 100 with a custom container called CCONTAINER1.
James Hawthorne
include <icon>.
define any old internal structure NOT in DDIC
types: begin of s_elements,
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       anyfield2(20) type c,
       anyfield3(20) type c,
       anyfield4(20) type c,
       anyfield5(11) type n,
       end of s_elements.
types: lt_rows type lvc_t_roid.
Note new RTTI functionality allows field detail retrieval
at runtime for dynamic tables.
data:   wa_element type s_elements ,
        wa_data type s_elements,
        c_index type sy-index,
        c_dec2 type s_elements-anyfield5,
        wa_it_fldcat type lvc_s_fcat,
        it_fldcat type lvc_t_fcat,
        lr_rtti_struc TYPE REF TO cl_abap_structdescr,    "RTTI
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        struct_grid_lset type lvc_s_layo,
        l_valid type c,
        new_table type ref to data.
field-symbols: <dyn_table> type standard table,
               <actual_tab> type standard table,
               <fs1> type ANY,
               <FS2> TYPE TABLE.
data: grid_container1 type ref to cl_gui_custom_container.
class lcl_grid_event_receiver definition deferred.
data: g_event_receiver type ref to lcl_grid_event_receiver.
data: ls_modcell type LVC_S_MODI,
      stab type ref to data,
      sdog type s_elements.      .
class lcl_grid_event_receiver definition.
public section.
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         for event data_changed of cl_gui_alv_grid
             importing er_data_changed,
       toolbar for event toolbar of cl_gui_alv_grid
                 importing e_object
                           e_interactive,
      user_command for event user_command of cl_gui_alv_grid
                 importing e_ucomm.
endclass.
*implementation of Grid event-handler class
class lcl_grid_event_receiver implementation.
method handle_data_changed.
code whatever required after data entry.
various possibilites here as you can get back Cell(s) changed
columns or the entire updated table.
Data validation is also possible here.
perform check_data using er_data_changed.
endmethod.
Method for handling all creation/modification calls to the toolbar
method toolbar.
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Define Custom Button in the toolbar
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    move space to ls_toolbar-disabled.
    move 'Edit' to ls_toolbar-text.
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    move 'Click2Edit' to ls_toolbar-quickinfo.
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method user_command.
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         perform init_grid.
      when 'UPDA'.          "From Tool bar
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        perform update_table.
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endclass.
class zcltest definition inheriting from cl_gui_alv_grid.
define this as a subclass so we can access the protected attributes
of the superclass cl_gui_alv_grid
public section.
methods: constructor, disp_tab.
endclass.
need this now to instantiate object
as we are using subclass rather than the main cl_gui_alv_grid.
class zcltest implementation.
METHOD constructor.
CALL METHOD super->constructor
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endmethod.
method disp_tab.
FIELD-SYMBOLS: <outtab> TYPE STANDARD TABLE.
break-point 1.
mt_outtab is the data table held as a protected attribute
in class cl_gui_alv_grid.
ASSIGN me->mt_outtab->* TO <outtab>. "Original data
do whatever you want with <outtab>
contains data BEFORE changes each time.
Note that NEW (Changed) table has been obtained already by
call to form check_data USING P_ER_DATA_CHANGED
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In this method you can compare original and changed data.
Easier than messing around with individual cells.
do what you want with data in <fs2> validate / update / merge etc
endmethod.
endclass.
data :
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now created via method constructor
in the subclass zcltest.
Control Object [grid]
grid1 type ref to zcltest,
Event-Handler Object [grid_handler]
grid_handler type ref to lcl_grid_event_receiver.
start-of-selection.
call screen 100.
module status_0100 output.
now display it as grid
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perform create_dynamic_itab.
perform populate_dynamic_itab.
perform init_grid.
perform register_enter_event.
set off ready for input initially
i4 = 0.
call method grid1->set_ready_for_input
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endif.
endmodule.
module user_command_0100 input.
*PAI not needed in OO ALV anymore as User Commands are handled as events
*in method user_command.
*we can also get control if the Data entered and the ENTER is pressed by
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Control then returns to method handle_data_changed.
endmodule.
form create_dynamic_fcat.
get structure of our user table for building field catalog
Use the RTTI functionality
lr_rtti_struc ?= cl_abap_structdescr=>describe_by_data( wa_data ).
Build field catalog just use basic data here
colour specific columns as well
loop at lr_rtti_struc->components into zog.
c_index = c_index + 1.
clear wa_it_fldcat.
wa_it_fldcat-fieldname = zog-name .
wa_it_fldcat-datatype = zog-type_kind.
wa_it_fldcat-inttype =   zog-type_kind.
wa_it_fldcat-intlen =    zog-length.
wa_it_fldcat-decimals = zog-decimals.
wa_it_fldcat-lowercase = 'X'.
if c_index eq 2.
wa_it_fldcat-emphasize = 'C411'.
     endif.
    if c_index eq 3.
wa_it_fldcat-emphasize = 'C511'.
   endif.
append wa_it_fldcat to it_fldcat .
endloop.
endform.
form create_dynamic_itab.
Create dynamic internal table and assign to field sysmbol.
Use dynamic field catalog just built.
call method cl_alv_table_create=>create_dynamic_table
             exporting
                it_fieldcatalog = it_fldcat
             importing
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assign new_table->* to <dyn_table>.
endform.
form populate_dynamic_itab.
load up a line of the dynamic table
c_dec2 = c_dec2 + 11.
wa_element-anyfield1 = 'Tabbies'.
wa_element-anyfield2 = 'ger.shepards'.
wa_element-anyfield3 = 'White mice'.
wa_element-anyfield4 = 'Any old text'.
wa_element-anyfield5 = c_dec2.
append wa_element to <dyn_table>.
endform.
form check_data USING P_ER_DATA_CHANGED
           TYPE REF TO CL_ALV_CHANGED_DATA_PROTOCOL.
Get altered data back
ASSIGN   p_er_data_changed->mp_mod_rows TO <FS1>.
stab =       p_er_data_changed->mp_mod_rows.
ASSIGN STAB->* TO <FS2>.
LOOP AT <FS2> INTO sdog.
ALV grid display with altered data is now in <fs2>.
do any extra processing you want here
endloop.
now display new table
call method grid1->disp_tab.
endform.
form exit_program.
call method grid_container1->free.
call method cl_gui_cfw=>flush.
leave program.
endform.
form refresh_disp.
call method grid1->refresh_table_display.
endform.
form update_table.
The dynamic table here is the changed table read from the grid
after user has changed it
Data can be saved to DB or whatever.
loop at <dyn_table> into wa_element.
do what you want with the data here
endloop.
switch off edit mode again for next function
i4 = 0.
call method grid1->set_ready_for_input
      exporting
          i_ready_for_input = i4.
endform.
form set_input.
i4 = 1.
call method grid1->set_ready_for_input
     exporting
       i_ready_for_input = i4.
endform.
form switch_input.
if i4 = 1.
i4 = 0.
else.
i4 = 1.
endif.
call method grid1->set_ready_for_input
     exporting
       i_ready_for_input = i4.
endform.
form init_grid.
Enabling the grid to edit mode,
     struct_grid_lset-edit = 'X'. "To enable editing in ALV
     struct_grid_lset-grid_title = 'Jimbos Test'.
     call method grid1->set_table_for_first_display
       exporting
         is_layout           = struct_grid_lset
       changing
         it_outtab             = <dyn_table>
         it_fieldcatalog       = it_fldcat.
endform.
form register_enter_event.
call method grid1->register_edit_event
               exporting
                  i_event_id = cl_gui_alv_grid=>mc_evt_enter.
Instantiate the event or it won't work.
create object g_event_receiver.
set handler g_event_receiver->handle_data_changed for grid1.
endform.</b>

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IMPORTING
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*      E_STYLE_FNAME             =
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Regards
Uwe

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      group.removeAllChildren();
    for (int i = 0; i < wdContext.nodeCategory().size(); i++)
      ICategoryElement catEl = wdContext.nodeCategory().getCategoryElementAt(i);
      wdContext.nodeCategory().setLeadSelection(i);
      generateItemLists(wdContext.currentContextElement().getSelectView(), wdContext, catEl);
    //@@end
public void generateItemLists( com.sap.tc.webdynpro.progmodel.api.IWDView view, de.mgi.portaldev.bc.mdw.msi.wdp.IPrivateCRSReportView.IContextNode wdContext, de.mgi.portaldev.bc.mdw.msi.wdp.IPrivateCRSReportView.ICategoryElement category )
    //@@begin generateItemLists()
    //    ItemListBox
    IWDGroup group;
    IWDGroup catGroup;
    IWDLabel label;
    String groupId = "group_" + category.getName();
    catGroup = (IWDGroup) view.createElement(IWDGroup.class, groupId);
    IWDMatrixLayout matrLayout = (IWDMatrixLayout) catGroup.createLayout(IWDMatrixLayout.class);
    String labelId = "label_" + category.getName();
    label = (IWDLabel) view.createElement(IWDLabel.class, labelId);
    label.setText(category.getName());
    IWDMatrixData layout = (IWDMatrixData) label.createLayoutData(IWDMatrixData.class);
    layout.setVAlign(WDCellVAlign.TOP);
    String itemListId = "itemList_" + category.getName();
    IWDItemListBox itemListBox = (IWDItemListBox) view.createElement(IWDItemListBox.class, itemListId);
    label.setLabelFor(itemListId);
    IWDMatrixData itemlayout = (IWDMatrixData) itemListBox.createLayoutData(IWDMatrixData.class);
    itemListBox.bindDescriptiveText("crsReporting.category.report.name");
    IWDNodeInfo reportNodeInfo = category.nodeReport().getNodeInfo();
//    itemListBox.bindText(reportNodeInfo.getAttribute("name"));
    itemListBox.setVisibleItems(5);
    IWDMatrixHeadData matrixHead = (IWDMatrixHeadData) itemListBox.createLayoutData(IWDMatrixHeadData.class);
    IWDAction itemListAct = (IWDAction) wdThis.wdGetItemSelectAction();
    itemListBox.setOnLeadSelect(itemListAct);
//    itemListBox.bindDataSource(reportNodeInfo);
    itemListBox.bindDataSource("crsReporting.category.report");
    catGroup.addChild(label);
    catGroup.addChild(itemListBox);
    group = (IWDGroup) view.getElement("ItemListGroup");
    group.addChild(catGroup);
    //    END ITEMLIST
    //@@end
What am I doing wrong? in every ItemListbox there are only the report names of the last category.
thanks.

RowRepeater is available in WD Java since NW CE (7.1). With RowRepeater, the solution is trivial and can be done completely by declaration in view designer.
In earlier releases, you can solve it as follows (non-trivial)
- For each category, create a separate context node "Category_i" with an attribute "name"
- Inside each category node, create a non-singleton node "Reports" with an attribute "name"
- Foreach report, add a node element to the reports subnode of its category node <b>element</b>
All this has to be done using the generic context API.
On each change of the data, reset the context and re-create these nodes.
In wdDoModifyView(), check if data have changes and create UI elements programmatically.
- For each category, create a group, bind header text to category name.
- Inside each group, create a ItemListBox, bind "dataSource" to reports sub-node of category (non-singleton!) and bind "text" to text attribute of report node.
Sample code:
To build context structure:
private void createCategories()
    for (int i = 0; i < 3; ++i)
      IWDNodeInfo categoryNodeInfo = wdContext.getNodeInfo().addChild("Category" + i, null, true, CMICardinality.ONE, CMICardinality.ONE, true, null);
      IWDAttributeInfo att = categoryNodeInfo.addAttribute("name", "ddic:com.sap.dictionary.string");
      IWDNode categoryNode = wdContext.getChildNode(categoryNodeInfo.getName(), 0);
      categoryNode.getElementAt(0).setAttributeValue(att.getName(), "Category #" + i);
      IWDNodeInfo reportNodeInfo = categoryNodeInfo.addChild("Reports", null, false, CMICardinality.MANY, CMICardinality.ZERO_TO_ONE, true, null);
      IWDAttributeInfo attReportName = reportNodeInfo.addAttribute("name", "ddic:com.sap.dictionary.string");
      IWDNode reportNode = categoryNode.getChildNode("Reports", 0);
      for (int j = 0; j < 5; ++j)
        IWDNodeElement report = reportNode.createAndAddElement();
        report.setAttributeValue("name", "Report #" + j);
To recreate UI:
if (<data_have_changed>)
      IWDTransparentContainer root = (IWDTransparentContainer) view.getRootElement();
      for (int i = 0; i < 3; ++i)
        IWDNode categoryNode = wdContext.getChildNode("Category" + i, 0);
        IWDAttributeInfo attName = categoryNode.getNodeInfo().getAttribute("name");
        IWDGroup group = view.createElement(IWDGroup.class);
        root.addChild(group);
        IWDCaption header = view.createElement(IWDCaption.class);
        group.setHeader(header);
        header.bindText(attName);
        IWDNode reportsNode = categoryNode.getChildNode("Reports", 0);
        IWDAttributeInfo attReportName = reportsNode.getNodeInfo().getAttribute("name");
        IWDItemListBox list = view.createElement(IWDItemListBox.class);
        group.addChild(list);
        list.bindDataSource(reportsNode.getNodeInfo());
        list.bindText(attReportName);
Armin
Fixed code tags

Dynamic creation of class and calling methods

I've got and interface called Transformation and then two implementations called TxA and TxB, where TxA and TxB have their own attribtues and setter and getters for these attributes.
The question is, I need to create instances of TxA and TxB and called the setter and getters where I at runtime I only know the attribute to set, how can I create and instance and call the right getters and setters methods?
Thanks in advance

Smart money says your design sucks and needs to be rethought entirely. Can we get specifics?
Drake

Dynamic Internal table values read and assign it back

Hi All,
        I want to get the internal table field name dynamically and fetch its value and do some calculation and asign the new value to the same field name.
       CONCATENATE '<WA_PIPE>-ZW' v_index INTO v_fld.
        CONDENSE v_fld NO-GAPS.
        FIELD-SYMBOLS <fs> TYPE ANY.
        ASSIGN (v_fld) TO <fs>.
        v_fld1 = <fs> * <wa_pipe>-zrate.
Now i've the internal table field name as <WA_PIPE>-ZW1 in v_fld and v_fld1 is having the value of the same field.
How to assign it to the internal table field.
Thanks.
Ashok

*& Report YY_TEST1
REPORT YY_TEST1.
type-pools: slis.
field-symbols: <dyn_table> type standard table,
<dyn_wa>.
data: it_alvfc type slis_t_fieldcat_alv,
wa_alvfc type slis_fieldcat_alv,
it_fldcat type lvc_t_fcat,
wa_fldcat type lvc_s_fcat.
selection-screen begin of block b1 with frame title text-001.
parameters: p_flds(5) type c.
selection-screen end of block b1.
start-of-selection.
*build the dynamic internal table
perform build_dyn_itab.
*write 5 records to the alv grid
do 5 times.
perform build_report.
enddo.
*call the alv grid.
perform call_alv.
*Build_dyn_itab
form build_dyn_itab.
*Create the dynamic internal table
data: new_table type ref to data,
new_line type ref to data.
*Create fields .
do p_flds times.
clear wa_fldcat.
wa_fldcat-fieldname = sy-index.
wa_fldcat-datatype = 'CHAR'.
wa_fldcat-intlen = 5.
append wa_fldcat to it_fldcat .
enddo.
*Create dynamic internal table and assign to FS
call method cl_alv_table_create=>create_dynamic_table
exporting
it_fieldcatalog = it_fldcat
importing
ep_table = new_table.
assign new_table->* to <dyn_table>.
*Create dynamic work area and assign to FS
create data new_line like line of <dyn_table>.
assign new_line->* to <dyn_wa>.
endform.
*Form build_report
form build_report.
*Fill some values into the dynamic internal table
data: fieldname(20) type c.
data: fieldvalue(5) type c.
data: index(3) type c.
field-symbols: <fs1>.
do p_flds times.
index = sy-index.
*Set up fieldvalue
concatenate 'FLD' index into
fieldvalue.
condense fieldvalue no-gaps.
assign component index of structure <dyn_wa> to <fs1>.
<fs1> = fieldvalue.
enddo.
*Append to the dynamic internal table
append <dyn_wa> to <dyn_table>.
endform.
*CALL_ALV
form call_alv.
*Build FC for ALV
loop at it_fldcat into wa_fldcat.
wa_alvfc-fieldname = wa_fldcat-fieldname.
wa_alvfc-seltext_s = sy-tabix.
wa_alvfc-outputlen = wa_fldcat-intlen.
append wa_alvfc to it_alvfc.
endloop.
*Call ABAP List Viewer (ALV)
call function 'REUSE_ALV_GRID_DISPLAY'
exporting
it_fieldcat = it_alvfc
tables
t_outtab = <dyn_table>.
endform.

Read a csv file, fill a dynamic table and insert into a standard table

Hi everybody,
I have a problem here and I need your help:
I have to read a csv file and insert the data of it into a standard table.
1 - On the parameter scrreen I have to indicate the standard table and the csv file.
2 - I need to create a dynamic table. The same type of the one I choose at parameter screen.
3 - Then I need to read the csv and put the data into this dynamic table.
4 - Later I need to insert the data from the dynamic table into the standard table (the one on the parameter screen).
How do I do this job? Do you have an example? Thanks.

Here is an example table which shows how to upload a csv file from the frontend to a dynamic internal table. You can of course modify this to update your database table.
report zrich_0002.
type-pools: slis.
field-symbols: <dyn_table> type standard table,
               <dyn_wa>,
               <dyn_field>.
data: it_fldcat type lvc_t_fcat,
      wa_it_fldcat type lvc_s_fcat.
type-pools : abap.
data: new_table type ref to data,
      new_line type ref to data.
data: xcel type table of alsmex_tabline with header line.
selection-screen begin of block b1 with frame title text .
parameters: p_file type rlgrap-filename default 'c:Test.csv'.
parameters: p_flds type i.
selection-screen end of block b1.
start-of-selection.
* Add X number of fields to the dynamic itab cataelog
do p_flds times.
    clear wa_it_fldcat.
    wa_it_fldcat-fieldname = sy-index.
    wa_it_fldcat-datatype = 'C'.
    wa_it_fldcat-inttype = 'C'.
    wa_it_fldcat-intlen = 10.
    append wa_it_fldcat to it_fldcat .
enddo.
* Create dynamic internal table and assign to FS
call method cl_alv_table_create=>create_dynamic_table
               exporting
                  it_fieldcatalog = it_fldcat
               importing
                  ep_table        = new_table.
assign new_table->* to <dyn_table>.
* Create dynamic work area and assign to FS
create data new_line like line of <dyn_table>.
assign new_line->* to <dyn_wa>.
* Upload the excel
call function 'ALSM_EXCEL_TO_INTERNAL_TABLE'
       exporting
            filename                = p_file
            i_begin_col             = '1'
            i_begin_row             = '1'
            i_end_col               = '200'
            i_end_row               = '5000'
       tables
            intern                  = xcel
       exceptions
            inconsistent_parameters = 1
            upload_ole              = 2
            others                  = 3.
* Reformt to dynamic internal table
loop at xcel.
    assign component xcel-col of structure <dyn_wa> to <dyn_field>.
    if sy-subrc = 0.
     <dyn_field> = xcel-value.
    endif.
    at end of row.
      append <dyn_wa> to <dyn_table>.
      clear <dyn_wa>.
    endat.
endloop.
* Write out data from table.
loop at <dyn_table> into <dyn_wa>.
    do.
      assign component sy-index of structure <dyn_wa> to <dyn_field>.
      if sy-subrc <> 0.
        exit.
      endif.
      if sy-index = 1.
        write:/ <dyn_field>.
      else.
        write: <dyn_field>.
      endif.
    enddo.
endloop.
REgards,
RIch Heilman

Link between technical table and datasource - SE16

Hi,
I'm looking for the table in SE16 that gives me the association between my technical tables and my datasources/infosources:
for example:
I have table /BIC/B0000161000 and I want to know for which datasource this is the PSA table...
Kind regards
Joke

already found the link: rstsods

Dynamically create Internal Table

Hi,
I have a parameter in the program table name.
I want to create an Internal Table like the table name entered for this parameter.
Is this kind of dynamic creation of internal table from a variable possible.
If yes, can you guys please help me with it.
Thanks,
CD

Sure, its possible. HEre is an example. And you will find thousands more, when you search this forum.
report zrich_0002.
type-pools: slis.
field-symbols: <dyn_table> type standard table,
               <dyn_wa>,
               <dyn_field>.
data: alv_fldcat type slis_t_fieldcat_alv,
      it_fldcat type lvc_t_fcat.
type-pools : abap.
data : it_details type abap_compdescr_tab,
       wa_details type abap_compdescr.
data : ref_descr type ref to cl_abap_structdescr.
data: new_table type ref to data,
      new_line type ref to data,
      wa_it_fldcat type lvc_s_fcat.
selection-screen begin of block b1 with frame title text .
parameters: p_table(30) type c.
selection-screen end of block b1.
* Get the structure of the table.
ref_descr ?= cl_abap_typedescr=>describe_by_name( p_table ).
it_details[] = ref_descr->components[].
loop at it_details into wa_details.
clear wa_it_fldcat.
wa_it_fldcat-fieldname = wa_details-name .
wa_it_fldcat-datatype = wa_details-type_kind.
wa_it_fldcat-inttype = wa_details-type_kind.
wa_it_fldcat-intlen = wa_details-length.
wa_it_fldcat-decimals = wa_details-decimals.
append wa_it_fldcat to it_fldcat .
endloop.
* Create dynamic internal table and assign to FS
call method cl_alv_table_create=>create_dynamic_table
             exporting
                it_fieldcatalog = it_fldcat
             importing
                ep_table        = new_table.
assign new_table->* to <dyn_table>.
* Create dynamic work area and assign to FS
create data new_line like line of <dyn_table>.
assign new_line->* to <dyn_wa>.
* Select Data from table.
select * into corresponding fields of table <dyn_table>
           from (p_table).
* Write out data from table.
loop at <dyn_table> into <dyn_wa>.
do.
    assign component sy-index of structure <dyn_wa> to <dyn_field>.
    if sy-subrc <> 0.
      exit.
    endif.
    if sy-index = 1.
      write:/ <dyn_field>.
    else.
      write: <dyn_field>.
    endif.
enddo.
endloop.
Regards,
Rich Heilman

Dynamic Creation of Table and assign Datasource.

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