Export datas to Excel (Using Web Utilities)

Question

Hi,
This is the procedure to export the datas from Data Block to the excel sheet. It woks fine in the client-server arch (by replaceing CLIENT_OLE2 with OLE2). But i need to execute in Appication Server Arch. so I prefixed "CLIENT_" , but it is not working. Is there any suggestion to implement it.
PROCEDURE pr_Forms_to_Excel(p_block_name IN VARCHAR2 DEFAULT NAME_IN('system.current_block')) IS
-- Declare the OLE objects
application CLIENT_OLE2.OBJ_TYPE;
workbooks CLIENT_OLE2.OBJ_TYPE;
workbook CLIENT_OLE2.OBJ_TYPE;
worksheets CLIENT_OLE2.OBJ_TYPE;
worksheet CLIENT_OLE2.OBJ_TYPE;
cell CLIENT_OLE2.OBJ_TYPE;
range CLIENT_OLE2.OBJ_TYPE;
range_col CLIENT_OLE2.OBJ_TYPE;
-- Declare handles to OLE argument lists
args CLIENT_OLE2.LIST_TYPE;
-- Declare form and block items
form_name VARCHAR2(100);
f_block VARCHAR2(100);
l_block VARCHAR2(100);
f_item VARCHAR2(100);
l_item VARCHAR2(100);
cur_block VARCHAR2(100) := NAME_IN('system.current_block');
cur_item VARCHAR2(100) := NAME_IN('system.current_item');
cur_record VARCHAR2(100) := NAME_IN('system.cursor_record');
item_name VARCHAR2(100);
baslik VARCHAR2(100);
row_n NUMBER;
col_n NUMBER;
filename VARCHAR2(100);
ExcelFontId CLIENT_OLE2.list_type;
BEGIN
-- Start Excel
application:=CLIENT_OLE2.CREATE_OBJ('Excel.Application');
CLIENT_OLE2.SET_PROPERTY(application, 'Visible', 'True');
-- Return object handle to the Workbooks collection
workbooks:=CLIENT_OLE2.GET_OBJ_PROPERTY(application, 'Workbooks');
-- Add a new Workbook object to the Workbooks collection
workbook:=CLIENT_OLE2.GET_OBJ_PROPERTY(workbooks,'Add');
-- Return object handle to the Worksheets collection for the Workbook
worksheets:=CLIENT_OLE2.GET_OBJ_PROPERTY(workbook, 'Worksheets');
-- Get the first Worksheet in the Worksheets collection
-- worksheet:=CLIENT_OLE2.GET_OBJ_PROPERTY(worksheets,'Add');
args:=CLIENT_OLE2.CREATE_ARGLIST;
CLIENT_OLE2.ADD_ARG(args, 1);
worksheet:=CLIENT_OLE2.GET_OBJ_PROPERTY(worksheets,'Item',args);
CLIENT_OLE2.DESTROY_ARGLIST(args);
-- Return object handle to cell A1 on the new Worksheet
go_block(p_block_name);
baslik := get_block_property(p_block_name,FIRST_ITEM);
f_item := p_block_name||'.'||get_block_property(p_block_name,FIRST_ITEM);
l_item := p_block_name||'.'||get_block_property(p_block_name,LAST_ITEM);
first_record;
LOOP
item_name := f_item;
row_n := NAME_IN('SYSTEM.CURSOR_RECORD');
col_n := 1;
LOOP
IF get_item_property(item_name,ITEM_TYPE)<>'BUTTON' AND
get_item_property(item_name,VISIBLE)='TRUE'
THEN
-- Set first row with the item names
IF row_n=1 THEN
     args := CLIENT_OLE2.create_arglist;
     CLIENT_OLE2.add_arg(args, 1);
     CLIENT_OLE2.add_arg(args, col_n);
     cell := CLIENT_OLE2.get_obj_property(worksheet, 'Cells', args);
     CLIENT_OLE2.destroy_arglist(args);
     --cell_value := CLIENT_OLE2.get_char_property(cell, 'Value');
     ExcelFontId := CLIENT_OLE2.get_obj_property(Cell, 'Font');
     CLIENT_OLE2.set_property(ExcelFontId, 'Bold', 'True');
baslik:=NVL(get_item_property(item_name,PROMPT_TEXT),baslik);
args:=CLIENT_OLE2.CREATE_ARGLIST;
CLIENT_OLE2.ADD_ARG(args, row_n);
CLIENT_OLE2.ADD_ARG(args, col_n);
cell:=CLIENT_OLE2.GET_OBJ_PROPERTY(worksheet, 'Cells', args);
CLIENT_OLE2.DESTROY_ARGLIST(args);
CLIENT_OLE2.SET_PROPERTY(cell, 'Value', baslik);
CLIENT_OLE2.RELEASE_OBJ(cell);
END IF;
-- Set other rows with the item values
args:=CLIENT_OLE2.CREATE_ARGLIST;
CLIENT_OLE2.ADD_ARG(args, row_n+1);
CLIENT_OLE2.ADD_ARG(args, col_n);
cell:=CLIENT_OLE2.GET_OBJ_PROPERTY(worksheet, 'Cells', args);
CLIENT_OLE2.DESTROY_ARGLIST(args);
IF get_item_property(item_name,DATATYPE)<>'NUMBER' THEN
CLIENT_OLE2.SET_PROPERTY(cell, 'NumberFormat', '@');
END IF;
CLIENT_OLE2.SET_PROPERTY(cell, 'Value', name_in(item_name));
CLIENT_OLE2.RELEASE_OBJ(cell);
END IF;
IF item_name = l_item THEN
exit;
END IF;
baslik := get_item_property(item_name,NEXTITEM);
item_name := p_block_name||'.'||get_item_property(item_name,NEXTITEM);
col_n := col_n + 1;
END LOOP;
EXIT WHEN NAME_IN('system.last_record') = 'TRUE';
NEXT_RECORD;
END LOOP;
-- Autofit columns
range := CLIENT_OLE2.GET_OBJ_PROPERTY( worksheet,'UsedRange');
range_col := CLIENT_OLE2.GET_OBJ_PROPERTY( range,'Columns');
CLIENT_OLE2.INVOKE( range_col,'AutoFit' );
CLIENT_OLE2.RELEASE_OBJ( range );
CLIENT_OLE2.RELEASE_OBJ( range_col );
-- Get filename and path
args := CLIENT_OLE2.CREATE_ARGLIST;
CLIENT_OLE2.ADD_ARG( args, p_block_name );
CLIENT_OLE2.ADD_ARG( args,'Excel Workbooks (*.xls, *.xls');
filename := CLIENT_OLE2.INVOKE_CHAR( application,'GetSaveAsFilename',args );
CLIENT_OLE2.DESTROY_ARGLIST( args );
-- Save as worksheet
IF NVL(filename,'0')<>'0' THEN
args := CLIENT_OLE2.CREATE_ARGLIST;
CLIENT_OLE2.ADD_ARG( args,filename );
CLIENT_OLE2.INVOKE( worksheet,'SaveAs',args );
CLIENT_OLE2.DESTROY_ARGLIST( args );
END IF;
-- Close workbook
--CLIENT_OLE2.INVOKE( workbook ,'Close');
-- Release the OLE objects
CLIENT_OLE2.RELEASE_OBJ(worksheet);
CLIENT_OLE2.RELEASE_OBJ(worksheets);
CLIENT_OLE2.RELEASE_OBJ(workbook);
CLIENT_OLE2.RELEASE_OBJ(workbooks);
--CLIENT_OLE2.INVOKE(application, 'Quit');
CLIENT_OLE2.RELEASE_OBJ(application);
-- Focus to the original location
go_block(cur_block);
go_record(cur_record);
go_item(cur_block||'.'||cur_item);
END;
Thanks in advance.
Rizly

Answer 1

Hi Simon,
It is not giving any error message, but not generaitng the output also. But if i removed all the prefixed CLIENT_ , then I will get the out put in the Application Server machience (Export the datas from the argument DataBlock to the Excel sheet) , but I need the same in the Client Machience, thats why I prefixed the CLIENT_, but i thing even though it wont for every methods, because i read like that in the Webutil Demo Documentation.
Thank U, Thank U Very much
Rizly