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Problem with two tab canvases in a form [message #587749]

Tue, 18 June 2013 06:42

pramod.sramesh
Messages: 23
Registered: November 2011
Location: Bangalore

Junior Member

Hi Experts,

I am working on Oracle forms 10g (OS: Windows7) from last 1 year. I have got a requirement to create a form with one tab canvas CAN_TAB (with 2 tab pages) in main page and a pop up tab canvas ASN_SPLIT_TAB(with 2 tab pages). Now the problem is whenever we click on tabs it will fire WHEN-TAB-PAGE-CHANGED trigger and executes the complete code. As a result even if i click a tab page in CAN_TAB canvas it will fire for ASN_SPLIT_CANVAS as well. Check the below code (WHEN-TAB-PAGE-CHANGED). Now i have to differentiate between two tab canvases so that i can use IF-ELSE statement to overcome this problem. Please share your useful comments.

BEGIN
Lv_Toppage := Upper(Get_canvas_property('CAN_TAB',Topmost_Tab_page));
  if Lv_Toppage = 'LINES' THEN  	
  	go_item('shipment_summary.shipment_reference');
	show_view('CAN_LINES');
	show_view('CAN_SCROLL');
  elsif Lv_Toppage = 'ATTRIBUTES' THEN
  	go_item('shipment_summary.shipment_reference');
  	show_view('CAN_ATT' );	
  	elsif Lv_Toppage = 'AUDIT' THEN
  	go_item('shipment_summary.confirmedby');
	show_view('AUDIT'); 
  end if;

Lv_Toppage := Upper(Get_canvas_property('ASN_SPLIT_TAB',Topmost_Tab_page));
  IF Lv_Toppage = 'INVOICE_SPLIT' THEN
	show_view('ASN_SPLIT_STACK');
	go_item('ASN_INBOUND_CATEGORY_SUMMARY.brand_representitive');
  ELSIF Lv_Toppage = 'SUPPLIER' THEN
	 go_item('CONTROL.cancel_but');
  END IF;
  hide_view('ASN_SPLIT_STACK');
END;

[EDITED by LF: applied [code] tags]

[Updated on: Wed, 19 June 2013 01:05] by Moderator

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Re: Problem with two tab canvases in a form [message #587851 is a reply to message #587749]

Wed, 19 June 2013 01:07

Littlefoot
Messages: 21823
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

Open Forms Online Help system and search for WHEN-TAB-PAGE-CHANGED trigger. It contains an example (excerpt follows) which might help. It is not the "topmost_tab_page" you need, but its label:

  tp_nm VARCHAR2(30);
  tp_id TAB_PAGE;
  tp_lb VARCHAR2(30);
BEGIN
  tp_nm := GET_CANVAS_PROPERTY('emp_cvs', topmost_tab_page);
  tp_id := FIND_TAB_PAGE(tp_nm);
  tp_lb := GET_TAB_PAGE_PROPERTY(tp_id, label);
  
  IF tp_lb LIKE 'Sa%' THEN
...

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