Sunday, November 8, 2009

Getting the Value from a SelectOneChoice List (Not Index)

One of the Issue I found when I use af:selectOneChoice component that when I want to get the selected value from one of the selectOneChoice attribute from backingbean I found the return value is the index of selected value not the value. (Using HR Schema)
assume we have an EmployeesView which has a DepartmentId (as a lookup to DepartmentView) and want to get the the value of selected Department. To solve this problem do this :

BindingContainer bindings =BindingContext.getCurrent().getCurrentBindingsEntry();
JUCtrlListBinding listBinding =(JUCtrlListBinding)bindings.get("DepartmentId");
Row selectedValue = (Row) listBinding.getSelectedValue();
System.out.println(selectedValue.getAttribute("DepartmentId"));

Where:

- DepartmentId the selectOneChoice Attribute
which you want to get its value.
- selectedValue is the row of the lookup attribute (In this case will be the row of the selected department).
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12 comments:

  1. UnknownNovember 9, 2009 at 9:53 PM

    HI...Samesh thanks for this useful information.
    but i want to know..u provide Id where from this comes?
    System.out.println(selectedValue.getAttribute("Id"));

    ReplyDelete
  2. Sameh NassarNovember 10, 2009 at 12:31 AM

    Hi Charu,

    selectedValue is a row of department you can get from it what you want as Id , DepartmentName , ..

    System.out.println(selectedValue.getAttribute("Id"));
    System.out.println(selectedValue.getAttribute("DepartmentName"));

    ReplyDelete
  3. Krzysztof PolakNovember 15, 2009 at 2:14 PM

    Hi,
    If I use your solution inside valueChangeListener I obtain OLD value of my selectOneChoice, which is not I expect :(

    ReplyDelete
  4. Sameh NassarNovember 17, 2009 at 1:26 AM

    Hi penser,
    If you want to use valueChangeListener you should add this line before you get the selectedValue :
    listBinding.setSelectedIndex(Integer.parseInt(valueChangeEvent.getNewValue().toString()));

    Your code will be :
    BindingContainer bindings =BindingContext.getCurrent().getCurrentBindingsEntry();
    JUCtrlListBinding listBinding =(JUCtrlListBinding)bindings.get("DepartmentId");
    listBinding.setSelectedIndex(Integer.parseInt(valueChangeEvent.getNewValue().toString()));
    Row selectedValue = (Row) listBinding.getSelectedValue();
    System.out.println("Id== "+selectedValue.getAttribute("DepartmentId"));
    System.out.println("Name== "+selectedValue.getAttribute("DepartmentName"));

    ReplyDelete
  5. logDecember 9, 2009 at 2:35 PM

    Hi Samesh,

    I am using ur code and try to get the selected value. But it always returns the very first value of my selectOneChoice list, cant able to get the selected value.

    When I print the listBinding value it also always print 0!!!!!. Can you please let me know what is that deptmentID which ur using. I am using the Decode which i drag and drop from my Application ModuleDC

    ReplyDelete
  6. logDecember 9, 2009 at 3:00 PM

    I believe binding.get("Decode"); is wrong in my case. Since I drag and drop the Decode from my Application Module DC using that one to get. B ut seems that is not in the list. How can I see all the list in the binding.

    Or how can get the correct attribute name of my selectOneChoice from my page?

    ReplyDelete
  7. AnonymousMarch 16, 2010 at 4:37 PM

    The solution you provided for valueChangeListener works! Thanks!

    ReplyDelete
  8. AnonymousMarch 23, 2011 at 6:06 AM

    شكرا على المعلومات القيمة

    ReplyDelete
  9. AnonymousSeptember 7, 2011 at 3:47 AM

    Thx!

    ReplyDelete
  10. AnonymousJune 28, 2012 at 7:15 AM

    WOW! your solution works perfect! Thanks so much for help us

    ReplyDelete
  11. AnonymousOctober 12, 2014 at 3:43 AM

    Your solution is working thanks...

    ReplyDelete
  12. Ahmed AlhadedyFebruary 4, 2018 at 1:34 PM

    Very informative!..Thank you.

    ReplyDelete

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