Problem in table cell editor

Hai,
I inserted as a dropdownkey in table, Parent node ABc is bind to table , the child node DEf bind to coloumn dropdownbyindex. i set child node singleton as false, but its giving null pointer exception.
IXXXView.IABCNode iu=wdContext.nodeABC();
IXXXView.IDEFElement c=iu.nodeDEF().createDEFElement();
How to Solve this.
Hope Anil and Piyush will help me they already know about this problem.
regards,

Hai Bharadwaj,
happy to see you again, I think I am in wrong with creating table cell editor.
i will say my requirement please help me to do:
in the table the first coloumn is number, second one is name, third one is *** ,this coloumn contains two standard Strings male and female, the can select from dropdown index.
what i did is I created context node parent ABC
in that attributes name , age and another node DEF having attribute S.
I created a table and bind the node ABC(its not allow me to check DEF node).
i deleted table cell editor of column *** and created new editor dropdownindex. and binded texts is node DEF
DEF is set to singleton false.
Give me the suggetion.
regrds,

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AS_DATA(Parent Node cardinality 1.1, selection 0-1)
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(i am adding a blank line to the table that is bound to table )
Its working fine. but when ever i add more than one row, the selection made in the previous rows drop down is lost.
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My code
data LO_ND_INV_TYPE type ref to IF_WD_CONTEXT_NODE.
data LO_EL_INV_TYPE type ref to IF_WD_CONTEXT_ELEMENT.
data LS_INV_TYPE type WD_THIS->ELEMENT_INV_TYPE.
data LV_INV_TYPE type WD_THIS->ELEMENT_INV_TYPE-INV_TYPE.
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data LS_DETAILS like line of LT_DETAILS.
data: WD_NODE type ref to IF_WD_CONTEXT_NODE,
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data LO_ND_INV_PATTERN type ref to IF_WD_CONTEXT_NODE.
data LO_EL_INV_PATTERN type ref to IF_WD_CONTEXT_ELEMENT.
data LS_INV_PATTERN type WD_THIS->ELEMENT_INV_PATTERN.
data LV_INV_PAT type WD_THIS->ELEMENT_INV_PATTERN-INV_TYPE.
data LO_ND_ACTIVITY_TYPES type ref to IF_WD_CONTEXT_NODE.
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any clue on what am i missing will be appreciated.
I am getting dump when i try to get the lead selection
Ajay

You only have only one option in the DDI to display in the example. when you have multiple values
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*LO_ND_DETAILS->GET_STATIC_ATTRIBUTES_TABLE(*
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Hello Experts,
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The code snippet below:
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Hi Prakash,
I have not come across this requirement till now to have context menu in a cell editor of alv.
Unfortunately the implementation of method SET_MENU of alv ui elements ( ex: cl_salv_wd_uie_text_view ) is not updating alv configurable table, instead it just stores in a global attribute as string. Hence has no effect on context menu.
If your user is very particular about this requirement of having context menu in cell editor, you can go for a normal table. Because, normal table's cell editor has the property to set the menuID as we do it for other ui elements.
Regards,
Rama

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}My TreeComboBoxTableCellEditor:
public class TreeComboBoxTableCellEditor extends AbstractCellEditor implements TableCellEditor, ActionListener {
    protected TreeComboBox treeComboBox;
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}Any thoughts?
Edited by: MiseryMachine on Apr 3, 2008 1:21 PM
Edited by: MiseryMachine on Apr 3, 2008 1:27 PM

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Hi Vinodh,
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