How to delete dynamically created attribute

Hi,
I am creating table dynamically according to no of columns. first time its displaying correctly, second time once i changed the no of columns its throwing error message like:
com.sap.tc.webdynpro.progmodel.context.ContextException: DataNodeInfo(DynamicView.TableNode): duplicate name for attribute name0.
Everytime before creating table i tried following commands.
table.removeAllColumns();
but still i am getting error.
Help me out in this....
Regards
Suresh KB

hi suresh
table.removeAllColumns();
will remove all the columns from the view.
but when u create the context attributes they are already existing. So it is giving the duplicate context exception.
To solve this problem, first delete all the attributes created dynamically. using below code.
wdcontext.node<urnode>().reset(<b>False</b>).
it will delete all the attrbutes created at runtime.
to delete attrbutes created at designtime use.
wdcontext.node<urnode>().reset(<b>True</b>).
Regards
Brahmanandam.A
collections created at design time will be preserved. All dynamically
added nodes and attributes are destroyed from the metadata.<p>
Calling reset(true) is functionally equivalent to calling reset().<p>

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