Old selection of DroDownByKey
I have DropDownByKey as cell editor iin one of the table column. On the change of SelectedKey i have to do some processing.
I am using parameter context_element to get element for the change value.
Probelm: Context_element always give the attribute with the latest selectedKey while i need what was the previous selectedkey and also what is the new selectedkey. Depeneding on the difference of Previous and New selected key i have to do some processing.
So, is there any straight forward way to get the previously selectedkey.