c# - comboboxitem to be replaced by textbox on clicking -


i implementing combobox consisting of normal comboboxitems , allow modification of list bound combobox.

eg: need following go combobox - option1, option2, option3, addnewoption where, upon clicking on addnewoption, want comboboxitem expose textbox enter content, dynamically added list bound combobox.

how implement highlighted portion?

i bind editable collection view adds newitemplaceholder @ end, 1 define datatemplate place-holder contains outlined logic.


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