Sets the entry which the interactive search code will use for this
tree_view. This is useful when you want to provide a search entry
in our interface at all time at a fixed position. Passing null for
entry will make the interactive search code use the built-in popup
entry again.
Sets the entry which the interactive search code will use for this tree_view. This is useful when you want to provide a search entry in our interface at all time at a fixed position. Passing null for entry will make the interactive search code use the built-in popup entry again.