insert
Description:
Inserts text at position in the list of strings stored in this.
Note:
Use [class@Gtk.DropDown]
If id is non-null then it is used as the ID of the row. See [property@Gtk.ComboBox:id-column].
If position is negative then text is appended.
Parameters:
| this |
A `GtkComboBoxText` |
| position |
An index to insert |
| id |
a string ID for this value |
| text |
A string to display |