set_value
Description:
Sets the data in the cell specified by iter and column.
Note:
Use [class@Gtk.TreeListModel] instead
The type of value must be convertible to the type of the column.
Parameters:
| this |
a `GtkTreeStore` |
| iter |
A valid `GtkTreeIter` for the row being modified |
| column |
column number to modify |
| value |
new value for the cell |