Sets search_column as the column where the interactive search code should search in.
If the search column is set, user can use the "start-interactive-search" key binding to bring up search popup. The "enable-search" property controls whether simply typing text will also start an interactive search.
Note that search_column refers to a column of the model.
| this |
an IconView. |
| search_column |
the column of the model to search in, or -1 to disable searching. |