column as the column where the interactive search code should search in for the current model.
If the search column is set, users 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.
column refers to a column of the current model. The search column is reset to -1 when the model is changed.
the column of the model to search in, or -1 to disable searching