datagridview column type

I am populating a datagridview control in windows form using c#.
The datagridview is poulated and the first column is Currency.

Question:
Now I would like this column to be set to have autofilter functionality.
How do I do this in c#? Note that at present my datagridview is populated with data.

Is something like the following allowed?
dgv.Columns["Currency"].ColumnType = DataGridViewAutoFilterTextBoxColumn;

Thanks