I have a little issue with selecting all rows in datagridview.
Ok, I have a datagridview with 20 visible columns, and 10 invisible (for program purposes I made those invisible)
and I have a button with
and that works fine when datagridview is populated with 50 rows, but as the number of populated rows gets up, so the the time to select all those rows on button click gets also higher. until around 3500 rows when it simplY crashes down.
now I have tried with selectionmode to change to CellSelect and that works fine but the thing is when you change to CellSelect then rows arent selected which I need in further work of my application. so I figured there is some problem with those inivisible columns
Solutions, most welcome :)