How to get the rows in a Datagrid that are customized in c#?

Question

I have a Datagrid with n rows. And some of the rows of the datagrid have the backcolor as green. I also have a button. How can I disable the button when no rows of my Datgrid are in green.

Answer 1

Get the count of green colored cells

int greenColuredCells = (dgv.Rows.Cast<DataGridViewRow>()
                    .Where(r => r.Cells[0].Style.BackColor == Color.Green)
                    .Count();

and use this to hide show butten

btn.enable = greenColuredCells>0;