How to know a specific checkbox inside datagridview is checked or not?

Question

i had a gridview which has 2 columns , one is textbox column and other is checkbox column, how to know which checkbox is checked .

Answer 1

private void dataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
    if (e.ColumnIndex == *someIndex*)
    {
        DataGridViewCheckBoxCell cell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex] as DataGridViewCheckBoxCell;
        if (cell != null)
        {
            if (cell.EditingCellValueChanged)
            {
                //CheckBox has been clicked
            }

            //here how to get the checkBoxCell value
            var cellChecked = cell.EditingCellFormattedValue;
        }
    }
}