I\'ve got confusion of setting / getting selected indexes of combobox fields inside.
this.Parameter.DataSource = lambdacat.Dict();
{
foreach
You can use
(row.Cells[1] as DataGridViewComboBoxCell).Value == yourvalue;
and get the selected value as
(row.Cells[1] as DataGridViewComboBoxCell).FormattedValue
To set a default selected value
(row.Cells[1] as DataGridViewComboBoxCell).Value =(row.Cells[1] as DataGridViewComboBoxCell).Items[yourneededindex]