void PrepareComboBoxes() { PositionPrimary.DataSource = Enums.Positions; PositionSecondary.DataSource = Enums.PositionsIncludingNone; GradePrimary.DataSource = Enums.Grades; GradeSecondary.DataSource = Enums.GradesIncludingNone; preferredTeamSizesDataGridViewTextBoxColumn.DataSource = Enums.TeamSizes; EnumStringConverter.AddAttributesToEnumsAndStructs(); }