private void dgvInfoPerson_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)

        {

            if (dgvInfoPerson.CurrentCellAddress.X == dgvInfoPerson.Columns["colCboDeptNo"].Index)

            {

                cbo = e.Control as ComboBox;

                if (cbo != null)

                {

                    cbo.DropDownStyle = ComboBoxStyle.DropDown;

                    cbo.AutoCompleteMode = AutoCompleteMode.SuggestAppend;

                }

            }

        }


        private void dgvInfoPerson_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)

        {

            if (dgvInfoPerson.CurrentCellAddress.X == dgvInfoPerson.Columns["colCboDeptNo"].Index)

            {

                //问题出在这里.如果你输入的是ValueMember的值的话就没问题.但你如果输入的是DisplayMember的值的话就不会选中.

                //如ValueMember="MAN" DisplayMember="管理部",如果你在此单元格输入MAN就没问题,但输入管理部就不会选中.但用户就应该是输入管理部

                  //而不是输入MAN.

                dgvInfoPerson.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = e.FormattedValue;

            }

        }

已经搜过很多地方了.都没好的解决方案.还请各位有经验的前辈指点迷津.谢谢!