DataGridViewComboBoxColumn的使用

            DataGridViewComboBoxColumn ComboBoxColumn = new DataGridViewComboBoxColumn();

            ComboBoxColumn.DataSource =  Datatable对象（combobox要绑定的数据，包含两个列一个DisplayMember ，

                                          一个ValueMember  ）

            ComboBoxColumn.DisplayMember = "Display";
            ComboBoxColumn.ValueMember = "Value";

            ComboBoxColumn.DataPropertyName = "Feild";//datagridview1的DataSource，数据库中的列
            ComboBoxColumn.HeaderText = "单据种类";
            ComboBoxColumn.DisplayStyle = DataGridViewComboBoxDisplayStyle.Nothing;
            ComboBoxColumn.FlatStyle = FlatStyle.System;

            this.datagridview1.Columns.Add(ComboBoxColumn);