this.GV_ColumnInfo.AutoGenerateColumns = false;
this.GV_ColumnInfo.DataSource =你要绑定的dt;

                DataGridViewColumn fieldNameColumn = new DataGridViewTextBoxColumn();
                fieldNameColumn.HeaderText = "field_name";
                fieldNameColumn.DataPropertyName = "field-name";
                this.GV_ColumnInfo.Columns.Add(fieldNameColumn);

                DataGridViewColumn idColumn = new DataGridViewTextBoxColumn();
                idColumn.HeaderText = "id";
                idColumn.DataPropertyName = "id";
                this.GV_ColumnInfo.Columns.Add(idColumn);

                DataGridViewColumn identifierColumn = new DataGridViewTextBoxColumn();
                identifierColumn.HeaderText = "identifier";
                identifierColumn.DataPropertyName = "identifier";
                this.GV_ColumnInfo.Columns.Add(identifierColumn);

                //下拉列表绑定时候，DataPropertyName和ValueMember做对比，
                DataGridViewComboBoxColumn typeColumn = new DataGridViewComboBoxColumn();
                typeColumn.DataSource = GetComBoxDataSource();
                typeColumn.Width = 200;
                typeColumn.DataPropertyName = "type";
                typeColumn.DisplayMember = "Text";
                typeColumn.ValueMember = "Values";
                typeColumn.HeaderText = "type";
                //typeColumn = ComboBoxStyle.DropDownList;
                this.GV_ColumnInfo.Columns.Add(typeColumn);

                DataGridViewColumn lengthColumn = new DataGridViewTextBoxColumn();
                lengthColumn.HeaderText = "length";
                lengthColumn.DataPropertyName = "length";
                this.GV_ColumnInfo.Columns.Add(lengthColumn);