if (this.gridView_TestCaseScripts.Columns[STR_TESTSCRIPTTABLE_COMMAND].ColumnEdit is RepositoryItemComboBox)
                {
                    ((RepositoryItemComboBox)gridView_TestCaseScripts.Columns[STR_TESTSCRIPTTABLE_COMMAND].ColumnEdit).Items.Clear();
                    ((RepositoryItemComboBox)gridView_TestCaseScripts.Columns[STR_TESTSCRIPTTABLE_COMMAND].ColumnEdit).BeginUpdate();
                    foreach (string strCommand in _parseheader.Power_Command)
                    {
                        ((RepositoryItemComboBox)gridView_TestCaseScripts.Columns[STR_TESTSCRIPTTABLE_COMMAND].ColumnEdit).Items.Add(strCommand);
                    }
                    ((RepositoryItemComboBox)gridView_TestCaseScripts.Columns[STR_TESTSCRIPTTABLE_COMMAND].ColumnEdit).Sorted = true;
                    ((RepositoryItemComboBox)gridView_TestCaseScripts.Columns[STR_TESTSCRIPTTABLE_COMMAND].ColumnEdit).EndUpdate();
                }

------解决方案--------------------
GridControl

------解决方案--------------------
this.gridColumn1.ColumnEdit = this.repositoryItemComboBox2;