//打開數據庫的一般方法 OleDbConnection cnn =?new?OleDbConnection(sCnn); cnn.Open(); DataTable table =?new?DataTable(); try { ????OleDbCommand cmd =?new?OleDbCommand(sCommand, cnn); ????cmd.CommandType = cmdType; ????//構建DataAdapter ????OleDbDataAdapter adapter =?new?OleDbDataAdapter(cmd); ????//填充數據 ????table =?new?DataTable(sDataTableName); ????adapter.Fill(table); ????cnn.Close(); ????table.PrimaryKey =?new?DataColumn[1] { table.Columns[0] }; ????OleDbCommandBuilder builder =?new?OleDbCommandBuilder(adapter); ????builder.QuotePrefix =?"["; ????builder.QuoteSuffix =?"]"; ????adapter.InsertCommand = builder.GetInsertCommand(); ????adapter.DeleteCommand = builder.GetDeleteCommand(); ????adapter.UpdateCommand = builder.GetUpdateCommand(); ????adapter.RowUpdated +=?new?OleDbRowUpdatedEventHandler(OnRowUpdated); } catch { } ?? ?? //======================== //OleDbRowUpdatedEventHandler實例 protected?void?OnRowUpdated(object?sender, OleDbRowUpdatedEventArgs e) { ????if?((e.Status == UpdateStatus.Continue) && e.StatementType == StatementType.Insert) ????{ ????????int?newID = 0; ????????OleDbCommand cmdGetId =?new?OleDbCommand("SELECT @@IDENTITY", e.Command.Connection); ????????newID = (int)cmdGetId.ExecuteScalar(); ????????e.Row["id"] = newID; ????????if?(newID == 0) ????????{ ????????????MessageBox.Show("獲取ID值錯誤！"); ????????} ????} } ?? //======================== //修改row的數據 ????System.Data.DataTable tblChange = table.GetChanges(); ????affectRowCount = adapter.Update(tblChange); ????if?(mode == modeNew) ????{ ????????row["id"] = tblChange.Rows[0]["id"]; ????} ????table.AcceptChanges();

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