1、放置控件
2、添加字段
3、右键单击控件，然后单击create data就创建好了
注意：
创建好后如果还要添加字段，添加完字段后需先右键单击控件执行clear data，然后再右键此控件重新点击create data
4、临时表的：增删改语法
添加数据到ClientDataset
Self.cdsExpenseList.Edit;
Self.cdsExpenseList.Append;
self.cdsExpenseList.FieldByName('id').Value :=
FieldByName('id').AsInteger;
Self.cdsExpenseList.FieldByName('CheckInNum').Value :=
FieldByName('CheckInNum').AsString;
Self.cdsExpenseList.FieldByName('MasterNum').Value :=
FieldByName('MasterNum').AsString;
Self.cdsExpenseList.FieldByName('RoomNum').Value :=
FieldByName('RoomNum').AsString;
Self.cdsExpenseList.FieldByName('RoomName').Value :=
FieldByName('RoomName').AsString;
Self.cdsExpenseList.FieldByName('RoomCategoryName').Value :=
FieldByName('CategoryName').AsString;
Self.cdsExpenseList.FieldByName('PreferentialName').Value :=
FieldByName('PreferentialName').AsString;
Self.cdsExpenseList.Post;
修改：
Self.cdsConsume.Edit;
self.cdsConsume.FieldByName('Amount').Value := TcxCurrencyEdit(Sender).Value;
Self.cdsConsume.FieldByName('Total').Value :=
self.cdsConsume.FieldByName('Price').AsFloat *
TcxCurrencyEdit(Sender).Value;
self.cdsConsume.Post;
删除：
self.cdsConsume.Edit;
self.cdsConsume.Delete;
