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Карта сайта Интеллектуальная поисковая системаДобавить свою ссылку по ключевому запросуПоисковая система v3.kz поможет ускорить индексацию вашего сайта выводит в Топ |
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public DataTable Copy(). Return Value. Type: System.Data.DataTable. A new DataTable with the same structure (table schemas and constraints) and data as this DataTable. If these classes have been derived, the copy will also be of the same derived classes. public DataTable Copy(). Возвращаемое значение. Type: System.Data.DataTable. Новый класс DataTable, имеющий ту же структуру (схемы таблиц и ограничения) и данные, что и класс DataTable. How can I copy specific rows from DataTable to another Datable in c#? There will be more than one row. Generally speaking, the Data Table Copy operation does its best to copy as much data as possible from the source table to the target table, but always ensures that the target table keeps its original format. Usage copy(x) Arguments x Details data.table provides functions that operate on objects by reference and minimise full object copies as much as possible. If the table in Access doesnt need to be created (ie. copy datatable schema and data into Access), then much better. Is this possible? This article demonstrates how to copy specific DataRow objects from one table to another by using the ImportRow method of the DataTable class. Description. In data.table parlance, all set* functions change their input by reference. That is, no copy is made at all, other than temporary Avoid key<-, names<- and attr<- which in R currently (and oddly) may copy the whole data.table. Use set* syntax instead to avoid copying: ?set, ?setnames and ?setattr. Clone copies just the structure of the table, if you dont want the data. If the datatable you are copying the data to already contains some data you will probably want to put them into datasets and use the Merge method instead. Информация взята v3.kz |
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