Tài liệu Retrieving Hierarchical Data into a DataSet ppt

... [ Team LiB ] Recipe 2.1 Retrieving Hierarchical Data into a DataSet Problem You want to fill a DataSet with parent and related child data, even if the DataSet already has a schema that ... parent table, Orders, is bound to a data grid on the form. Load DataSet Button.Click Starts by clearing the data from the DataSet and refreshing the data grid. Da...

Ngày tải lên: 24/12/2013, 05:15

... Cursors.Default; } private DataSet CreateDataSet( ) { DataSet ds = new DataSet( ); // Create the Orders table. DataTable dtOrders = new DataTable(ORDERS_TABLE); DataColumnCollection ... 100- nanosecond intervals. CreateDataSet( ) This method builds a DataSet containing the table schema for the Orders and Order Details tables from the Northwind database and creates...

Ngày tải lên: 14/12/2013, 18:16

... tables. UpdateOrders( ) Takes a DataSet argument containing the changes made to the DataSet created by the LoadOrders( ) method, creates two DataAdapter objects with CommandBuilder generated ... Use a DataSet object. The XML web service code contains two methods: LoadOrders( ) Creates and returns a DataSet containing the Orders and Order Details tables from Northwind an...

Ngày tải lên: 24/12/2013, 05:15

... Day Day Up > < Day Day Up > Retrieving the Data N ow that you've created a data- storage architecture, you need to develop a way to retrieve the information from storage—and ... storage—and that involves some new syntax that provides a means of writing a dot syntax path dynamically. Square brackets are used to evaluate an expression. Here's how it w...

Ngày tải lên: 21/01/2014, 13:20

... tables. UpdateOrders( ) Takes a DataSet argument containing the changes made to the DataSet created by the LoadOrders( ) method, creates two DataAdapter objects with CommandBuilder generated ... Use a DataSet object. The XML web service code contains two methods: LoadOrders( ) Creates and returns a DataSet containing the Orders and Order Details tables from Northwind an...

Ngày tải lên: 26/01/2014, 10:20

... considered an archival data resource that stores and distributes primary data, there are hundreds of derivative databases that catalog the data in different ways. For example, CATH (Orengo et al., ... 2003) and again to try to predict these. There are specialty databases such as the Nucleic Acid Database (Berman et al., 1992) and the HIV Protease Structural Database (Ravichandran et al.,...

Ngày tải lên: 16/02/2014, 11:20

... should reasonably have been completed and therefore, as from that particular date, the liquidated damages clause will come into operation and that future certificates will be endorsed ‘subject to whatever ... but the completion of all information to a stage sufficiently advanced to place the contract is customarily a major fee stage. It may also be a point at which the staged payments...

Ngày tải lên: 09/12/2013, 16:15

... Mission-critical data 4. Important data 5. Default data 6. Scavenger data (less than best effort) With the policy in place, congestion avoidance, policing, traffic shaping, and congestion management ... transporting private data. The tunnel must be secured by public and/or private keys and a combination of a data integrity hash and encryption. A typical data authentication...

Ngày tải lên: 10/12/2013, 17:15

... oseltamivir phosphate chuyển h a thành oseltavimir carboxylat, diệt virus gây bệnh cúm A, trong đó có virus A/ H5N1 và A/ H1N1, nhưng không hiệu quả lắm với cúm B. Hiệu quả điều trị cúm A c a thuốc ... điều trị cúm A không? Ngoài Tamiflu còn có Zanamivir, cơ chế tác dụng và hiệu quả giống Tamiflu. Còn Amantadine và Ribivirin thường bị đề kháng, đặc biệt đã bị virus A/ H5N1 và A...

Ngày tải lên: 14/12/2013, 08:15

... dv.RowStateFilter = DataViewRowState.Deleted; dataGrid.ReadOnly = true; // Get the DataTable from the DataView. DataTable dt = dv.Table; // Filter using the DataTable RowState. DataRow[] ... dv.RowStateFilter = DataViewRowState.Deleted; dataGrid.ReadOnly = true; // Get the DataTable from the DataView. DataTable dt = dv.Table; // Filter using the DataTable RowState. Dat...

Ngày tải lên: 14/12/2013, 18:16