Tài liệu Finding, Filtering, and Sorting Rows in a DataTable ppt

... orderDetailsDataTable .Rows. Find(orderDetails); Filtering and Sorting DataRow Objects in a DataTable To filter and sort the DataRow objects in a DataTable, you use the Select() method of your DataTable. ... DESC", DataViewRowState.OriginalRows); foreach (DataRow myDataRow in productDataRows) { foreach (DataColumn myDataColumn in productsDataTable.Columns...

Ngày tải lên: 14/12/2013, 13:15

... field in descending order; this places [ Team LiB ] Recipe 3.10 Selecting the Top n Rows in a DataTable Problem You want to create a grid that shows the t op five rows in a DataTable, based ... values in one of the columns. Solution Use an appropriate sort order with a DataView filter. The sample code contains two event handlers: Form.Load Sets up the sampl...

Ngày tải lên: 14/12/2013, 18:16

... return an array of DataRow objects matching the specified filter criteria. By default, the rows in the array are ordered by the primary key or, lacking a primary key, by the order in which the rows ... ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable dt = new DataTable( ORDERS_TABLE); da.Fill(dt); da.FillSchema(dt, SchemaType.Source); // Bi...

Ngày tải lên: 26/01/2014, 10:20

... the DataTable, use an overload of the Select( ) method of the DataTable to return an array of deleted DataRow objects. The overload accepts an argument having a DataViewRowState enumeration value. ... Deleted rows from the DataTable, use an overload of the Select( ) method of the DataTable to return an array of deleted DataRow objects. The overload accepts an argument having a...

Ngày tải lên: 14/12/2013, 18:16

... called An example makefile in Appendix A for a way to track dependencies automatically. • Basic semantic bugs, such as using uninitialised variables, dead code 3 and certain type problems. A compiler ... the section called Using the compiler’s features. Explicit storage allocation and deallocation In C and C ++ , you have to explicitly allocate and deallocate dynamic storage...

Ngày tải lên: 21/01/2014, 06:20

... firewalls. When you start talking about implementing and needing to manage, maintain, configure and report on thousands of firewalls in an environment, however, the issues around centralized management ... should be allowed). Finally, you need to consider what will be necessary to provide for centralized management and reporting on your personal/desktop firewalls. It is one thing...

Ngày tải lên: 21/01/2014, 02:20

... 80. ' Have the command builder create an Insert SQL command 81. modaCustIndiv.InsertCommand = ocbCustIndiv.GetInsertCommand 82. Else 83. ' Have the command builder create an update ... refreshed, and the first customer in the list is displayed in the text boxes. Comments As you can see, adding and deleting a record does not take much more than editing and updating...

Ngày tải lên: 21/01/2014, 12:20

... re- sources in accordance with China’s comparative advantages. These changes would be in addition to the resource reallocation trends that are already taking place as part of the transition from a planned economy ... Ownership diversification has taken two main forms: listing on domestic and in- ternational stock exchanges in the case of larger SOEs, and sales to insiders, namel...

Ngày tải lên: 09/12/2013, 17:22

... components. Naphta Steam Boiler Feed Water Burner Temperature Sensor Fuel Heat Exchanger Cracking Gas Figure 10: Layout of a steam cracker. Control variables are heating as well as naphtha and steam flow The ... real variables into linguistic variables. Once all input variable values are translated into respective linguistic variable values, the so-called "fuzzy inference" step...

Ngày tải lên: 13/12/2013, 01:15

... components: a forward filter based on the basic Kalman filter, and a combined backward filter and smoother. Applications of Kalman filter theory may be extended to nonlinear dynamical systems, as summarized ... x k Þ denotes a nonlinear measurement matrix that may be time-variant, too. The basic idea of the extended Kalman filter is to linearize the state- space model of Eqs. (1.52) and...

Ngày tải lên: 13/12/2013, 13:15