propagating dataset changes to a data source

... The DataSet tracks changes made to data by maintaining multiple versions of each row allowing the data to be reconciled later to a data source using a DataAdapter The data source to which the DataSet ... destination DataAdapter is called using the DataSet containing the changes as the data object argument; this applies the changes to the destination data source The destination DataSet is then cleared ... to it since it was last retrieved from the data source or since AcceptChanges( ) was last called To replicate the changes made to the first data source into the second data source, the GetChanges(...

Ngày tải lên: 21/01/2014, 11:20

... System.EventArgs e) { ds = new DataSet( ); // Create the DataAdapter SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM " + TABLENAME, ConfigurationSettings.AppSettings["Sql_ConnectString"]); // Load ... schema and data for the table da.FillSchema(ds, SchemaType .Source, TABLENAME); da.Fill(ds, TABLENAME); // Columns in XML representation of data as attributes foreach(DataColumn col in ds.Tables[TABLENAME].Columns) ... and changed records in the DataSet to the stored procedure NText parameter @data and the XML representation of deleted records in the DataSet to the stored procedure NText parameter @datadelete...

Ngày tải lên: 21/01/2014, 11:20

... Here are descriptions of the three DiffGram sections: The DataInstanceName is the name of the DataSet or DataTable This block contains the current version of the data containing ... Northwind into a DataTable called Categories in a DataSet The first row is deleted, the second is modified, a row is inserted before the first row, and a row is added to the end of the DataTable After ... modifications, the DiffGram for the DataSet is:

Ngày tải lên: 21/01/2014, 11:20

... ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable orderTable = new DataTable(ORDERS_TABLE); da.Fill(orderTable); ds.Tables.Add(orderTable); // Fill the OrderDetails table and add it to the DataSet da = new SqlDataAdapter("SELECT ... { ds = new DataSet( "Orders_OrderDetails"); SqlDataAdapter da; // Fill the Order table and add it to the DataSet da = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["Sql_ConnectString"]); ... Orders and Order Details data If the Nested property were false, you'd have to use a second XPath query to retrieve the Order Details data from the XMLDataDocument for the DataSet [ Team LiB...

Ngày tải lên: 26/01/2014, 10:20

... 1.55 × 10-6 -10 GCGCGCGC RTAAAYAA* 18 391 11 6.52 × 10 14 7.70 × 10-12 1.65 × 10-9 1.68 × 10-12 WWWTTTGCTCR* 15 17 4.15 × 10-1 4.09 × 10-1 AAAAAAAAAAAAAAAAAAAAAAAA TAWWWWTAGM* YCCNYTNRRCCGN* GCGCNNNNNNGCGC ... “homogeneous”) of a selection of known TFs (marked with a star) as well as arbitrary candidate patterns Several known TFs appear to be highly significant (e.g., TF AAGAAAAA with a P-value of 1.31 ... (p, a) , w) for all p Î  , a Î  , w Î  * We additionally suppose that this automaton is non d-ambiguous (a DFA having this property is also called a d-th order DFA in [48]), which means that...

Ngày tải lên: 12/08/2014, 17:20

... profile of TAD supernatant and NaAc addition Observed CO2 evolution rates were similar in both cases, and the TAD supernatant VFA estimations are shown in Table Estimations showed a substantial overestimation, ... the basis of tests using the same batch of sludge sample Acetate and VFAs concentrations were verified using a Hewlett-Packard® 588 0A gas chromatograph, equipped with a flame ionization detector ... Reading (V) Figure Carbon dioxide sensor calibration with air samples TAD operation A pilot-scale, single-stage TAD (75L) equipped with a Turborator® aerator (Turborator® Technologies Inc.) was...

Ngày tải lên: 05/09/2013, 08:40

... key to the table dataTable.PrimaryKey = (DataColumn[])pkCols.ToArray(typeof(DataColumn)); // Add the table to the DataSet ds.Tables.Add(dataTable); object[] aData = new object[dataTable.Columns.Count]; ... Read all rows from the DataReader while(dr.Read( )) { // Read the row from the DataReader into an array dr.GetValues(aData); // Add the row from the array to the DataTable dataTable.Rows.Add(aData); ... ); if (schemaTable != null) { ArrayList pkCols = new ArrayList( ); DataTable dataTable = new DataTable( ); foreach(DataRow schemaRow in schemaTable.Rows) { DataColumn col = new DataColumn( );...

Ngày tải lên: 07/11/2013, 13:15

... also shared The System .Data. SqlClient class cannot automatically discover the port number of a named instance of SQL Server listening on a port other than the default 1433 To connect to a named ... Coordinator (DTC) and the Microsoft Search services are installed and used simultaneously by every installed instance of SQL Server Client tools such as Enterprise Manager and Query Analyzer are also ... string to specify the Data Source attribute for a named instance Each instance operates independently of the other instances installed on the same computer Each instance has its own set of system and...

Ngày tải lên: 14/12/2013, 18:16

... the column names used in the DataSet default to the column names defined in the data source A DataAdapter has a collection of DataTableMapping objects in its DataTableMappingCollection accessed ... DataSet, the table names default to Table, Table1, Table2, and so on You can use table mapping to rename tables created within the DataSet to match the table names in the data source or to map ... TableMappings property These objects map the name of a table in the data source to a DataTable with different name in the DataSet When a batch query is used to fill multiple tables within a DataSet, ...

Ngày tải lên: 14/12/2013, 18:16

... object that appears The NET ODBC data provider requires a reference to the System .Data. Odbc namespace in NET Framework Version 1.1 In Version 1.0, the namespace is Microsoft .Data. Odbc Add a NET ... within MSDN Library Visual Studio also supports creating ODBC data source connections visually: • • Create a data connection in Server Explorer and drag it onto a form or design surface Configure ... establish the connection to the data source The connection string format closely matches the ODBC connection string format Additionally, you can specify an ODBC data source name (DSN) or file DSN...

Ngày tải lên: 24/12/2013, 05:15

... First Page of This How -To Object Property OleDbDataAdapter ID Setting odaProducts SelectCommand SELECT ProductID, ProductName FROM Products DataSet ID dsProducts DataGrid dgProducts DataSource ... Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Put user code to initialize the page here Dim odaProdIndiv As OleDb.OleDbDataAdapter odaProdIndiv ... page Listing 5.30 wfrmHowTo5_ 8a. aspx.vb: Filling and Binding the Products to the DataGrid Object Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load...

Ngày tải lên: 21/01/2014, 12:20

... Connecting to Data Sources What Are NET Data Providers? ! Definition " ! A NET data provider is a set of classes that you use to connect to a data source, and retrieve and update data Types of NET data ... XxxCommand class, typically as a result of a SELECT SQL statement XxxDataAdapter Uses XxxCommand objects to populate a DataSet, and resolves updates with the data source For example, the SqlDataAdapter ... Introduction ADO.NET uses the NET data providers to connect to a data source, retrieve data, manipulate data, and update the data source The NET data providers are designed to be lightweight That is,...

Ngày tải lên: 24/01/2014, 10:20

... session variable DataView dv = ((DataTable)Session["DataSource"]).DefaultView; // Bind the data view to the data list dataList.DataSource = dv; dataList.DataBind( ); } private void dataList_CancelCommand(object ... data from a data source and controls the formatting using templates and styles The DataList must be bound to a data source such as a DataReader, DataSet, DataTable, or DataView—any class that implements ... DataTable CreateDataSource( ) { DataTable dt = new DataTable(TABLENAME); // Create the DataAdapter and fill the table using it SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM " + TABLENAME...

Ngày tải lên: 26/01/2014, 10:20

... data source such as a DataReader, DataSet, DataTable, or DataView Any class that implements the IEnumerable interface can be bound The easiest way to create a DataGrid control is to drag the DataList ... DataTable CreateDataSource( ) { DataTable dt = new DataTable( ); // Create a DataAdapter and fill the Orders table with it SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["DataConnectString"]); ... Update the current page for the data grid dataGrid.CurrentPageIndex = e.NewPageIndex; // Bind the data view to the data grid dataGrid.DataSource = dv; dataGrid.DataBind( ); } private void dataGrid_SortCommand(object...

Ngày tải lên: 26/01/2014, 10:20

... These data were taken from the VA’s Capital Asset Baseline Assessment Also included in the equations are several variables aimed at measuring medical education and research activity related to academic ... Patient-Level Data The patient-level data set was prepared by VHA’s Allocation Resource Center (ARC), using a set of specifications we supplied to the VA The ARC data set contains information on the annual ... steps we took to clean and prepare the data for analysis Individual Data In general, the data that were obtained for the patient-level analysis were complete, clean, and deemed reliable However,...

Ngày tải lên: 17/02/2014, 11:20

... )Ô@e5H$ÂƯ5F@$5@XUƯYÔFd)bFE5jkƯE$@e& Actual q-gram vector distance 0 0.2 0.4 0.6 0.8 1.2 Estimated vs actual q-gram vector distance, 150 sketch samples 5.5.1 Using Multiset Resemblance Actual q-gram vector distance 0 0.2 ... bC$XX5Fp5b$#rCFbFắỳắ(y`Ôắ(ể Actual resemblance 0.2 0.4 0.6 0.8 Q-gram resemblance 0.2 0.4 0.6 0.8 0.2 0.2 Q-gram vector distance Estimated resemblance 0.4 0.6 0.8 0.4 0.6 0.8 1.2 1.4 Estimated vs Actual Q-gram Resemblance, ... Resemblance Actual q-gram vector distance 0 0.2 0.4 0.6 0.8 5.5 Qualitative Experiments 1.2 Estimated vs actual q-gram vector distance, 50 sketch samples ộ ị ỉố #$rỗ ú õ ó ị ổ ọ ĩ ễ í ó õễ í ị ỉ ỉ ò ĩ...

Ngày tải lên: 19/02/2014, 12:20

... You can substitute the data type used inside the parenthesis Before manipulating a variable, you must assign a value to it You can assign a value at the time you declare a variable – we call this ... values such as grades from a test We will be studying compound data types and user defined data types later Declaring data types enables the compiler to set aside necessary amount of memory storage ... return 0; } And here is the output C++ Data Types There are simple data types such as integer, float, double, char, Bool etc that can only hold one value at a time Compound data types can have multiple...

Ngày tải lên: 20/02/2014, 08:20

... the main int dollar, quarterR, dimeR, nickelR, pennyR, remainder; Variables that are used in the main are declared There are six variables of type integer These variable names (identifiers) stand ... dollars % 10 calculate dime rolls and remainder dime_rolls = remainder / remainder = remainder % calculate nickel rolls and remainder nickel_rolls = remainder / remainder = remainder % calculate ... problem What are the known information about this programming assignemnt? There are ten dollars in a quarter roll There are five dollars in a dime roll There are two dollars in a nickel roll And there...

Ngày tải lên: 20/02/2014, 08:20

... identical data types express semantically parallel information allows us to make use of the world (or domain) knowledge incorporated in the design of these data structures, without having to separately ... Future I have sketched a practical approach to the assignment of contrastive accent in data -to- speech systems, which does not need a universal definition of alternative or parallel items Because the ... a pitch accent (or another focus marker) Pulman does not give a full definition of parallelism, but states that "to be parallel, two items need to be at least of the same type and have the same...

Ngày tải lên: 22/02/2014, 03:20