binding data to a web forms datalist

... dataList. DataSource = CreateDataSource( ); dataList. DataKeyField = "Id"; dataList. DataBind( ); } } private DataTable CreateDataSource( ) { DataTable dt = new DataTable(TABLENAME); ... The DataList Web Forms control displays tabular 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, ... DataReader, DataSet, DataTable, or DataView—any class that implements the IEnumerable interface can be bound. The easiest way to create a DataList control is to drag the DataList control onto the web...

Ngày tải lên: 26/01/2014, 10:20

... ); dataGrid.DataKeyField = "OrderId"; dataGrid.DataBind( ); } } private DataTable CreateDataSource( ) { DataTable dt = new DataTable( ); // Create a DataAdapter and ... bound to a 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 ... 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

... culture. [ Team LiB ] [ Team LiB ] Recipe 3.5 Localizing Client-Side Data in a Web Forms Application Problem You need to format dates and currency values according to the culture ... Sample data that might come from a database // displayed according to culture set by user. dateLabel.Text = DateTime.Now.ToString("D"); shortDateLabel.Text = DateTime.Now.ToString("d"); ... client rather than the server. Solution Use client culture and encoding to return data to the client formatted according to the client's localization settings rather than the server's...

Ngày tải lên: 28/10/2013, 18:15

... ); dataGrid.DataKeyField = "Id"; dataGrid.DataBind( ); } private DataTable CreateDataSource( ) { DataTable dt = new DataTable(TABLENAME); // Create the DataAdapter and ... Session["DataSource"] = dt; return dt; } private DataTable UpdateDataSource(DataTable dt) { // Create a DataAdapter for the update. SqlDataAdapter da = new SqlDataAdapter("SELECT ... table and stores the DataTable to a Session variable to cache the data source for the DataGrid. UpdateDataSource( ) This method creates a DataAdapter and uses it with updating logic generated...

Ngày tải lên: 26/01/2014, 10:20

... required tasks: 1. Create a web page that outputs a binary stream containing the image from the database. 2. Create a SQL statement to retrieve the required image from the database and retrieve ... display an image from a database column in an ASP.NET control. Solution Fill an ASP.NET Image control from a database field by pointing the ImageUrl property of an Image control to a web page ... the image using a DataReader. A DataTable or DataSet filled using a DataAdapter can also be used. 3. Set the ContentType property of the HttpResponse object to the MIME type of the image in...

Ngày tải lên: 28/10/2013, 18:15

... [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new SqlDataAdapter("SELECT ... 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 ... SqlDataAdapter daOrders = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["DataConnectString"]); SqlDataAdapter daOrderDetails = new SqlDataAdapter("SELECT...

Ngày tải lên: 24/12/2013, 05:15

... [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new SqlDataAdapter("SELECT ... Northwind and a DataRelation between those tables. UpdateOrders( ) Takes a DataSet argument containing the changes made to the DataSet created by the LoadOrders( ) method, creates two DataAdapter ... return ds; } [WebMethod] public bool UpdateOrders(DataSet ds) { // Create the DataAdapters for order and order details tables. SqlDataAdapter daOrders = new SqlDataAdapter("SELECT...

Ngày tải lên: 26/01/2014, 10:20

... Simple data binding binds an ASP.NET web control property to a single value in a data source. The values can be determined at runtime. Although most commonly used to set control properties to display ... Team LiB ] Recipe 7.1 Binding Simple Data to Web Forms Controls P roblem You need to bind a field of data to a server-side control. S olu t ion Use the DataBind( ) method. The Web Forms ... display data, any property of the control can be bound—for example, the background color or size of the control. The Visual Studio .NET Properties window provides a tool to create data- binding...

Ngày tải lên: 26/01/2014, 10:20

... Table 7-1. Complex data -binding properties Property Description DataSource Gets or sets the data source that the control is displaying data for. Valid data sources include DataTable, DataView, ... data binding describes binding a multi-record control to multiple records in a data source. The DataGrid, DataList, and ListBox controls are examples of controls that support complex data binding. ... System.Configuration; using System .Data; using System .Data. SqlClient; // . . . private void Page_Load(object sender, System.EventArgs e) { // Create a DataAdapter and use it to retrieve ID and Name...

Ngày tải lên: 26/01/2014, 10:20

... ConfigurationSettings.AppSettings["Sql_Msde_ConnectString"]); Manager and Query Analyzer are 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 ... need to understand what a SQL Server or MSDE named instance is and how to connect to one. The sample code contains a single event handler: Connect Button.Click Creates and opens a connection to ... [ Team LiB ] Recipe 1.7 Connecting to a Named Instance of SQL Server or Microsoft Data Engine (MSDE) Problem You want to connect to a named instance of a SQL Server or Microsoft Data Engine...

Ngày tải lên: 14/12/2013, 18:16

... create a data adapter called odaCategories and load the categories SQL Statement into it. The dtCategories data table is filled and set as the DataSource property of ddCategories. The DataTextField ... DataTextField and DataValueField of ddCategories are then set. After that, the DataBind method of the DropDown is called. This is necessary for binding data to the server controls on Web Forms. Finally, ... Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Put user code to initialize the page here Dim odaCategories As OleDb.OleDbDataAdapter ...

Ngày tải lên: 24/12/2013, 06:17

... . . . [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new SqlDataAdapter("SELECT ... ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable, SchemaType.Source); da.Fill(orderDetailTable); ds.Tables.Add(orderDetailTable); ... ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderTable = new DataTable(ORDERS_TABLE); da.FillSchema(orderTable, SchemaType.Source); da.Fill(orderTable); ds.Tables.Add(orderTable);...

Ngày tải lên: 21/01/2014, 11:20

... a Row in the Data Grid to a Detail Page Often, I need to zero in and display data based on a record in the DataGrid control. How do I display detail information in a separate page from a DataGrid ... How -To for editing data. Using data with your Web Forms is not much harder than using Windows Forms. Just remember to stash some variables for round trips to the server and to bind your data. ... 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...

Ngày tải lên: 21/01/2014, 12:20

... directly. To execute an XPath query against the contents of a DataSet, call the SelectSingleNode( ) method of the XmlDataDocument for the DataSet, passing the XPath query as an argument as shown ... DataRelation relating the tables containing the 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 ... XPath to Query Data in a DataSet Problem You need to use an XPath expression to extract certain rows from a DataSet. Solution Use SelectSingleNode( ) or SelectNodes( ). The sample code contains...

Ngày tải lên: 26/01/2014, 10:20

... QuikChange site-directed mutagenesis kit (Stratagene, La Jolla, CA, USA). Plasmid pET-1TK was used as template and Kleb(HtoA)fw (5¢-GCTTAGCCGCGCCGGCATTCG) and Kleb(HtoA)rv (5¢-CGAATGCCGGCGCGGCTAAGC) ... glucose- 1-phosphatase and human prostatic-acid phosphatase. The polypeptide chain is organized into an a and an a ⁄ b domain, and the active site is located in a positively charged cleft between the domains. ... 3420 E-mail: heinemann@mdc-berlin.de Database Structural data have been submitted to the Protein Data Bank under the accession numbers 2WNI (native PhyK) and 2WU0 (PhyK H2 5A) Note *These authors...

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