... Example 3-5. File: ADOCookbookCS0305.aspx.cs // Namespaces, variables, and constants using System; using System.Threading; using System.Globalization; using System .Data; using System .Data. SqlClient; ... user's culture. [ Team LiB ] [ Team LiB ] Recipe 3.5 Localizing Client-Side DatainaWebFormsApplication Problem You need to format dates and currency values according to the culture ... server's settings. The sample code-behind for the WebForms page contains one event handler and a single method: Form.Load Creates the CultureInformation object based on the user's settings....
... ); 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 ... // Bind the data view to the data grid. dataGrid.DataSource = dv; dataGrid.DataBind( ); } private void dataGrid_CancelCommand(object source, System .Web. UI.WebControls.DataGridCommandEventArgs...
... statement to retrieve the required image from the database and retrieve the image using a DataReader. A DataTable or DataSet filled using a DataAdapter can also be used. 3. Set the ContentType property ... 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 aweb page ... Rendering an image from a database inaWebForms Image control is easy to do, but not straightforward. Fortunately, it is much simpler with ASP.NET than it was in ASP. Two web pages are required:...
... dataList.DataSource = CreateDataSource( ); dataList.DataKeyField = "Id"; dataList.DataBind( ); } } private DataTable CreateDataSource( ) { DataTable dt = new DataTable(TABLENAME); ... displays tabular data from adata source and controls the formatting using templates and styles. The DataList must be bound to adata source such as a DataReader, DataSet, DataTable, or DataView—any ... </asp:Button> <%# DataBinder.Eval(Container.DataItem, "Id") %>; <%# DataBinder.Eval(Container.DataItem, "IntField") %>; <%# DataBinder.Eval(Container.DataItem,...
... dataGrid.DataBind( ); } } private DataTable CreateDataSource( ) { DataTable dt = new DataTable( ); // Create a DataAdapter and fill the Orders table with it. SqlDataAdapter da ... adata 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 ... dataGrid.CurrentPageIndex = e.NewPageIndex; // Bind the data view to the data grid. dataGrid.DataSource = dv; dataGrid.DataBind( ); } private void dataGrid_SortCommand(object...
... the database. Using a DataGrid Control to Access a Database A DataGrid allows you to access rows ina database table. In the following sections, you'll learn how to create an ASP.NET ... create a DataSet object. You use a DataSet object to store a local copy of the information stored in the database. A DataSet object can represent database structures such as tables, rows, and ... the data for your DataGrid. In this example, the DataSource is dataSet11. • DataMember The DataMember is the name of the table to which your DataGrid is bound. In this example, the DataMember...
... duplicate mapping names are used. The DataGridTextBoxColumn class inherits from the abstract DataGridColumnStyle class. It defines the attributes, display format, and behavior of cells ina DataGrid ... to the DataSource. The MappingName of each DataGridColumnStyle object must be associated with the name of a DataColumn to synchronize the DataGrid display column with the data column. An exception ... sender, System.EventArgs e) { // Update the data using the DataAdapter. da.Update(dt); } Discussion The TableStyles property of the DataGrid exposes a collection of DataGridTableStyle objects....
... within the data source, such as a row in a DataTable. The BindingContext class is used to instantiate a BindingManagerBase object and either a CurrencyManager or PropertyManager object is ... returned depending on the type of data source: • The CurrencyManager class inherits from the BindingManagerBase class and maintains a pointer for the current item inadata source that implements ... ds; private SqlDataAdapter da; private BindingManagerBase bm; // . . . private void DisplayDatabaseImageForm_Load(object sender, System.EventArgs e) { // Create the DataSet. ds...
... . . . [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new SqlDataAdapter("SELECT ... SqlDataAdapter daOrders = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["DataConnectString"]); SqlDataAdapter daOrderDetails = new SqlDataAdapter("SELECT ... 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 and a DataRelation...
... Creating a Windows FormsApplication So far you have used Visual Studio 2005 to create and run a basic Console application. The Visual Studio 2005 programming environment also contains everything ... Visual Studio 2005 actually generates a potentially large amount of code. This code performs operations such as creating and displaying the form when the application starts, and creating and ... everything you'll need to create graphical Windows applications. You can design the form-based user interface of a Windows application interactively by using the Visual Designer. Visual Studio...
... Orders and Order Details tables from Northwind and a DataRelation between those tables. UpdateOrders( ) Takes a DataSet argument containing the changes made to the DataSet created by the LoadOrders( ... Details]", ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable, SchemaType.Source); ... "Order_OrderDetails_Relation"; // . . . [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da =...
... W3C XML Path Language (XPath) is a navigation language used to select nodes from an XML Document. It is defined by W3 as a standard navigation language. The specification can be found at http://www.w3.org/TR/xpath. ... Form.Load Sets up the sample by creating a DataSet containing the Orders table and Order Details table from Northwind and a nested relation between the two tables. Go Button.Click Executes an ... functionality more conveniently than could be accomplished using the DataSet directly. To execute an XPath query against the contents of a DataSet, call the SelectSingleNode( ) method of the XmlDataDocument...