adding controls to a web forms

... 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, ... dataList.DataSource = CreateDataSource( ); dataList.DataKeyField = "Id"; dataList.DataBind( ); } } private DataTable CreateDataSource( ) { DataTable dt = new DataTable(TABLENAME); ... 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 page...

Ngày tải lên: 26/01/2014, 10:20

... 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.DataKeyField = "OrderId"; dataGrid.DataBind( ); } } private DataTable CreateDataSource( ) { DataTable dt = new DataTable( ); // Create a DataAdapter and fill ... to drag the DataList control onto the web page design surface. The DataGrid control uses templates to display items, control layout, and provide functional capabilities similar to the DataList...

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

... 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 ... Rendering an image from a database in a Web Forms 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:...

Ngày tải lên: 28/10/2013, 18:15

... Command object to add a table to an existing SQL Server database. The C# code is shown in Example 10-8 . Example 10-8. File: AddTableToDatabaseForm.cs // Namespaces, variables, and constants ... Team LiB ] Recipe 10.8 Adding Tables to a Database Problem You need to add a table to an existing database. Solution Use the CREATE TABLE statement. The sample code executes the DDL statement—using ... String createSql = "CREATE TABLE MyTable " + "(MyTableId int IDENTITY(1,1) PRIMARY KEY CLUSTERED)"; SqlCommand cmd = new SqlCommand(createSql, conn); // Create the table...

Ngày tải lên: 21/01/2014, 11:20

... dataGrid.DataKeyField = "Id"; dataGrid.DataBind( ); } private DataTable CreateDataSource( ) { DataTable dt = new DataTable(TABLENAME); // Create the DataAdapter and ... 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 ... Session["DataSource"] = dt; return dt; } private DataTable UpdateDataSource(DataTable dt) { // Create a DataAdapter for the update. SqlDataAdapter da = new SqlDataAdapter("SELECT...

Ngày tải lên: 26/01/2014, 10:20

... the member's details, the Add button will validate and store the data. The user can click Clear to reset the controls on the form and cancel any data entered. Add Windows Forms controls ... relational database. Some columns in a table in a database allow null values, indicating that the value held is not defined or is unknown. If you want to display this data in a CheckBox, you can ... properties dynamically in your own programs, and there are a number of properties that are available only at run time. If you want to learn more about the different properties available for each type...

Ngày tải lên: 26/01/2014, 12:20

... data and vector data. Raster data is nothing more than a top-down photograph of the earth. It can be an image from a satellite or an aerial photo. Cartographers call it raster data strictly for ... important, how to get at the hidden metadata that moves it from being simply pretty pixels to true geographic data. Chapter 5—Spatial Databases You’re probably going to want to store your geodata in a database ... name to US States. This affects the label that appears in the Layers list. Note that you can also set layers to appear and disap- pear based on your zoom level. For example, displaying a detailed city...

Ngày tải lên: 14/03/2014, 09:20

... 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

... </asp:ListBox> The code-behind contains one event handler: Page.Load Fills a DataTable with the CategoryID and CategoryName from the Categories table in the Northwind sample database. ... 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 ... Complex 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...

Ngày tải lên: 26/01/2014, 10:20

... AutoPostBack True Label Caption Customer ID Label Caption Company Name Label Caption Contact Label Caption Contact Title Label Caption Address Label Caption City Label Caption Region Label ... Setting OleDbDataAdapter ID odaCustomerList SelectCommand Select CustomerID, CompanyName From Customers DataSet ID dsCustomerList OleDbDataAdapter ID odaCustomerIndividual SelectCommand Select ... Me.txtCustomerID.DataBind() Me.txtCompanyName.DataBind() Me.txtContactName.DataBind() Me.txtContactTitle.DataBind() Me.txtAddress.DataBind() Me.txtCity.DataBind() Me.txtRegion.DataBind()...

Ngày tải lên: 26/01/2014, 11:20

... origin and quality on the packag- ing of certified products such as Italian Parmigiano-Reggiano, Colombian Coffee and Greek Feta, serve as a legal safeguard against fraudulent imitations and also as ... obtains protection, in the best-case scenario, as a trademark. Meanwhile, in coun- tries such as Thailand, Malaysia or Indonesia, for example, handicraft and industrial products can aspire to a ... producers and companies whose aim is to add value to a traditional product of regional origin and act as a platform for the fair and balanced coordination of interests and efforts in the same value...

Ngày tải lên: 18/02/2014, 21:20

... and Macs at a Computer- land retail store during high school. He later joined the development world as a programmer and architect, building large-scale applications in C++, Java, and VB. As an ... software or hardware products described herein. Trademark Notice Rather than indicating every occurrence of a trademarked name as such, this book uses the names only in an editorial fashion and to ... typically learn to add a little extra to the project estimation so that they can remove it later in the negotiations under the guise of a “discount.” Clearly, this situation negates any actual savings that...

Ngày tải lên: 08/03/2014, 20:20

... JavaScript 12 Summary 12 Assignment 13 2 USING VARIABLES AND BUILT-IN FUNCTIONS TO UPDATE YOUR WEB PAGES AUTOMATICALLY 15 Variables Store Information 16 Syntax of Variables 16 Naming Variables ... desktop applications. Here you’ll be introduced to Ajax and most of the JavaScript you’ll need to know to create Ajax applications. Chapter 15: XML in JavaScript and Ajax The X in Ajax stands ... 2: Using Variables and Built-in Functions to Update Your Web Pages Automatically Did you know that JavaScript can figure out what day it is and write the date to a web page? This chapter will...

Ngày tải lên: 28/04/2014, 16:58

... wrote Java as a general programming language that works on all kinds of operating systems. As you’ll see in Appendix A , though JavaScript can talk to Java programs, they’re two totally separate ... from recalcitrant engineers. Java Although JavaScript and Java have similar names, they aren’t the same. Netscape initially created JavaScript to provide interactivity for Web pages, and Sun ... information to your Web page. Before getting into the nuts and bolts of functions and variables, let’s take a look at an example of a Web page that automatically updates itself. If you visit National...

Ngày tải lên: 28/04/2014, 16:58

Ngày tải lên: 27/05/2014, 12:52

Ngày tải lên: 03/07/2014, 08:20

Ngày tải lên: 03/07/2014, 08:20

Ngày tải lên: 03/07/2014, 08:20

Ngày tải lên: 03/07/2014, 08:20