... add a data-driven query tool to your ASP.NET application.
When creating database applications, even on the Web, one of your clients inevitably
wants to be able to examine the data in his database, ... buttonface
Label Name Label1
Text Tables
Label Name Label2
Text Columns
Label Name Label3
Text SQL String
Label Name Label4
Text Data Display
ListBox Name lstTables
AutoPostback True ... Name dgDisplay
AllowPaging True
ByVal e As System.EventArgs) Handles btnView.Click
Dim odaDisplay As OleDb.OleDbDataAdapter
Dim dtDisplay As New DataTable()
Try
' Take the txtSQLString...
... the day was “Do
you have aWeb site?” A well-designed Web site was a
new and exciting marketing medium that businesses and
users alike saw as a novel, nice-to-have tool. Fast-forward a
decade and ... and park your domain name for safekeeping, but are not ready to subscribe
to aWeb site hosting package, the following table can be used to evaluate potential domain name registrars sep-
arately ... support
PHP
Perl
ASP
.NET
Database Support
MS-Access
MS-SQL
MySQL
Oracle
DB2
PostgreSQL
continued
To avoid the administration hassles of having to deal with a separate Web site host and domain name registrar,
register...
... operating system.
- Easy to manage, update database: Database is located at dedicated server that
managers can maintain and update it easily.
- Quick delivery: web- based model make it portable ... load data from the system because only a part of
web page is updated. It does not need to load entire web page.
- Access management: each user can access content and use many features that are ... chapters.
2.3.2.3. Data access tier
It consists of the database server that contains all logic data of application.
Separating logic data from application into it will make program scalable and higher
performance.
Most...
... important. Javascript is being used to create dynamic web pages, validate
forms, and make interactive web pages. When combined with HTML, Javascript has a
simplified language structure, web browser ... enough for programmers to use, but
powerful enough to interact with web pages and Java applets. Javascript is a widely used
programming language for extending the capabilities of web pages.
Although ... so that his counterparts may stay for the
night. Banks are always important when they play as a third party to make business
transactions more fluent. When he needs a place as an official address...
... 13.9. Adding descriptions to the Web Service.
13.2 Create a Simple XML Web Service Using Parameters
I have seen how to create aWeb Service using the sample that Microsoft provides. This
was ... create aWeb Service that uses parameters?
Technique
For this How-To, you are going to create the start of a security Web Service. This
security Web Service is going to take in two parameters: ... Login Name and Password. It
will then check against a table that you will create of names, passwords, and security
levels.
The method you will create first will then pass back True or False...
... common or a cross-platform way of
making your pages dynamic and are falling out of use.
Java applets
Java is a cross-platform language for developing applications. When Java first hit the Web in ... several standard <object> and non-standard <applet> tags that are used to
add Java applets to aweb page. These tags tell the browser to download a Java file from a server and execute ...
dynamic web pages.
How are Dynamic Web Pages Served?
To fully understand the nature of dynamic web pages, we first need to look at the limitations of what we can
and can't do with a static...
... incorporated into web application development as a new
style.
The Basics of Web Programming with Ajax
At its core, Ajax web programming enables aweb application development team to create a site that ... revolutionary that it w
as later
adopted by other map sites such as MapQuest and Yahoo Maps. Web- based Email programs using Ajax web
programming allow users to open a message without reloading their ... not critical to the success of an SEO campaign.
Importantly
, Ajax can open up a webserver to an increased attack surface. This form of web programming
unfortunately gives a hacker more ways to...
... You can use CDO for Exchange Management for server
applications that are typically used in Internet applications, such as automatic
registration of users, and creating and managing e-mail accounts. ... contact functionality in aWeb application by using the CDO Person
object.
!
Add calendar functionality in aWeb application by using the Appointment
and CalendarMessage objects.
!
Perform ... Transport Protocol (NNTP), and
use standardized data-access formats, such as OLE DB and ActiveX
®
Data
Objects (ADO). By using CDO, you can build complete messaging, calendar,
and contact...
...
Using aWeb Service
In this section, you'll see how to use aWeb service in a Windows application.
Start VS .NET and select File ➣ New ➣ Project. Create a new Windows application
named ... application
named UseWebServiceInWindows. Drag a DataGrid, TextBox, and Button control to
your form. Set the Name property of your DataGrid to customersDataGrid. Set the Name
property of your ...
Note If your Web service is not deployed on the local computer, then replace localhost
with the name of your remote computer.
Your Web service will be located and a test page displayed (see Figure...
... name-value pairs. These are stored in a small wrapper class called
Param. Each pair holds one pair of the parameters.
class Param // A class that stores a name-value pair of parameters.
{
private String ... and accessing the data see Using Java to Manage a Database. This
file is in the documents folder of my website at http://csis.pace.edu/~wolf/documents/.
15
Accessing a Database from aWeb Page
The ... </table>
Tables are widely used in HTML to display data in even rows and columns, not just for displaying data
from a database.
The Java Processing Program
package client_server;
// DisplayAddressProcessor...
... . . .
[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); ... 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...
... the Page_ Load event is raised.
The Page_ Load event is raised whenever the Web form is loaded by a browser.
Typically, you'll place any initialization code in the Page_ Load() method. For ... can see, the WebForm1 class is derived from the System .Web. UI .Page class. In
fact, when you run your form, .NET actually creates an object of the Page class that
represents your form.
The WebForm1 ... this case, the code-
behind file is Web- Form1.aspx.cs. The AutoEventWireUp attribute indicates whether the
ASP.NET framework automatically calls the Page_ Init() and Page_ Load() event handler...