... at a real-world application and how you would implement it as an AJAX applica-
tion quickly, simply, and powerfully using ASP. NET AJAX.
CHAPTER 10
■
BUILDING A SAMPLE APPLICATION USING ASP. NET ... start by creating a new ASP. NET AJAX- enabled web site. Create the basic lay-
out of the application along with the corresponding
TabContainer
and
TabPanel
controls
from the ASP. NETAJAX Control ... 17–23
ASP. NET AJAX. See also ASP. NET AJAX
client libraries
architecture, 25–29
Extensions, 28–29
JSON, 28
Microsoft AJAX Library, 26–27
financial research application, 225–256
application architecture,...
...
Using aWebService
In this section, you'll see how to use aWebservice in a Windows application.
Start VS .NET and select File ➣ New ➣ Project. Create a new Windows application
named ... the local computer, then replace
localhost in this code with the name of your remote computer.
This code creates an object named myCustomersService to call your Web service, and
displays the ... then replace localhost
with the name of your remote computer.
Your Webservice will be located and a test page displayed (see Figure 17.8
).
Note Once again, if your Webservice is not...
... [ Team LiB ]
Recipe 4.11 Updating Server Data UsingaWebService
Problem
You want to update a data source using an XML webservice and use the webservice
from your client application. ... . . .
[WebMethod]
public DataSet LoadOrders( )
{
DataSet ds = new DataSet( );
SqlDataAdapter da;
// Fill the Order table and add it to the DataSet.
da = new SqlDataAdapter("SELECT ...
Use a DataSet object.
The XML webservice code contains two methods:
LoadOrders( )
Creates and returns a DataSet containing the Orders and Order Details tables from
Northwind and a DataRelation...
... orders table to the grid.
dataGrid.DataSource = ds.Tables[ORDERS_TABLE].DefaultView;
Discussion
An XML webservice is software that is accessible using Internet standards such as XML
and HTTP. ... "Order_OrderDetails_Relation";
// . . .
[WebMethod]
public DataSet LoadOrders( )
{
DataSet ds = new DataSet( );
SqlDataAdapter da;
// Fill the Order table and add it to the DataSet. ... da.FillSchema(orderTable, SchemaType.Source);
da.Fill(orderTable);
ds.Tables.Add(orderTable);
// Fill the OrderDetails table and add it to the DataSet.
da = new SqlDataAdapter("SELECT * FROM...
... ds.Tables.Add(orderDetailTable);
[ Team LiB ]
Recipe 4.11 Updating Server Data UsingaWebService
Problem
You want to update a data source using an XML webservice and use the webservice ... . . .
[WebMethod]
public DataSet LoadOrders( )
{
DataSet ds = new DataSet( );
SqlDataAdapter da;
// Fill the Order table and add it to the DataSet.
da = new SqlDataAdapter("SELECT ...
}
[WebMethod]
public bool UpdateOrders(DataSet ds)
{
// Create the DataAdapters for order and order details tables.
SqlDataAdapter daOrders =
new SqlDataAdapter("SELECT * FROM...
... method to return a DataSet with a DataTable
containing all the rows from the Customers table (see Figure 17.6
). Notice that the space
characters in the whereClause parameter value have been converted ... returns a DataSet with a DataTable containing the one
row from the Customers table with a CustomerID of ALFKI, as shown in Figure 17.5
.
Notice that the equals (=) and single quote (') characters ... 'ALFKI'
As you can see from Figure 17.5
, the DataSet is returned as an XML document. You can
use this XML in your client programs that use the Web service. You'll see how to write a
client...
... SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.CommandText = selectString;
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = ... null;
Creating aWebService
In this section, you'll create aWebservice that contains a method that returns a DataSet
containing rows from the Customers table.
Start VS .NET and select ... Customers class is derived from the System .Web. Services.WebService
class, which indicates that the Customers class forms part of aWeb service.
Near the end of Listing 1.1
, you'll notice a method...
... people's Web services in
your system. You can even register Web services for your own organization's intranet
and build an internal system made up of Web services written internally. ... XML WebService Today link (see Figure 17.11
). You can search for
Web services using the Find AService page.
Figure 17.11: The XML Web Services page
From the UDDI WebService Registration ... Logging in usinga Microsoft Passport account
Note If you don't have a Passport account, click the Get One Now link and sign up for a
Passport account.
Enter your email address, name, and...
... Consuming aWebService That Uses ADO .NET
How to Build aWebService That Returns Database Information
!
Web services that return database information
typically:
"
Establish a connection ... class.
!
What are some other ways that you could fill the local DataSet with data
other than by usinga DataAdapter?
!
What is the purpose of creating an empty, local instance of a DataSet? ... USE
******************************
A Webservice is a unit of programmable logic that is accessible by using
standard Web protocols such as HTTP and XML. AWebservice can be used
locally by a single application, or...
... standard, accepted, and well-understood protocol called
HTTP to transmit data, and a portable data format that is based on XML. HTTP and
XML are both standardized technologies that can be used ... can concentrate on building aWeb service.
Web Services Enhancements
Not long after Web services became a mainstream technology for integrating distributed
services together, it became apparent ... values, and for describing the types of parameters and return values. When a client calls a
Web service, it must specify the method and parameters by using this XML grammar.
SOAP is an industry...
... Â-
CGCTACAGCCTCCTACNNNAT
CGAAGGTGCTTGG-3Â, w ith AAC and GAG as the
mutated codons for Q39N and Q39E, respectively. For
mutation at position E451, the primer sequence was
5Â-
GGAGTCTAATGGACAACTTTNNNTGGATGGA
GGGTTATATTGAGCG-3Â,withGAC,CAAandTCA
as ... ÔeÕ stands for an equatorial
hydroxyl and a for a n axial one. Therefore, the interaction
between any residue at position 39 and an equatorial 4-OH
was called /4e, and between any residue at position ... analysis
Sandro R. Marana, Eduardo H. P. Andrade, Cle
´
lia Ferreira and Walter R. Terra
Departamento de Bioquı
´
mica, Instituto de Quı
´
mica, Universidade de Sa
˜
o Paulo, Sa
˜
o Paulo, Brazil
The...
... create. The available default options are as follows:
ASP. NETWeb Site: This is aweb site that uses ASP. NET to execute. It comes with a
sample file called
Default.aspx, which is an ASP. NETWeb ... interrogate the request
parameters. You’ve seen many URLs that look like this:
http://server/page.aspx?param=value¶m=value
When ASP. NET sees acall like this, it creates an array of name/value ... web service.
Take a look at what happens when you create a new ASP. NET page. Create a new web
application and take a look at the
Default.aspx page that is created for you. You can see
the HTML...