What is Web Service?

Web Services are just like functions. We can define web service as a collection of functions which can be recalled. The description of this function calls is defined in a XML file called WSDL (Web Services Description Language). Functions are recalled through SOAP (Simple Object Access Protocol). This SOAP uses HTTP for transmission. XML is the basis for Web services. It provides a language which can be used between different platforms and programming language and still express complex messages and functions.So basically Web Services use XML to code and decode data and SOAP to transport it. Web Services are platform independent. They are also independent for the programming language. With Web Servics, Win 2k servers can be connected with UNIX servers.

What is WCF?

WCF...Windows Communication Foundation..
* Its a programming framework used to build application that inter-communicate.
* Its code name is 'Indigo'. It was released in December-2006.
* WCF uses SOAP (Simple Object Access Protocol) messages between two processes. But while communicating with a non-WCF process, XML-based encoding is used for the SOAP messages.
* A WCF service is composed of 3 parts :
1) Service class that implements service to be provided.
2) host environment to host service.
3) one or more endpoints to which clients will connect.

Use of WCF :
* Because WCF can communicate using Web services, interoperability with other platforms that also support SOAP, such as the leading J2EE-based application servers, is straightforward.
* We can also configure and extend WCF to communicate with Web services using messages not based on SOAP, for example, simple XML formats like RSS.
* WCF helps provide reliability, security, and transactions when communicating with any platform.
* It is designed to interoperate well with the non-WCF applications.

Session in Cummins college of engineering for Women

We took 1 day session and 2 days workshop on 27-28 February and 1st March in Cummins college of engineering for Women. Session was held for 2nd and 3rd year girls. In session we covered an introduction to .net,asp.net and ado.net.

Many girls attended the session. 4 staff members also attended the session. MSPs Sonali, Shrishti, Shaizeen also were involved in our session.

What is Silverlight?

Silverlight is a combination of different technology into a single development platform that allows you to select tools and the programming language you want to use. Its a programmable web-browser plugin. It has features such as animation,vector ggraphics and audio-video playback.Its a cross-browser i.e. it works with all versions of all browsers to have existed since the web began. It can be implemented and inter-operated on multiple computer platforms. It aims to compete with Adobe Flash and presentation components of AJAX. It also computes with Sun Microsystems' JavaFX, which was launched few days after Silverlight. Silverlight supports Windows Media Audio and Video (WMA, WMV7–9) and VC-1, as well as MP3 audio. It is being designed to work in conjunction with XAML and is scriptable with JavaScript. Silverlight can also be used to create Windows Sidebar gadgets for Windows Vista. Silverlight exposes a Downloader object which can be used to download content, like scripts, media assets or other data, as may be required by the application.
For more information visit http://www.silverlight.net/

GridView AutoGenerateColumns

Till now we know that gridview generates autocolumns..But I wanted to get only 1 column in gridview..For that i found a solution that there is 1 property of gridview named as AutoGenerateColumns which is by default true.We just have to make it false so that we can manually generate columns how much we want..
Example as shown below..

< asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
< Columns>
< asp:BoundField DataField="quest" HeaderText="Questions" SortExpression="Questions" />
< asp:TemplateField>
< ItemTemplate>
< asp:Label ID="lblSelect" runat="server"> < a href="showOptions.aspx?qid=< %# Eval("QuesId") %> "> Select< /a> < /asp:Label>
< /ItemTemplate>
< /asp:TemplateField>
< /Columns>

< /asp:GridView>

Welcome to Ketaki's blog

Hello all..Welcome to my blog..Get ready to learn lot about technologies like .net etc..