One option while using Microsoft ASP.NET AJAX is to call ASP.NET Web services (. Aerial Installation Plymouth Devon. asmx files) from the browser by using client script. The script can call a webservice containing server-based methods (Web methods) and invoke these methods without a postback and without refreshing the whole page.

However this approach could be overkill sometimes, to perform the simplest of tasks. Moreover the logic needs to be kept in a separate.asmx file. We need something that is more ‘integrated’ with our solution. Let us explore PageMethods with an example. The example we will be discussing here may not be the best example to explain PageMethods, but it will give you an idea of how to call server side code from client side. In this example, we will be connecting to the Customers table in the Northwind database.

We will have some textboxes which will accept the CustomerID and in turn return the Contact Name of that Customer. The method returning ContactName will be called whenever the textbox loses focus.

Get certified for Microsoft technology and products. Explore our online developer & computer courses and exams, and take your career to a new level. Jquery.fileDownload.js Library jQuery File Download is a cross server platform compatible jQuery plugin that allows for an Ajax-like file download experience. 620 comments ↓ #1 swapna. Very useful guide on web application testing. Thank u sooo much #2 testerqa. Very useful tutorial #3 Sameer Mandve. Really nice one. Jan 11, 2009. In this tutorial we'll write a little application that is able to read and upload local files to a remote web server using an asynchronous HTTP request. The whole application consists of three parts: the client side comprised of JavaScript, HTML and a little CSS; the server side script, written in PHP.

We will be using the onblur event where a javascript code will take in the value(CustomerID) from the textbox. This javascript function will then call a PageMethod (server side code) which returns the ContactName without any page refresh. Suprotim Agarwal, MCSD, MCAD, MCDBA, MCSE, is the founder of,, and.

He has also authored a couple of books and a new one recently. Suprotim has received the prestigious for nine times in a row now. In a professional capacity, he is the CEO of A2Z Knowledge Visuals Pvt Ltd, a digital group that represents premium web sites and digital publications comprising of Professional web, windows, mobile and cloud developers, technical managers, and architects. Get in touch with him on Twitter @, or befriend him on. Emil Ruder Typography A Manual Of Design Pdf on this page.

Comment posted by Suprotim Agarwal on Friday, April 25, 2008 10:45 AM Sateesh, Shailesh, Anh Vo: Thanks Venjoy: That's as the files get reloaded on each partial postback when kept in the Sundar, Zeeshan: That's the way the syntax works. The first 'set' of parameter in the PageMethods call is the parameter passed to the class method. Note that in our case, GetContactName takes only one parameter, that is custid. If the GetContactName took two parameters, the first 'set' of parameter would contain two parameters as shown below: PageMethods.GetContactName(ctrl.value, secondparam, CallSuccess, CallFailed, dest); The next 'optional' parameters are a callback for success and failure.

The final parameter is the destination textbox where the value of the ContactName is displayed. I hope it is clear now. James: That's a very good point!! Check this link over here: http://ajaxwidgets. Mini Kms Activator For Microsoft Office 2010 Free Download. com/Blogs/thomas/ajax_pagemethods_in_usercontro.bb. Comment posted by Suprotim Agarwal on Wednesday, August 13, 2008 8:46 PM Chris: It's a callback feature. The first 'set' of parameter in the PageMethods call is the parameter passed to the class method. Note that in our case, GetContactName takes only one parameter, that is custid.