Asp.Net Ajax Interview Questions and Answers for Experienced - 2

Question: 6

Can we call server-side code from JavaScript?

Yes, page methods and Web services are the two techniques to call the server- side code from JavaScript.

Question: 7

What are the extender controls?

The extender controls uses a block of JavaScript code to add new and enhanced capabilities to ASP.NET.

The developers can use a set of sample extender controls through a separate download-AJAX Control Toolkit (ACT).

Question: 8

Can we nest the Update Panel controls?

Yes, we can nest the Update Panel control.

Question: 9

What are the new controls introduced in ASP.NET AJAX Control Toolkit?

The following controls are introduced with the new version of AJAX Control Toolkit:

Sea Dragon Extender Control-Refers to the control that is used to deeply zoom the images. You can zoom in or out the image or the particular portion of the image by using the mouse. You can also create a menu over the Sea dragon control. This control is helpful when you want to analyze the image closely.

AsyncFile Upload Extender control–Refers to the control that provides the facility to upload and save the files on the server asynchronously. You can check the outcome either at the server or client side.

Question: 10

Describe AJAX Control Extender Toolkit?

AJAX Control Toolkit is a set of extenders that are used to extend the functionalities of the ASP. NET controls.

The extenders use a block of JavaScript code to add new and enhanced capabilities to the ASP.NET controls.

AJAX Control Toolkit is a free download available on the Microsoft site.

You need to install this toolkit on your system before using extenders.