What is the Difference between user and server controls?

Answer Posted / guest

There are two main categories of creatable Web controls.
User controls are more simple to create, but custom
controls are more simple to use. The extra effort that goes
into creating custom controls pays off for the developer
using the control at design time.

User controls are saved with an ASCX file extension.
Although they can be easily reused on any of the pages
within the project in which they were created, there is no
good way to reuse them in a different project. Another
downside to user controls is that they only appear on the
page at run time; at design time they appear on the page as
an ugly gray box, making it difficult to envision how
they'll appear to your users.

Custom controls can do everything that user controls can
do - and much more. The biggest drawback is that they are
more challenging and complex to create. Drag and drop is
not supported for the creation of these controls.
Therefore, all the HTML they output must be generated via
code. Pretty much all the articles & controls on this web
site are examples of custom controls. In addition to run-
time functionality without limits, custom controls support
rich design-time functionality. They can appear on a page
at design time the same way they'll appear at run time, or
differently if preferred. They can be adjusted to change
how they'll appear in the toolbox, and how the properties
will appear in the properties window. If the properties
window doesn't support the desired functionality, it can be
extended with custom popup dialog boxes and other UI
tricks. Custom controls are easily distributed and can be
enhanced with help documentation and licensing
functionality, allowing them to be sold to other developers.

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Which method do you use to kill explicitly a users session?

847


Which is an advantage of application service providers?

697


What is a postback ispostback and autopostback in asp net?

691


What is cross page posting? How is it done?

743


Difference between .NET and previous version?

2328


By default, Web API sends HTTP response with which of the following status code for all uncaught exception?

1305


What are validator? Name the validation controls in asp.net? How do you disable them? Will the asp.net validators run in server side or client side? How do you do client-side validation in .net? How to disable validator control by client side javascript?

790


What is the concepts of globalization and localization in .net?

753


Can you explain how ASP.NET application life cycle and page life cycle events fire?

830


Why cyclomatic complexity is important?

791


Why would a company use an application service provider?

719


What is autopost?

756


What is the use of placeholder control?

772


What is the equivalent of date() and time() in asp.net?

752


Will the asp.net validators run in server side or client side?

898