Answer / suresh kumar

i think you can aslo page apply used with master page...
but control is only providing the add control not page...

Answer / vidit tyagi

user control
1)it extension is .ascx.
2)it can be more than one on single web page.
3)it doesn't contain Contentplaceholder.
4)it doesn't work like a fixed template.it can be
display in diffrent manner in diffrent page.
MasterPage:
1) it extension is .Master.
2)it used like a template.
3)it contain ContentPlaceHolder

Answer / dhina

In dotnet 1.1, developers where using user controls for the
website navigation, footers which were standard for all the
web pages, this was covered in 2.0 as master pages.

Answer / e l v prasad

Master Page:
1. It is a template and however it has all the events as
applicable to the web page.
2. It can be designed in one language and can be used for
the web pages of all the .NET supported languages.
3. Master Page can be assigned in web.config file so that
the web pages in the project will automatically use Master
page.
4. Master Page can be used for web page within a specific
folder by declaring a web.config file for that.
5. Master Page contents in the Content Page will be
displayed while working with the application.
6. Master Page contents which not editable in the Content
Page will be displayed in the gray color.
7. Duplication of templates is not possible with the master
pages.

User Control:

1.It is designed from the existing controls in the .NET. It
has to be registered witha @Regisgiter page directive.
2.Designing of User control in one language and can't be
used in web pages of all the .NET compliant languages.
3. It must be registered in each and every web page, where
it has to be used.
4. There is no scope to use the User Control to a web pages
within a specific folder or project like Master Page
5. User Control contents will not be displayed during
design time.
6. All the User control contents will appear in web pages
as gray color and there is no scope to change editable
template contents as in Master Pages.
7. There is a possibility of duplication in web pages with
the User Controls

Answer / romit & kalpesh

master page is used when you want consistant look.
whereas user control is used to create your own control
using asp.net built-in control.

Answer / brijesh pandey

Master page have content place holder and in master page we
can't implement bussiness logic but in web user control we
can implement bussiness logic.

Answer / ramkumar

Master pages are easy to use and can be nested. where as
user control this tasks are typical.

Answer / ramesh

master page is pure ajax enabled technology ,we can post some particular part of the page using master page

Answer / dushyant

basicaly master page is used to page layout,it means master
page will common to all page but it not 4 user cantol

Answer / fuad

I look for the answer of this question too. I have project
in ASP.NET 1.1 in this project there is just one aspx. in
this page there is placeHolder and by client's reuqest page
loads different user controls into the placeHolder. the aspx
file likes MasterPage. now i converted the project into
ASP.NET 3.0. I don't know should i change the aspx file to
master and user controls to content pages or not??

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