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Learning The Difference Between Web, USer and HTML Control

Posted on 2012-08-16
Medium Priority
Last Modified: 2012-08-20
I'm very, very new to .NET and have been reading a lot of great articles online about .NET and the "basic" but cannot grasp the follow basic concepts..

What is a control exactly?

What is the difference between a web, user and html control.

I see alot of articles reference controls etc.. but I cannot under the basics of what a control even is...
Question by:compdigit44
1 Comment
LVL 16

Accepted Solution

Rose Babu earned 2000 total points
ID: 38304151
      A custom control, ending in .ascx, that is composed of other web controls. Its almost like a small version of an aspx webpage. It consists of a UI (the ascx) and codebehind. Cannot be reused in other projects by referencing a DLL.

      In ASP.NET: A server control that is authored declaratively using the same syntax as an ASP.NET page and is saved as a text file with an .ascx extension. User controls allow page functionality to be partitioned and reused. Upon first request, the page framework parses a user control into a class that derives from System.Web.UI.UserControl and compiles that class into an assembly, which it reuses on subsequent requests. User controls are easy to develop due to their page-style authoring and deployment without prior compilation.
      A control hosted on a webpage or in a UserControl. It consists of one or more classes, working in tandem, and is hosted on an aspx page or in a UserControl. WebControls don't have a UI "page" and must render their content directly. They can be reused in other applications by referencing their DLLs.

Server control

      A server-side component that encapsulates user interface and related functionality. An ASP.NET server control derives directly or indirectly from the System.Web.UI.Control class.
      The superset of ASP.NET server controls includes Web server controls, HTML server controls, and ASP.NET mobile controls. The page syntax for an ASP.NET server control includes a runat="server" attribute on the control's tag. See also: HTML server control, validation server controls, Web server control.

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