ASP control vs HTML control
These are the differences between asp.net controls and html controls
- HTML server controls :
HTML server controls :are HTML tags understood by the server.
HTML elements in ASP.NET files are, by default, treated as text. To make these elements programmable, add a runat="server" attribute to the HTML element. This attribute indicates that the element should be treated as a server control. The id attribute is added to identify the server control. The id reference can be used to manipulate the server control at run time.
Note: All HTML server controls must be within a < form > tag with the runat="server" attribute. The runat="server" attribute indicates that the form should be processed on the server. It also indicates that the enclosed controls can be accessed by server scripts.
Ex:
< input type="text" id="id1" runat="server" /> It will work.
HtmlTextControl class
< input type="button" id="id2" runat="sever" /> It will not work.
For html button control there is no compatiable version of control class.
corrected one is
< input type="submit" id="id2" runat="server" />
htmlButton class
< input type="reset" id="id2" runat="sever" /> This one will not work.
- ASP.NET - Web Server Controls
Web server controls are special ASP.NET tags understood by the server.
Like HTML server controls, Web server controls are also created on the server and they require a runat="server" attribute to work. However, Web server controls do not necessarily map to any existing HTML elements and they may represent more complex elements.
The syntax for creating a Web server control is:
< asp:textbox id="Textbox1" runat="server" />
These are also case insensitive. Here the important thing is to compulsory write runat="server". For HTML controls this is optional.
all HTML < input type="text" /> control's attributes are also available for these asp tagged server controls. Some special attributes are also there which we will discuss on Ajax for special attributes.