Graphical display, inheriting webcontrol class

System. Web. UI. webcontrols. webcontrol class
Main attributes:

Attribute	Type	Description
Controls	Controlscollection	Child widget
Controlstyle	Style	Style
Controlstylecreated	Bool	Returns a value indicating whether a style object is created for controlstyle.
Enabled	Bool
Tagkey	Htmltextwritertag	Obtain the system. Web. UI. htmltextwritertag value corresponding to the control.

Main Methods:
Protected virtual void addatrributetorender (htmltextwrter writer) Design Style
Protected override void render (htmltextwriter writer) overrides render
Protected virtual void rendercontrols (htmltextwriter writer) displays the control content.
Public virtrual void renderbegintag (htmltextwrtier witer)
Public virtrual void renderendtag (htmltextwrtier witer)
Public void applystyle (Style S) copies the User-Defined style to the control. If there is overlap, rewrite the control style
Publie void mergestyle (Style S) copies the specified style to the control. If there is overlap, the existing style elements of the control are not rewritten.
Public irtualstylecreatecontrolstyle () webcontrol class internal Style

Using System;
Using System. Collections. Generic;
Using System. text;
Using System. componentmodel;
Using System. Web. UI;

Namespace Usercontrols
{
[
Defaultproperty ( " Text " ),
Toolboxdata ( " <{0}: webcustomercontrol runat = Server> </(0): webcustomercontrol> " )
]
Public   Class Userrendertest2: system. Web. UI. webcontrols. webcontrol
{
Private   String Text = "" ;
Private   String Href = "" ;

Public Userrendertest2 (): Base (System. Web. UI. htmltextwritertag. Div)
{
}

[
Description ( " To show text " ),
Bindable ( True ),
Category ( " Appearance " ),
Defaultvalue ( " " )
]
Public   String Text
{
Get {ReturnText ;}
Set {Text=Value ;}
}

[
Description ( " To show href " ),
Bindable ( True ),
Category ( " Appearance " ),
Defaultvalue ( " " )
]
Public   String Href
{
Get   {ReturnHref ;}
Set   {Href=Value ;}
}


Protected   Override   Void Addattributestorender (system. Web. UI. htmltextwriter writer)
{
Writer. addstyleattribute (system. Web. UI. htmltextwriterstyle. borderstyle,"#999 1px solid");
Base. Addattributestorender (writer );
}

Public   Override   Void Rendercontrol (system. Web. UI. htmltextwriter writer)
{
Writer. addattribute ( " Onmouseover " , " This.style.css text = 'color: red' " );
Writer. addattribute (system. Web. UI. htmltextwriterattribute. href, href );
Writer. renderbegintag (system. Web. UI. htmltextwritertag. );
Writer. Write (text );
Writer. renderendtag ();
Base . Rendercontrol (writer );
}

}
}