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Chapter 6 Web Controls Detailed descriptions of server controls provided by FCL.

Chapter 6 Web Controls Detailed descriptions of server controls provided by FCL. Yingcai Xiao. Chapter 7 User Controls. Yingcai Xiao. User Controls. • Custom controls built from HTML and server-side scripts. • Create your own tags and tag prefixes. • File.ASCX A simple user control:

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Chapter 6 Web Controls Detailed descriptions of server controls provided by FCL.

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  1. Chapter 6Web ControlsDetailed descriptions of server controls provided by FCL. Yingcai Xiao

  2. Chapter 7 User Controls Yingcai Xiao

  3. User Controls • Custom controls built from HTML and server-side scripts. • Create your own tags and tag prefixes. • File.ASCX A simple user control: Hello.ascx <h1>Hello, world</h1>

  4. How to Use User Controls • Usage (UserControlDemo.aspx) <%@ Register TagPrefix="Xiao" TagName="Hello" src="Hello.ascx" %> <html> <body> <form RunAt="server"> <Xiao:Hello RunAt="server" /> </form> </body> </html> TagPrefix="Xiao" defines a new tag prefix. TagName="Hello" defines a new tag using src="Hello.ascx". http://winserv1.cs.uakron.edu/Examples/C6-7-8/UserControlDemo.aspx

  5. Chapter 8 Custom Controls Yingcai Xiao

  6. • Custom-built server controls using only a server-side language (no HTML). • Derived from System.Web.UI.Control. • Create your own tags and tag prefixes. Custom Controls

  7. Creation (Hello.cs) • using System; • using System.Web.UI; • namespace WP • { • public class Hello : Control • { • protected override void Render (HtmlTextWriter writer) • { • writer.Write ("Hello, world"); • } • } • } • Note: the Render method is required to be overridden. Custom Controls

  8. • Compilation: csc /target:library Hello.cs Move Hello.dll to “bin” of the application directory. • Usage http://winserv1.cs.uakron.edu/Examples/C6-7-8/CustomControlDemo.aspx <%@ Register TagPrefix="win" Namespace="WP" Assembly="Hello" %> <html> <body> <form RunAt="server"> <win:Hello RunAt="server" /> </form> </body> </html> Custom Controls

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