Chapter 7- Building User Controls and Custom Web Controls

1. Chapter 7- Building User Controls and Custom Web Controls

2. User Controls • Reduce duplication of effort • Maintains site consistency • Examples controls: • Header/Footer • Address entry • Validation

3. User Control Creation • Requires .ascx extension • Web User Control

4. User Control <%@ Control Language="vb" AutoEventWireup="false" Codebehind="MyControl.ascx.vb" Inherits="Ch07Web.MyControl" TargetSchema="http://schemas.microsoft.com/intellisense/ie5" %> <P> Name: <asp:TextBox id="TextBox1" runat="server"> </asp:TextBox> </P>

5. User Control … <%@ Register TagPrefix="uc1" TagName="MyControl" Src="MyControl.ascx" %> … <form id="Form1" method="post" runat="server"> <uc1:MyControl id="MyControl1" runat="server"> </uc1:MyControl> </form>

9. Web Server Controls • More time to create • Implement Render( ) method • Inherits System.Web.UI.Control or • Inherits System.Web.UI.WebControls.WebControl

10. Web Server Controls

11. Web Server Controls

12. Web Server Controls

14. Lab

15. Lab