Chapter 4 Quick Reference

Chapter 4 Quick Reference

To	Do This
Create a custom control that takes over the rendering process	Derive a class from System.Web.UI.Control Override the Render method Visual Studio includes a project type, Web Custom Control, that fits the bill
Add a custom control to the toolbox	Show the toolbox if it's not already showing by selecting View | Toolbox from the main menu Right mouse click anywhere in the toolbox Select Choose Items from the local menu Choose a control from the list OR Browse to the assembly containing the control
Change the properties of controls on a page	Make sure the page editor is in Designer mode Highlight the control whose property you want to change Select the property to edit in the property window
Store view state information that lives beyond the scope of the page	Use the ViewState property of the control It's a name/value dictionary that contains serializable types Just be sure to use the same index to retrieve the information as you do to store the information
Write browser version-independent rendering code	Use the HtmlTextWriter tag-rendering methods for specific tags instead of hard-coding them. The Render method will have the correct HtmlTextWriter based on header information coming down from the browser.