In three ways we can do partial page updates:
* Implementing partial page updates with Command Links and Buttons using rerender attribute.
* Providing status for asynchronous operations that occur in background while a page user continues to work using <apex:actionstatus>.
*Applying ajax behavior to events on any component using <apex:actionsupport> tab.
* Implementing partial page updates with Command Links and Buttons using rerender attribute.
* Providing status for asynchronous operations that occur in background while a page user continues to work using <apex:actionstatus>.
*Applying ajax behavior to events on any component using <apex:actionsupport> tab.
