RadGrid for ASP.NET AJAX

Phase

What does Telerik RadGrid do

Initialize

Telerik RadGrid initializes the settings needed during the lifetime of the incoming Web request. See Handling Inherited Events.

Loadview state

At the end of this phase, the ViewState property of Telerik RadGrid is automatically populated as described in Maintaining State in a Control.

Process postback data

Process incoming form data and update properties accordingly. See Processing Postback Data.

Load

Perform actions common to all requests, such as setting up a database query if you are using simple databinding described in Simple Data-binding topic. At this point, server controls presented in the controls tree are created and initialized, the state is restored, and form controls reflect client-side data. See Handling Inherited Events.

Send postback change notifications

Telerik RadGrid raises change events in response to state changes between the current and previous postbacks. See Processing Postback Data.

Handle postback events

Telerik RadGrid handles the client-side event that caused the postback and raise appropriate events on the server. See Capturing Postback Events.

Prerender

Perform any updates before the output is rendered. Any changes made to the state of Telerik RadGrid in the prerender phase can be saved, while changes made in the rendering phase (two steps further) are lost. See Handling Inherited Events.

Save state

The ViewState property of a control is automatically persisted to a string object after this stage. This string object is sent to the client and back as a hidden variable. For improving efficiency, a control can override the SaveViewState method to modify the ViewState property. See Maintaining State in a Control.

Render

Telerik RadGrid generates output to be rendered to the client. See Rendering an ASP.NET Server Control.

Dispose

Perform any final cleanup before Telerik RadGrid is torn down. References to expensive resources such as database connections must be released in this phase. See Methods in ASP.NET Server Controls.

Unload

Perform any final cleanup before the control is torn down.