Asynchronous post back:
They are partially render a page without refreshing a whole page.(Ajax)
Typically used to trigger updates when controls outside an UpdatePanel post back If ChildrenAsTriggers="false", can be used to specify which controls inside UpdatePanel should call back rather than post-back
Synchronous PostBackTrigger:
Postback triggers update the complete page caused by complete post of the page to the server.
-Lets controls inside UpdatePanel post back
-Typically used to allow certain controls to post back when ChildrenAsTriggers="true"
They are partially render a page without refreshing a whole page.(Ajax)
Typically used to trigger updates when controls outside an UpdatePanel post back If ChildrenAsTriggers="false", can be used to specify which controls inside UpdatePanel should call back rather than post-back
Synchronous PostBackTrigger:
Postback triggers update the complete page caused by complete post of the page to the server.
-Lets controls inside UpdatePanel post back
-Typically used to allow certain controls to post back when ChildrenAsTriggers="true"
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