c# - Dynamically changing an asp.net control's property -

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i'm using 2 components essential objects namely downloader , file explorer. doesn't matter.

the file explore (similar window's file explorer) has client api can fire event when select file using it. event fire uses javascript function:

function file_selected(fe) {
var filename = fe.getselectedfile(); foo(filename); }

the downloader has property want update using filename. how can client side? in code-behind it's easy: downloader.filepath = ""; event fires client side. heard ajax have no experience it, i'm struggling find solution.

this depends on control , not general question asp.net controls.

there documentation if there api. ajax nothing more asynchronous javascript , xml, doesn't feel relevant problem.


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