asp.net - How to Use ScriptManager.RegisterClientScriptBlock from Javascript -


i want use 

scriptmanager.registerclientscriptblock(ctrlname, page.gettype(), "msg", _script, false)

from javascript function in

onclientclick="checkmaxlength(this);"

of textbox. want show custome popup.i able use in .cs want use inside javascript.

the whole point of function make client run line of javascript, from server.

from javascript code, can run more code directly.


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