Calling server side event in asp.net from java script

Question

Surely will be marked as duplicate one but after tons of question and example i couldn\'t solve my problem.
What i want?
Calling server side event

Answer 1

it can work!!

if you call __doPostBack('btninsert', ''), add below to Page_Load

 protected void Page_Load(object sender, EventArgs e)
{
    if ( Request["__EVENTTARGET"] == "btninsert" ) {
        btninsert_Click(sender, e);
    }
}