Hi,
Please refer below code.
JavaScript
function SetDatePicker() {
$("[id*=txtDate]").persianDatepicker();
};
$(function(){
SetDatePicker();
});
var prm = Sys.WebForms.PageRequestManager.getInstance();
if (prm != null) {
prm.add_endRequest(function (sender, e) {
if (sender._postBackSettings.panelsToUpdate != null) {
SetDatePicker();
};
});
};
and you dont need to write endRequest event for each Update Panel
I hope this will help you out.