Check ASP.Net Controls value using If Else condition in jQuery

Hi akhter,

Refer below code

$(document).ready(function () {
    $("[id$=btn]").click(function () {
        if ($("[id$=Label1]").html() == "") {
            $("[id$=Label1]").html("0");
        }
        if (parseInt($("[id$=Label1]").html()) <= 0) {
            //Selected option from dropdownlist
            alert("Please Select Dispatch.");
            return false;
        }
        else if (parseInt($("[id*=ddl]").find('option:selected').val()) <= 0) {
            //Not selected so alert user to select any option
            alert("Please Select Currency.");
            return false;
        }
    });
});