如何在$ .getJSON中使用下拉列表值？

Question

this is my script

$.getJSON("Employee.js", function (data) { 
       var sample = data.one;alert(sample) });

and this is Employee.js file

var sample={ "one":"Manager","two":"Sr.Eng","three":"Eng" }

I am fine with this. i want to get the value from drop down list. ie my drop down list will be like follow:

 <asp:DropDownList ID="ddlEmployee" runat="server">
                        <asp:ListItem>one</asp:ListItem>
                        <asp:ListItem>two</asp:ListItem>
                        <asp:ListItem>three</asp:ListItem>
                        <asp:ListItem>four</asp:ListItem>
                    </asp:DropDownList>

i an get the value of ddlEmployee in jscript as

var sel = document.getElementById("<%=ddlEmployee.ClientID%>");
        var opt = sel.options[sel.selectedIndex].text;

Bot how to use "opt" to get the value from Employee.js file?

Answer 1

You can use bracket notation:

var opt = 'one';

var sample = { "one":"Manager","two":"Sr.Eng","three":"Eng" };

var val = sample[opt]; // Manager

Answer 2

Try below code :

var data=$.("#ddlEmployee").val();

alert(data);