Selected value of a dropdown list

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How to get the selected value of a dropdownlist in code behind?

In my aspx page I have a dropdown list

XML

<asp:DropDownList ID="cityName" runat="server">
</asp:DropDownList>

Using Jquery, I'm adding data

C#

var city = $("#city").val();
    if (city.toString() != "") {

        var citySelect = $('#cityName');
        citySelect.append($('<option></option>').val('0').html('-Select City-'));
        for (i = 0; i < City.response_list.length; i++) {
            citySelect.append($('<option></option>').val(City.response_list[i].id_city + " - " + City.response_list[i].label).html(City.response_list[i].id_city + " - " + City.response_list[i].label));
        }
    }

In code behind when I try to get the selected value,
I'm getting "System.NullReferenceException: Object reference not set to an instance of an object"

How to get the selected value?

Posted 12-Jul-13 2:37am

sunpop

Updated 15-Jul-13 8:42am

v5

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Comments

Asp_Learner 12-Jul-13 10:35am

Paste your code ,so that we can find out what exactly is happening

sunpop 15-Jul-13 14:44pm

I've updated my question by including the code.

ThatsAlok 13-Jul-13 1:37am

Agreed with ASP_learner we ought to know what excatly is your code, before responding

sunpop 15-Jul-13 14:44pm

I've updated my question by including the code.

footballpardeep 15-Jul-13 15:48pm

Are you sure,Items get added into the dropdownlist.

sunpop 16-Jul-13 1:00am

yes, Items are added, from that I'm selecting too. But in code behind I'm getting that 'null' problem.

5 solutions

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maneavnash · Answer 1 · 2013-07-12T02:39:00

Solution 1

C#

dropdownlist.selecteditem.text

Posted 12-Jul-13 2:39am

maneavnash

Comments

sunpop 12-Jul-13 9:44am

dropdownlist.SelectedItem.Text gives me "System.NullReferenceException: Object reference not set to an instance of an object"

maneavnash 12-Jul-13 9:56am

show me your code............

sunpop 15-Jul-13 14:44pm

I've updated my question by including the code.

Zafar A khan · Answer 2 · 2013-07-12T19:35:00

Solution 2

C#

dropdownlist1.SelectedValue

Posted 12-Jul-13 19:35pm

Zafar A khan

**ThatsAlok** · Answer 3 · 2013-07-12T19:38:00

Solution 3

if you are interested in the displayed test in dropdownlist, you can try for dropdownList.SelectedText

Posted 12-Jul-13 19:38pm

ThatsAlok

Updated 15-Jul-13 8:42am

v2

Sagar Tajpara · Answer 4 · 2013-07-12T22:41:00

Solution 5

C#

string Svalu = dropdownlist1.SelectedItem.Tostring();

Posted 12-Jul-13 22:41pm

Sagar Tajpara

Updated 15-Jul-13 8:42am

v2

Dholakiya Ankit · Answer 5 · 2013-07-12T23:12:00

Solution 6

dropdownlist1.selectedvalue if you want value
dropdownlist1.selectedtext if you want selected text

Posted 12-Jul-13 23:12pm

Dholakiya Ankit

Updated 15-Jul-13 8:42am

v2