How to get selected value when items binded with ajax

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Hi ,

I am binding dropdownlist items from database using jquery ajax().But the problem is i'm unable to access the dropdownlist selected value in buttonClick event at code behind.

Can any one help me, how to get selected value when listitems binded with $.ajax()

please find code:

C#

.aspx apge

<script type="text/javascript">
$(document).ready(function() {
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "Default.aspx/BindDatatoDropdown",
data: "{}",
dataType: "json",
success: function(data) {
$.each(data.d, function(key, value) {
$("#ddlCountry").append($("<option></option>").val(value.CountryId).html(value.CountryName));
});
},
error: function(result) {
alert("Error");
}
});
});
</script>

What I have tried:

I tried to get value from 

protected void btnSubmit_Click(object sender, EventArgs e)
        {
string val = ddlCountry.SelectedItem.Value;// here getting empty value
}

Posted 3-Oct-16 21:16pm

Member 11570261

Updated 5-Oct-16 8:19am

v2

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3 solutions

Solution 3

use

C#

  $("#ddlcountry")
            .change(function () {

               

                var countryid= $(this).val();

}

Posted 5-Oct-16 8:19am

Member 10398773

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Karthik_Mahalingam · Accepted Answer · 2016-10-04T04:55:00

Solution 2

You shall use an Hidden Field to store the selected value in javascript and you can read the same in code behind, it should work.

Posted 4-Oct-16 4:55am

Karthik_Mahalingam

Comments

Member 11570261 7-Oct-16 4:48am

Thanking you.

Karthik_Mahalingam 7-Oct-16 7:41am

welcome

F-ES Sitecore · Accepted Answer · 2016-10-03T22:04:00

asp.net doesn't know about any changes you make to server controls via javascript so it can't see your new items. If you are manipulating the dropdown via ajax then don't use an asp:DropDownList, instead just use a normal html <select> like

HTML

<select name="ddlCountry" id="ddlCountry">
<option value="UK">United Kingdom</option>
</select>

then in your click event you read the value using

C#

string country = Request.Form["ddlCountry"];