How to change ASP:dropdownlist selectionindex in jquery

Question

1.00/5 (2 votes)

See more:

I want to change selectionIndex on button click in jquery
My Code is

ASP.NET

<asp:DropDownList runat="server" ID="d">

</asp:DropDownList>

What I have tried:

$(document).ready(function () {
try {

$('#<%=d.ClientID %>').on('change', function () {
try {
var ban = $('#<%=d.ClientID %>').val();
alert(ban);

}
catch (e) {

}
});
a();
}
catch (e) {
alert(e);
}

});

function a() {
try
{ $("[id*=d]").empty();
var _select = $("<select>");
_select.append($("<option value='0'>Select One</option>"));
_select.append($("<option value='1'>One</option>"));
_select.append($("<option value='2'>Two</option>"));
$("[id*=d]").append(_select.html());
$('#<%=d.ClientID %>').val('1');
$('#<%=d.ClientID %>').change();

}
catch(e)
{
alert(e);
}
}

It is not working.

If I add statically option to

<option value='0'>Select One</option>
<option value='1'>One</option>
<option value='2'>Two</option>
and modify a() function
function a() {
try
{
$('#<%=d.ClientID %>').val('1');
$('#<%=d.ClientID %>').change();

}
catch(e)
{
alert(e);
}
}
Now it is working

Posted 18-Mar-16 1:44am

Member 7909353

Updated 23-Mar-16 1:12am

v9

Add a Solution

Comments

Vikram Dalwadiya 18-Mar-16 9:37am

r u want selected value of drop-down on click button event ?

Member 7909353 21-Mar-16 2:56am

no I want to change index and get selected value on click buton event

3 solutions

Solution 1

You've not explained what the problem is or what you're trying to do so I can only guess that what you actually mean is this;

var ban = $('#<%=d.ClientID %>').val();

Posted 18-Mar-16 2:02am

F-ES Sitecore

Comments

Member 7909353 21-Mar-16 2:39am

I want to change index on button click

F-ES Sitecore 21-Mar-16 5:28am

$('#<%=d.ClientID %>').val('1');

Member 7909353 21-Mar-16 6:21am

It is working but do not call indexchange event

$(document).ready(function () {
try {
$('#<%=d.ClientID%>').on('change', function () {
try {
var StateCode = $('#<%=d.ClientID %> :selected').val();

}
catch (e) {

}
});

}
catch (e) {
alert(e);
}

});

F-ES Sitecore 21-Mar-16 6:48am

var ddl = $('#<%=d.ClientID %>');
ddl.val('1');
ddl.change();

Ram349 23-Mar-16 6:41am

Use the the below code
$("select#elem").val('0');

Solution 2

Use The Below code It's will be working
$("select#elem").val('0');

instead of select#elem u can give Your Asp Dropdown Id

Posted 23-Mar-16 0:43am

Ram349

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Member 7909353 · Accepted Answer · 2016-03-23T01:12:00

JavaScript

function a(Value)

{

                    _select.append($("<option value='0'>Select One</option>"));
                    _select.append($("<option value=" + Value+ ">" + NameText + "</option>"));
                    $("[id*=ddlStateMain]").append(_select.html());
                   
                 
                    $('#<%=ddlStateMain.ClientID %>').val(Value);
                    $('#<%=ddlStateMain.ClientID %>').change();
}