set the value of a drop down list when selecting value from other drop down list

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I have two drop down lists

HTML

<select id="dropdown1">
 <option value="1">Item1</option>
 <option value="2">Item2</option>
 <option value="3">Item3</option>
<option value="4">Item4</option>
<option value="5">Item5</option>
</select>

<select id="dropdown2">
 <option value="6">Item1</option>
 <option value="7">Item2</option>
 <option value="8">Item3</option>

</select>

When I select 1 in the first drop down second drop down should show 6.
And if I select 2, 7 should show in second and 8 for all the others. I want this to be done in JQUERY. Can you please help me.
Thanks in advance.

Posted 20-Apr-15 3:52am

Baiju christadima

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ZurdoDev 20-Apr-15 10:14am

Just google how onchange jquery dropdown and you should get it.

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Kunal Kishan · Answer 1 · 2015-04-20T07:03:00

This is pretty easy : Just Listen on the change event on SELECT and then change the value of other drop down as below.

C#

$(document).ready(function(){

    $("#dropdown1").on("change",function(){

      var other= $("#dropdown2");

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

        switch (value) {
            case "1":  other.val("6"); console.log('hi1',other); break;
            case "2" : other.val("7");break;
            case "3" : break;
            case "4" : break;
            default : console.log('hi');;
        }

Peter Leow · Answer 2 · 2015-04-20T15:44:00

Solution 4

Since they are based on same selected indices, try this demo[^].

Posted 20-Apr-15 15:44pm

Peter Leow

R Hemanth · Answer 3 · 2015-04-20T08:51:00

Enum dropdown1
{
One,
Two
};
Enum dropdown2
{four,five};

Design two listboxes
Listbox1 and listbox2
In the listbox_leave event(object obj,Eventargs e)
{
If(listbox1.SelectedItems==dropdown1.one.Tostring())
{
Listbox2.items.add(dropdown2.four.ToString());
//similarly add how many elements u want
}
Else
{listbox2.items.add(dropdown2.five.ToString());
Dropdown2.show();
}

set the value of a drop down list when selecting value from other drop down list

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