CODEWITHSUNDEEP
javascriptjquerydynamic-content
Poodimizer
Poodimizer

Reputation: 621

JQuery Getting the value of dynamically generated Option in a Select

I'm trying to get the value of the option that the user selects on a dynamically generated option in a dynamically generated select. Right now I'm just trying to get an alert to pop up though and have been thoroughly unsuccesful.

I've tried using the .change binder inside of a docuement.ready but that didn't work and I figured it may be because the elements don't exist for it to bind to. Code for the .change

$(document).ready(function () {
    $(".lowerSerialSelect").change(function () {
        alert("red")
    });
});

Here's the code I'm using to dynamically generate the select:

if (_interface == "network" && _deviceName == "Not in Use")
    {
        var lowerSerialTd = document.createElement("td");
        lowerSerialTd.className = "lowerSerial";
        trTag.appendChild(lowerSerialTd);
        var lowerSerialSelect = document.createElement("select");
        lowerSerialSelect.className = "lowerSerialSelect";
        lowerSerialSelect.name = "lowerSerial" + identifier;
        lowerSerialSelect.id = _interface + "lowerSerial" + identifier;

        var lowerSerialOption = document.createElement("option");
        lowerSerialSelect.appendChild(lowerSerialOption)

        for (newDevice in newNetworkDevices)
        {
            alert(newNetworkDevices[0]);
            var lowerSerialOption = document.createElement("option");
            lowerSerialOption.innerHTML = newNetworkDevices[newDevice][0];
            lowerSerialOption.className = "networkMacOption";
            lowerSerialOption.id = _interface + "lowerSerial" + identifier;
            lowerSerialOption.value = newNetworkDevices[newDevice];
            lowerSerialSelect.appendChild(lowerSerialOption)
        }

        lowerSerialTd.appendChild(lowerSerialSelect);
        alert("Maybe");
    }

So does the .change not bind to elements that aren't created yet?

If so can I get around this by rebinding everytime I create a new select? (The user will trigger the new select so it won't all be done at once)

I've also tried the $("select".on("change", "option", function() {alert("red");}); but to no avail. Any help or explanations would be appreciated.

This is on a configuration page so the code is pretty long, 800 some lines so I didn't want to post the whole thing.

Thanks

** Edit **

The html that is dynamically generated looks like this in the end:

  <select class="lowerSerialSelect" name="lowerSerial2" id="networklowerSerial2">
        <option></option>
        <option class="networkMacOption" id="networklowerSerial2"    value="0080A39166BA,192.168.1.59,47331,1363895658.22">0080A39166BA</option>
  </select>

Upvotes: 0

Views: 1957

Answers (1)

Christian
Christian

Reputation: 19740

Yeah you're spot on, .change() is not a delegated hander. Try .on()

$('body').on('change', '.lowerSerialSelect', function() {
  // code here
});

Upvotes: 2

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