Combobox test if selected item is null or undefined

[Gopre400Participant]

Hi I am using the combobox widget and was wondering if there is a way to test if “$(‘#cmbVehicleNbr’).jqxComboBox(‘getSelectedItem’)” is null or undefined? To get the value of the combobox I was using $(‘#cmbVehicleNbr’).val() however if the user types or deletes characters in the combobox that value will used instead of the selected item. To remedy this I tried using getselecteditem however if I type or delete charachters I get this error “Error: Unable to get value of the property ‘value’: object is null or undefined” with this code:

var item = $(‘#cmbVehicleNbr’).jqxComboBox(‘getSelectedItem’);
alert(item.value);

Is there a way to test if selected item is null or undefined? Or a better way to ensure something has been selected?

Thanks
John

[DimitarParticipant]

Hello John,

Please try the following approach:

$("#getSelectedItem").click(function () {
    var item = $("#cmbVehicleNbr").jqxComboBox('getSelectedItem');
    if (item) {
        alert(item.value);
    } else {
        alert("No item has been selected.");
    };
});

Best Regards,
Dimitar

jQWidgets team
http://www.jqwidgets.com/

[Author]

Posts