Ext Js Get Selected ComboBox Value

Daniel — Sat, 17 Dec 2011 01:21:09 +0000

Small code snippet illustrating getting the selected value from an Ext Js ComboBox.

This example has been tested with Ext Js 4

var combo = Ext.create('Ext.form.field.ComboBox', {
  ...
  listeners: {
   'select':function(selected){ alert(selected.value); }
  }
  ...
});

Node cannot be inserted at the specified point in the hierarchy

Daniel — Mon, 12 Dec 2011 20:35:32 +0000

If you get the following error when developing with Ext JS 4:

“Node cannot be inserted at the specified point in the hierarchy”

Make sure your Panel IDs are unique.

In my case, I had 2 form panels both with the same ID that I was trying to render.