My UI is developed using ExtJS, and I have a specific set of tasks that need to be executed when the page loads:
- Initiate an ajax call to the server to fetch a HashMap.
Create a combobox within the main Panel on the page.
var combo = Ext.create('Ext.form.ComboBox', { fieldLabel: 'Choose State', id: 'mycombo', queryMode: 'local', displayField: 'name', valueField: 'id', store: [], renderTo: Ext.getBody() });Fill this combobox with the data retrieved from the HashMap.
combo.getStore().add([[i, m.get(i)]]);
It's crucial for all these JavaScript functions to run when the page loads. Can you suggest how I can achieve this?
There's also a challenge - the code for creating the combobox is nested inside the 'items' property of the main 'Panel' in ExtJS. How can I execute this creation code and store it in a JavaScript variable upon page load? Basically, I need to save the details of the combobox in a JS variable,
'var combo = Ext.create(....)`
which I can then use to populate the combobox with data from the HashMap. So, how do I trigger the code within 'items' and assign it to a variable when the page is loaded, as I intend to utilize the HashMap for populating the combobox through this variable?