Is there anyway to get NumericSpinner value in realtime as selection is made on it? Like adding an ActionListener like event?
I would suggest avoiding that class as it has been deprecated for a while now.
You can use addActionListener on the Spinner instance.
Related
I have created an instance of ButtonGroup and associated that to two RadioButtons. The RadioButtons are added to a Container and the Container added to a Form screen. When the "Back" button is pressed, I want to clear the ButtonGroup selection and reset certain variable instances.
I want to place the code in the ActionListener I have made for the "Back" function. My question is how to retrieve the reference of the ButtonGroup in order to clearSelection()?
Generally we recommend recreating the Form instead of caching it if you intend to "reset it" so I'd avoid this.
If you still want to go in this direction check out getButtonGroup() in RadioButton. You can also set a new group with the setter method.
You can use setUnselectAllowed(true) then invoke setSelected(false) on both buttons. Then restore default selection behavior using setUnselectAllowed(false).
While looking at animateLayout() method of ComponentSelector for another issue that I had, I realized that I may use this Class to obtain Component object references jQuery style elegantly. Very powerful and useful concept for codename one.
should adding or removing components trigger a repaint?
All.
I found an old post on Sencha forum, mentioning store.loadData as the way to set new info into an array store.
This seems to work for a combobox but not for an itemselector as you can see in this fiddle:
https://fiddle.sencha.com/#view/editor&fiddle/2hu9
What's the right way to do it for an itemselector?
Thanks in advance
This seems to be a bug in itemselector, because the user that created itemselector did not anticipate that data can be brought into a store through other means than a pure load. Only a pure load fires the load event on the store, which itemselector listens to.
If you add the line store.fireEvent('load', store, store.getRange()); to the handler to fire the load event manually after loadData, itemselector starts working. There may be better ways to do this, for instance having itemselector listen to datachanged event instead of load event, but this is a quick workaround.
I am developing application using ExtJS 4.1. I have one spinner field and I want to change value of that method programatically. I have set up listeners like change, spinup and spindown for this same spinner field.
Now I would like to know how to prevent listener method of these events getting fired only when I change the value of spinner field through my program?
For example,
var mySpinner = Ext.ComponentQuery.query('#foopanel > #mySpinner')[0];
mySpinner.setValue(2000);
When mySpinner.setValue(2000); line is executed, change event of mySpinner gets fired and as I have listener method for this change event, that listener method is executed.
Is it possible to prevent invocation of change event listener method?
Thanks..
You could suspend all events by calling
mySpinner.suspendEvents();
mySpinner.setValue(2000);
mySpinner.resumeEvents();
That would be the cleanest an easiest way IMO
And that's also a usecase why this methods exist
ExtJS 4.1.
Is there something like Ext.button.click(); method on Ext.button class?
Is it possible to programmically "click" a button with one method?
Or if you have an MVC structure you can fire the click event of the button, and if you're listening to the event in your controller and have an associated function it will get called.
button.fireEvent('click', button);
The last answer on this forum might give you more insight on how you can do that
here they are-
1)Create the event code in a function and call the function from both sides: btn.on("clic", ...) and from the code you want to simulate the click.
2)Use: btnView.btnEl.dom.click();
from -
http://www.sencha.com/forum/showthread.php?37772-Solved-Programmatically-click-an-Ext.Button
ExtJS 4.2.1
Ext.get('component-id-of-extjs-button').el.dom.click();
Ext.get('toggle-button2').el.dom.click();
works for me.
In case of buttons using handler, you can directly call the function of button.
Considering button is an Ext JS component, you can use:
button.handler(button);
or if you want to reach a function of event 'click':
button.listeners.click(button);
That would also work to call different button events.
Since I needed it for many buttons, it was easier to implement an override on the button class, which adds a click function:
Ext.define('Ext.override.Button',{
override:'Ext.button.Button',
click:function() {
this.getEl().dom.click();
}
})
After this override has been added to the code base, the following works like a charm:
Ext.getCmp("MyButton").click()
Unlike fireEvent or fireHandler, this will work with all kinds of buttons - no matter whether they have a click event or a handler, or whether they are toggle buttons where the clicked button has to be marked as pressed also.
If you need to execute the "handler" of the button, just run this (tested with ExtJS 4.2)
button.fireHandler()
If you want to do this in your test scripts, take a look at my Ext.ux.Test library. If you need it for something other, I would suggest reconsidering your approach.
None of the other answers worked for me, but i found something simplier i think :
var button=Ext.get('the_id_div');
button.dom.click();
document.getElementById("someButtonId").click();
In my application I call App.Current.MainWindow.Show()/App.Current.MainWindow.Hide() to show/hide my application but I don't know how to catch the event when the form is hidden/showed. Please help if you know how to!
One of your tags is WPF and the other is WinForms... I'm better with WinForms, so I'll answer for that tag.
The Form.Shown event documentation is here with sample code...
There is no corresponding Form.Hidden event. The best you can do is choose from Form.Closing or Form.Closed or one of the other events.
Added from my comment above
Question - if you're CALLING the Hide and Show in your code, why do you need to capture the events? You already KNOW when it's happening. If you want to run some code inside the form after hiding and closing it, expose the code as a public function, and call the function after showing and hiding the form...