Populate combobox from DirectEvent (without using store)

[okutlubay]

Hi,

I was playing with version 1.0. First of all congratulations. Absolutely great work!

i was expecting that populating a combobox from a directmethod (ajax) without using a store would be possible in this new version. I guess new methods like addItem, insertItem are for that use. But how can we delete all items first? I am trying to implement something like:

Combobox1.Items.Clear(); // Probably this is not the method I need  // items is some List<string> foreach (string item in items) Combobox1.AddItem(item, item);

[Vladimir]

Hi,

At this moment you can use the following code

ComboBox1.AddScript("{0}.store.removeAll();", ComboBox1.ClientID);

Don't confuse with 'store' word in the js code, even if you don't use a store the toolkit automatically creates client side store

[okutlubay]

Hi Vladimir,

Thanks for quick response. Unfortunately it didn't work. Everything goes on as if I didn't put that line. No Javascript error though.


Onur

[geoffrey.mcgill]

okutlubay (6/24/2010) Hi Vladimir,

Thanks for quick response. Unfortunately it didn't work. Everything goes on as if I didn't put that line. No Javascript error though.


Onur

I just tested the .AddScript option presented by Vladimir and it appears to work as expected for me. All items in the ComboBox/Store were removed.

[okutlubay]

You are putting this in a DirectMethod, right?

I am trying to make it work inside an Ajax callback method.


Onur.

[geoffrey.mcgill]

Hi Onur,

It would be best if you could post a code sample. Tough to say where the issue is without seeing some code.

[okutlubay]

OK! You are right. It works.
I figured it our and was my bad. Sorry about it. Thanks y'all.



By the way Vladimir told that 'at this point you can use....';
should we expect a different (more c#'ish) solution to this?


Onur.

[Vladimir]

Hi,

Yes, I think we will add RemoveAll method to the combo which will generate that script

[okutlubay]

I see.


But will it be using some other logic or just do the same thing using something like an extension...


public static void ClearItems(this ComboBox control)
{
control.AddScript("{0}.store.removeAll();", control.ClientID);
}

[geoffrey.mcgill]

Hi,

We're discussing a few potential revisions to the ComboBox + Store API. No decisions yet, but your Extension Method should work perfectly.