TabContainer ClientState problem

I'm quite new in this AJAX stuff, so if you have any better solution, please post it.

Today I decided to use Tabs from ASP.NET AJAX Control Toolkit and found a stupid problem with them: The ClientState doesn't get updated when a post-pack is fired from drop-down list (OnIndexChanged event + AutoPostBack) or from custom control (I have server control that inherits from Button, but renders in a different way). It seems that the control toolkit framework doesn't process these post-backs as it should and the saveClientState of AjaxControlToolkit.TabContainer isn't called (basicaly it means, that all other controls that are derived from AjaxControlToolkit.ControlBase have this problem - correct me, if I'm wrong).

What I did was, that I added this function to the TabContainer class (in Tabs.js):

set_ClientState : function(value) {
 var input = this.get_clientStateField();
 if (input) {
 input.value = value;
 }
 },

and

added this line:

this.set_ClientState(this.saveClientState());

before:

 if (this._loaded) {
    this.raiseActiveTabChanged();
 }
 this.raisePropertyChanged("activeTabIndex");

in set_activeTabIndex function of AjaxControlToolkit.TabContainer.

Hope it helps someone.

I'm having the same problem. I'm trying to implement your solution, but I still get the same 'Specified argument was out of the range of valid values.Parameter name: index' error. I think it's because I'm not actually referencing the modifiedTabs.js file from my code.

I've made the correction that you specified in AJAX Control Toolkit\AjaxControlToolkit\Tabs.js and rebuilt the AjaxControlToolkit solution. I made sure that the new AjaxControlToolkit.dll is in AJAX Control Toolkit\AjaxControlToolkit\bin\Debug, AJAX Control Toolkit\SampleWebSite\Bin, AJAX Control Toolkit\AjaxControlExtender, and my web site's App_Data, which are all of the places that it existed. I'm not sure which, if any of those locations my app reads from. I tested removing all of them, but my app ran and the TabContainer/TabPanels were created, so I'm not sure it uses the dll in any of those locations.

Can you give me a pointer on how to get this done?

Hi bjs339 have you read this post?

http://forums.asp.net/t/1124541.aspx

I think the trick for you is to use the TabContainer event OnInit