Why OnClientSelectedIndexChanged fires when control loose focus?

[tomekm]

I have several related comboboxes that i populate through javascript. The purpose is to have them all populated and that each has selected value.

1.<telerik:RadComboBox ID="FirstComboBox" EnableLoadOnDemand="false" runat="server"

AllowCustomText="true" MarkFirstMatch="true"

OnClientSelectedIndexChanged="FirstComboSelectedIndexChanged" >

<WebServiceSettings Method="GetFirstItems" Path="ComboboxService.svc" /> </telerik:RadComboBox>

2. 

3.<telerik:RadComboBox ID="SecondComboBox" EnableLoadOnDemand="false" runat="server"

AllowCustomText="true" MarkFirstMatch="true"

OnClientSelectedIndexChanged="SecondComboSelectedIndexChanged" />

<WebServiceSettings Method="GetSecondItems" Path="ComboboxService.svc" /> </telerik:RadComboBox>

4. 

5.<telerik:RadComboBox ID="ThirdComboBox" EnableLoadOnDemand="false" runat="server"

AllowCustomText="true" MarkFirstMatch="true"

OnClientSelectedIndexChanged="ThirdComboSelectedIndexChanged" />

<WebServiceSettings Method="GetSecondItems" Path="ComboboxService.svc" /> </telerik:RadComboBox>

Here is script to populate data and select selected item.

all works great and all combo boxes have proper items and proper value and text. 

01.function pageLoad() {

02.firstComboBox.requestItems(some argument);

03.firstComboBox.set_value(some webService result);                

04.secondComboBox.requestItems(some argument);

05.secondComboBox.set_value(some webService result);          

06.and so on...           

07.                  

08.              

09.  

10.}

The problem is when I focus on a combobox and press TAB key and a combo loose focus. The OnClientSelectedIndexChanged event fires

even though selection did not changed! Why that happens?

I suspect that ComboBox.set_value() function does not set selected index and after loosing focus controls thinks

it has changed but how to fix it?




[tomekm]

I found solution

It should be :

var item = comboBox.findItemByValue(some webService result);

item.select();

instead of set_value()