dhtmlxcombo in ASP.NET UpdatePanel causes postback

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#1

I’m using a dhtmlxcombo inside an UpdatePanel in an ASP.NET 2.0 aspx page.



The combo renders correctly on the page using the following script, which is inside an UpdatePanel:





<asp:DropDownList AutoPostBack=“true”

ID=“BoatModel” runat=“server” Width=“341” OnSelectedIndexChanged=“BoatModel_SelectedIndexChanged”

DataSourceID=“BoatModelDataSource” DataTextField=“ModelName”

DataValueField=“ID”></asp:DropDownList>

var z=dhtmlXComboFromSelect(“ctl00_WebPageContent_BoatModel”);

z.setOptionHeight(300);

z.readonly(true);





However, when I change the selection in the drop-down, the page is updated with a flicker. It looks like the UpdatePanel / ScriptManager code does not recognize the event coming from the dhtmlxcombo as it would from the select genrated by the asp:DropDownList



If I remove the dhtmlxcombo code, the page updates correctly under AJAX, without a page-flicker.



Is there any solution to make the dhtmlxcombo update the page without a flicker?
#2


Combo is javascript object, not html select. After combo initialization the select removes.


The component has own onChange event: combo.attachEvent(“onChange”,handler);


The selected value can be got by getActualValue() method and in addition it is placed into hidden element (for form submit).