Forums Ultimate UI for ASP.NET Web Forms
Your Privacy Matters: We use our own and third-party cookies to improve your experience on our website. By continuing to use the website we understand that you accept their use. Cookie Policy
Close
Jeff
380
WebDropDown doesn't drop down
posted

Hi, I have the following WebDropDown on my page:

 

<ig:WebDropDown ID="ddlParticipant" runat="server" Width="125px"
                         EnablePaging="True" EnableMultipleSelection="True" PageSize="20"
                            DropDownContainerWidth="300px" DropDownContainerHeight="550px"
                         EnableClosingDropDownOnSelect="False"
                         onselectionchanged="ddlParticipant_SelectionChanged "
                         onprerender="ddlParticipant_PreRender">                   
                    <DropDownItemBinding TextField="ParticipantID" ValueField="ParticipantID"></DropDownItemBinding>
                    <ClientEvents />
                    <ItemTemplate>           
                        <%#DataBinder.Eval(Container.DataItem, "ParticipantID").ToString() + " - " + DataBinder.Eval(Container.DataItem, "Name").ToString() %>
                    </ItemTemplate >
                    <AjaxIndicator AltText="Async post" ImageUrl="~/images/ajax-loader.gif" />
                    <Button ImageUrl="/ig_res/Default/images/igsch_xpblueup.gif" /> 
                    <AutoPostBackFlags SelectionChanged="Async" />                 
                    </ig:WebDropDown>       

The problem I am having is that sometimes (randomly) the drop down will not drop down.  I click on the drop down button and nothing happens.  How do I fix this?  Any help would be appreciated.  I'm using Infragistics 9.2 Version 2014 and IE 7.

Thanks,

Jeff

  • 24671
    posted

    Hi,

    What code do you have in the PrePrender event handler? Also is your control in some kind of container ? 

    I would suggest a couple of things:

    1) you may try changing AutoPostBackFlags to "On" for SelectionChanged, and try placing the control in an updatePanel, to avoid the full postback, this could help.

    2) you may try playing with the EnableDropDownAsChild property setting it to either true or false - it plays a role depending on what kind of container you have placed the control.

    Hope it helps. Please let me know if it works. I would also suggest to have the latest service release installed if the above doesn't help, just in case. 

    Thank you,

    Angel