Hi,

Thanks very much for the feedback and the sample. This seems to be a bug in the WebDropDown control. I have submitted an issue for this, and it will probably be fixed for the following hotfix. 

In the meantime, if it is urgent for you to get this scenario working, you can have a workaround by setting the OnClientClick property of the ImageButton to point to some javascript function which adds a DropDown item or does something else, on the client side. This will automatically perform an ajax request and invoke the ItemAdded DropDown event on the server, where you can write your logic, that you would normally do in the ImageButton's onClick event handler.

 <asp:ImageButton ID="pagebutton" runat="server"  OnClientClick="addItem(); return false;" ImageUrl="~/images/add.png" ImageAlign="Middle" OnClick="pagebutton_Click"/>Add New

   function addItem()

    {

        var dropDown = $find("WebDropDown1");

        var item = dropDown.get_items().createItem();

         item.set_text('some initial text'); // this is needed as well 

        dropDown.get_items().add(item);

    }

Thanks,

Angel 

I added a small test website to my original post that has the problem I am seeing where databinding interferes with the imagebutton onclick call.

Here is the aspx:

/>

<ig:WebDropDown ID="WebDropDown1" runat="server"

DropDownContainerHeight="200px"

Width="200px" MultipleSelectionType="Checkbox" DropDownAnimationType="Linear"

DropDownContainerMaxHeight="0px" DropDownContainerWidth="0px"

EnableDropDownAsChild="True" PageSize="0" ValueField="CMEItemId"

TextField="LongName"

DataSourceID="ObjectDataSource1" >

<DropDownItemBinding TextField="LongName" ValueField="CMEListId" />

<FooterTemplate>

<asp:ImageButton ID="pagebutton" runat="server" ImageUrl="~/images/add.png" ImageAlign="Middle" OnClick="pagebutton_Click"/>Add New

</FooterTemplate>

</ig:WebDropDown>

Here is the code behind:

Protected Sub pagebutton_Click(ByVal sender As Object, ByVal e As ImageClickEventArgs)

Debug.WriteLine(

"pagebutton_Click")

WebDropDown1.Items.Add(

New Infragistics.Web.UI.ListControls.DropDownItem("new item"))

End Sub

The objectdatasource returns a strongly typed datatable.  A post back does occur (I have a debug.writeline in the page_prerender which writes to the output) but the debug.writeline in the pagebutton_Click never gets written out nor does my breakpoint ever get hit.  If I remove the databinding it works.

Hi,

I cannot tell for sure whether this is a bug or not- in my test sample i also tried binding to SqlDataSource and the event seems to be fired correctly . Could you attach more detailed code (ASPX and code behind) - and i can verify this behavior.

Thanks,

Angel 

Any thoughts on this??  Is it a bug or am I doing something wrong?  Databinding (either manually by setting the datasource in code or by binding directly to an objectdatasource) seems to change how the control reacts.