AJAX :: Loading User Control Dynamically And Displaying Using Dynamicpopulatedextender?

Jan 23, 2011

Situation: I have a drop down list which I need to pass on to a webservice on button click. I am using Sys.Net.WebServiceProxy.Invoke to make webservice call.

Everything is happening inside a usercontrol which loads on runtime using dynamicpopulate extender.

I get following error:

Sys.InvalidOperationException: Cannot serialize object with cyclic reference within child properties.

Situation: Usercontrol also has a listview which is bound to dataset. However on calling listview.DataBind() in side the webservice method.

I get following error:

The ListView control 'ProductsListView' does not have a naming container. Ensure that the control is added to the page before calling DataBind.

There is no problem when call to service method is parameter less and listitem is not bound.

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[code]....

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