I have tried to use a WebDropDown control on a Dynamics AX Enterprise Portal page hosted by SharePoint (inside a web part).

The WebDropDown control is used in context of a AxForm control which is bound to a AxDataSource control. The WebDropDown control is bound using

CurrentValue='<%# Bind("MyField") %>'

1) As long as the control is bound, it does not fire the OnValueChanged event. As soon as I remove the binding, the event is fired! What's the reason for this behavior?

2) Beside this, the data binding does not seem to work at all, because a selected or entered value does not reach the data source like with any other ASP.NET control I used so far. Why?

3) After removing the data binding in the OnValueChanged event handler method the property CurrentValue is always set to null (even if there is a value displayed in the control on the web page). The only way to get the changed value is by using the property DropDownValueChangedEventArgs.NewValue. Should the CurrentValue not already set to the changed value in a "OnValueChanged" event handler?

4) Is there any real documentation from Infragistics to work with it's controls in a SharePoint environment (beside the poor documentation given by the "Promegranate" example?)

5) Is there any real documentation from Infragistics to work with it's controls in a Dynamics AX Enterprise Portal environment? Is it possible to use the controls in a stable way inside such an environment at all?