ContextException - populating drop down. (newbie question)

[Former Member]

I map the selectedConfiguration attribute to the component context's selectedConfiguration so that I can access the value in the subsequent views.

On the current view, the selectedConfiguration corresponds to a dropdown. This exception gets thrown on the line :

ISimpleTypeModifiable myType = wdControllerAPI.getContext().getModifiableTypeOf("selectedConfiguration");

How can I populate a drop down if the context for that drop down is mapped to the component context.

com.sap.tc.webdynpro.progmodel.context.ContextException: AttributeInfo(ItemLaunchConfigurationView.selectedConfiguration): must not modify the datatype of a mapped attribute

at com.sap.tc.webdynpro.progmodel.context.AttributeInfo.getModifiableSimpleType(AttributeInfo.java:337)

at com.sap.tc.webdynpro.progmodel.context.Context.getModifiableTypeOf(Context.java:171)

at com.sap.netweaver.bc.uwl.ui.admin.ItemLaunchConfigurationView.wdDoInit(ItemLaunchConfigurationView.java:103)

at com.sap.netweaver.bc.uwl.ui.admin.wdp.InternalItemLaunchConfigurationView.wdDoInit(InternalItemLaunchConfigurationView.java:124)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doInit(DelegatingView.java:61)

at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)

at com.sap.tc.webdynpro.progmodel.view.View.initController(View.java:388)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:645)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:515)

Thanks a lot

Manish.

[Former Member · Accepted solution]

HiManish

U r trying to Map a Attribute to the DropDown.

This Attribute u might have Mapped to Some othe Attribute to either Component Controller or Interface Controller.

In Simple u should not bind an Value Attribute to the Drop Down Wichu have Mapped, Coz u will not be able to modify it.

Bind Some unMapped Value Attribute. At run time get The Value attribute Value and store in Some other Value Attribute which u can use it for Mapping

With Wishes

Krishna Kanth

[Former Member · Accepted solution]

Hi,

I feel its better to remove the context mapping and set the value to the attribute in the component context in the action handler for the dropdown.

String s=wdContext.currentTestNodeElement().getTestElement();

wdThis.wdGetTestAppCompController().wdGetContext().currentTestNodeElement().setTestElement(s);

where the node is TestNode and the attribute is TestElement which is bound to the dropdown.

Regards

Noufal