Drop down error in Online Interactive Forms

Hi,
I have used a Value Help drop down in my form so that i can get data from a datasource. However when i click on the arrow i get the followin error :
java.lang.NullPointerException
at com.sap.tc.webdynpro.clientserver.event.PDFValueHelpServiceEventHandler.handleServerEvent(PDFValueHelpServiceEventHandler.java:125)
at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleServiceEvents(WebDynproMainTask.java:501)
at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:653)
at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)
at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
Can anyone please help?
Rhanks,
Malita

Hi,
There are two options to do that, first by web service which suits best the offline scenario and another by server round trip which is possible in online scenario only.
For web service scenario you have to create data binding in the form with web service data node, (search SDN for suitable document explaining the scenario with web service for more info). Every time the user will choose value from DD the web service will trigger to fetch data based on user input.
Second scenario uses server round trip. In this method you have to call the submit method in web dynpro view with some conditions that it is called through DD to fetch values. Use some flag variable to differentiate between the final submit and DD value help submit.
There is one more option but the performance of the form will get affected based on the data used for the DDs.
In that method you have to maintain the data for each US, Europe, Asia in a table. Based on user input fetch value from that table in the specific dropdown using script on the form.
Regards,
Vaibhav

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Hello,
We have 3 regions, US, Europe and Asia Pacific and each region has a manager.
Now, am developing a Interactive form with Webdynpro for ABAP (pls. note always FORM is only one) for these regions/managers. Manager pressess submit button for approval.
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US manger should get 7 values in the drop-down list with a 'US_DROPDOWN' default, if manager donw want to keep this value, he can change/over ride and submits the form.
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Asia Pcific manger should get 11 values in the drop-down list with a 'ASIA_PACIFIC_DROPDOWN' default, if manager donw want to keep this value, he can change/over ride and submits the form.
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Hi,
There are two options to do that, first by web service which suits best the offline scenario and another by server round trip which is possible in online scenario only.
For web service scenario you have to create data binding in the form with web service data node, (search SDN for suitable document explaining the scenario with web service for more info). Every time the user will choose value from DD the web service will trigger to fetch data based on user input.
Second scenario uses server round trip. In this method you have to call the submit method in web dynpro view with some conditions that it is called through DD to fetch values. Use some flag variable to differentiate between the final submit and DD value help submit.
There is one more option but the performance of the form will get affected based on the data used for the DDs.
In that method you have to maintain the data for each US, Europe, Asia in a table. Based on user input fetch value from that table in the specific dropdown using script on the form.
Regards,
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Hello -
I'm pretty new to Acrobat and not fluent with JS (I'm a chemist), so please forgive me if this seems a silly question:
I'd like to create a form wherein there are two drop down boxes and the choices seen in the second of the two are dependent upon the choice made in the first. An example of such might be a list of departments in the first field and a list of staff in the selected depertment in the second field.
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Are you using LiveCycle Designer or Acrobat to create the form? This forum is for forms created with Acrobat, and dropdowns in Acrobat do not behave the way you want.

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I tried the ISR way, even then i couldnt get much success.
I even tried using the dynamic properties.
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hi,
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HI:
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DATA:
lr_node_info type ref to if_wd_context_node_info,
lt_value_set TYPE wdy_key_value_table,
value_set_item TYPE wdy_key_value.
types: BEGIN OF TY_UOM,
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data j type i.
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ENDSELECT.
lr_node_info->set_attribute_value_set( NAME = 'UNIT'
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Hi Thomson,
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[Note 1035630 - ISR WebDynpro ABAP UI: Input helps from ABAP Dictionary|https://service.sap.com/sap/support/notes/1035630]
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On Wed, Oct 29, 2014 at 3:01 PM, Friend of the Library <

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