InfoPath Dev

Hello everyone, I have a problem with filling up a Drop Down List Box. My Goal is this: I want to use code to fill up a Drop Down List Box because I want to use a Data Connection I've just created and there has to be some logic. To use code for this task I planned to Bind the Drop Down List Box to a repeating field. I have created a Group (called "AllMembers") and in that group is a repeating field called "SingleMember" which is Binded/Bound (?) to the Drop Down List (sorry for my English). I now tried to fill up the Field this way: Uploaded with ImageShack.us Unfortunately I get a nullreference Exception. Do you have any Idea what is wrong here? Maybe complete stupid way to do what I need? :-) Thanks!! I used this manual: http://www.bizsupportonline.net/infopath2007/programmatically-fill-populate-drop-down-list-box-infopath-2007.htm I am using InfoPath 2010. Regards Christian

My guess would be that the null reference exception is occurring when you set the value of "value" and "display", because SelectSingleNode is failing to select a node. I see that SingleMember is using the "my" namespace - are "value" and "display" children of SingleMember? If they are fields, they'd probably also be using the "my" namespace:

newMember.SelectSingleNode("my:value", NamespaceManager).SetValue("test");

For example (don't forget, you'll need a NamespaceManager for SelectSingleNode, since the XPath has a namespace).