Error without message when instantiating form with xml content and attributes

timhurkmans

Hello,

I have been working on a form (in FB 6.0) where I can store some values in attributes and the rest (or all) in the xml as content. I have created an object type 'MyTypeB' which is a subtype of 'MyTypeA' which is a subtype of 'dm_xfm_instance'.

When I set some values to be stored in attributes, I can instantiate forms of the type 'MyTypeA', but forms of type 'MyTypeB' fail to instantiate. I get this error in webtop:

"ERROR: Failed when creating new xform document/object. Error creating instance : No error message available. ; Additional msg - file name: <18 digits>.xml"

The log shows an exception is being thrown. The <18-digit>.xml file shows the form of 'MyTypeB', without the extra attributes from 'MyTypeA'. What step am I missing here? Something with an XML application?

timhurkmans

I found the solution myself: Apparently when you have a radiobutton, of type boolean, without a default value, stored as both an attribute and XML content, it will fail. The solution is to set a default value.