%META:TOPICPARENT{name="ErrorMessagesE"}%
==Error Messages (E)==

[[UDAErrorMessages|A]] [[ErrorMessagesB|B]] [[ErrorMessagesC|C]] [[ErrorMessagesD|D]] [[ErrorMessagesE|E]] [[ErrorMessagesF|F]] [[ErrorMessagesG|G]] [[ErrorMessagesH|H]] [[ErrorMessagesI|I]] [[ErrorMessagesJ|J]] [[ErrorMessagesK|K]] [[ErrorMessagesL|L]] [[ErrorMessagesM|M]] [[ErrorMessagesN|N]] [[ErrorMessagesO|O]] [[ErrorMessagesP|P]] [[ErrorMessagesQ|Q]] [[ErrorMessagesR|R]] [[ErrorMessagesS|S]] [[ErrorMessagesT|T]] [[ErrorMessagesU|U]] [[ErrorMessagesV|V]] [[ErrorMessagesW|W]] [[ErrorMessagesX|X]] [[ErrorMessagesY|Y]] [[ErrorMessagesZ|Z]] [[ErrorMessagesSymbols|#]]

===Error E_UNEXPECTED (0x8000FFFF) received when filling <nop>Dataset object in .NET project===


      
 **Action**
 
Using ODBC Driver to connect to Progress database from a C# program.


**Result**

The following error occurs when trying to fill the <nop>DataSet object. Error: E_UNEXPECTED (0x8000FFFF)


**Cause**
 
When ODBC drivers are used within a Visual Studio .NET program, Microsoft has benchmarked this only via a separately installed ODBC Managed Data provider component.

The OLE-DB Providers should be used from a Visual Studio .NET program only via OLEDB Managed Data provider.


 **Resolution:**
 
Using ODBC Managed Data provider resolves the problem. You have to download this separately from Microsoft and install it as an add-on component -- ODBC .NET Data Provider -- to the .NET Frameworks. It can be downloaded here:

http://www.microsoft.com/downloads/details.aspx?FamilyId=6CCD8427-1017-4F33-A062-D165078E32B1&displaylang=en
  

It installs to Start/Programs/ODBC .NET Data Provider and includes relevant documentation.

In Visual Studio, you have to manually add the new component's reference to your Project (under Project menu, "Add Reference...") as "Microsoft.Data.Odbc.dll".|
    
===Evidence===

Creating a Windows ODBC Trace