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SQL Anywhere 10.0.1 » UltraLite - AppForge Programming » Understanding UltraLite Development with AppForge

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Handling errors


In normal operation, UltraLite for AppForge can throw errors. Errors are expressed as SQLCODE values, negative numbers indicating the particular kind of error.

For a list of error codes thrown by UltraLite for AppForge, see ULSQLCode enumeration.

You can use the standard MobileVB or Crossfire error-handling features to handle errors. When an UltraLite object is the source of an error, the Err object is assigned a ULSQLCode number. ULSQLCodes are negative numbers indicating the particular kind of error. The ULSQLCode enumeration provides a set of descriptive constants associated with these values.

See ULSQLCode enumeration.

To make use of type completion in the MobileVB environment, you may want to create an error handling function such as the following:

'MobileVB using VB6
Public Function GetError() As ULSQLCode
    GetError = Err.Number
End Function

You can then easily access UltraLite errors using the GetError function.