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  • 4.7 - LatestError

    4.7 - LatestError



    This property returns a Windows Error Code (numerical) of the last read/write access of the persistent variable. The Windows Error Text can be found in LatestDescription.


    A list of all possible error codes and their meaning can be found in the MSDN (Microsoft Developer Network):


    This property is read only.


    As persistent variables are stored into a database there is a possibility of runtime errors. To check for any such runtime errors during read or write access of a peristent variable you can check this property for not equal zero.


    If you have installed the Persistent Variable extension as recommended the chances for runtime errors are very low. Therefore it shouldn't be necessary to add error handling.


    If you have installed the extension lets say into a database server on another machine it is highly recommended to add proper error handling.


    Dim MyVariable
    Set MyVariable   = new PersistentVariable
    MyVariable.Name  = "Welcome"
    MyVariable.Value = "Welcome Default.wav"
    if MyVariable.LatestError <> 0 then
        ' add your error handling here
        ' error code in LatestError
        ' error descr in LatestDescription
    end if


    The above example gives a template for own error handling.



    Tom Wellige


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