N errorCode = FromText(message as C)
The error message.
Returns the corresponding code for the message. If the message does not match any existing error codes, 201 will be returned.
Set the error value from the supplied message.
The Text property of the SQL::CallResult object is used to communicate detailed information about any error that occurs when working with a SQL::Connection (or other object in the SQL namespace). The Text property for the SQL::CallResult object cannot be set directly. Any attempt to directly assign a value will result in an error:
dim cr as SQL::CallResult cr.Text = "An Error Has Occurred" ERROR: Cannot assign:Left-side value can't be constant cr.Text subproperty cannot be assigned to
The value of Text can be set by calling the FromText() method. For example, the Xbasic below is the open method for an Xbasic class that implements a custom AlphaDAO connection:
function open as L (_cn as SQL::Connection) if connectionString = "" then _cn.CallResult.FromText("No audited Connection specified") open = .f. exit function end if open = cn.open(connectionString) if open = .f. then _cn.CallResult.FromText("Could not open connection to database: " + cn.CallResult.text) exit function end if end function
Observe that the FromText() method is used to set error information in the SQL::CallResult object for the _cn parameter passed into the function.
If the error message corresponds to one of the built-in Alpha Anywhere SQL error codes, the FromText() method will return the error code. Otherwise, it returns "201", indicating that the error message does not match any known Alpha Anywhere SQL error code.
The SQL::CallResult Code property is a number that is assigned an Alpha Anywhere SQL error code. The number corresponds to one of a set of pre-defined error messages in Alpha Anywhere. You cannot modify the set of error codes to include your own. For a list of error messages and and their corresponding codes, run the following Xbasic in the interactive window:
dim lst as c = "" for i = 1 to 1000 delete cr dim cr as sql::CallResult cr.code = i if cr.text <> "Unexpected error" lst = lst + cr.code + "="+ cr.Text + crlf() end if next showvar(lst)