Using the Differents Error Modes

The FileHelpers library has support for 3 kinds of error handling.

In the standard mode you can catch the exceptions when something fail.

try { records = engine.Read... } catch(Exception ex) { Console.WriteLine(ex.ToString()); }

This approach not is bad but you lose some info about the current record and you can't use the records array because is not asigned.

A more intelligent way is usign the ErrorMode.SaveAndContinue of the ErrorManager:

engine.ErrorManager.ErrorMode = ErrorMode.SaveAndContinue; records = engine.ReadFile(... if (engine.ErrorManager.HasErrors) foreach (ErrorInfo err in engine.ErrorManager.Errors) { Console.WriteLine(err.LineNumber); Console.WriteLine(err.RecordString); Console.WriteLine(err.ExceptionInfo.ToString());` }

Using the engine like this you have the good records in the records array and in the ErrorManager you have te records with errors and can do wherever you want.

Another option is to ignore the errors and continue how is showed in this example

engine.ErrorManager.ErrorMode = ErrorMode.IgnoreAndContinue; records = engine.ReadFile(...

In the records array you only have the good records.

Saving and Loading Errors

One intersting feature is the method in the ErrorManager to save the errors to a file files, you can do this

engine.ErrorManager.ErrorMode = ErrorMode.SaveAndContinue; records = engine.ReadFile(... if (engine.ErrorManager.HasErrors) engine.ErrorManager.SaveErrors("errors.txt");

To load a file with errors you can use the static method

ErrorInfo[] errores = ErrorManager.LoadErrors("errors.txt");

See also

Must Read - Quick Start Guide - Attributes List - F.A.Q. - Examples of Use - Contacts & Credits - Donations

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