# Exception Errorhandling
**URL:** https://forum.servoy.com/t/exception-errorhandling/8390
**Category:** Classic Servoy
**Created:** [November 12, 2007, 10:03am UTC](https://forum.servoy.com/t/exception-errorhandling/8390 "2007-11-12T10:03:00Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@martinh](https://forum.servoy.com/u/martinh)
#### Post date: [November 12, 2007, 10:03am UTC](https://forum.servoy.com/t/exception-errorhandling/8390/1 "2007-11-12T10:03:00Z")
I wrote an errorhandler (which is registered as onError method in the Solution Settings). The errorhandler was written like the example in the Servoy manual:
```auto
var _e = arguments[0];
var _message = _e.getMessage();
var _errorcode = _e.getErrorCode();
var _dialogmessage
var _form = application.getMethodTriggerFormName()
var _element = application.getMethodTriggerElementName()
application.output('Errorhandler: Exception=' + _e);
application.output('Errorhandler: Form=' + _form);
application.output('Errorhandler: Element=' + _element);
if (_e.isServoyException)
{
application.output('Errorhandler: isServoyException')
application.output('Errorhandler: Errorcode=' +_errorcode)
application.output('Errorhandler: Message=' + _message)
_dialogmessage = 'Some error was detected. Please make a screenshot of this screen and send it to me.\n\n'
_dialogmessage += 'Errorcode=' + _errorcode + '\n'
_dialogmessage += 'Errormsg=' + _message + '\n'
_dialogmessage += 'Form=' + _form + '\n'
_dialogmessage += 'Element=' + _element + '\n'
// If in transaction, then rollback the transaction
if (databaseManager.hasTransaction())
{
databaseManager.rollbackTransaction()
}
plugins.dialogs.showErrorDialog( 'Error', _dialogmessage, 'OK');
}
continued ...
```
I’m getting an error that the line
```auto
var _errorcode = _e.getErrorCode();
```
is invalid, because getErrorCode() is an invalid function, but in the Servoy manual it is used in the same way (page 472 Developer Reference Guide)
Anyone knows something about writing errorhandlers?
Am I doing something wrong?
I noticed also that the errorhandler is not always being called when I expected it (like on database errors)
---
### Author:  [@IT2Be](https://forum.servoy.com/u/IT2Be)
#### Post date: [November 12, 2007, 10:22am UTC](https://forum.servoy.com/t/exception-errorhandling/8390/2 "2007-11-12T10:22:26Z")
Which Servoy version are you using?
---
### Author:  [@martinh](https://forum.servoy.com/u/martinh)
#### Post date: [November 12, 2007, 10:25am UTC](https://forum.servoy.com/t/exception-errorhandling/8390/3 "2007-11-12T10:25:43Z")
> Which Servoy version are you using?
3.5.2 with SQL Server 2005 database
---
### Author:  [@IT2Be](https://forum.servoy.com/u/IT2Be)
#### Post date: [November 12, 2007, 10:38am UTC](https://forum.servoy.com/t/exception-errorhandling/8390/4 "2007-11-12T10:38:16Z")
hmm, I wanted to be sure that you are working with the latest version.
Unfortunately I am not that familiar with error handlers in Servoy to confirm that there is an issue.
---
### Author:  [@Hans\_Nieuwenhuis](https://forum.servoy.com/u/Hans_Nieuwenhuis)
#### Post date: [November 12, 2007, 4:55pm UTC](https://forum.servoy.com/t/exception-errorhandling/8390/5 "2007-11-12T16:55:19Z")
I use the following error method with 3.5.2 and Oracle 10g.
Works fine !!
However i noticed that the solution error method is not called if you use transactions. I filed a case for this problem a while ago.
```auto
//this sample script should be attached to onError method handler in the solution settings
application.output('In error Trap');
var e = arguments[0];
application.output("Exception Object: " + e)
application.output("MSG: " + e.getMessage())
if (e.isServoyException)
{
application.output("is a ServoyException")
application.output("Errorcode: "+e.getErrorCode())
if (e.getErrorCode() == ServoyException.INVALID_INPUT)
{
application.beep()
if (globals.validate_message == '--')
{
var thePressedButton = plugins.dialogs.showErrorDialog('Invalid Value', 'Veld mag niet leeg zijn !','OK');
globals.validate_message = '--'
}
else
{
var thePressedButton = plugins.dialogs.showErrorDialog('Invalid Value', globals.validate_message,'OK');
globals.validate_message = '--'
}
}
if (e.getErrorCode() == ServoyException.SAVE_FAILED)
{
plugins.dialogs.showErrorDialog( "Error", "It seems you did not fill in a required field", 'OK');
//Get the failed records after a save
var array = databaseManager.getFailedRecords()
for( var i = 0 ; i < array.length ; i++ )
{
var record = array[i];
application.output(record.exception);
if (record.exception.isDataException)
{
application.output("SQL: "+record.exception.getSQL())
application.output("SQLState: "+record.exception.getSQLState())
application.output("VendorErrorCode: "+record.exception.getVendorErrorCode())
}
}
}
}
```
---
### Author:  [@martinh](https://forum.servoy.com/u/martinh)
#### Post date: [November 13, 2007, 8:23am UTC](https://forum.servoy.com/t/exception-errorhandling/8390/6 "2007-11-13T08:23:47Z")
> However i noticed that the solution error method is not called if you use transactions. I filed a case for this problem a while ago.
That is important info. Indeed I use transactions.
That explains why I don’t have my errormessage triggered, what I discussed in another topic
> **[Errormessages from database](https://forum.servoy.com/viewtopic.php?t=9077)**
>
> I would like to know how I can show an error that is triggered by the database. I have the following coding: \_success = forms\[\_form\].controller.saveData(); if (\_success == false) { \_errormessage = ServoyException.getMessage(); ...