Classification: Public
1. Have a MSI property set up that is empty If the custom action has an error
populate the MSI property Display the error via a custom error dialog if the
property is not empty?
2. Display the custom action error message in the Custom Action itself (as long
as the MSI is not running silently)
i.e.:
[CustomAction]
Public static ActionResult BackupMyDatabase(Session session) {
Try
{
If (session == null}
{
Throw new ArgumentNullException("session");
}
// code to backup db
}
catch (Exception ex)
{
if (session != null)
{
session.Log("BackupMyDatabase failed: ");
if (ex != null)
{
session.Log("Exception:");
session.Log(ex.Message);
}
session.Message(
InstallMessage.User + (int)MessageBoxIcon.Error
+ (int)MessageBoxButtons.OK,
new Record { FormatString = "Setup could not back up the
database: \nException: " + ex.Message });
}
return ActionResult.Failure;
}
if (session != null)
{
Session.Log("BackupMyDatabase succeeded...");
}
return ActionResult.Success;
}
-----Original Message-----
From: Soren Dreijer [mailto:dreijer+l...@echobit.net]
Sent: May-09-14 2:48 PM
To: General discussion for Windows Installer XML toolset.
Subject: [WiX-users] Displaying custom error messages if deferred CA fails
Hi all,
I've Googled and searched the WiX mailing list, but I haven't been able to
figure this one out yet.
One of the biggest problems I've always had with MSIs is that they rarely
return useful error messages. I'm using a custom bootstrapper and I'd like to
display a custom error message if one of my deferred CA's fail.
Since deferred CA's are pretty limited, I don't know how to pass an error value
or message back to the installer from the CA that I can then use to display the
proper error UI.
What's the suggested approach? (I hope there's something better than setting a
registry value.)
Cheers,
Soren
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This message has been marked as Public by Steven Ogilvie on May-09-14 3:27:03
PM.
The above classification labels were added to the message by TITUS Message
Classification.
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