Vault Application Framework applications can be easily debugged from within Visual Studio.
Exceptions can be thrown from within Vault Application Framework applications to replicate the functionality of
Err.Raise in VBScript. Exceptions are typically shown to the user as a message box, and the current vault transaction rolled back.
When executing a .NET application (e.g. a console application), the .NET framework will automatically locate the configuration file (e.g.
app.config) and provide easy access to the contents. An issue that developers often encounter, especially when attempting to reference a web service from within a Vault Application Framework application is that the configuration file data will not automatically be loaded and so these values are not available. Information on approaches to work around this are available on the dedicated Configuration Files page.
Vault application code thread culture
Vault applications have their culture set automatically to the M-Files Client culture. This happens automatically and may affect the way that code within vault applications formats numbers, dates, and the like.
This can be changed using various approaches. More details are available on the dedicated support article: Culture behavior in VAF app code.