But what about the Text Templating requirements?
This are validations that apply only to a specific generation task. Let's say if have a property named DotNetType. It could be that this property does not affect generation of [t1] but I need this property for [t2]. For this cases, you will need to somehow validate in the (tt) Template itself.
Note: You could argue (please don't) that the example below is a bad example, I know but there are still some other real cases.
The 'correct' way
- This page actually shows what's the correct technique
How to: Generate Errors and Warnings from Text Templates
I must say that before finding out that I've tried this 2 other options:
- Raise an exception (hard but work since it's integrated with the Error list as shown below):
- Just add a comment to the output file (this is not always possible ( example : asp.net template based controls like GridView don't support XML comment inside their tpl tags..)