Many times, we want a certain set of validation to fire for some user and certain set of validation to fire for some other user. In this section, we will see how we can achieve the same using Microsoft enterprise validation blocks.
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- Exception application block: This application talks about how we can use exception application blocks to log exception from project.
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- UIP block: This article talks about Reusable Navigation and workflow for both Windows and Web using Microsoft UIP blocks.
There are times when you want validation according to the logged in user or customer. For instance, in the below figure, you can see we want different validations for both users. For one user, we want that the customer code should be minimum 2 characters while for the other user, we want it to be 5 characters.
Figure: Logged in user
Enterprise library helps us to solve this problem like a charm. To understand this article, you need to once read the basics of how to implement validation using VAB (validation application blocks). In case you are not aware of the basics, you can read the same from my previous article here.
To fire validation according to logged in user is a two step process.
First you need to define two different rule sets according to customer. For instance, in the below figure, you can see that we have defined two validations. The first validation checks if the customer code is minimum two length while the second validation checks if the customer code is five length.
In step 2, we just need to call the validation according to the user logged in using the “
static class. The
validate function of the
validation static class has two parameters, one is the customer object and the other is the rule name. So depending on logged in customer, you can fire the rules on the fly.
- Updated with links of Other Application Blocks