Kevin,

This is related to this thread so:

Why is it that mmBusinessRules.CheckRules() call CheckRulesHook() BEFORE calling CheckRequiredFields()?

// Call custom business object rules hook method
this.CheckRulesHook(ds, tableName);

// Check required fields
this.CheckRequiredFields(ds, tableName, useErrorProvider);

It seems that you would want to make sure that the required fields have values before you start comparing these values to something. I find my self writing code in my CheckRulesHook() overload to make sure my fields have values before I test them for range or uniquness. Wouldn't it be better to reverse these two? Then in CheckRulesHook() I could assume that all fields marked Not Null in the database would have a value.

Max...