Working with the ValidationRules collection

Once you have a ruleset, you can review, amend, or add to the rules within it. You can add a rule using the ValidationRules.AddRule(NameU as string) method. Note that NameU is really for use in code, since it is the Description property that is displayed in the UI. NameU that must be unique within the Rules collection of the parent ValidationRuleSet.

You can retrieve a rule by its index position in the collection, using ValidationRules.Item(index), or by its ID using ValidationRules.ItemFromID(ID). Once you have retrieved ValidationRule you can read its NameU and Description or check whether the ruleset is ignored for validation:

Public Sub EnumerateRules()
Dim doc As Visio.Document
Dim ruleSet As Visio.ValidationRuleSet
Dim rule As Visio.ValidationRule
    Set doc = Visio.ActiveDocument

    For Each ruleSet In doc.Validation.RuleSets
        If ruleSet.Enabled Then
            Debug.Print "EnumerateRules for RuleSet : " & _
    ...