clsInfoItemBase

clsInfoItemBase is a public base class in SAIF.Business.ContactInfo that stores active/primary flags, effective-dated lifecycle values, and note text for contact-related business objects.

Purpose

• Supplies shared IsActive and IsPrimary flags for contact-related value objects.
• Stores effective date, expiration date, and note text through smart wrappers.
• Exposes null-check and null-set helpers for each lifecycle field.
• Provides IDateRange begin/end-date behavior for derived classes.

Context

• Namespace: SAIF.Business.ContactInfo
• Assembly/package: SAIF.Business

Public members

Member	Signature	Purpose
IsActive	Public Property IsActive As Boolean	Gets or sets whether the item is active.
IsPrimary	Public Property IsPrimary As Boolean	Gets or sets whether the item is the primary entry.
EffectiveDate	Public Property EffectiveDate As Date Implements Framework.IDateRange.BeginDate	Gets or sets the effective date.
ExpirationDate	Public Property ExpirationDate As Date Implements Framework.IDateRange.EndDate	Gets or sets the expiration date.
NoteText	Public Property NoteText As String	Gets or sets the note text.
IsEffectiveDateNull	Public Function IsEffectiveDateNull() As Boolean Implements Framework.IDateRange.IsBeginDateNull	Returns whether the effective date is stored as empty.
IsExpirationDateNull	Public Function IsExpirationDateNull() As Boolean Implements Framework.IDateRange.IsEndDateNull	Returns whether the expiration date is stored as empty.
IsNoteTextNull	Public Function IsNoteTextNull() As Boolean	Returns whether the note text is stored as empty.
SetEffectiveDateNull	Public Sub SetEffectiveDateNull()	Clears the effective date and marks the object dirty.
SetExpirationDateNull	Public Sub SetExpirationDateNull()	Clears the expiration date and marks the object dirty.
SetNoteTextNull	Public Sub SetNoteTextNull()	Clears the note text and marks the object dirty.

Behavioral notes

• IsActive and IsPrimary both default to True through their backing fields.
• Property setters call MarkDirty() only when the underlying smart value or Boolean flag actually changes.
• The null-set helpers call SetEmpty() on the underlying smart wrappers and then mark the object dirty.

Constraints and usage notes

• Empty-state semantics come from clsSmartDate and clsSmartString, so callers should use the provided Is...Null and Set...Null helpers when they need to preserve that distinction.
• The source file does not add any public constructor overloads or validation rules; derived types are responsible for their own additional behavior.

Sources

• Business\SAIF.Business\ContactInfo\clsInfoItemBase.vb