DP44/enriched-partialglm/Common/DTS.CommonCore/Interface/ExportData.md

source_files, generated_at, model, schema_version, sha256

source_files	generated_at	model	schema_version	sha256
Common/DTS.CommonCore/Interface/ExportData/IExportDataView.cs Common/DTS.CommonCore/Interface/ExportData/IExportDataViewModel.cs Common/DTS.CommonCore/Interface/ExportData/IExportHeader.cs	2026-04-16T12:19:27.871731+00:00	zai-org/GLM-5-FP8	1	ccb8183959611900

Documentation: DTS.Common.Interface.ExportData

1. Purpose

This module defines core interfaces for the data export subsystem within the DTS application. It establishes contracts for the view/viewmodel pair in an MVVM architecture and provides a data structure interface for representing export column headers with selection state. The interfaces serve as integration points between the export functionality and the broader application framework.

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2. Public Interface

IExportDataView

Namespace: DTS.Common.Interface
Inheritance: IBaseView

A marker interface for export data views. Defines no members; exists to provide type identity for views that participate in data export operations.

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IExportDataViewModel

Namespace: DTS.Common.Interface
Inheritance: IBaseViewModel

A marker interface for export data view models. Defines no members; exists to provide type identity for view models that support data export operations.

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IExportHeader

Namespace: DTS.Common.Interface.ExportData
Inheritance: INotifyPropertyChanged

Defines a selectable header item for export column configuration.

Property	Type	Access	Description
HeaderName	string	get/set	The display name of the export header/column
IsSelected	bool	get/set	Indicates whether this header/column is selected for export

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3. Invariants

• Namespace inconsistency: IExportHeader resides in DTS.Common.Interface.ExportData, while IExportDataView and IExportDataViewModel reside in DTS.Common.Interface. Consumers must reference the correct namespace for each type.
• Property change notification: Implementations of IExportHeader must raise PropertyChanged events when HeaderName or IsSelected changes, as required by INotifyPropertyChanged inheritance.
• Base contract compliance: All three interfaces inherit from framework base types (IBaseView, IBaseViewModel, INotifyPropertyChanged), implying implementations must satisfy those base contracts as well.

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4. Dependencies

This module depends on:

• DTS.Common.Base — provides IBaseView and IBaseViewModel base interfaces
• System.ComponentModel — provides INotifyPropertyChanged interface

What depends on this module:

• Cannot be determined from source alone. Consumers would typically be concrete view/viewmodel implementations and export-related services.

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5. Gotchas

• Marker interfaces with no members: IExportDataView and IExportDataViewModel define no members beyond their base interfaces. Their utility appears limited to type identification/constraint purposes. It is unclear from source alone whether this is intentional design or incomplete implementation.
• Inconsistent namespace depth: IExportHeader is placed in a more specific namespace (ExportData sub-namespace) while the view/viewmodel interfaces are not. The rationale for this inconsistency is not evident from the source.
• No validation contracts: IExportHeader.HeaderName has no nullability annotation or validation requirements defined in the interface. Implementations may handle null/empty strings differently.