40 lines
2.1 KiB
Markdown
40 lines
2.1 KiB
Markdown
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---
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source_files:
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- DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.GraphList/View/ExportGraphMainView.xaml.cs
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- DTS Viewer/DTS.Viewer.Modules/DTS.Viewer.GraphList/View/GraphMainView.xaml.cs
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generated_at: "2026-04-17T16:11:57.316727+00:00"
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model: "zai-org/GLM-5-FP8"
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schema_version: 1
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sha256: "cfdd9801dd7a1dcf"
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---
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# View
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### Purpose
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This module provides WPF view components for graph list functionality, specifically for displaying and exporting graphs. Both views implement a pattern of suppressing the `ApplicationCommands.Undo` command by adding a `CommandBinding` that marks the command as handled. This prevents undo operations from propagating in these views.
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### Public Interface
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**ExportGraphMainView** (implements `IExportGraphMainView`)
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- `ExportGraphMainView()` - Constructor that calls `InitializeComponent()` and adds a `CommandBinding` for `ApplicationCommands.Undo`. Both the `Execute` and `CanExecute` handlers set `e.Handled = true` with no other action.
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**GraphMainView** (implements `IGraphMainView`)
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- `GraphMainView()` - Constructor that calls `InitializeComponent()` and adds a `CommandBinding` for `ApplicationCommands.Undo`. Both the `Execute` and `CanExecute` handlers set `e.Handled = true`. Contains commented-out code for focusing `TvTestChannels` and checking `root.IsChecked`.
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### Invariants
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- Both views unconditionally suppress `ApplicationCommands.Undo` by handling it without action.
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- The `CanExecute` handler does not set `e.CanExecute`, only `e.Handled`.
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### Dependencies
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**Depends on:**
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- `DTS.Common.Interface` (`IExportGraphMainView`, `IGraphMainView`)
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- `System.Windows.Input` (`CommandBinding`, `ApplicationCommands`)
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**Depended on by:** Not determinable from source alone.
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### Gotchas
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- **Undo suppression pattern:** Both views suppress undo without any conditional logic. This may interfere with expected user behavior if undo is needed elsewhere in the application.
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- **Commented-out code in GraphMainView:** References to `root.IsChecked` and `TvTestChannels.Focus()` suggest incomplete or removed functionality.
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- **Namespace suppression:** ReSharper disable comments indicate potential namespace convention violations.
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---
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