MFC Grid Controls: GridCtrl And Modern Alternatives

Building tabular data displays in MFC requires significant effort since the framework lacks a native grid control. Developers historically filled this gap with third-party solutions, but the landscape has shifted considerably.

GridCtrl: The Legacy Choice

The GridCtrl implementation from CodeProject was the de facto standard for years. If you’re maintaining MFC applications in 2026, you’ll likely encounter it. While functional, it brings real friction to modern development environments.

Getting GridCtrl working on current systems requires addressing several compatibility layers.

Integration Basics

// Create grid with 100 rows and 50 columns
m_grid.CreateGrid(parent_hwnd, 100, 50);
m_grid.SetColumnWidth(0, 100);
m_grid.SetCellText(0, 0, _T("Header"));

// Handle DPI scaling for modern displays
UINT dpi = GetDpiForWindow(m_hWnd);
m_grid.SetRowHeight(0, MulDiv(20, dpi, 96));

// Set proper Unicode handling
m_grid.SetFont(&m_gridFont);

Critical Compatibility Issues on Windows 10/11

DPI scaling breakage — GridCtrl predates high-DPI support. Set your application manifest to <dpiAware>true</dpiAware> and manually scale all grid dimensions using GetDpiForWindow(). Test at 125%, 150%, and 200% scaling factors to catch rendering issues.

Unicode problems — Define UNICODE and _UNICODE in project settings. Verify cell text with multi-byte characters doesn’t corrupt. CJK, Arabic, and Cyrillic text especially need validation.

Performance wall — GridCtrl hits severe performance degradation above 5,000–10,000 rows. Virtual scrolling isn’t properly implemented. For larger datasets, you’re better off using owner-drawn ListView or moving away from MFC entirely.

Theme rejection — Doesn’t respond to Windows 10/11 dark mode or modern accent colors. Users get dated, incongruous UI. No support for modern OS color schemes.

Memory overhead — Maintains a cell object for every grid position, consuming significant RAM even for sparse grids. A 10,000×100 grid wastes memory unnecessarily.

Finding and Building GridCtrl

Original CodeProject sources may be archived or deleted. Check these alternatives:

GitHub forks with maintenance (search “GridCtrl MFC” — various community versions exist with Unicode and DPI patches)
Older MSVC toolsets may have cached copies
Commercial grid control vendors offer MFC wrappers with modern support (though licensing becomes expensive)

Building with Visual Studio 2022

# Clone a maintained fork
git clone https://github.com/[maintainer]/gridctrl.git
cd gridctrl

Open the solution in Visual Studio 2022. If prompted, retarget to the latest Windows SDK. Update project settings:

Character Set → Use Unicode Character Set
Build for your architecture (x86/x64)

Expected build warnings about deprecated functions (strcpy → strcpy_s) are normal; suppress with project-wide _CRT_SECURE_NO_WARNINGS if acceptable.

Better Alternatives for New Projects

Don’t use MFC GridCtrl for new development:

Windows Forms / WPF — Microsoft’s recommended path for Windows desktop UI. DataGridView (.NET Framework) or DataGrid (WPF) have professional-grade features, active support, and built-in theming. The .NET ecosystem provides better long-term support than MFC.

Qt — QTableWidget and QTableView offer superior performance, cross-platform deployment, and responsive community maintenance. Modern Qt LTS versions (6.x) remain actively supported through 2030+.

Win32 ListView (Report Mode) — For simple tabular display with fewer than 5,000 rows, owner-drawn ListView is leaner than dragging in external grid controls. Use LVS_REPORT style with custom WM_DRAWITEM handlers.

Web-based frontends — Electron with React, Vue, or native web components. Libraries like AG Grid, DataTables, or TanStack Table have capabilities GridCtrl never achieved. HTTP backend with REST/gRPC communication replaces MFC’s tight coupling and improves maintainability.

When You Must Use GridCtrl

If maintaining legacy MFC code with existing GridCtrl:

Isolate to a DLL — Wrap grid functionality in a separate module to ease future replacement. This boundary simplifies eventual migration.

Test DPI and Unicode thoroughly — Use Windows 11’s Settings app to test at multiple scaling factors. Validate with non-ASCII data (CJK, Arabic, Cyrillic). Create unit tests for edge cases in text rendering.

Cap row counts — Implement pagination or lazy loading if data exceeds 10,000 rows. Don’t rely on GridCtrl’s virtual mode; it’s unreliable. Fetch data on-demand from your backend instead.

Document assumptions — Record which GridCtrl version, which patches, and which workarounds are in place. Include a manifest of DPI-scaling adjustments and Unicode conversions. Future maintainers will appreciate it.

Migration Path

If GridCtrl maintenance becomes untenable:

Incremental extraction — Replace grid UI with WPF or Qt one feature at a time rather than attempting a full rewrite. This reduces risk and allows testing in parallel.

Data layer decoupling — Move business logic out of MFC handlers into standalone libraries. UI replacement becomes surgical once data and presentation are separated.

API wrapper — Abstract grid operations behind a common interface. Switch implementations without touching caller code. Define methods for cell access, row insertion, sorting, and filtering at this boundary.

MFC itself is in maintenance mode; Microsoft hasn’t added features since 2015. GridCtrl mirrors that stagnation. If you’re evaluating investment of developer time, recognize the ecosystem won’t improve. For new functionality, migrating away pays dividends quickly. The sooner you move away from MFC, the sooner you can leverage modern tooling, frameworks, and language features.

MFC Grid Controls: GridCtrl and Modern Alternatives