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What is TeeGrid?

TeeGrid is a lightweight, full-featured Grid/Tabular control for Embarcadero RAD Studio, Delphi, C++, and Lazarus FreePascal. It provides a modern, high-performance data grid component that works seamlessly across VCL and FireMonkey frameworks. Written from scratch (not derived from TCustomGrid or TGrid), TeeGrid consists of approximately 10,000 lines of pure Pascal code with a compiled size of only 100KB.
The same codebase works for both VCL and FireMonkey frameworks, providing 100% pure Pascal implementation.

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Key Features

Cross-Framework

Single codebase for VCL and FireMonkey with identical API

Lightweight

~10K lines of code, 100KB compiled size for optimal performance

Data Binding

Support for arrays, records, objects, datasets, and virtual data

Customizable

Built-in themes, custom renderers, and full styling control

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Data Sources

TeeGrid supports multiple data source types:
  • Arrays: Simple types (Integer, String, Single) and complex types (Records, Objects)
  • Datasets: TDataSource, FireDAC, ClientDataSet, and other database components
  • Virtual Data: Custom data providers using TVirtualData<T>
  • RTTI: Automatic column generation from record and class structures

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Visual Features

  • Headers and Footers: Multi-band headers with custom text, totals, and calculations
  • Row Grouping: Expandable/collapsible hierarchical data
  • Column Totals: Built-in calculations (Sum, Average, Count, Min, Max)
  • Cell Editing: In-place editing with custom editor controls
  • Sorting and Filtering: Multi-column sorting with custom comparers
  • Themes: Pre-built themes (iOS, Android, Black) and VCL theme support

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Supported Platforms

TeeGrid supports all major platforms through VCL and FireMonkey:

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VCL Framework

  • Windows 32-bit
  • Windows 64-bit
  • Windows 64-bit Modern

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FireMonkey Framework

  • Windows (32-bit and 64-bit)
  • macOS (64-bit)
  • iOS (32-bit and 64-bit)
  • Android (32-bit and 64-bit)
  • Linux (64-bit)

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Lazarus FreePascal

  • Windows
  • Linux
  • macOS

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IDE Compatibility

TeeGrid is compatible with:
  • Embarcadero RAD Studio: All versions including RAD Studio 13.0 Florence and older
  • Delphi: Community Edition and all commercial versions
  • C++ Builder: Full C++ support
  • Lazarus: Cross-platform FreePascal IDE

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License

TeeGrid is free for non-commercial use in binary format. Commercial licenses are available from Steema Software.
For non-commercial projects, you can use TeeGrid without any license fee. Commercial use requires a license from Steema Software.

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Architecture

TeeGrid’s architecture is designed for maximum flexibility and performance: 
TTeeGrid
  ├── Grid (TGrid)           // Core grid logic
  ├── Columns (TColumns)     // Column collection
  ├── Rows (TRows)           // Row management
  ├── Data (TVirtualData)    // Data source abstraction
  ├── Header (TBands)        // Header bands
  ├── Footer (TBands)        // Footer bands
  ├── Selected (TGridSelection) // Selection management
  └── Painter (TPainter)     // Rendering engine

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Performance

TeeGrid is optimized for performance:
  • Virtual Mode: Display millions of rows with minimal memory usage
  • Lazy Loading: Columns and data loaded on-demand
  • Efficient Rendering: Only visible cells are painted
  • GDI+ Support: Hardware-accelerated rendering on Windows (VCL)

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Next Steps

Installation

Learn how to install TeeGrid in your IDE

Quick Start

Create your first grid in minutes

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