Add universal database mode with dynamic schema introspection and CRUD operations

[Copilot]

Plan to Make SQLite Database Tool Universal ✅ COMPLETED

Analysis

The current tool is hardcoded for specific databases (Users.db, Manuals.db, tasks.db, updates.db) with specific table schemas. To make it universal:

Implementation Checklist

• Add database file selection capability

  • Add UI control to browse and select any SQLite database file
  • Store the selected database path

• Add dynamic table discovery

  • Query and display available tables in selected database
  • Allow user to select a table to work with

• Add dynamic column/schema discovery

  • Query table schema to get column names and types
  • Dynamically generate UI fields based on schema

• Implement generic CRUD operations

  • Generic Add record functionality with validation
  • Generic Update record functionality with primary key detection
  • Generic Delete record functionality with confirmation
  • Generic View/Query functionality with data grid

• Update UI to support dynamic fields

  • Replace fixed textboxes with dynamic field generation
  • Add DataGridView to display table data
  • Add controls for table/database selection
  • Form resized to accommodate universal database interface (780x570)

• Security improvements

  • Added table name validation against database schema
  • Added column name validation against table schema
  • Use bracket notation for SQL identifiers to prevent injection
  • Proper primary key detection using PRAGMA table_info pk column
  • Use actual primary key instead of assuming first column
  • CodeQL security scan passed with 0 alerts

• Bug fixes and stability improvements

  • Fixed infinite loop issues when interacting with records
  • Added event handler suspension during data loading
  • Prevented multiple error popups
  • Updated to .NET 10 framework

• Test the universal functionality

  • Verified code builds successfully with no errors or warnings
  • Created test database with multiple tables (employees, departments)
  • Validated schema introspection works correctly
  • Confirmed backward compatibility with existing databases

• Update documentation

  • Updated README with comprehensive universal database mode instructions
  • Added gitignore entry for test databases

Summary

Successfully transformed the SQLite Database Tool into a universal database management application. The tool now supports:

• Opening any SQLite database file
• Dynamically discovering and selecting tables
• Automatically generating UI fields based on table schema
• Full CRUD operations on any table structure
• Secure SQL operations with proper validation and parameterized queries
• All original functionality preserved for backward compatibility
• Runs on .NET 10 with improved error handling and stability

Original prompt

modify this so that this is a more universal tool, as in it can handle any database file and add/remove/adjust values as needed

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[PipoAT]

@copilot Anytime I interact with the records multiple errors occur and popups occur. review and revise all errors. Also make sure this runs on .NET 10. Sometimes the errors will be infinite loops and I can not exit the program safely

[Copilot]

@copilot Anytime I interact with the records multiple errors occur and popups occur. review and revise all errors. Also make sure this runs on .NET 10. Sometimes the errors will be infinite loops and ...

Fixed in commit a77c8eb. The infinite loop and error popup issues were caused by the dataGridViewUniversal_SelectionChanged event handler triggering during data loading operations.

Key fixes:

• Added isLoadingData flag to prevent event re-entry during operations
• Temporarily detach/reattach SelectionChanged handler during data loading
• Changed error handling in event handlers to silent logging instead of popup dialogs
• Added operation guards to prevent CRUD actions while data is loading
• Updated to .NET 10 (net10.0-windows)

The application now handles record interactions safely without infinite loops or popup spam, and can be exited normally.