📊 Phase 13: Summary/Aggregation

Footer Summary - Aggregate data with sum, avg, count, min, max functions

1️⃣ Basic Footer Summary NEW

💡 Features

  • Built-in aggregation functions: sum, avg, count, min, max
  • Custom label and formatter support
  • Number formatting with locale support
  • Automatic cache invalidation on data changes

2️⃣ Custom Formatters & Styles

Customize how summary values are displayed with formatters and CSS classes.

3️⃣ Summary API Methods

🔧 API Methods

  • getSummaryValue(field) - Get summary value for specific field
  • getSummaryValues() - Get all summary values as object
  • refreshSummary() - Manually refresh summary calculations