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2
Votes

Provide support for Frozen Rows and Columns in Blazor Spreadsheet

Provide support for freezing specific rows and columns so they remain visible while scrolling through large datasets. This feature should allow locking header rows at the top and key columns on the left, ensuring important context (such as titles or identifiers) is always visible. It should include options to freeze the first row, first column, or selected rows and columns based on the active cell position. The frozen panes should work seamlessly with existing functionalities like filtering, sorting, and resizing, and should persist after saving and reopening the file.

Functional Requirements:

Freeze Rows:
  • Implement the ability to freeze a specified number of rows at the top of the spreadsheet.
  • Frozen rows should remain visible when scrolling vertically.

Freeze Columns:
  • Implement the ability to freeze a specified number of columns on the left side of the spreadsheet.
  • Frozen columns should remain visible when scrolling horizontally.

Freeze Both Rows and Columns:
  • Allow freezing both rows and columns simultaneously, creating four panes in the spreadsheet.

Configuration Options:
  • Provide properties to set the number of frozen rows and columns programmatically. 
  • Allow runtime changes to frozen rows and columns.

Scrolling Behavior:
  • Ensure smooth scrolling of unfrozen content while keeping frozen panes stationary.
  • Maintain proper alignment between frozen and unfrozen cells during scrolling.

Compatibility:
  • Ensure the Freeze Pane feature works correctly with existing features such as cell selection, editing, and formatting.