Spreadsheet Permissions
Lock the spreadsheet for view-only embedding, disable individual features, or veto commands dynamically with a CommandExecuting handler. These are component-level rules — for workbook-level rules that round-trip through XLSX, see the Protection demo.
Read-only mode link
Set ReadOnly="true" to reject every mutating command. The user can still scroll, select, and copy — formatting, autofill, paste, undo, sheet add/remove and every toolbar action are all silently dropped.
- Arial
- Aptos Narrow
- Calibri
- Cambria
- Courier New
- Georgia
- Segoe UI
- Tahoma
- Times New Roman
- Trebuchet MS
- Verdana
- 8
- 9
- 10
- 11
- 12
- 14
- 16
- 18
- 20
- 22
- 24
- 28
- 36
- 48
- 72
- All Borders
- Outside Borders
- Top Border
- Bottom Border
- Left Border
- Right Border
- No Border
- Merge && Center
- Merge Cells
- Unmerge Cells
- Greater Than...
- Less Than...
- Between...
- Equal To...
- Text Contains...
Configuration toggles link
Each Allow* parameter independently gates a single feature area. The Show* parameters control which parts of the chrome are rendered. All flags are independent — flip them in any combination.
- Arial
- Aptos Narrow
- Calibri
- Cambria
- Courier New
- Georgia
- Segoe UI
- Tahoma
- Times New Roman
- Trebuchet MS
- Verdana
- 8
- 9
- 10
- 11
- 12
- 14
- 16
- 18
- 20
- 22
- 24
- 28
- 36
- 48
- 72
- All Borders
- Outside Borders
- Top Border
- Bottom Border
- Left Border
- Right Border
- No Border
- Merge && Center
- Merge Cells
- Unmerge Cells
- Greater Than...
- Less Than...
- Between...
- Equal To...
- Text Contains...
Dynamic veto with CommandExecuting link
Subscribe to CommandExecuting to veto specific commands at runtime — for role checks, audit gates, or any logic that depends on backend state. The handler is async, so you can await a backend check before calling PreventDefault().
Reviewers can edit values. Only approvers can change cell formatting.
- Arial
- Aptos Narrow
- Calibri
- Cambria
- Courier New
- Georgia
- Segoe UI
- Tahoma
- Times New Roman
- Trebuchet MS
- Verdana
- 8
- 9
- 10
- 11
- 12
- 14
- 16
- 18
- 20
- 22
- 24
- 28
- 36
- 48
- 72
- All Borders
- Outside Borders
- Top Border
- Bottom Border
- Left Border
- Right Border
- No Border
- Merge && Center
- Merge Cells
- Unmerge Cells
- Greater Than...
- Less Than...
- Between...
- Equal To...
- Text Contains...
Related
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