Kanban / Validation / WIP Validation

Blazor Kanban Board - Work-In-Progress Validation

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To Do
- 5 items
Min: 6
Max: 8
In Progress
- 4 items
Min: 2
Testing
- 7 items
Min: 2
Max: 5
Done
- 5 items
Max: 4
Constraint
Type
Validate Constraints
Columns
MinCount
MaxCount

This sample demonstrates how to limit the minimum and maximum number of cards per column in the Kanban board. Use the property panel to choose the constraint type and configure related attributes.

Validate the number of cards at the column or swimlane level using the ConstraintType property:

  • Column – Validates based on the total cards in a column (default).
  • Swimlane – Validates based on cards within a specific column and swimlane.

Property panel options:

  • Columns – Select a column and set minimum/maximum limits.
  • MinCount – Minimum required cards per column. If not met, the column shows a validation state.
  • MaxCount – Maximum allowed cards per column. Exceeding shows a validation state.
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