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    Class BeforeColumnVisibilityChangeEventArgs

    Fired before column visibility change - can be canceled

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    cancel cancelReason? column grid newVisibility timestamp

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    cancel: boolean = false

    Set to true to cancel the operation

    cancelReason?: string

    Optional reason for cancellation (for logging/debugging)

    column: GridColumnConfig

    The column being shown/hidden

    grid: unknown

    The grid component that raised the event

    newVisibility: boolean

    New visibility state

    timestamp: Date

    Timestamp when event was raised

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