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    Class BeforeNodeSelectEventArgs

    Fired before a node is selected - can be canceled

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    Cancel CancelReason? CurrentSelection IsAdditive Node Timestamp Tree

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    Cancel: boolean = false

    Set to true to cancel the operation

    CancelReason?: string

    Optional reason for cancellation

    CurrentSelection: TreeNode[]

    Current selection before this change

    IsAdditive: boolean

    Whether this is adding to selection (multi-select) or replacing

    Node: TreeNode

    The node involved in the event

    Timestamp: Date

    Timestamp when event was raised

    Tree: unknown

    The tree component that raised the event

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