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Interface TreeView<T>

Represents a Tree view

Type parameters

  • T

层级

索引

Methods（2）

Properties（9）

Methods（2）

dispose

  • dispose(): any

reveal

  • reveal(element: T, options?: { select?: boolean; focus?: boolean; expand?: number | boolean }): Thenable<void>

  • Reveals the given element in the tree view. If the tree view is not visible then the tree view is shown and element is revealed.

    By default revealed element is selected. In order to not to select, set the option select to false. In order to focus, set the option focus to true. In order to expand the revealed element, set the option expand to true. To expand recursively set expand to the number of levels to expand. NOTE: You can expand only to 3 levels maximum.

    NOTE: The TreeDataProvider that the TreeView is registered with with must implement getParent method to access this API.

    Parameters

    • element: T
    • Optional options: { select?: boolean; focus?: boolean; expand?: number | boolean }
      • Optional select?: boolean
      • Optional focus?: boolean
      • Optional expand?: number | boolean

    Returns Thenable<void>

Properties（9）

Readonly onDidExpandElement

onDidExpandElement: Event<TreeViewExpansionEvent<T>>

Event that is fired when an element is expanded

Readonly onDidCollapseElement

onDidCollapseElement: Event<TreeViewExpansionEvent<T>>

Event that is fired when an element is collapsed

Readonly selection

selection: T[]

Currently selected elements.

Readonly onDidChangeSelection

onDidChangeSelection: Event<TreeViewSelectionChangeEvent<T>>

Event that is fired when the selection has changed

Readonly visible

visible: boolean

true if the tree view is visible otherwise false.

Readonly onDidChangeVisibility

onDidChangeVisibility: Event<TreeViewVisibilityChangeEvent>

Event that is fired when visibility has changed

Optional message

message: string

An optional human-readable message that will be rendered in the view. Setting the message to null, undefined, or empty string will remove the message from the view.

Optional title

title: string

The tree view title is initially taken from the extension package.json Changes to the title property will be properly reflected in the UI in the title of the view.

Optional description

description: string

An optional human-readable description which is rendered less prominently in the title of the view. Setting the title description to null, undefined, or empty string will remove the description from the view.

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