_TreeView (gb.qt4)

该控件实现一个带图标的可选择文本条目的树状查看。

树状查看条目按一个键值进行索引。每个条目显示一个图标和字符串。

该控件有一个内部光标用于访问条目。使用MoveFirst、MoveNext、MoveTo...方法来移动内部光标，并用Item属性来获取指向的条目。

This class inherits UserControl.

This class is virtual.

This class is not creatable.

This class acts like a read-only array.

Properties

Available
Border
ClientH
ClientHeight
ClientW
ClientWidth
Compare
Count
Current
Editable
Grid	Return or set if a grid is displayed.
Highlight	Return or set if the item under the mouse cursor is highlighted.
Indent	Return the size of tree indentation in pixels.
Item
Key
Keys	Return a list of all items keys
Mode
Renaming
ScrollBar
ScrollH
ScrollHeight
ScrollW
ScrollWidth
ScrollX
ScrollY
Selected
Selection
ShowCheck	Return or set if selection is indicated by check boxes and radio buttons, or by highlighting the items.
Sorted

Inherited properties

Methods

Clear
CollapseAll	Collapse all tree items recursively.
Exist
ExpandAll	Expand all tree items recursively.
Filter	Filter the items according to the Filter event.
FindAt
MoveAbove
MoveBack
MoveBelow
MoveChild
MoveCurrent
MoveFirst
MoveLast
MoveNext
MoveParent
MovePrevious
MoveTo
Remove
Scroll
SelectAll
UnSelectAll

Inherited methods

Events

Activate
BeforeSort	This event is raised before automatically sorting the items
Cancel
Click
Collapse
Compare
Draw	This event allows to customize the drawing of a specific item.
Expand
Filter	This event is raised to filter a specific item.
Rename
Scroll	This event is raised when the view scrolls.
Select

Inherited events

Arrange
BeforeArrange
DblClick
Drag
DragLeave
DragMove
Drop
Enter
GotFocus
KeyPress	KeyPress例程结束后，TextBox控件内部的文本被Gambas根据按键编辑。所以它不检测从KeyPress 事件处理程序及其调用的任何子程序和函数中写回进Text 属性的任何信息。而Change事件开始于内容更新之后。
KeyRelease
Leave
LostFocus
Menu
MouseDown
MouseDrag
MouseMove
MouseUp
MouseWheel
NewChild