http://www.tutorialspoint.com/vb.net/vb.net_treeview.htm
vbscript教程 时间:2021-02-27 阅读:()
Copyrighttutorialspoint.
comVB.
NET-TREEVIEWCONTROLVB.
NET-TREEVIEWCONTROLTheTreeViewcontrolisusedtodisplayhierarchicalrepresentationsofitemssimilartothewaysthefilesandfoldersaredisplayedintheleftpaneoftheWindowsExplorer.
Eachnodemaycontainoneormorechildnodes.
Let'sclickonaTreeViewcontrolfromtheToolboxandplaceitontheform.
PropertiesoftheTreeViewControlThefollowingaresomeofthecommonlyusedpropertiesoftheTreeViewcontrol:S.
NPropertyDescription1BackColorGetsorsetsthebackgroundcolorforthecontrol.
2BackgroundImageGetsorsetthebackgroundimagefortheTreeViewcontrol.
3BackgroundImageLayoutGetsorsetsthelayoutofthebackgroundimagefortheTreeViewcontrol.
4BorderStyleGetsorsetstheborderstyleofthetreeviewcontrol.
5CheckBoxesGetsorsetsavalueindicatingwhethercheckboxesaredisplayednexttothetreenodesinthetreeviewcontrol.
6DataBindingsGetsthedatabindingsforthecontrol.
7FontGetsorsetsthefontofthetextdisplayedbythecontrol.
8FontHeightGetsorsetstheheightofthefontofthecontrol.
9ForeColorThecurrentforegroundcolorforthiscontrol,whichisthecolorthecontrolusestodrawitstext.
10ItemHeightGetsorsetstheheightofeachtreenodeinthetreeviewcontrol.
11NodesGetsthecollectionoftreenodesthatareassignedtothetreeviewcontrol.
12PathSeparatorGetsorsetsthedelimiterstringthatthetreenodepathuses.
13RightToLeftLayoutGetsorsetsavaluethatindicateswhethertheTreeViewshouldbelaidoutfromright-to-left.
14ScrollableGetsorsetsavalueindicatingwhetherthetreeviewcontroldisplaysscrollbarswhentheyareneeded.
15SelectedImageIndexGetsorsetstheimagelistindexvalueoftheimagethatisdisplayedwhenatreenodeisselected.
16SelectedImageKeyGetsorsetsthekeyofthedefaultimageshownwhenaTreeNodeisinaselectedstate.
17SelectedNodeGetsorsetsthetreenodethatiscurrentlyselectedinthetreeviewcontrol.
18ShowLinesGetsorsetsavalueindicatingwhetherlinesaredrawnbetweentreenodesinthetreeviewcontrol.
19ShowNodeToolTipsGetsorsetsavalueindicatingToolTipsareshownwhenthemousepointerhoversoveraTreeNode.
20ShowPlusMinusGetsorsetsavalueindicatingwhetherplus-sign+andminus-signbuttonsaredisplayednexttotreenodesthatcontainchildtreenodes.
21ShowRootLinesGetsorsetsavalueindicatingwhetherlinesaredrawnbetweenthetreenodesthatareattherootofthetreeview.
22SortedGetsorsetsavalueindicatingwhetherthetreenodesinthetreeviewaresorted.
23StateImageListGetsorsetstheimagelistthatisusedtoindicatethestateoftheTreeViewanditsnodes.
24TextGetsorsetsthetextoftheTreeView.
25TopNodeGetsorsetsthefirstfully-visibletreenodeinthetreeviewcontrol.
26TreeViewNodeSorterGetsorsetstheimplementationofIComparertoperformacustomsortoftheTreeViewnodes.
27VisibleCountGetsthenumberoftreenodesthatcanbefullyvisibleinthetreeviewcontrol.
MethodsoftheTreeViewControlThefollowingaresomeofthecommonlyusedmethodsoftheTreeViewcontrol:S.
NMethodName&Description1CollapseAllCollapsesallthenodesincludingallchildnodesinthetreeviewcontrol.
2ExpandAllExpandsallthenodes.
3GetNodeAtGetsthenodeatthespecifiedlocation.
4GetNodeCountGetsthenumberoftreenodes.
5SortSortsalltheitemsinthetreeviewcontrol.
6ToStringReturnsastringcontainingthenameofthecontrol.
EventsoftheTreeViewControlThefollowingaresomeofthecommonlyusedeventsoftheTreeViewcontrol:S.
NEventDescription1AfterCheckOccursafterthetreenodecheckboxischecked.
2AfterCollapseOccursafterthetreenodeiscollapsed.
3AfterExpandOccursafterthetreenodeisexpanded.
4AfterSelectOccursafterthetreenodeisselected.
5BeforeCheckOccursbeforethetreenodecheckboxischecked.
6BeforeCollapseOccursbeforethetreenodeiscollapsed.
7BeforeExpandOccursbeforethetreenodeisexpanded.
8BeforeLabelEditOccursbeforethetreenodelabeltextisedited.
9BeforeSelectOccursbeforethetreenodeisselected.
10ItemDragOccurswhentheuserbeginsdragginganode.
11NodeMouseClickOccurswhentheuserclicksaTreeNodewiththemouse.
12NodeMouseDoubleClickOccurswhentheuserdouble-clicksaTreeNodewiththemouse.
13NodeMouseHoverOccurswhenthemousehoversoveraTreeNode.
14PaddingChangedOccurswhenthevalueofthePaddingpropertychanges.
15PaintOccurswhentheTreeViewisdrawn.
16RightToLeftLayoutChangedOccurswhenthevalueoftheRightToLeftLayoutpropertychanges.
17TextChangedOccurswhentheTextpropertychanges.
TheTreeNodeClassTheTreeNodeclassrepresentsanodeofaTreeView.
EachnodeinaTreeViewcontrolisanobjectoftheTreeNodeclass.
TobeabletouseaTreeViewcontrolweneedtohavealookatsomecommonlyusedpropertiesandmethodsoftheTreeNodeclass.
PropertiesoftheTreeNodeClassThefollowingaresomeofthecommonlyusedpropertiesoftheTreeNodeclass:S.
NPropertyDescription1BackColorGetsorsetsthebackgroundcolorofthetreenode.
2CheckedGetsorsetsavalueindicatingwhetherthetreenodeisinacheckedstate.
3ContextMenuGetstheshortcutmenuthatisassociatedwiththistreenode.
4ContextMenuStripGetsorsetstheshortcutmenuassociatedwiththistreenode.
5FirstNodeGetsthefirstchildtreenodeinthetreenodecollection.
6FullPathGetsthepathfromtheroottreenodetothecurrenttreenode.
7IndexGetsthepositionofthetreenodeinthetreenodecollection.
8IsEditingGetsavalueindicatingwhetherthetreenodeisinaneditablestate.
9IsExpandedGetsavalueindicatingwhetherthetreenodeisintheexpandedstate.
10IsSelectedGetsavalueindicatingwhetherthetreenodeisintheselectedstate.
11IsVisibleGetsavalueindicatingwhetherthetreenodeisvisibleorpartiallyvisible.
12LastNodeGetsthelastchildtreenode.
13LevelGetsthezero-baseddepthofthetreenodeintheTreeViewcontrol.
14NameGetsorsetsthenameofthetreenode.
15NextNodeGetsthenextsiblingtreenode.
16NodesGetsthecollectionofTreeNodeobjectsassignedtothecurrenttreenode.
17ParentGetstheparenttreenodeofthecurrenttreenode.
18PrevNodeGetstheprevioussiblingtreenode.
19PrevVisibleNodeGetsthepreviousvisibletreenode.
20TagGetsorsetstheobjectthatcontainsdataaboutthetreenode.
21TextGetsorsetsthetextdisplayedinthelabelofthetreenode.
22ToolTipTextGetsorsetsthetextthatappearswhenthemousepointerhoversoveraTreeNode.
23TreeViewGetstheparenttreeviewthatthetreenodeisassignedto.
MethodsoftheTreeNodeClassThefollowingaresomeofthecommonlyusedmethodsoftheTreeNodeclass:S.
NMethodName&Description1CollapseCollapsesthetreenode.
2ExpandExpandsthetreenode.
3ExpandAllExpandsallthechildtreenodes.
4GetNodeCountReturnsthenumberofchildtreenodes.
5RemoveRemovesthecurrenttreenodefromthetreeviewcontrol.
6ToggleTogglesthetreenodetoeithertheexpandedorcollapsedstate.
7ToStringReturnsastringthatrepresentsthecurrentobject.
ExampleInthisexample,letuscreateatreeviewatruntime.
Let'sdoubleclickontheFormandputthefollowcodeintheopenedwindow.
PublicClassForm1PrivateSubForm1_Load(senderAsObject,eAsEventArgs)HandlesMyBase.
Load'createanewTreeViewDimTreeView1AsTreeViewTreeView1=NewTreeView()TreeView1.
Location=NewPoint(10,10)TreeView1.
Size=NewSize(150,150)Me.
Controls.
Add(TreeView1)TreeView1.
Nodes.
Clear()'CreatingtherootnodeDimroot=NewTreeNode("Application")TreeView1.
Nodes.
Add(root)TreeView1.
Nodes(0).
Nodes.
Add(NewTreeNode("Project1"))'CreatingchildnodesunderthefirstchildForloopindexAsInteger=1To4TreeView1.
Nodes(0).
Nodes(0).
Nodes.
Add(New_TreeNode("SubProject"&Str(loopindex)))Nextloopindex'creatingchildnodesundertherootTreeView1.
Nodes(0).
Nodes.
Add(NewTreeNode("Project6"))'creatingchildnodesunderthecreatedchildnodeForloopindexAsInteger=1To3TreeView1.
Nodes(0).
Nodes(1).
Nodes.
Add(New_TreeNode("ProjectFile"&Str(loopindex)))Nextloopindex'Setthecaptionbartextoftheform.
Me.
Text="tutorialspoint.
com"EndSubEndClassWhentheabovecodeisexecutedandrunusingStartbuttonavailableattheMicrosoftVisualStudiotoolbar,itwillshowthefollowingwindow:Youcanexpandthenodestoseethechildnodes:Loading[MathJax]/jax/output/HTML-CSS/jax.
js
comVB.
NET-TREEVIEWCONTROLVB.
NET-TREEVIEWCONTROLTheTreeViewcontrolisusedtodisplayhierarchicalrepresentationsofitemssimilartothewaysthefilesandfoldersaredisplayedintheleftpaneoftheWindowsExplorer.
Eachnodemaycontainoneormorechildnodes.
Let'sclickonaTreeViewcontrolfromtheToolboxandplaceitontheform.
PropertiesoftheTreeViewControlThefollowingaresomeofthecommonlyusedpropertiesoftheTreeViewcontrol:S.
NPropertyDescription1BackColorGetsorsetsthebackgroundcolorforthecontrol.
2BackgroundImageGetsorsetthebackgroundimagefortheTreeViewcontrol.
3BackgroundImageLayoutGetsorsetsthelayoutofthebackgroundimagefortheTreeViewcontrol.
4BorderStyleGetsorsetstheborderstyleofthetreeviewcontrol.
5CheckBoxesGetsorsetsavalueindicatingwhethercheckboxesaredisplayednexttothetreenodesinthetreeviewcontrol.
6DataBindingsGetsthedatabindingsforthecontrol.
7FontGetsorsetsthefontofthetextdisplayedbythecontrol.
8FontHeightGetsorsetstheheightofthefontofthecontrol.
9ForeColorThecurrentforegroundcolorforthiscontrol,whichisthecolorthecontrolusestodrawitstext.
10ItemHeightGetsorsetstheheightofeachtreenodeinthetreeviewcontrol.
11NodesGetsthecollectionoftreenodesthatareassignedtothetreeviewcontrol.
12PathSeparatorGetsorsetsthedelimiterstringthatthetreenodepathuses.
13RightToLeftLayoutGetsorsetsavaluethatindicateswhethertheTreeViewshouldbelaidoutfromright-to-left.
14ScrollableGetsorsetsavalueindicatingwhetherthetreeviewcontroldisplaysscrollbarswhentheyareneeded.
15SelectedImageIndexGetsorsetstheimagelistindexvalueoftheimagethatisdisplayedwhenatreenodeisselected.
16SelectedImageKeyGetsorsetsthekeyofthedefaultimageshownwhenaTreeNodeisinaselectedstate.
17SelectedNodeGetsorsetsthetreenodethatiscurrentlyselectedinthetreeviewcontrol.
18ShowLinesGetsorsetsavalueindicatingwhetherlinesaredrawnbetweentreenodesinthetreeviewcontrol.
19ShowNodeToolTipsGetsorsetsavalueindicatingToolTipsareshownwhenthemousepointerhoversoveraTreeNode.
20ShowPlusMinusGetsorsetsavalueindicatingwhetherplus-sign+andminus-signbuttonsaredisplayednexttotreenodesthatcontainchildtreenodes.
21ShowRootLinesGetsorsetsavalueindicatingwhetherlinesaredrawnbetweenthetreenodesthatareattherootofthetreeview.
22SortedGetsorsetsavalueindicatingwhetherthetreenodesinthetreeviewaresorted.
23StateImageListGetsorsetstheimagelistthatisusedtoindicatethestateoftheTreeViewanditsnodes.
24TextGetsorsetsthetextoftheTreeView.
25TopNodeGetsorsetsthefirstfully-visibletreenodeinthetreeviewcontrol.
26TreeViewNodeSorterGetsorsetstheimplementationofIComparertoperformacustomsortoftheTreeViewnodes.
27VisibleCountGetsthenumberoftreenodesthatcanbefullyvisibleinthetreeviewcontrol.
MethodsoftheTreeViewControlThefollowingaresomeofthecommonlyusedmethodsoftheTreeViewcontrol:S.
NMethodName&Description1CollapseAllCollapsesallthenodesincludingallchildnodesinthetreeviewcontrol.
2ExpandAllExpandsallthenodes.
3GetNodeAtGetsthenodeatthespecifiedlocation.
4GetNodeCountGetsthenumberoftreenodes.
5SortSortsalltheitemsinthetreeviewcontrol.
6ToStringReturnsastringcontainingthenameofthecontrol.
EventsoftheTreeViewControlThefollowingaresomeofthecommonlyusedeventsoftheTreeViewcontrol:S.
NEventDescription1AfterCheckOccursafterthetreenodecheckboxischecked.
2AfterCollapseOccursafterthetreenodeiscollapsed.
3AfterExpandOccursafterthetreenodeisexpanded.
4AfterSelectOccursafterthetreenodeisselected.
5BeforeCheckOccursbeforethetreenodecheckboxischecked.
6BeforeCollapseOccursbeforethetreenodeiscollapsed.
7BeforeExpandOccursbeforethetreenodeisexpanded.
8BeforeLabelEditOccursbeforethetreenodelabeltextisedited.
9BeforeSelectOccursbeforethetreenodeisselected.
10ItemDragOccurswhentheuserbeginsdragginganode.
11NodeMouseClickOccurswhentheuserclicksaTreeNodewiththemouse.
12NodeMouseDoubleClickOccurswhentheuserdouble-clicksaTreeNodewiththemouse.
13NodeMouseHoverOccurswhenthemousehoversoveraTreeNode.
14PaddingChangedOccurswhenthevalueofthePaddingpropertychanges.
15PaintOccurswhentheTreeViewisdrawn.
16RightToLeftLayoutChangedOccurswhenthevalueoftheRightToLeftLayoutpropertychanges.
17TextChangedOccurswhentheTextpropertychanges.
TheTreeNodeClassTheTreeNodeclassrepresentsanodeofaTreeView.
EachnodeinaTreeViewcontrolisanobjectoftheTreeNodeclass.
TobeabletouseaTreeViewcontrolweneedtohavealookatsomecommonlyusedpropertiesandmethodsoftheTreeNodeclass.
PropertiesoftheTreeNodeClassThefollowingaresomeofthecommonlyusedpropertiesoftheTreeNodeclass:S.
NPropertyDescription1BackColorGetsorsetsthebackgroundcolorofthetreenode.
2CheckedGetsorsetsavalueindicatingwhetherthetreenodeisinacheckedstate.
3ContextMenuGetstheshortcutmenuthatisassociatedwiththistreenode.
4ContextMenuStripGetsorsetstheshortcutmenuassociatedwiththistreenode.
5FirstNodeGetsthefirstchildtreenodeinthetreenodecollection.
6FullPathGetsthepathfromtheroottreenodetothecurrenttreenode.
7IndexGetsthepositionofthetreenodeinthetreenodecollection.
8IsEditingGetsavalueindicatingwhetherthetreenodeisinaneditablestate.
9IsExpandedGetsavalueindicatingwhetherthetreenodeisintheexpandedstate.
10IsSelectedGetsavalueindicatingwhetherthetreenodeisintheselectedstate.
11IsVisibleGetsavalueindicatingwhetherthetreenodeisvisibleorpartiallyvisible.
12LastNodeGetsthelastchildtreenode.
13LevelGetsthezero-baseddepthofthetreenodeintheTreeViewcontrol.
14NameGetsorsetsthenameofthetreenode.
15NextNodeGetsthenextsiblingtreenode.
16NodesGetsthecollectionofTreeNodeobjectsassignedtothecurrenttreenode.
17ParentGetstheparenttreenodeofthecurrenttreenode.
18PrevNodeGetstheprevioussiblingtreenode.
19PrevVisibleNodeGetsthepreviousvisibletreenode.
20TagGetsorsetstheobjectthatcontainsdataaboutthetreenode.
21TextGetsorsetsthetextdisplayedinthelabelofthetreenode.
22ToolTipTextGetsorsetsthetextthatappearswhenthemousepointerhoversoveraTreeNode.
23TreeViewGetstheparenttreeviewthatthetreenodeisassignedto.
MethodsoftheTreeNodeClassThefollowingaresomeofthecommonlyusedmethodsoftheTreeNodeclass:S.
NMethodName&Description1CollapseCollapsesthetreenode.
2ExpandExpandsthetreenode.
3ExpandAllExpandsallthechildtreenodes.
4GetNodeCountReturnsthenumberofchildtreenodes.
5RemoveRemovesthecurrenttreenodefromthetreeviewcontrol.
6ToggleTogglesthetreenodetoeithertheexpandedorcollapsedstate.
7ToStringReturnsastringthatrepresentsthecurrentobject.
ExampleInthisexample,letuscreateatreeviewatruntime.
Let'sdoubleclickontheFormandputthefollowcodeintheopenedwindow.
PublicClassForm1PrivateSubForm1_Load(senderAsObject,eAsEventArgs)HandlesMyBase.
Load'createanewTreeViewDimTreeView1AsTreeViewTreeView1=NewTreeView()TreeView1.
Location=NewPoint(10,10)TreeView1.
Size=NewSize(150,150)Me.
Controls.
Add(TreeView1)TreeView1.
Nodes.
Clear()'CreatingtherootnodeDimroot=NewTreeNode("Application")TreeView1.
Nodes.
Add(root)TreeView1.
Nodes(0).
Nodes.
Add(NewTreeNode("Project1"))'CreatingchildnodesunderthefirstchildForloopindexAsInteger=1To4TreeView1.
Nodes(0).
Nodes(0).
Nodes.
Add(New_TreeNode("SubProject"&Str(loopindex)))Nextloopindex'creatingchildnodesundertherootTreeView1.
Nodes(0).
Nodes.
Add(NewTreeNode("Project6"))'creatingchildnodesunderthecreatedchildnodeForloopindexAsInteger=1To3TreeView1.
Nodes(0).
Nodes(1).
Nodes.
Add(New_TreeNode("ProjectFile"&Str(loopindex)))Nextloopindex'Setthecaptionbartextoftheform.
Me.
Text="tutorialspoint.
com"EndSubEndClassWhentheabovecodeisexecutedandrunusingStartbuttonavailableattheMicrosoftVisualStudiotoolbar,itwillshowthefollowingwindow:Youcanexpandthenodestoseethechildnodes:Loading[MathJax]/jax/output/HTML-CSS/jax.
js
- http://www.tutorialspoint.com/vb.net/vb.net_treeview.htm相关文档
- 本科vb
- 基于Maxsurf二次开发的船体型值表建立方法
- vb.net+sql毕业设计管理系统(论文+系统)
- 语句WinCC VBScript教程.
- 语句VBScript与JScript实例教程第三章
- 匹配VBS教程VBscript属性-Pattern 属性（VBS tutorial VBscript attributes - Pattern properties）
Megalayer美国服务器CN2优化线路30M带宽3独立IP限时月299元
Megalayer 商家算是比较新晋的国内主机商，主要方向是美国、香港、菲律宾等机房的独立服务器为主，以及站群服务器和显卡服务器。同时也有新增价格并不是特别优惠的VPS云服务器。上午的时候有网友问问有没有CN2线路的美国独立服务器的，这里我推荐他选择Megalayer看看，目前也是有活动截止到月底的。Megalayer 商家创办2年左右时间，如果我们初次使用建议月付体验。目前在进行且可能截止到6月...
HaloCloud：日本软银vps100M/200M/500M带宽,，¥45.00元/月
halocloud怎么样?halocloud是一个于2019下半年建立的商家，主要提供日本软银VPS，广州移动VDS，株洲联通VDS，广州移动独立服务器，Halo邮局服务，Azure香港1000M带宽月抛机器等。日本软银vps,100M/200M/500M带宽,可看奈飞,香港azure1000M带宽，可以解锁奈飞等流媒体，有需要看奈飞的朋友可以入手!点击进入：halocloud官方网站地址日本vp...
gcorelabs：美国GPU服务器，8张RTX2080Ti，2*Silver-4214/256G内存/1T SSD/
gcorelabs提供美国阿什本数据中心的GPU服务器（显卡服务器），默认给8路RTX2080Ti，服务器网卡支持2*10Gbps（ANX），CPU为双路Silver-4214（24核48线程），256G内存，1Gbps独享带宽仅需150欧元、10bps带宽仅需600欧元，不限流量随便跑吧。 官方网站 ：https://gcorelabs.com/hosting/dedicated/gpu/ ...
vbscript教程为你推荐
-
961556225317563152822是哪个银行的如何免费开通黄钻怎么免费开通黄钻~~~?深圳公交车路线深圳公交车路线正则表达式javajava正则表达式网易公开课怎么下载网易公开课的视频该如何下载？开机滚动条如何关闭开机滚动条?雅虎天盾雅虎天盾、瑞星杀毒软件、瑞星防火墙、卡卡上网安全助手能同时使用吗？宕机宕机 这个词是什么意思啊srv记录SRV记录的简介系统分析员考系统分析员有什么好处？