1unitUntTree;23interface4usesSystem.Generics.Collections, FireDAC.Comp.Client,JSON,REST.Json,System.SysUtils;5type6TeleItem=class7dispcode:string;//编码8dispName:String;//名称9level_num:integer;//级次10children:TList<Teleitem>;//子级11destructorDestroy;override;1213end;141516functionIntTree(FDQue...
= null) { return resultContainer; } else { // The object is not under this TreeViewItem // so collapse it. subContainer.IsExpanded = false; } } } } return null; } /// <summary> /// Search for an element of a certain type in the visual tree. /// </summary> /// <ty...
Notice that the CategoryId is stored in the Value property // of the node. This will make querying for items in a specific category easier when // the third-level nodes are created. TreeNode newNode = new TreeNode(); newNode.Text = row["CategoryName"].ToString(); newNode.Value = ...
The TreeView control also uses custom colors, which include a custom highlight color. You can customize most of the TreeView colors by setting color properties, but the selection highlight color is not available as a property. Additionally, the default selection highlight rectangle extends only ...
if (Components[I] is tbitbtn ) then (Components[I] as tbitbtn).enabled:=true; end; if tvwcode.Selected.AbsoluteIndex<>0 then begin if not frmdm.tabbm.Active then frmdm.tabbm.Open; frmdm.tabbm.Edit; frmdm.tabbm.Fields[0].asstring:=edit1.text+edit2.text; ...
Note that the e.Source property inExample 8from the event arguments will have a different value depending on if the RadTreeView is bound. InExample 8the e.Source property will be of type RadTreeViewitem if the RadTreeView is not data-bound (the RadTreeViewItem is declared in XAML or ...
在UI界面中，树形视图是比较常用的表示层级结构的方式，WPF中提供了TreeView控件。对于TreeView控件的基本...
(inty =1; y <4; ++y) {// Add a child node to the root node.node.Nodes.Add(String.Format("Subtask {0}", y)); } } myTreeView.ExpandAll();// Add tags containing alert messages to a few nodes// and set the node background color to highlight them.myTreeView.Nodes[1].Nodes...
Do not enter any other information in this string; adding a target parameter or an event handler will not work. insFld(Parent Folder, Child Folder);//在父节点中插入一个子节点 例:aux1 = insFld(foldersTree, gFld("Europe", "http...")) Argument Parent Folder Specifies the parent folder....
However, I think the signature is incorrect. It doesn't really make sense to me to see these slots on the TreeView component, they seem more appropriate on the children if at all. KaelWDremoved T: bugFunctionality that does not work as intended/expected on Dec 17, 2024 KaelWD commented...