![]() ![]() ![]() Create unbound columns and create Excel-style format conditions based on these column values.Customize column captions (using HTML tags) and cell appearance settings.Specify the key fields that form a hierarchy. Telerik treeview how to#The following example creates a TreeList at runtime and shows how to perform basic customization tasks: To customize these settings in the form’s .Load event handler, call the TreeList.ForceInitialize method prior to performing additional customization. If the TreeList control is created at design time, changing the visual settings and size of the control and its elements (e.g., invoking the best fit functionality) is not in effect before the Tree List has completed its initialization. See Nodes for information on node objects, node structure and how to iterate through nodes. Child nodes of each node are stored in the node’s TreeListNode.Nodes collection. The collection of root level nodes is stored in the TreeList.Nodes property. The column collection can be accessed with the TreeList.Columns property.Īt design time, you can create columns in the Tree List Designer. Multiple ways to filter data - Microsoft Excel-inspired Filters, Auto Filter Row, Advanced Filter Editor, filters created in code, Find Panel, etc.Sorting data against any number of columns.You can either create all nodes at once, or start with root nodes only to provide child nodes on demand. In unbound mode, you need to manually populate the TreeList with nodes manually. These fields must be assigned to the TreeList.KeyFieldName and TreeList.ParentFieldName properties. In bound mode, data is loaded from an external data source specified by the TreeList.DataSource and TreeList.DataMember properties.Ī data source must contain two fields that provide information on parent-child relationships between records: a unique record ID (key), and a parent record ID. The control supports bound and unbound modes. ![]() The Tree List displays data with parent-child relations as nodes organized into a hierarchy. StyleFormatConditionCollection.TreeListControl RepositoryItemTreeListLookUpEdit.TreeList IScrollBarAnnotationsOwner(Of ScrollAnnotationKind),įilterPopupExcelParseFilterCriteriaEventArgs.TreeList IHyperLinkOwner(Of TreeListHyperlinkClickEventArgs), ![]()
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