![]() Recursively call the AddChildren method adding all childrenĪwait Task.Run(() => AddChildren(DataNodes, ColTreeNodes, objTreeNode)) ObjTreeNode.IsSelected = node.IsSelected ![]() True, NodeName = " Two-Two", ParentId = 4 True, NodeName = " One-Two", ParentId = 1įalse, NodeName = " Two-One", ParentId = 4įalse, NodeName = " Two-One-One", ParentId = 5 Method simply creates a collection of tree nodes, including which ones are selected:įalse, NodeName = " One-One", ParentId = 1 Pass DataNodes to GetTree to get a list of TreeNodesĪwait TreeUtility.GetTreeList(colAllTags, SelectedTreeNode) Sample data, binds it to the collation that is bound to the Loading The Tree (and Node Parent dropdown) ![]() It is programmatically transformed to and from the Therefore, even though this sample stores data in-memory, aĬollection is used to store the data. Must be bound to a collection of a class ( TreeNode), that contains a nested collection of children, if a database is used to persist the data, it would need to be stored in a collection that resembles the To the underlying tree control and causing nodes with children to collapse) The rest of the application is primarily contained in theĪre required to prevent events tied to selecting a tree node from The complete solution contains files added to the If the node has any children, they will be come the child of the parent of the deleted node. Mode, the node can be deleted by clicking the The currently selected node will not display in theĭropdown, so it cannot accidently be selected as a parent of itself) Of this site), displays a hierarchical tree with checkboxes next to each tree node.īutton will display a list of the tree nodes that have their checkboxes checked.Įxisting nodes can be edited by clicking on them.Ĭan be altered and the changes persisted by clicking the Note - also see: Radzen Blazor Tree Creator with Checkboxes The Application This effectively associates the entity with additional context. In addition, hierarchical tree nodes can be moved, (by simply assigning, or removing a parent to the tree nodes). You can build a Blazor tree creator with checkboxes.Ī list of checkboxes allows you to assign multipleĮntity, such as help desk tickets.
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