#Blazor treeview how to
This allows you to provide an event-handling method that performs a custom routine whenever this event occurs.įor more information about how to handle events, see Handling and Raising Events. The Blazor TreeView is a UI component that allows you to represent flat and hierarchical data in a tree-like structure in both WebAssembly (WASM) and server-side Blazor apps. The TreeNodeDataBound event is raised when a data item is bound to a node in the TreeView control. The following code example provides sample XML data for the preceding code example. ' Give the Chapter 2 node a custom image. Sub Data_Bound(ByVal sender As Object, ByVal e As TreeNodeEventArgs) Give the Chapter 2 node a custom image. Void Data_Bound(Object sender, TreeNodeEventArgs e) Also be sure to provide your own images for this example to display. For this example to work correctly, you must copy the sample XML data, provided after this code example, to a file named Book.xml. The following code example demonstrates how to use the TreeNodeDataBound event to change the image for a node when some condition is met. The second code example provides sample XML data for the first code example. The first code example demonstrates how to use the TreeNodeDataBound event to change the image for a node when some condition is met. public:Įvent System::Web::UI::WebControls::TreeNodeEventHandler ^ TreeNodeDataBound public event .WebControls.TreeNodeEventHandler TreeNodeDataBound member this.TreeNodeDataBound : .WebControls.TreeNodeEventHandler Public Custom Event TreeNodeDataBound As TreeNodeEventHandler Event Type TreeNodeEventHandler Examples Install-Package Blazorise.TreeView Imports In your main Imports.razor add: using Blazorise.
#Blazor treeview install
Installation NuGet Install extension from NuGet.
It is useful for displaying large amounts of nested data. Edit node text in-line with editable nodes support. Select multiple nodes using built-in check boxes. Drag and drop multiple selected tree nodes anywhere. Load a wide range of nodes with optimal performance. Occurs when a data item is bound to a node in the TreeView control. Blazorise TreeView component The TreeView component is a graphical control element that presents a hierarchical view of information. Blazor TreeView - A High-Performance Hierarchical Tree Control Display hierarchical data in a tree-view structure.
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