Class TreeViewEvents<TValue>

The TreeView allows us to control the component by using events.

Inheritance

System.Object

Syncfusion.Blazor.SfBaseComponent

TreeViewEvents<TValue>

Namespace: Syncfusion.Blazor.Navigations

Assembly: Syncfusion.Blazor.dll

Syntax

public class TreeViewEvents<TValue> : SfBaseComponent

Type Parameters

Name	Description
TValue	"Tvalue paramter".

Constructors

TreeViewEvents()

Declaration

public TreeViewEvents()

Properties

Created

Triggers when the TreeView control is created successfully.

Declaration

public EventCallback<ActionEventArgs> Created { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<ActionEventArgs>

DataBound

Triggers when data source is populated in the TreeView.

Declaration

public EventCallback<DataBoundEventArgs<TValue>> DataBound { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<DataBoundEventArgs<TValue>>

DataSourceChanged

Triggers when data source is changed in the TreeView. The data source will be changed after performing some operation like drag and drop, node editing, adding and removing node.

Declaration

public EventCallback<DataSourceChangedEventArgs<TValue>> DataSourceChanged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<DataSourceChangedEventArgs<TValue>>

Destroyed

Triggers when the TreeView control is destroyed successfully.

Declaration

public EventCallback<ActionEventArgs> Destroyed { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<ActionEventArgs>

NodeChecked

Triggers when the TreeView node is checked/unchecked successfully.

Declaration

public EventCallback<NodeCheckEventArgs> NodeChecked { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeCheckEventArgs>

NodeChecking

Triggers before the TreeView node is to be checked/unchecked.

Declaration

public EventCallback<NodeCheckEventArgs> NodeChecking { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeCheckEventArgs>

NodeClicked

Triggers when the TreeView node is clicked successfully.

Declaration

public EventCallback<NodeClickEventArgs> NodeClicked { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeClickEventArgs>

NodeCollapsed

Triggers when the TreeView node collapses successfully.

Declaration

public EventCallback<NodeExpandEventArgs> NodeCollapsed { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeExpandEventArgs>

NodeCollapsing

Triggers before the TreeView node collapses.

Declaration

public EventCallback<NodeExpandEventArgs> NodeCollapsing { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeExpandEventArgs>

NodeDropped

Triggers when the TreeView node is dropped on target element successfully.

Declaration

public EventCallback<DragAndDropEventArgs> NodeDropped { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<DragAndDropEventArgs>

NodeEdited

Triggers when the TreeView node is renamed successfully.

Declaration

public EventCallback<NodeEditEventArgs> NodeEdited { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeEditEventArgs>

NodeEditing

Triggers before the TreeView node is renamed.

Declaration

public EventCallback<NodeEditEventArgs> NodeEditing { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeEditEventArgs>

NodeExpanded

Triggers when the TreeView node expands successfully.

Declaration

public EventCallback<NodeExpandEventArgs> NodeExpanded { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeExpandEventArgs>

NodeExpanding

Triggers before the TreeView node is to be expanded.

Declaration

public EventCallback<NodeExpandEventArgs> NodeExpanding { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeExpandEventArgs>

NodeSelected

Triggers when the TreeView node is selected/unselected successfully.

Declaration

public EventCallback<NodeSelectEventArgs> NodeSelected { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeSelectEventArgs>

NodeSelecting

Triggers before the TreeView node is selected/unselected.

Declaration

public EventCallback<NodeSelectEventArgs> NodeSelecting { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeSelectEventArgs>

OnActionFailure

Triggers when any TreeView action failed to fetch the desired results.

Declaration

public EventCallback<FailureEventArgs> OnActionFailure { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<FailureEventArgs>

OnKeyPress

Triggers when key press is successful. It helps to customize the operations at key press.

Declaration

public EventCallback<NodeKeyPressEventArgs> OnKeyPress { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeKeyPressEventArgs>

OnNodeDragged

Triggers when the TreeView node drag (move) is stopped.

Declaration

public EventCallback<DragAndDropEventArgs> OnNodeDragged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<DragAndDropEventArgs>

OnNodeDragStart

Triggers when the TreeView node drag (move) starts.

Declaration

public EventCallback<DragAndDropEventArgs> OnNodeDragStart { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<DragAndDropEventArgs>

OnNodeDragStop

Triggers when the TreeView node dragging (move) stops.

Declaration

public EventCallback<DragAndDropEventArgs> OnNodeDragStop { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<DragAndDropEventArgs>

OnNodeRender

Triggers before the TreeView node is appended to the TreeView element. It helps to customize specific nodes.

Declaration

public EventCallback<NodeRenderEventArgs<TValue>> OnNodeRender { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<NodeRenderEventArgs<TValue>>

Methods

OnInitializedAsync()

Method invoked when the component is ready to start.

Declaration

protected override Task OnInitializedAsync()

Returns

Type	Description
System.Threading.Tasks.Task	"Task".

Overrides

Syncfusion.Blazor.SfBaseComponent.OnInitializedAsync()