Class DiagramEvents

It is used to defines the diagram events.

Inheritance

System.Object

Syncfusion.Blazor.SfBaseComponent

Syncfusion.Blazor.SfBaseExtension

DiagramEvents

Namespace: Syncfusion.Blazor.Diagrams

Assembly: Syncfusion.Blazor.dll

Syntax

public class DiagramEvents : SfBaseExtension, IBaseInit

Constructors

DiagramEvents()

Declaration

public DiagramEvents()

Properties

Clicked

Triggers when a node, connector or diagram is clicked

Declaration

public EventCallback<IBlazorClickEventArgs> Clicked { get; set; }

Property Value

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

ContextMenuItemClicked

Triggers when a context menu item is clicked

Declaration

public EventCallback<DiagramMenuEventArgs> ContextMenuItemClicked { get; set; }

Property Value

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

Created

Triggered when the diagram is rendered completely.

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<System.Object>

CustomHistoryChanged

Triggers when a custom entry change is reverted or restored(undo/redo)

Declaration

public EventCallback<IBlazorCustomHistoryChangeArgs> CustomHistoryChanged { get; set; }

Property Value

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

DataLoaded

Triggered when the diagram layout is rendered completely.

Declaration

public EventCallback<IDataLoadedEventArgs> DataLoaded { get; set; }

Property Value

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

DragEnter

Triggers when a symbol is dragged into diagram from symbol palette

Declaration

public EventCallback<IBlazorDragEnterEventArgs> DragEnter { get; set; }

Property Value

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

DragLeave

Triggers when a symbol is dragged outside of the diagram.

Declaration

public EventCallback<IBlazorDragLeaveEventArgs> DragLeave { get; set; }

Property Value

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

FixedUserHandleClick

Triggers when a Fixed User Handle item is clicked

Declaration

public EventCallback<FixedUserHandleClickEventArgs> FixedUserHandleClick { get; set; }

Property Value

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

HistoryChanged

Triggers when a change is reverted or restored(undo/redo)

Declaration

public EventCallback<IBlazorHistoryChangeArgs> HistoryChanged { get; set; }

Property Value

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

mainParent

Declaration

protected override SfBaseExtension mainParent { get; set; }

Property Value

Type	Description
Syncfusion.Blazor.SfBaseExtension

Overrides

Syncfusion.Blazor.SfBaseExtension.mainParent

MouseEnter

Triggered when mouse enters a node/connector.

Declaration

public EventCallback<IBlazorMouseEventArgs> MouseEnter { get; set; }

Property Value

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

MouseLeave

Triggered when mouse leaves node/connector.

Declaration

public EventCallback<IBlazorMouseEventArgs> MouseLeave { get; set; }

Property Value

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

OnCommandExecuted

Triggers when a command executed.

Declaration

public EventCallback<ICommandExecuteEventArgs> OnCommandExecuted { get; set; }

Property Value

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

OnConnectionChange

Triggers when the connection is changed

Declaration

public EventCallback<IBlazorConnectionChangeEventArgs> OnConnectionChange { get; set; }

Property Value

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

OnContextMenuOpen

Triggers before opening the context menu

Declaration

public EventCallback<DiagramBeforeMenuOpenEventArgs> OnContextMenuOpen { get; set; }

Property Value

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

OnDoubleClick

Triggers when a node, connector or diagram model is clicked twice

Declaration

public EventCallback<IBlazorDoubleClickEventArgs> OnDoubleClick { get; set; }

Property Value

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

OnDrop

Triggers when a symbol is dragged and dropped from symbol palette to drawing area

Declaration

public EventCallback<IBlazorDropEventArgs> OnDrop { get; set; }

Property Value

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

OnKeyDown

Triggers when a user is pressing a key.

Declaration

public EventCallback<IKeyEventArgs> OnKeyDown { get; set; }

Property Value

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

OnKeyUp

Triggers when a user releases a key.

Declaration

public EventCallback<IKeyEventArgs> OnKeyUp { get; set; }

Property Value

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

OnPositionChange

Triggers while dragging the elements in diagram

Declaration

public EventCallback<IBlazorDraggingEventArgs> OnPositionChange { get; set; }

Property Value

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

OnRotateChange

Triggers when the diagram elements are rotated

Declaration

public EventCallback<IRotationEventArgs> OnRotateChange { get; set; }

Property Value

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

OnSizeChange

Triggers when a node is resized

Declaration

public EventCallback<ISizeChangeEventArgs> OnSizeChange { get; set; }

Property Value

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

OnUserHandleMouseDown

Triggers when a mouseDown on the user handle.

Declaration

public EventCallback<UserHandleEventsArgs> OnUserHandleMouseDown { get; set; }

Property Value

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

OnUserHandleMouseEnter

Triggers when a mouseEnter on the user handle.

Declaration

public EventCallback<UserHandleEventsArgs> OnUserHandleMouseEnter { get; set; }

Property Value

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

OnUserHandleMouseLeave

Triggers when a mouseLeave on the user handle.

Declaration

public EventCallback<UserHandleEventsArgs> OnUserHandleMouseLeave { get; set; }

Property Value

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

OnUserHandleMouseUp

Triggers when a mouseUp on the user handle.

Declaration

public EventCallback<UserHandleEventsArgs> OnUserHandleMouseUp { get; set; }

Property Value

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

PropertyChanged

Triggers once the node or connector property changed.

Declaration

public EventCallback<IBlazorPropertyChangeEventArgs> PropertyChanged { get; set; }

Property Value

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

SelectionChanged

Triggers when the selection is changed in diagram

Declaration

public EventCallback<IBlazorSelectionChangeEventArgs> SelectionChanged { get; set; }

Property Value

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

TextEdited

Triggers when editor got focus at the time of node’s label or text node editing.

Declaration

public EventCallback<IBlazorTextEditEventArgs> TextEdited { get; set; }

Property Value

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

Methods

BuildRenderTree(RenderTreeBuilder)

Declaration

protected override void BuildRenderTree(RenderTreeBuilder __builder)

Parameters

Type	Name	Description
Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder	__builder

OnInitializedAsync()

Declaration

protected override Task OnInitializedAsync()

Returns

Type	Description
System.Threading.Tasks.Task	Returns asynchronous operation when the component is ready to start, having received its initial parameters from its parent in the render tree

Overrides

Syncfusion.Blazor.SfBaseComponent.OnInitializedAsync()