Class DiagramEvents

It is used to defines the diagram events.

Inheritance

System.Object

SfBaseComponent

Syncfusion.Blazor.Diagrams.Internal.SfDiagramBaseExtension

DiagramEvents

Inherited Members

SfBaseComponent.OnAfterRenderAsync(Boolean)

SfBaseComponent.Dispose()

SfBaseComponent.Dispose(Boolean)

SfBaseComponent.OnObservableChange(String, Object, Boolean, NotifyCollectionChangedEventArgs)

Namespace: Syncfusion.Blazor.Diagrams

Assembly: Syncfusion.Blazor.dll

Syntax

public class DiagramEvents : SfDiagramBaseExtension, 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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

mainParent

Declaration

protected override SfDiagramBaseExtension mainParent { get; set; }

Property Value

Type	Description
Syncfusion.Blazor.Diagrams.Internal.SfDiagramBaseExtension

Overrides

Syncfusion.Blazor.Diagrams.Internal.SfDiagramBaseExtension.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>	An event callback function.

MouseLeave

Triggered when mouse leaves node/connector.

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<IBlazorMouseEventArgs>	An event callback function.

OnCommandExecuted

Triggers when a command executed.

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<ICommandExecuteEventArgs>	An event callback function.

OnConnectionChange

Triggers when the connection is changed

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<IBlazorConnectionChangeEventArgs>	An event callback function.

OnContextMenuOpen

Triggers before opening the context menu

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<DiagramBeforeMenuOpenEventArgs>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

OnKeyUp

Triggers when a user releases a key.

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<IKeyEventArgs>	An event callback function.

OnPositionChange

Triggers while dragging the elements in diagram

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<IBlazorDraggingEventArgs>	An event callback function.

OnRotateChange

Triggers when the diagram elements are rotated

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<IRotationEventArgs>	An event callback function.

OnSizeChange

Triggers when a node is resized

Declaration

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

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<ISizeChangeEventArgs>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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>	An event callback function.

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

SfBaseComponent.OnInitializedAsync()