not possible to listen to events

Tobias Koller

Asked On January 13, 2020 07:25 AM UTC

I followed your example on

https://ej2.syncfusion.com/blazor/documentation/diagram/native-events/

to set events to the diagram.

It was not possible:

1. your example-cdoe uses UIMouseEventArgs which are now MouseEventArgs

2. When I try exactly the example I get the following error:

System.AggregateException: One or more errors occurred. (InvalidCharacterError: Failed to execute 'setAttribute' on 'Element': '@onmousedown' is not a valid attribute name.)

---> System.InvalidOperationException: InvalidCharacterError: Failed to execute 'setAttribute' on 'Element': '@onmousedown' is not a valid attribute name.

at Microsoft.AspNetCore.Components.RenderTree.Renderer.InvokeRenderCompletedCallsAfterUpdateDisplayTask(Task updateDisplayTask, Int32[] updatedComponents)

--- End of inner exception stack trace ---

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Shyam G [Syncfusion]

Replied On January 14, 2020 10:19 AM UTC

Hi Tobias,

Reported Issue : Native events doesn’t work for diagram components

We can reproduce the issue. We have confirmed this as a defect. We have logged a defect report for this issue. We will fix this issue and provide the patch on weekly patch release 21^th January, 2020.

Now, you can track the status of your request through below feedback link.

Feedback Link: https://www.syncfusion.com/feedback/11285/native-events-doesnt-work-for-diagram-components

Regards,

Shyam G

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Shyam G [Syncfusion]

Replied On January 22, 2020 10:23 AM UTC

Hi Tobias,

Reported Issue : Native events doesn’t work for diagram components

We have fixed the reported issue and included it in our patch release (v17.4.44) which is rolled out successfully.

Please upgrade to the latest version packages to resolve this issue.

https://www.npmjs.com/package/@syncfusion/ej2-diagrams

Regards,

Shyam G

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Tobias Koller

Replied On January 22, 2020 10:28 AM UTC

yes it now works perfect.

thank you.

Is there a way to disable label-edit-functionallity on double-click of node?

Tobias

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Shyam G [Syncfusion]

Replied On January 23, 2020 09:04 AM UTC

Hi Tobias,

Please set AnnotationConstraints as ReadOnly to disable the editing of label at runtime. Please refer to a code example, help documentation and the sample below.

Code example:

DiagramNode node1 = new DiagramNode()

{

// Position of the node

OffsetX = 250,

OffsetY = 250,

// Size of the node

Width = 100,

Height = 100,

Annotations = new ObservableCollection<DiagramNodeAnnotation>()

{

new DiagramNodeAnnotation()

{

Content = "Node",

Constraints = AnnotationConstraints.ReadOnly

}

},

Style = new NodeShapeStyle() { Fill = "#6BA5D7", StrokeColor = "white" }

};

Help documentation: https://ej2.syncfusion.com/blazor/documentation/diagram/labels/?no-cache=1#read-only-annotations

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/AnnotationSample-701415238

Regards,

Shyam G

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Thread ID:	Created:	Updated:	Platform:	Replies:
150592	Jan 13,2020 07:25 AM UTC	Jan 23,2020 09:04 AM UTC	Blazor	4

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