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2
Votes

Sfchart not shown

Hello,

when creating a brandnew Visual Studio project with the first Sfchart demo (

https://blazor.syncfusion.com/documentation/chart/working-with-data/) 

for me it's working until version 18.4.0.35 but not anymore with 18.4.0.39.


 In the browser debugger I get:

[2021-02-01T07:05:48.501Z] Information: Normalizing '_blazor' to 'https://localhost:44320/_blazor'.

blazor.server.js:1 [2021-02-01T07:05:48.525Z] Information: WebSocket connected to wss://localhost:44320/_blazor?id=ccQG1Xuxy8-dQ5N_cd_vtw.

blazor.server.js:1 [2021-02-01T07:05:49.145Z] Error: Connection disconnected with error 'Error: Server returned an error on close: Connection closed with an error.'.

e.log @ blazor.server.js:1

blazor.server.js:1 [2021-02-01T07:05:52.146Z] Information: Normalizing '_blazor' to 'https://localhost:44320/_blazor'.

blazor.server.js:1 [2021-02-01T07:05:52.156Z] Information: WebSocket connected to wss://localhost:44320/_blazor?id=6PGjFhGWSDRfLxWySMy0YQ.

blazor.server.js:19 [2021-02-01T07:05:54.045Z] Error: System.NullReferenceException: Object reference not set to an instance of an object.

   at Syncfusion.Blazor.Charts.SfChart.Calculatebounds()

   at Syncfusion.Blazor.Charts.SfChart.RefreshBound()

   at Syncfusion.Blazor.Charts.SfChart.ResizeChart()

   at System.Threading.Tasks.Task.<>c.b__139_0(Object state)

   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteSynchronously(TaskCompletionSource`1 completion, SendOrPostCallback d, Object state)

   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.<>c.<.cctor>b__23_0(Object state)

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

--- End of stack trace from previous location where exception was thrown ---

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteBackground(WorkItem item)

e.log @ blazor.server.js:19

C @ blazor.server.js:8

(anonymous) @ blazor.server.js:8

(anonymous) @ blazor.server.js:1

e.invokeClientMethod @ blazor.server.js:1

e.processIncomingData @ blazor.server.js:1

connection.onreceive @ blazor.server.js:1

i.onmessage @ blazor.server.js:1

blazor.server.js:1 [2021-02-01T07:05:54.046Z] Information: Connection disconnected.


Kind regards

Andreas