System.ObjectDisposedException: Cannot access a disposed object - SfCircularGauge

[An Chyi Chuah]

Mobile application has hit a runtime error as below.

Unhandled Exception:

System.ObjectDisposedException: Cannot access a disposed object.

Object name: 'Com.Syncfusion.Gauges.SfCircularGauge.SfCircularGauge'.

May I know how to solve this error? Please let me know if you need more information from me. Thanks!

[Ashwin Kumaravel]

Hi Chuah,

Thanks for using Syncfusion products,

We have validated your query and we are unable to reproduce the reported issue"System.ObjectDisposedException: Cannot access a disposed object" at our end.So can you please share your reproducing sample or replication procedure so it will be very helpful for us to validate on this and provide you a better solution.

Regards,
Ashwin.k

[Balakrishnan]

Hi Guys,

I am also struck with the same error, I got this error while navigating from a page having Syncfusion gauge to another page. I am using master details page. It is not showing any details. This is the error message got it in Hockey app crash report.

Xamarin caused by: android.runtime.JavaProxyThrowable: System.NullReferenceException: Object reference not set to an instance of an object

Com.Syncfusion.Gauges.SfCircularGauge.SfCircularGauge.Dispose(bool disposing)<7c0e9d154eba4c919dc94c7f8f2f022a>:0

Java.Lang.Object.Dispose()<2cbc8bc37f564147a10de1abb0c4e399>:0

Xamarin.Forms.Platform.Android.ViewRenderer<TView, TNativeView>.Dispose(bool disposing)<7fcbd59ddd2f4ebfb60e22f10868ab72>:0

Java.Lang.Object.Dispose()<2cbc8bc37f564147a10de1abb0c4e399>:0

Xamarin.Forms.Platform.Android.VisualElementRenderer<TElement>.Dispose(bool disposing)<7fcbd59ddd2f4ebfb60e22f10868ab72>:0

Xamarin.Forms.Platform.Android.PageRenderer.Dispose(bool disposing)<7fcbd59ddd2f4ebfb60e22f10868ab72>:0

Java.Lang.Object.Dispose()<2cbc8bc37f564147a10de1abb0c4e399>:0

Xamarin.Forms.Platform.Android.AppCompat.FragmentContainer.OnDestroyView()<7fcbd59ddd2f4ebfb60e22f10868ab72>:0

Android.Support.V4.App.Fragment.n_OnDestroyView(IntPtr jnienv, IntPtr native__this)<7a2a36256f1648ecbd0c15a75bc5a349>:0

at (wrapper dynamic-method) System.Object:bfdc0062-9df7-49d5-897a-ae391ada8a88 (intptr,intptr)

md5270abb39e60627f0f200893b490a1ade.FragmentContainer.n_onDestroyView(Native Method)

md5270abb39e60627f0f200893b490a1ade.FragmentContainer.onDestroyView()FragmentContainer.java:59

android.support.v4.app.Fragment.performDestroyView()Fragment.java:2410

android.support.v4.app.FragmentManagerImpl.moveToState()FragmentManager.java:1378

android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState()FragmentManager.java:1523

android.support.v4.app.FragmentManagerImpl.moveToState()FragmentManager.java:1598

android.support.v4.app.FragmentManagerImpl.executeOpsTogether()FragmentManager.java:2145

android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps()FragmentManager.java:2092

android.support.v4.app.FragmentManagerImpl.execPendingActions()FragmentManager.java:1998

android.support.v4.app.FragmentManagerImpl.executePendingTransactions()FragmentManager.java:762

md5b60ffeb829f638581ab2bb9b1a7f4f3f.InnerGestureListener.n_onSingleTapUp(Native Method)

md5b60ffeb829f638581ab2bb9b1a7f4f3f.InnerGestureListener.onSingleTapUp()InnerGestureListener.java:79

android.view.GestureDetector.onTouchEvent()GestureDetector.java:640

md5b60ffeb829f638581ab2bb9b1a7f4f3f.LabelRenderer.n_onTouchEvent(Native Method)

md5b60ffeb829f638581ab2bb9b1a7f4f3f.LabelRenderer.onTouchEvent()LabelRenderer.java:45

android.view.View.dispatchTouchEvent()View.java:11721

android.view.ViewGroup.dispatchTransformedTouchEvent()ViewGroup.java:2955

android.view.ViewGroup.dispatchTouchEvent()ViewGroup.java:2636

md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_dispatchTouchEvent(Native Method)

md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.dispatchTouchEvent()VisualElementRenderer_1.java:64

android.view.ViewGroup.dispatchTransformedTouchEvent()ViewGroup.java:2961

android.view.ViewGroup.dispatchTouchEvent()ViewGroup.java:2650

md5b60ffeb829f638581ab2bb9b1a7f4f3f.Platform_DefaultRenderer.n_dispatchTouchEvent(Native Method)

md5b60ffeb829f638581ab2bb9b1a7f4f3f.Platform_DefaultRenderer.dispatchTouchEvent()Platform_DefaultRenderer.java:54

android.view.ViewGroup.dispatchTransformedTouchEvent()ViewGroup.java:2961

android.view.ViewGroup.dispatchTouchEvent()ViewGroup.java:2650

md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_dispatchTouchEvent(Native Method)

md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.dispatchTouchEvent()VisualElementRenderer_1.java:64

android.view.ViewGroup.dispatchTransformedTouchEvent()ViewGroup.java:2961

android.view.ViewGroup.dispatchTouchEvent()ViewGroup.java:2650

md5b60ffeb829f638581ab2bb9b1a7f4f3f.PlatformRenderer.n_dispatchTouchEvent(Native Method)

md5b60ffeb829f638581ab2bb9b1a7f4f3f.PlatformRenderer.dispatchTouchEvent()PlatformRenderer.java:55

android.view.ViewGroup.dispatchTransformedTouchEvent()ViewGroup.java:2961

android.view.ViewGroup.dispatchTouchEvent()ViewGroup.java:2650

com.android.internal.policy.DecorView.superDispatchTouchEvent()DecorView.java:445

com.android.internal.policy.PhoneWindow.superDispatchTouchEvent()PhoneWindow.java:1828

android.app.Activity.dispatchTouchEvent()Activity.java:3292

android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent()WindowCallbackWrapper.java:71

com.android.internal.policy.DecorView.dispatchTouchEvent()DecorView.java:407

android.view.View.dispatchPointerEvent()View.java:11960

android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent()ViewRootImpl.java:4776

android.view.ViewRootImpl$ViewPostImeInputStage.onProcess()ViewRootImpl.java:4590

android.view.ViewRootImpl$InputStage.deliver()ViewRootImpl.java:4128

android.view.ViewRootImpl$InputStage.onDeliverToNext()ViewRootImpl.java:4181

android.view.ViewRootImpl$InputStage.forward()ViewRootImpl.java:4147

android.view.ViewRootImpl$AsyncInputStage.forward()ViewRootImpl.java:4274

android.view.ViewRootImpl$InputStage.apply()ViewRootImpl.java:4155

android.view.ViewRootImpl$AsyncInputStage.apply()ViewRootImpl.java:4331

android.view.ViewRootImpl$InputStage.deliver()ViewRootImpl.java:4128

android.view.ViewRootImpl$InputStage.onDeliverToNext()ViewRootImpl.java:4181

android.view.ViewRootImpl$InputStage.forward()ViewRootImpl.java:4147

android.view.ViewRootImpl$InputStage.apply()ViewRootImpl.java:4155

android.view.ViewRootImpl$InputStage.deliver()ViewRootImpl.java:4128

android.view.ViewRootImpl.deliverInputEvent()ViewRootImpl.java:6642

android.view.ViewRootImpl.doProcessInputEvents()ViewRootImpl.java:6616

android.view.ViewRootImpl.enqueueInputEvent()ViewRootImpl.java:6577

android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent()ViewRootImpl.java:6745

android.view.InputEventReceiver.dispatchInputEvent()InputEventReceiver.java:185

android.os.MessageQueue.nativePollOnce(Native Method)

android.os.MessageQueue.next()MessageQueue.java:325

android.os.Looper.loop()Looper.java:142

android.app.ActivityThread.main()ActivityThread.java:6541

java.lang.reflect.Method.invoke(Native Method)

com.android.internal.os.Zygote$MethodAndArgsCaller.run()Zygote.java:240

com.android.internal.os.ZygoteInit.main()ZygoteInit.java:767

[Sri Gayathri Gopalakrishnan]

Hi Balakrishnan,

Thanks for using Syncfusion products,

A support incident has been created already under your account and we have updated details in the incident.

Please get back to us if you need any other assistance.

Regards,
Sri Gayathri. G