Self referencing loop detected for property error

[Alex]

Hi,

When binding the listbox to a complex object that has a self referencing loop , the ListBox control throws an exception.  This is only an issue when binding the datasource to the syncfusion control, not an issue with Newtonsoft library.  Blazor calls the method without any exception.

blazor.server.js:19 [2020-09-26T10:34:30.134Z] Error: Newtonsoft.Json.JsonSerializationException: Self referencing loop detected for property 'RegionaCodeNavigation' with type 'EyePayNetwork.Portal.Entities.Region'. Path '[0].CountryInRegion[0]'.

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CheckForCircularReference(JsonWriter writer, Object value, JsonProperty property, JsonContract contract, JsonContainerContract containerContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues(JsonWriter writer, Object value, JsonContainerContract contract, JsonProperty member, JsonProperty property, JsonContract& memberContract, Object& memberValue)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList(JsonWriter writer, IEnumerable values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList(JsonWriter writer, IEnumerable values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)

   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType)

   at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType)

   at Newtonsoft.Json.JsonSerializer.Serialize(JsonWriter jsonWriter, Object value, Type objectType)

   at Newtonsoft.Json.JsonConvert.SerializeObjectInternal(Object value, Type type, JsonSerializer jsonSerializer)

   at Newtonsoft.Json.JsonConvert.SerializeObject(Object value, Type type, JsonSerializerSettings settings)

   at Newtonsoft.Json.JsonConvert.SerializeObject(Object value)

   at Syncfusion.Blazor.DropDowns.SfListBox`2.updatesetModel(Dictionary`2 props)

   at Syncfusion.Blazor.DropDowns.SfListBox`2.OnParametersSetAsync()

   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)

   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle)

[Mohan Kumar Ramasamy]

Hi Alex,  

   

We have checked the reported issue in server side Blazor application and it is not reproduced in our end. For your reference we have prepared a sample. Please find the sample link. 

 

Link: https://www.syncfusion.com/downloads/support/forum/158183/ze/ListBox-1099089596  

 

If you are still facing the issue, kindly share the below details. 

 

• If possible, try to reproduce the reported issue in provided sample or share the issue reproducible sample

·         Please share us the video demonstration of this issue.  

 

Please provide the above requested information, based on that we will check and provide you a better solution quickly. 

  

Regards, 

Mohankumar R