How to Resolve the 'Self Referencing Loop Detected' Exception in JSON.Net?

"Self Referencing Loop Detected" Exception with JSON.Net

This exception occurs when JSON.Net attempts to serialize an object with a loop of self-referencing properties. In this case, the error was encountered while serializing a list of Route objects containing deep references to other entities, such as PartNumber and PartType.

Resolving the issue

To resolve this error, you need to prevent the self-referencing loop. This can be achieved by disabling eager loading and proxy creation in the Entity Framework DbContext class constructor:

public YourDbContext() : base("name = YourDbContext")
{
    // Disable eager loading and proxy creation to avoid self-referencing loop
    this.Configuration.LazyLoadingEnabled = false;
    this.Configuration.ProxyCreationEnabled = false;
}

By disabling these settings, only the necessary data is loaded when querying the database, preventing the exception from occurring.

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