DynamicProxies in the System.Data.Entity provide a flexible and efficient

I'm struggling with this code snippet in my controller. Can anyone help me find a solution?

public JsonResult GetMembers(Member member)
{
    //var list = repository.GetAll().Select(x => new ViewModel.MemberView
    //{
    //    Memberid = x.id,
    //    Name = x.name,
    //    EmailAddress = x.Email,
    //    Role = x.role.rolename,
    //    ReportingRoleId = Convert.ToInt32(x.reportingroleid)
    //});

    var list = repository.GetAll();
    return Json(list, JsonRequestBehavior.AllowGet);
}

Here's the JavaScript function I'm working on:

<script type="text/javascript">
    debugger;
    alert('first');
    google.load("visualization", "1", {packages:["orgchart"]});
    google.setOnLoadCallback(drawChart);
    function drawChart() {
        $.ajax({
            type: "POST",
            url: "/Organization/GetMembers",
            data :'{member:"+JSON.stringify(member)+"}',
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function (data) {

                alert("Member Name" + data);
            },
            failure: function (r) {
                alert(r);
            },
            error: function (r) {
                alert(r);
            }
        });
}

An issue arose:

I encountered an error message stating 'A circular reference was detected while serializing an object of type 'System.Data.Entity.DynamicProxies.NewProjects_A3B55EADDAEF6C59245BBD2495E29ECFE10B583596DB24AADF23A4990342D104'.'

Answer №1

Encountering a similar issue, I found a solution that worked for me when trying to make a selection.

public MyDbContext()   : base("name=MyDbContext"){this.Configuration.ProxyCreationEnabled = false;}

Prior to accessing your table, be sure to include

this.Configuration.ProxyCreationEnabled = false;

Answer №2

Make sure to convert your data into a list before you return it in order to prevent EF from returning proxies for lazy loading. Check out the code snippet below.

var dataList = repository.GetAll().ToList();

Also, take a look at this resource for more information.

Why does EF return a proxy class instead of the actual entity?

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