我需要在Json的帮助下显示一个表，但是我收到了错误。
在序列化类型为＆＃39; System.Reflection.RuntimeModule＆＃39;
的对象时检测到循环引用
Index.cshtml
var table = $('#maintable').DataTable({
"ajax": {
"type": "POST",
"url": '@Url.Action("BindDatatable", "Sales")',
"data": { itemtyyID: $("#ddl_item").val(), itloccid: $("#getlocation").val() },
//"contentType": application/json,
"traditional": true,
"datatype": "json",
"dataSrc": function (json) {
//Make your callback here.
alert("Done!");
// var x = JSON.parse(json);
// return x;
return json.data;
}
},
"columns": [
{ "data": "Item", "autowidth": true },
{ "data": "qty", "autowidth": true },
{ "data": "rate", "autowidth": true },
{ "data": "ppb", "autowidth": true, "visible": false }
],
select: true
});
SalesController.cs
[HttpPost]
public JsonResult BindDatatable(string itemtyyID, string itloccid)
{
Int32 itemtyyIDD, itloccIDD;
DataSet ds = new DataSet();
if (!string.IsNullOrEmpty(itemtyyID) && !string.IsNullOrEmpty(itloccid))
{
itemtyyIDD = Convert.ToInt32(itemtyyID);
itloccIDD = Convert.ToInt32(itloccid);
}
else
{
itemtyyIDD = 0;
itloccIDD = 0;
}
DataTable dt = new DataTable();
OracleCommand cmdsp = new OracleCommand();
cmdsp.CommandType = System.Data.CommandType.StoredProcedure;
cmdsp.CommandText = "Pkg_Inventory.Prc_sale_stock";
cmdsp.Parameters.Add("ITEMYYID", OracleType.Int32, 25).Value = itemtyyIDD;
cmdsp.Parameters.Add("ITLOCID", OracleType.Int32, 25).Value = itloccIDD;
cmdsp.Parameters.Add("SALESTOCK", OracleType.Cursor).Direction = ParameterDirection.Output;
cmdsp.Parameters.Add("Pmsg", OracleType.VarChar, 10).Direction = ParameterDirection.Output;
dt = MyContext.FillDataTable(cmdsp);
List<justatest.Models.SalesModel.Sales> details = new List<justatest.Models.SalesModel.Sales>();
if (cmdsp.Parameters["Pmsg"].Value.ToString() == "T")
{
foreach (DataRow dtrow in dt.Rows)
{
justatest.Models.SalesModel.Sales user = new justatest.Models.SalesModel.Sales();
user.Item = dtrow["item"].ToString();
user.qty = dtrow["quan"].ToString();
user.rate = dtrow["rate"].ToString();
user.ppb = dtrow["price_bag"].ToString();
details.Add(user);
}
}
var data = details.ToArray();
return Json(new { data = data}, JsonRequestBehavior.AllowGet);
}
模型（Sales.cs）
public class Sales
{
public Sales() { }
public string Item { get; set; }
public string Loc { get; set; }
public Int64 ID { get; set; }
public Int64 SALES_R_ID { get; set; }
public Int64 car_IDD { get; set; }
public Int64 driver_IDD { get; set; }
public Int64 labor_IDD { get; set; }
public string qty { get; set; }
public Int64 t_qty { get; set; }
public Int64 ship_qty { get; set; }
public string rate { get; set; }
public string ppb { get; set; }
public string inv_lock_id { get; set; }
public string Nameofcustomer { get; set; }
public string Descrip { get; set; }
public DateTime Date { get; set; }
public Int32 InvoiceID { get; set; }
public Int32 TotAmount { get; set; }
public Int32 Disc { get; set; }
public Int32 GTotal { get; set; }
public Int32 Customer_Presence { get; set; }
public Int32 paid { get; set; }
public Int32 pay_amt { get; set; }
public Int32 ship { get; set; }
public Int32 shipamt { get; set; }
public Int32 trips_no { get; set; }
public Int32 bags_no { get; set; }
[Required(ErrorMessage = "Customer Name is Required")]
public string Customer_Name { get; set; }
[MaxLength(7)]
[MinLength(1)]
[RegularExpression("^[0-9]*$", ErrorMessage = "Loan must be numeric")]
public string LoanAmount { get; set; }
[MaxLength(7)]
[MinLength(1)]
[RegularExpression("^[0-9]*$", ErrorMessage = "Loan must be numeric")]
public string ReceivedLoan { get; set; }
public DataTable GetItems()
{
//this.Address = "N/A";
DataTable dt = new DataTable();
OracleCommand CmdCommand = new OracleCommand();
CmdCommand.CommandType = System.Data.CommandType.StoredProcedure;
CmdCommand.CommandText = "Pkg_Inventory.PRC_Shop_Sale_Stock";
CmdCommand.Parameters.Add("SHOPSALE", OracleType.Cursor).Direction = ParameterDirection.Output;
CmdCommand.Parameters.Add("PMSG", OracleType.VarChar, 10).Direction = ParameterDirection.Output;
dt = MyContext.FillDataTable(CmdCommand);
return dt;
}
//For Item List
public System.Web.Mvc.SelectList DT1SelectList(DataTable de, string valueField, string textField, object selectedvalue)
{
if (de == null || valueField == null || valueField.Trim().Length == 0
|| textField == null || textField.Trim().Length == 0)
return null;
var list = new List<Object>();
for (int i = 0; i < de.Rows.Count; i++)
{
list.Add(new
{
value = de.Rows[i][valueField].ToString(),
text = de.Rows[i][textField].ToString()
});
}
return new System.Web.Mvc.SelectList(list.AsEnumerable(), "value", "text", selectedvalue);
}
//For Car
public System.Web.Mvc.SelectList DT2SelectList(DataTable de, string valueField, string textField, object selectedvalue)
{
if (de == null || valueField == null || valueField.Trim().Length == 0
|| textField == null || textField.Trim().Length == 0)
return null;
var list = new List<Object>();
for (int i = 0; i < de.Rows.Count; i++)
{
list.Add(new
{
value = de.Rows[i][valueField].ToString(),
text = de.Rows[i][textField].ToString()
});
}
return new System.Web.Mvc.SelectList(list.AsEnumerable(), "value", "text", selectedvalue);
}
//For Driver
public System.Web.Mvc.SelectList DT3SelectList(DataTable de, string valueField, string textField, object selectedvalue)
{
if (de == null || valueField == null || valueField.Trim().Length == 0
|| textField == null || textField.Trim().Length == 0)
return null;
var list = new List<Object>();
for (int i = 0; i < de.Rows.Count; i++)
{
list.Add(new
{
value = de.Rows[i][valueField].ToString(),
text = de.Rows[i][textField].ToString()
});
}
return new System.Web.Mvc.SelectList(list.AsEnumerable(), "value", "text", selectedvalue);
}
//For Labor
public System.Web.Mvc.SelectList DT4SelectList(DataTable de, string valueField, string textField, object selectedvalue)
{
if (de == null || valueField == null || valueField.Trim().Length == 0
|| textField == null || textField.Trim().Length == 0)
return null;
var list = new List<Object>();
for (int i = 0; i < de.Rows.Count; i++)
{
list.Add(new
{
value = de.Rows[i][valueField].ToString(),
text = de.Rows[i][textField].ToString()
});
}
return new System.Web.Mvc.SelectList(list.AsEnumerable(), "value", "text", selectedvalue);
}
//For sales Invoice
public DataTable GetInvoice()
{
DataTable dt = new DataTable();
OracleCommand CmdCommand = new OracleCommand();
CmdCommand.CommandType = System.Data.CommandType.StoredProcedure;
CmdCommand.CommandText = "Pkg_Sales.Prc_Show_Invoice";
CmdCommand.Parameters.Add("SALES_REF_ID", OracleType.Int32, 25).Value = InvoiceID;
CmdCommand.Parameters.Add("SALECUR", OracleType.Cursor).Direction = ParameterDirection.Output;
CmdCommand.Parameters.Add("PMSG", OracleType.VarChar, 10).Direction = ParameterDirection.Output;
dt = MyContext.FillDataTable(CmdCommand);
return dt;
}
//For sales Details
public DataTable GetSaleDetails()
{
DataTable dt = new DataTable();
OracleCommand CmdCommand = new OracleCommand();
CmdCommand.CommandType = System.Data.CommandType.StoredProcedure;
CmdCommand.CommandText = "Pkg_Sales.Prc_Show_Sale_Details";
CmdCommand.Parameters.Add("SALES_REF_ID", OracleType.Int32, 25).Value = InvoiceID;
CmdCommand.Parameters.Add("SALECUR", OracleType.Cursor).Direction = ParameterDirection.Output;
CmdCommand.Parameters.Add("PMSG", OracleType.VarChar, 10).Direction = ParameterDirection.Output;
dt = MyContext.FillDataTable(CmdCommand);
return dt;
}
//For Item Details
public DataTable GetItemDetails()
{
DataTable dt = new DataTable();
OracleCommand CmdCommand = new OracleCommand();
CmdCommand.CommandType = System.Data.CommandType.StoredProcedure;
CmdCommand.CommandText = "Pkg_Sales.Prc_Show_Item_Details";
CmdCommand.Parameters.Add("SALES_REF_ID", OracleType.Int32, 25).Value = InvoiceID;
CmdCommand.Parameters.Add("SALECUR", OracleType.Cursor).Direction = ParameterDirection.Output;
CmdCommand.Parameters.Add("PMSG", OracleType.VarChar, 10).Direction = ParameterDirection.Output;
dt = MyContext.FillDataTable(CmdCommand);
return dt;
}
//For Item Shipment
public DataTable GetItemShipment()
{
DataTable dt = new DataTable();
OracleCommand CmdCommand = new OracleCommand();
CmdCommand.CommandType = System.Data.CommandType.StoredProcedure;
CmdCommand.CommandText = "Pkg_Sales.PRC_Ship_Details";
CmdCommand.Parameters.Add("SALE_R_ID", OracleType.Int32, 25).Value = InvoiceID;
CmdCommand.Parameters.Add("SHIPCURSOR", OracleType.Cursor).Direction = ParameterDirection.Output;
CmdCommand.Parameters.Add("PMSG", OracleType.VarChar, 10).Direction = ParameterDirection.Output;
dt = MyContext.FillDataTable(CmdCommand);
return dt;
}
public DataTable SaleDetails
{
get { return GetSaleDetails(); }
}
public DataTable ItemDetails
{
get { return GetItemDetails(); }
}
public DataTable ItemShipment
{
get { return GetItemShipment(); }
}
public string JavascriptToRun { get; set; }
}
栈跟踪
<!DOCTYPE html>
<html>
<head>
<title>A circular reference was detected while serializing an object of type 'System.Reflection.RuntimeModule'.</title>
<meta name="viewport" content="width=device-width" />
<style>
body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
pre {font-family:"Consolas","Lucida Console",Monospace;font-size:11pt;margin:0;padding:0.5em;line-height:14pt}
.marker {font-weight: bold; color: black;text-decoration: none;}
.version {color: gray;}
.error {margin-bottom: 10px;}
.expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
@media screen and (max-width: 639px) {
pre { width: 440px; overflow: auto; white-space: pre-wrap; word-wrap: break-word; }
}
@media screen and (max-width: 479px) {
pre { width: 280px; }
}
</style>
</head>
<body bgcolor="white">
<span><H1>Server Error in '/justatest' Application.<hr width=100% size=1 color=silver></H1>
<h2> <i>A circular reference was detected while serializing an object of type 'System.Reflection.RuntimeModule'.</i> </h2></span>
<font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">
<b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
<br><br>
<b> Exception Details: </b>System.InvalidOperationException: A circular reference was detected while serializing an object of type 'System.Reflection.RuntimeModule'.<br><br>
<b>Source Error:</b> <br><br>
<table width=100% bgcolor="#ffffcc">
<tr>
<td>
<code>
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.</code>
</td>
</tr>
</table>
<br>
<b>Stack Trace:</b> <br><br>
<table width=100% bgcolor="#ffffcc">
<tr>
<td>
<code><pre>
[InvalidOperationException: A circular reference was detected while serializing an object of type 'System.Reflection.RuntimeModule'.]
System.Web.Script.Serialization.JavaScriptSerializer.SerializeValueInternal(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember) +1767
System.Web.Script.Serialization.JavaScriptSerializer.SerializeValue(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember) +166
System.Web.Script.Serialization.JavaScriptSerializer.SerializeCustomObject(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat) +793
答案 0 :(得分：0)
JSON序列化程序不支持的对象层次结构中的循环引用。
你需要有类似的东西：
return Json(new {
PropertyA = data.PropertyA,
PropertyB = data.PropertyB,
PropertyC = data.PropertyC,
}, JsonRequestBehavior.AllowGet);
答案 1 :(得分：0)
我用下面的代码解决了这个问题
public async Task<JsonResult> GetAll(int id)
{
using (Context context = new Context())
{
var menus = context.GetAll(id);
List<MenuView> menusView = Mapper.Map<List<Menu>, List<MenuView>>(menus);
//Solve circular reference on JSONResult
var result = JsonConvert.SerializeObject(menusView, Formatting.Indented,
new JsonSerializerSettings
{
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
});
return Json(result, JsonRequestBehavior.AllowGet);
}
}
我在我的控件中添加了此代码，在客户端我使用JSON.parse（）作为make对象。