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如果已經提出了此問題，我表示歉意。我對asp.net的東西相當陌生，而且我搜索了一些東西，但是我找不到解決方案，能夠適用於我的情況 - 或者能夠以我知道的方式應用。在序列化 u0027ASP.global_asax類型的對象時檢測到循環引用
無論如何，這是問題所在。
我正在爲學校建設一個項目。許多設置和代碼已經提供給我們。我們以以下格式構建asp.net web表單項目開始。
模型 的ViewModels 網站
模型是與ADO.Net數據對象的類庫。查看模型由與模型類交談的類組成，網站與ViewModels交談。非常坦率的。
在模型中，我們正在序列化所有內容 - 包括一個實體。下面是序列化
public static byte[] Serializer(Object inObject, bool bIsEntity = false)
{
byte[] ByteArrayObject;
if (bIsEntity == true)
{
MemoryStream strm = new MemoryStream();
var serializer = new DataContractSerializer(inObject.GetType());
serializer.WriteObject(strm, inObject);
ByteArrayObject = strm.ToArray();
}
else
{
BinaryFormatter binFormatter = new BinaryFormatter();
MemoryStream memStream = new MemoryStream();
binFormatter.Serialize(memStream, inObject);
ByteArrayObject = memStream.ToArray();
}
return ByteArrayObject;
}
的代碼，代碼基本上只是連載一本字典，與實體 - 實體被單獨序列化，那麼整個事情。
我們基本上只是調用一些get方法並獲取數據對象。這一切都工作。
我們還使用一些jquery ajax方法調用來檢索模態的信息。所以，在網站的aspx.cs文件中，我們有這個..
[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod(ResponseFormat = System.Web.Script.Services.ResponseFormat.Json)]
public static EmployeeViewModel GetEmployee(int empID)
{
EmployeeViewModel emp = new EmployeeViewModel();
emp.GetByID(empID);
return emp;
}
在那種格式下工作正常。有一個Ajax調用該函數，一切都完美。有問題的員工出現。
之後，我們基本上採用了這些代碼並創建了一個新的解決方案。在該解決方案中，我們現在有三個其他項目（4，但我們現在只使用3個 - 我們即將推出一個服務器項目）。它們分別是：
WCF服務 的ViewModels 網站
一切工作正常，直到Ajax調用。我知道GetByID方法有效，因爲我從網站項目中的單獨驅動程序調用它並打印出結果。在調用ajax函數時，我不斷收到javascript中的序列化錯誤。我們實際上有三種不同的解決方案 - 有電話，員工和問題。問題部分工作正常。它只有一些數據庫項目。 Employees和Calls都在上面提到的解決方案中工作，但是當我包含WCF時它們不起作用。
我得到的錯誤如下。首先我要給你一些其他可能很重要的方法。
這是在ModelServices（WCF服務）項目
public byte[] GetByID(int empID)
{
Dictionary<string, Object> retDict = new Dictionary<string, Object>();
try
{
HelpdeskDBEntities dbContext = new HelpdeskDBEntities();
dbContext.Configuration.ProxyCreationEnabled = false;
Employee EmployeeEntity = dbContext.Employees.FirstOrDefault(emp => emp.EmployeeID == empID);
if (EmployeeEntity != null)
{
retDict["firstname"] = EmployeeEntity.FirstName;
retDict["lastname"] = EmployeeEntity.LastName;
retDict["phoneno"] = EmployeeEntity.PhoneNo;
retDict["email"] = EmployeeEntity.Email;
retDict["departmentid"] = EmployeeEntity.DepartmentID;
retDict["employeeid"] = EmployeeEntity.EmployeeID;
retDict["title"] = EmployeeEntity.Title;
retDict["staffpicture"] = EmployeeEntity.StaffPicture;
retDict["entity"] = HelpdeskModelUtils.Serializer(EmployeeEntity, true);
}
else
{
retDict["error"] = "Employee Not Found";
}
}
catch (Exception ex)
{
HelpdeskModelUtils.ErrorRoutine(ex, this.GetType().Name, HelpdeskModelUtils.GetCurrentMethod());
retDict["error"] = ex.Message;
}
return HelpdeskModelUtils.Serializer(retDict);
}
這是在WCF服務項目
public static byte[] Serializer(Object inObject, bool bIsEntity = false)
{
byte[] ByteArrayObject;
if (bIsEntity == true)
{
MemoryStream strm = new MemoryStream();
var serializer = new DataContractSerializer(inObject.GetType());
serializer.WriteObject(strm, inObject);
ByteArrayObject = strm.ToArray();
}
else
{
BinaryFormatter binFormatter = new BinaryFormatter();
MemoryStream memStream = new MemoryStream();
binFormatter.Serialize(memStream, inObject);
ByteArrayObject = memStream.ToArray();
}
return ByteArrayObject;
}
public static Object Deserializer(byte[] ByteArrayIn)
{
BinaryFormatter binFormater = new BinaryFormatter();
MemoryStream memStream = new MemoryStream(ByteArrayIn);
Object returnObject = binFormater.Deserialize(memStream);
return returnObject;
}
這是視圖模型方法的串行器和解串方法
public void GetByID(int empId)
{
try
{
EmployeeServiceReference.EmployeeModelServiceClient model = new EmployeeServiceReference.EmployeeModelServiceClient();
Dictionary<string, Object> dictionaryEmployee =
(Dictionary<string, Object>)HelpdeskViewModelUtils.Deserializer(model.GetByID(empId));
if (!dictionaryEmployee.ContainsKey("error"))
{
_firstName = (string)dictionaryEmployee["firstname"];
_lastName = (string)dictionaryEmployee["lastname"];
_title = (string)dictionaryEmployee["title"];
_departmentID = (int)dictionaryEmployee["departmentid"];
_phoneno = (string)dictionaryEmployee["phoneno"];
_email = (string)dictionaryEmployee["email"];
_entity = (byte[])dictionaryEmployee["entity"];
_employeeID = (int)dictionaryEmployee["employeeid"];
}
else
{
_lastName = "error";
}
}
catch (Exception ex)
{
HelpdeskViewModelUtils.ErrorRoutine(ex, this.GetType().Name, HelpdeskViewModelUtils.GetCurrentMethod());
throw new Exception(ex.Message);
}
}
這是在的ViewModels串行器和解串器項目
public static byte[] Serializer(Object inObject)
{
BinaryFormatter binFormatter = new BinaryFormatter();
MemoryStream memStream = new MemoryStream();
binFormatter.Serialize(memStream, inObject);
byte[] ByteArrayObject = memStream.ToArray();
return ByteArrayObject;
}
public static Object Deserializer(byte[] ByteArrayIn)
{
BinaryFormatter binFormater = new BinaryFormatter();
MemoryStream memStream = new MemoryStream(ByteArrayIn);
Object returnObject = binFormater.Deserialize(memStream);
return returnObject;
}
這裏是我的ajax調用和相關的JavaScript的東西
function getEmployeeInfoForModal(empID) {
$.ajax({
type: "POST",
url: "Employees.aspx/GetEmployee",
data: "{empID :" + empID + "}",
contentType: "application/json; charset-utf-8",
success: function (data) {
copyEmployeeInfoToModal(data.d);
},
error: function (data) {
alert('problem getting server data' + data.responseText);
}
});
}
function copyEmployeeInfoToModal(emp) {
.........do stuff - never gets here
}
錯誤我不斷收到以下錯誤。這是一個很長的錯誤，所以我要保持在一條線上。
problem getting server data{"Message":"A circular reference was detected while serializing an object of type \u0027ASP.global_asax\u0027.","StackTrace":" at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValueInternal(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValue(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeCustomObject(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValueInternal(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValue(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeCustomObject(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValueInternal(Object o, StringBuilder sb, Int3...\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValue(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeCustomObject(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValueInternal(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.SerializeValue(Object o, StringBuilder sb, Int32 depth, Hashtable objectsInUse, SerializationFormat serializationFormat, MemberInfo currentMember)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, StringBuilder output, SerializationFormat serializationFormat)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, SerializationFormat serializationFormat)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj)\r\n at System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary`2 rawParams)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.InvalidOperationException"}