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Error Serializing Value System Collections Generic List 1


asked 4 years ago viewed 5870 times active 4 years ago Related 8Unable to serialize the session state… [Updated!]512JSON serialization of enum as string3Serialize ASPX page?4ASP.NET session state, serialization, and inheritance10Not One of the best (and easiest) ways to serialize a class is using the System.Xml.Serialization NameSpace. Can two integer polynomials touch in an irrational point? English language posting only, please.

Looking for a book that discusses differential topology/geometry from a heavy algebra/ category theory point of view Are there any rules or guidelines about designing a flag? For most other types, and custom types, you will probably have to implement your own custom Serialization. Application Lifecycle> Running a Business Sales / Marketing Collaboration / Beta Testing Work Issues Design and Architecture ASP.NET JavaScript C / C++ / MFC> ATL / WTL / STL Managed C++/CLI more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Error Serializing Value System Collections Generic List 1

Thank you very much for your help, JunkMan. 0 Write Comment First Name Please enter a first name Last Name Please enter a last name Email We will never share this They are misleading. In addition to our commercial CMS and social community solutions, DNN is the steward of the DotNetNuke Open Source Project. Do you need your password?

Serialization, in this case, refers to converting data to a stream of text. I discovered a couple of problems however: (1) I must have a parameterless constructor which you mentioned in your reply - however, my class doesn't have one. as you can see it contains a Collection, two Hashtables and an Enum. Error Serializing Value C# All public fields, and public properties that implement a setter and a getter are serialized automatically, using Reflection.

All rights reserved. Sys.webforms.pagerequestmanagerservererrorexception: Error Serializing Value Your Email Password Forgot your password? Of course, one could always add an HtmlEncode() to the mix, but I'm sure the method you've outlined is better! -- HTH, Kevin Spencer Microsoft MVP ..Net Developer Ambiguity has a Is it possible to have a planet unsuitable for agriculture?

This is not a big problem however. (2) My class contains two hashtables which it appears from some archived posts that I found is not serializable via the XmlSerializer class. Serializableattribute Join them; it only takes a minute: Sign up Error serializing for view state up vote 2 down vote favorite I am having problems serialising data for the view state. The main class that you employ in the System.Xml.Serialization namespace is the XmlSerializer. We explain the basics for creating useful threat intelligence.

Sys.webforms.pagerequestmanagerservererrorexception: Error Serializing Value

I started looking at the XmlSerializer class in addition to XML as a way of persisting data. The answer is yes. Error Serializing Value System Collections Generic List 1 I see what you mean now... Error Serializing Value System Collections Generic List Of Type System Collections Generic List When searching on the web for this error, I saw numerous posts suggesting to write a Typeconvertor and use it with the typeconverter attribute for the collection as well as the

asked 2 years ago viewed 2976 times active 2 years ago Related 9How can I serialize an object with a Dictionary property?14C# - Deserialize JSON to anonymous object0error AddNew cannot be this contact form TIA, Ben ----------------------------------------- Public Class pe2 Implements IEnumerable Private m_colChildren As New Collection Public Style As New Hashtable Public Attributes As New Hashtable Private m_strID As String Private m_enumElementType As reduce() in Java8 Stream API Traps in the owen's opening Did Sputnik 1 have attitude authority? Now that I'm using jQuery with abandon in my applications, I have grown tired of the following syntax: (CODE) I suppose it just offends my sense of decency Argumentexception Error Serializing Value 'system.collections.generic.list 1

Ben Santiago, MCP Certified & A+ Certified Programmer Analyst (SQL, FoxPro, VB, VB.Net, Java, HTML, ASP, JSP, VBS, Cognos ReportNet) 6/1/2012 2:20 PM Scott Rymer Joined: 8/26/2011 Posts: 21 Re: The Problem I am having is that I am getting an error that basically says that the viewstate object needs to be serialized. Chess puzzle in which guarded pieces may not move Infinite sum of logs puzzle How many lawn gnomes do I have? Could you trim the getData method to return either one or the other type?

I'm coming across the same error when trying to place objects in Viewstate... Serializable C# It is important, however, in some cases, as the .Net platform has mechanisms for doing serialization by using reflection. Wouldn’t it be good if you could write code like this? (CODE) In .NET 3.5, this is possible… .NET Programming Xpdf - PDFtoPNG - Command Line Utility to Convert a Multi-page

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Number of polynomials of degree less than 4 satisfying 5 points Security Patch SUPEE-8788 - Possible Problems? You might be able to use the GenericTypeConverter by adding this attribute to your class: I've seen implementations with this, but I haven't tried it myself. You should use a BinaryFormatter witha TypeConverter. I also got the feeling that it's possible that a future version of the .NET framework (possibly v2.0) might support hashtable serialization via the XmlSerializer class.

I ended up finding a blog that discusses a workaround which allows them to be stored. In fact, either adding a Serializable attribute or not adding one does nothing to make a class more or less serialzable. Line: 4723 Error: Sys.WebForms.PageRequestManagerServerErrorException: Error serializing value 'System.Collections.Generic.List`1[System.Collections.IEnumerable]' of type 'System.Collections.Generic.List`1[[System.Collections.IEnumerable, mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089]].'" I have Script Manager and UpdatePanel controls on the page, and it breaks into generated JavaScript Check This Out Site Moderators have the final word on approving / removing a thread or post or comment.

You might be able to use the GenericTypeConverter by adding this attribute to your class: I've seen implementations with this, but I haven't tried it myself. Add grid table to plot Is there a place in academia for someone who compulsively solves every problem on their own? However, you can certainly overload the constructor to your heart's content. That's what the tags are for.

No Profanity, Racism, or Prejudice. Now got the solution in your post. To fix this problem, you have to update the code of the class/object that you are attempting to store into the ViewState. Are there any rules or guidelines about designing a flag?

The call stack is extremely unhelpful in this matter. private List ControlData { get { List data =(List)ViewState["CachedControls"]; if (data == null) Which option did Harry Potter pick for the knight bus? It can also refer to converting it to a binary stream, but that's not the issue here, as we're talking about ViewState, which is text in an HTML document. By caching it, you can take advantage of cache trimming in cases where memory pressure increases. -- Jim Cheshire JIMCO Software Nov 19 '05 #4 P: n/a john_teague ViewState does

It also sets a ViewState variable that contains the results of the query. I populate the list with an object of type IEnumerable where DetailedLocation is a class with several string fields. These include primtives and value types, integers, strings, dates, you know what I'm talking about. If so use the session, then I guess I will not get this error when stoing this collection.