Using modem in c#

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Framework
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
  - 1
    - Extended MAPI with C# - how to retrieve outlook appointment Hey Guys Any one know how can I how to retrieve outlook appointment using Extended MAPI with C#. Tag: Using modem in c# Tag: 131836
  - 2
    - Help IIS Identity Crisis I have a web application (.Net 2.0, IIS 6 Windows 2003) that uses an unprivileged user as the identity for the application pool. IIS requires the user have the "log on as a batch job" right. My web application calls a WCF MSMQ service and uses a certificate for authentication (not encryption as this is a workgroup server). Unfortunately, the application cannot find the certificate and throws an exception. I believe this to be because IIS is doing a "log on as a batch job" and the user's certificate store is not available. As soon as I open a command shell "runas" the user, the user's profile is loaded, the certificate store is available and I can successfully send an authenticated request to my WCF service. I'm happy I finally managed to establish why this was working sporadically: Step 1 - send request to web service; fails because can't find certificate Step 2 - open MMC "runas" IIS application pool identity to check certificate exists Step 3 - yep, it's there alright Step 4 - oh, now my application works, WTF Is there some way to require IIS to load the application pool identity profile? Tag: Using modem in c# Tag: 131816
  - 3
    - MVC Framework Hello all, I've been searching for a video I found a while back which showed a MVC style framework which was used to seperate the business logic from the UI. This made it possible to use the exact same logic in both asp.net and WPF. I had thought that this was a video showing Microsoft developers showing off the technology but now I'm not sure as I can't find the video again. I would really like to know if anyone knows what this framework was or where this video is as I have spent many hours now trying to find it again. The only details of it that I can remember is that it was an MVC style framework and that the example in the video was using asp.net. I also remember there being View and Controller interfaces used along with it. Tag: Using modem in c# Tag: 131806
  - 4
    - Thread safety of events Hi, I have an object O1 that executes code in thread T1. O1 raises events. There is an object O2 that runs in thread T2. O2 catches O1's events. Question: What happens if O2 is detaching the event handler at the same time as O1 is raising the event? Do I have to handle this special situation explicitly? Honestly I haven't read/heard that anybody ever cared about this. It would be pretty much work to do because every event handling object would have to prevent the event raiser from raising the event while detaching it's own handlers. Not a good OO way also. I know the "instance members are not thread safe" part of the Delegate/Multicastdelegate documentation, but I also think that Events are a basic element in the runtime's infrastructure, so maybe I don't have to handle the situation explicitly? Armin Tag: Using modem in c# Tag: 131797
  - 5
    - Maintain list of attached event handlers (.Net 1.1) Hi, here's the short version: How can I remember which event handlers did I attach to which events? Background: - I have an object tree. There is one root object, containing sub objects, containing sub objects, and so on. All the objects in the tree can raise events. - In a Form's Load event, I recursively process the object tree and attach event handlers to all the events of the objects in the tree. - Whenever an event fires, I detach the event handler. (because it won't fire twice) - When the Form closes, maybe not all events have been fired. Therefore, there are still event handlers attached to these events. My goal is: I must detach the remaining event handlers when closing the Form. Question: How do I know which event handlers are still attached? I thought I simply could maintain a list of attached event handlers. Whenever an event fires, I detach the event handler and remove the corresponding entry from the list. So, if the Form closes, I only have to process the list in order to detach the remaining handlers. But, /what/ do I have to store in the list? I didn't find a way without using Reflection. Thanks for reading! Armin Tag: Using modem in c# Tag: 131789
  - 6
    - Do Not Show Property? I have a public property with this attribute decorating it: [System.Xml.Serialization.SoapIgnoreAttribute] but when I convert an object to XML (it inherits from System.Data.DataTable), it still shows as a Property in the raw XML. Why does it do this and how can I make it stop? I don't want any properties to exist in the XML, just the rows from the DataTable. Thanks. Tag: Using modem in c# Tag: 131787
  - 7
    - Running out of Sockets I am working on a .Net Web Service which will be used by thousands of users at a time. It does lot of file operations (Creating, deleting, enumerating, reading attributes etc) and Ldap queries to AD using .Net APIs. Under stress test, service machine runs out of Sockets and we start seeing weird errors. I created MaxUserPort entry in registry on service machine toa llow 65,500 max no. of sockets to be created. It runs fine now. It could be a problem later during more stress in production. Is there a way in .Net to minimize socket usage during file and ldap AD operations? Is there a way i can force the machine to recycle the sockets so it never runs out of socket. Thanks, Salim Ansari Tag: Using modem in c# Tag: 131781
  - 8
    - Perfect Singleton with Semaphore? Can anyone show a code sample of a "perfect Singleton" that uses the Semaphore class in Framework 2.0? I have a security-related class that I would like to code as a Singleton, and re-use it in both ASP.NET and WinForms. I understand that these are very differnet environments when it comes to threading and etc, so any/all help is appreciated. Thanks. Tag: Using modem in c# Tag: 131780
  - 9
    - Remoting: Number of server activated objects Hi, for a license model I need to count the objects that are activated at the server. The class at the server is registered with: RemotingConfiguration.RegisterActivatedServiceType(GetType(Class1)) I need the number of objects of Class1 that are activated at the server? Is this possible? Thanks Tag: Using modem in c# Tag: 131778
  - 10
    - RS232: How to set rts=tg and xon=off I'm developing an interface application for existing multiport direct connect modem ports (RS232) that require setting rts=tg (toggle) while keeping xon=off. The environment is VB in VS2005. I would like to use the System.IO.Ports.SerialPort class but the only handshaking I see that comes close is Handshake.RequestToSendXOnXOff (3) and that uses xon=on. The RtsEnable is a boolean that represents on|off. Rts is actually 2 bits and can be set to [on|off|hs|tg]. Am I totally missing something or do I have to fall back to the Win32 API? Tag: Using modem in c# Tag: 131774
  - 11
    - XML Serialization at Design Time I'm still using XML Serialization at Disign Time. All the deserialized objects forgiveness their attributes like [Browsable(false)] How can I restore attributes into Deserialized object?? I'm using Visual Studio SP1 with Framework 2.0 Thanks Tag: Using modem in c# Tag: 131772
  - 12
    - XML Serialization Design Time I'm still using XML Serialization during Design Time. All the deserialized objects forgiveness their attributes like [Browsable(true)] How can i restore attributes into deserialized object?? I'm using Visual Studio 2005 SP1 and Framework 2.0. Best Regards Tag: Using modem in c# Tag: 131771
  - 13
    - DateTime.ParseExact mit Wildcards Hallo, gibt es mit DateTime.ParseExact eine Möglichkeit Wildcards zu verwenden? Beispiel: "20071007abcd123100" soll geparst werden, wobei "abcd" beliebige andere 4 Zeichen seien können. Ich denke also an so etwas wie: DateTime.ParseExact("20071007abcd123100", "yyyyMMdd????HHmmss", null); Hat da jemand eine Idee? danke & ciao Torsten Tag: Using modem in c# Tag: 131758
  - 14
    - Temporary Files And Permissions Hello, I have been struggling quite a bit with a problem that cannot possibly be this difficult to get past. The full scenario, is that I want to get a file from our Visual SourceSafe database, run a parser on it (translates an SQL dialect) and check it into another location. Now the SourceSafe and translation bit of all this works like a charm, but handling the temp files don't. The basic structure (first cut) looks like this: private void button3_Click(object sender, EventArgs e) { IVSSItem itemSybase = dataBase.get_VSSItem(comboSybasePath.Text, false); IVSSItem itemSQL = dataBase.get_VSSItem(comboSQLPath.Text, false); string pathSybase = Path.GetTempFileName(); string pathSQL = Path.GetTempFileName(); FileInfo fileSybase = new FileInfo(pathSybase); FileInfo fileSQL = new FileInfo(pathSQL); try { itemSybase.Get(ref pathSybase, (int)(VSSFlags.VSSFLAG_REPREPLACE | VSSFlags.VSSFLAG_FORCEDIRYES)); itemSQL.Checkout("Automatic conversion from Sybase", pathSQL, (int)(VSSFlags.VSSFLAG_REPREPLACE | VSSFlags.VSSFLAG_FORCEDIRYES)); try { ConvertStoredProc(fileSybase, fileSQL); itemSQL.Checkin("Automatic conversion from Sybase", pathSQL, 0); } catch { itemSQL.UndoCheckout(pathSQL, 0); throw; } } finally { fileSybase.Delete(); fileSQL.Delete(); } } Essentially, I get the temp file names with Path.GetTempFileName() and let SourceSafe overwrite the first file. I then use FileInfo objects to process the source text, write the destination file and finally delete both files once the destination file has been checked into SourceSafe. What perplexes me no end, is the fact that I can create the temporary files without a hitch, but deleting them again causes a SecurityException to be thrown. Why can I not delete a file that I was able to create? I then tried to specify FileIOPermission on my application, but the same is then used on the imported assembly for SourceSafe. And since I don't actually want to access anything other than the temp folder, I really want to specify Path.GetTempPath() as the path to get permission to - where do I do that? Finally, I thought I would use isolated storage, but again ran into trouble. Unless I missed it somehow, you cannot actually get the name of the file path you are working with - which means that I cannot specify that path for SourceSafe to use! Right now, it almost seems like the most reliable way of doing this will be to simply leave the temp files, but that is messy. Any ideas? Cobus Kruger Tag: Using modem in c# Tag: 131756
  - 15
    - Using different configurations (web.config, app.config) Hello there, is there a possibility to use different configurations for debug and release mode? I need other settings in debug mode than in release mode but do not want to replace the web.config all the time manually. Regards, Norbert Tag: Using modem in c# Tag: 131754
  - 16
    - Question about return 0 in Socket::EndSend in C# I have written a program that is using Async Socket, And the program will send a lot of packet to the socket, and i used BeginSend and EndSend for sending the data. But the werid thing is that, sometime, the EndSend return 0, so it implies that 0 byte of data have been sent, so the my program will try to do the BeginSend again and try to send the data again, but the result is that the other side will receive 2 same packets. So what is wrong with it? Thanks Tag: Using modem in c# Tag: 131750
  - 17
    - save web page as ppt hi i need to allow a user to save a web page as a ppt file. i built the site. this site shows a schematic of a vehicle. i want to put a button on the page that will allow the user to save the page as a power point slide. Tag: Using modem in c# Tag: 131743
  - 18
    - Great new development community concept I found this new site I am excited about http://www.spikesolutions.net. The concept, zip up your programming solutions and submit them to this site for free. Each time someone downloads your solution you get $1.00. The creators of the site are trying to improve the quality and availability of "spike solutions" by rewarding developers with cash for submitting their solutions. I would like to hear your thoughts. Tag: Using modem in c# Tag: 131741
  - 19
    - Can ternary conditional expressions be represented in the CodeDOM? ... I know I could use a CodeSnippetExpression to do it, but that would somewhat hardcode the resulting tree. I was looking for something like: CodeTernaryExpression( CodeExpression test, CodeExpression trueExpression, CodeExpression falseExpression); Which would, of course, get turned into the corresponding: (test ? trueExpression : falseExpression) expression in C#, C++, or even J# (I believe). I guess it's only VB.NET that doesn't have a ternary expression but I don't know for sure. I know, I know, for generated code there's no real reason to use a ternary expression, but coding habits are hard to break, even when writing meta-code :-) Regards, -- TB Tag: Using modem in c# Tag: 131740
  - 20
    - A list of people in an active directory group. I am using System.Security.Principal to identify clients and allow functionality based on the groups they belong to. In one case I would like to let them know who can do the function they cannot. How do I list the members of a group? Thanks Tom Tag: Using modem in c# Tag: 131739
  - 21
    - Problem with SslStream when using Windows Vista Hi. When my client program runs under XP and calls a server (solaris in this case) via an SslStream all is well. The client may make multiple calls and multiple authentication calls and be fine. I expressly "clean up" everything streamwise and socketwise and all is well. Running the client under Vista, when the second authentication call is made it returns the following SSPI error: "A call to the SSPI failed, see inner exception" which reads "the Local Security Authority cannot be contacted" Well that was pretty mystifying so I looked at what was going on with ethereal. Apparently, on the second authentication go-round Vista asks the server to re-use a session Id. The server responds and then Vista rejects a re-used session Id (even though it asked to do that). What I have found out is that the .net framework caches SslStream sessions automatically, I have not found any way to turn this off for Vista - any ideas on how to do this or to get Vista to use the cached SessionId which it requested? Here is a link to a sample that seemingly generates the same flaw that I have described. http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1222194&SiteID=1 Thanks Dave Tag: Using modem in c# Tag: 131731
  - 22
    - DataMemberAttribute Can a Dictionary<Tkey, Tvalue> DataMember in a DataContract holds objects with different types? Tag: Using modem in c# Tag: 131728
  - 23
    - Terminate a child process when parent process is killed Hello, I'm using a C# application to create a process "A" to execute an .exe file. The problem is that when the application is killed (for example from task manager) the child process keeps on running. The question is how can i run the "A" process so that when my application is killed or crashes the child process "A" will be terminated? I'm using this code: Process A = new Process(); A.StartInfo.FileName = some_exe_path; A.Start(); Thanks in advance Tag: Using modem in c# Tag: 131724
  - 24
    - .NET Framework 2.0 for Windows XP SP1 I noticed on the Microsoft .NET Framework 2.0 download page that Windows XP SP1 is not a supported environment. Does this mean that the 2.0 Framework will not work on an XP system with only SP1 installed? The reason I ask is because I know someone who attempted to install the 2.0 Framework on three of his Windows XP SP1 computers, and each time the install completely froze his system, although, after rebooting, it turns out the Framework was installed successfully. Thanks - Amos. Tag: Using modem in c# Tag: 131722
  - 25
    - Windows Forms App as Console App Hi I want to start a Visual Basic Windows Form app from the console by specifying parameters (this is possible in C#), is i add the following method i get a error Public Sub Main(ByVal args As String()) Console.Write(args.Length) End Sub the above method works in a console app. can someone help in this regard TIA Barry Tag: Using modem in c# Tag: 131721
- Next
  - 1
    - Wrapper assembly - VS2005! Hi, I am trying to use a managed dll (does not have a strong name) in my app/dll which is signed. I get an error "Referenced assembly does not have a strong name". i tried using the tlbimp.exe to create a wrapper dll which has a strong name but get the error "TlbImp : error TI0000 : The input file 'xyz.dll' is not a valid type library.". Any ideas on how i can do this? is there an equivalent of the project property "Wrapper Assembly Key file in VS.Net" which i can use in VS2005. Thanks, - SA Tag: Using modem in c# Tag: 131720
  - 2
    - DataTable.Select with condition with Timespan values Hi to All, i'm using C# in .NET 2.0 and i have a DataTable A with a column of type TimeSpan used to store HOUR info. I'm trying to filter my DataTable A selecting only rows that have the column HOUR > .... if i try to Call A.Select( " HOUR > '10:30:00' " ) i receive an error ( cannot compare TimeSpan with String ...) if i try to call A.Select ( " HOUR > 10:30:00 " ) i receive an error ( invalid token : ) if i try to call A.Select ( " HOUR > Convert('10:30:00',System.TimeSpan) " ) i receive an error ( string '10:00:00' is not a valid TimeSpan ) if i try to call A.Select ( " HOUR > #10:30:00#" ) i receive an error ( Cannot compare TimeSpan with Date ) ... ... i think that i missed only the right way to write my filter. Can someone help me? Thank you in advance. Regards, Massimo Tag: Using modem in c# Tag: 131719
  - 3
    - Should be simple C++ managed header include question I have a split container on my form, from within one of them I wish to reach the main from of the app. I'm having problems with the headers and namespaces. I want something like this: //within right pane form ABCForm^ abcForm = (ABCForm^)Application::OpenForms["ABCForm"]; abcForm->ExecutePublicFunction(); If I include the main form header I get: 'ABCForm' : undeclared identifier 'abcForm' : undeclared identifier syntax error: ')' and many more.... The two forms are of the same namespace. if within the namespace I do this: namespace ABC{ ref class VPEForm; public ref class OtherForm : public Form { the line: ABCForm^ abcForm = (ABCForm^)Application::OpenForms["ABCForm"]; will compile without complaint. But then the line: abcForm->ExecutePublicFunction(); I get: use of undefined type : 'ABC:ABCForm' Like it sees the 'ref class VPEForm' as the complete definition of the class. So what's the proper way to reference the other form and handle the includes and namespace from another form? This should be simple I know... Thanks, Steven Tag: Using modem in c# Tag: 131718
  - 4
    - Hook Event for All Property Set? Can I have an example of wiring up an Event (handler) that can be fired no matter what property Set accessor is touched? I have a lot of get/sets on public properties and I would like to create something in the class constructor that would be automatically called whenever anything was Set. Thanks. Tag: Using modem in c# Tag: 131717
  - 5
    - MailMessage-Object error - net 1.1 , VS 2003 Hello, I have a simple program which sends emails. The main function is: private bool InitAndSendEmail(string mailTo, string subject, string txt, string mailFrom) { MailMessage myMail = new MailMessage(); try { myMail.From = mailFrom; myMail.To = mailTo; myMail.Subject = subject; myMail.Body = txt; string smtpServer = "mail.kybtec.de"; string userName = myMail.From; string password = "12345678"; int cdoBasic = 1; int cdoSendUsingPort = 2; myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserver", smtpServer); myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 25) ; myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusing", cdoSendUsingPort) ; myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", cdoBasic); myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", userName); myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", password); myMail.BodyEncoding = Encoding.UTF8; myMail.BodyFormat = MailFormat.Html; SmtpMail.SmtpServer = smtpServer; SmtpMail.Send(myMail); myMail = null; return true; } catch(Exception ex) { MessageBox.Show(ex.Message); return false; } } This works fine if I only send for example 10 emails. If I send for example (loop based) 300 emails the following happens. The first 100 emails are sent. Now I get the exception. 'Could not access CDO.Message object'. This is not a problem of the email server. Because: If I wait for example 1 hour, I can again send 100 or so emails then the error. Or I can boot the computer, then I can send 100 or so emails and then the error again. Seems that there is something locked after a number of emails on the computer. Thank you for any help. Rolf Welskes Tag: Using modem in c# Tag: 131716
  - 6
    - Windowsservice needs to receive events What is a good way to have a windowsservice receive events? I want to change some settings of the service without restarting it (mainly log-level of log4net ). I thought about using MSMQ. The problem I see with it is: If the service is not startet messages are not consumed. regards Mathias Fritsch Tag: Using modem in c# Tag: 131714
  - 7
    - WPF Question. I'm not sure which is the right forum to post this question - so this is as general as can be. There question is about treeview in WPF: I'm trying to implement drag and drop in TreeViews, poking all sorts of options for their display. The code I'm based upon is Josh Smith's ListViewDragDropManager, and just converted it to manage treeviews, with almost all of the same code. The logics are all exactly the same, and the display is also from another project I saw recently. What I came across is just very weird: when I expand a TreeViewItem, then collapse it, the TreeViewItem thinks it's still expanded. all of the DragOver events come from the incorrect treeviewitem, which is ofcourse very bad. The best way to understand what I'm saying is to look at this test project, and do the following: 1. drag the first item around a little, see that you get all the normal behavior. 2. expand the first item. 3. collapse the first item. 4. try the drag operations again. notice how when you pass over items from the second row, the mouse thinks it's over the first row treeviewitem. solution is here(zip) : http://www22.brinkster.com/betzera/ohev/dev301/treeview%20dragger.zip 10x, Dani Tag: Using modem in c# Tag: 131712
  - 8
    - I just reveal that "Make single instance Application" has side affect if you use with Enable Application Framework, and check the option "Make single instance Application" you can suprise to know that this option Register tcp Chanel. So if you meant to register one by tour self, your program give Error that you cant do it twice. Any MPV to tel us why, and how? (according my test, the "Make single instance Application" not prevent multi instance on multi session on Terminal server. so why this option not check by process name?) Tag: Using modem in c# Tag: 131707
  - 9
    - Is this thread safe? public void WriteToLog(string message) { StringBuilder bld = new StringBuilder(); bld.AppendFormat(null,"{0} {1}", DateTime.Now.ToString("yy- MM-dd hh:mm:ss"),message); StreamWriter sw = File.AppendText(m_LogFile); sw.WriteLine(bld.ToString()); sw.Flush(); sw.Close(); } MSDN says all static members in System.IO are thread safe, but here an object of type StreamWriter is created from AppendText and I'm not sure...... Do I need critical section or not? Thanks! Tag: Using modem in c# Tag: 131702
  - 10
    - V C++ .NET version 2003.Compiler problem. V C++ .NET version 2003.Compiler problem. My compiler is acting up. When I have building error, the left margin pointer will point to the wrong line. Sometimes, the deferent between the line that has the error and the line it pointed to can be more than twenty lines. Sometimes, It will give error message for something that I commented (//). As soon as I delete the commented line, the building error will disappear . I uninstalled the compiler and install it again: I still have the same problem. I used to have version 2005, I Uninstalled it and I still have the same problem. I recently installed the service pack recommended for this compiler. I wonder if any body has experienced something like this, before. Or anybody has an idea; what is the reason for that and how can I fix this problem; I would appreciate it. I recently installed the service pack recommended for this compiler Tag: Using modem in c# Tag: 131701
  - 11
    - operator overloading I have 2 objects which could be of any type (but both are of same type) I would like to check if it has the "greater than" or "less than" operator overloaded. If it does, then i would like to compare the 2 objects using the operators. Is this possible to do? In general, i am solving this problem, "If 2 objects can be compared, return their comparison value". I can check if they implement IComparer/IComparable but i don't know how to proceed after that. Tag: Using modem in c# Tag: 131694
  - 12
    - Limit of C# versus languages like Java? There's tons of articles on the net that say that java works on solaris, windows, mac etc. Does this mean Microsoft's C# is limited to Windows? But if not, what limits does it have? Would everyone need the .NET Redist. to run WEB applications? Is it any faster? Tag: Using modem in c# Tag: 131689
  - 13
    - Unknown Properties in ASPX Pages Hi I have a aspx page which has the following properties (xat-???) , i get an error on my local system, but its okay on the clients website. xat-href="http://www.????.com/ShowAd.aspx?id=<%# Eval('id') %>" xat-href-val="http://www.????.com/ShowAd.aspx?id=<%# Eval('id') %>" xat-src="http://www.????.com/upload/{PreviewImageId}.Md.jpg" xat-src-val="http://www.????.com/upload/45.Md.jpg" does anyone know where these properties are comming from. TIA Barry Tag: Using modem in c# Tag: 131686
  - 14
    - Machine locks up running app off network I have a .NET application that is run off of a shared network drive. About 5 users (out of 100) periodically have their entire machines deadlock when they try to run the application. I was able to reproduce the issue a couple times on one of the user's machines. One time I had the Task Manager open when I launched the app and the Task Manager also stopped responding (ctrl-alt-delete did nothing either) I tried re-installing the .NET Framework, but I was still able to get the machine to lock up when I launched the application. I also tried running the application locally and was not able to get the machine to lock up though this is not an ideal solution. The reason we run it from the shared drive is so that we do not have to distribute updates to every user. I did some research and read about how deadlocks can occur in mixed- mode dlls if you try to run managed code in the DllMain of the unmanged code, but we do not have any unmanaged code in our app. Even if we did, that would only deadlock the process it is running in and not the whole machine, correct? It seems like the machine is deadlocking when the CLR is loading the application but before it starts executing b/c the splash screen for the app isn't shown before the machine stops responding. Does anyone have any ideas on what could be causing this behavior? Tag: Using modem in c# Tag: 131684
  - 15
    - BUG? XmlSerializer serializes List<> { get; } property twice [LONG Framework: .NET 2.0 Description: The code (see below) is an extract of a larger application. The main points are: 1. There ist an abstract base class 2. This class has a virtual List<> { get; } property 3. The property is decorated with XmlArrayItem attributes 4. A class derives from the base class 5. This class overrides the List<> property 6. There is an identical (for the sample code, not in real life) other class deriving from the abstract base class 7. The XmlSerializer gets both derived types as extraTypes in the constructor One of the derived classes serializes correctly the other gets the List<> property serialized twice. Actually this behaviour is much more strange: 1. If another (equal) derived class is added this shows that only the FIRST extraTypes[] class is serialized correctly, all others got duplicate members 2. When the List<> is replaced by an Array [] { get; set; } there seems to be no problem Is this a known bug and especially is there a known work-around? Regards Jochen ############### SAMPLE CODE OUTPUT, ERROR IN C2 / D2 ######## .... <?xml version="1.0"?> <B xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w 3.org/2001/XMLSchema"> <All> <A> <All /> </A> </All> </B> <?xml version="1.0"?> <C xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w 3.org/2001/XMLSchema"> <All /> </C> .... <?xml version="1.0"?> <B2 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www. w3.org/2001/XMLSchema"> <All /> </B2> <?xml version="1.0"?> <C2 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www. w3.org/2001/XMLSchema"> <All> <A2> <All /> </A2> </All> <All> <A2> <All /> </A2> </All> </C2> <?xml version="1.0"?> <D2 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www. w3.org/2001/XMLSchema"> <All> <A2> <All /> </A2> </All> <All> <A2> <All /> </A2> </All> </D2> ######### SAMPLE CODE ############### using System; using System.IO; using System.Xml; using System.Text; using System.Xml.Serialization; using System.Collections.Generic; namespace StrangeSerializer { public class A { [XmlArrayItem(typeof(A))] [XmlArrayItem(typeof(B))] [XmlArrayItem(typeof(C))] public virtual A[] All { get { return new A[0]; } set { } } } public class B : A { public override A[] All { get { return new A[] { new A() }; } } } public class C : A { public override A[] All { get { return new A[0]; } } } public class A2 { private List<A2> m_List = new List<A2>(); [XmlArrayItem(typeof(A2))] [XmlArrayItem(typeof(B2))] [XmlArrayItem(typeof(C2))] [XmlArrayItem(typeof(D2))] public virtual List<A2> All { get { return m_List; } } } public class B2 : A2 { public override List<A2> All { get { return base.All; } } } public class C2 : A2 { public C2() { base.All.Add(new A2()); } public override List<A2> All { get { return base.All; } } } public class D2 : A2 { public D2() { base.All.Add(new A2()); } public override List<A2> All { get { return base.All; } } } class Program { static void Dump(A2 a) { XmlSerializer ser = new XmlSerializer(a.GetType(), new Type[] { typeof(B2), typeof(C2), typeof(D2) }); using (MemoryStream mem = new MemoryStream()) { ser.Serialize(mem, a); mem.Seek(0, SeekOrigin.Begin); using (StreamReader rdr = new StreamReader(mem)) Console.WriteLine(rdr.ReadToEnd()); } } static void Dump(A a) { XmlSerializer ser = new XmlSerializer(a.GetType(), new Type[] { typeof(B), typeof(C) }); using (MemoryStream mem = new MemoryStream()) { ser.Serialize(mem, a); mem.Seek(0, SeekOrigin.Begin); using (StreamReader rdr = new StreamReader(mem)) Console.WriteLine(rdr.ReadToEnd()); } } static void Main(string[] args) { Console.WriteLine("...."); Dump(new B()); Dump(new C()); Console.WriteLine("...."); Dump(new B2()); Dump(new C2()); Dump(new D2()); Console.ReadLine(); } } } Tag: Using modem in c# Tag: 131680
  - 16
    - ClickOnce Problem with .NET Framework Installation I have a C# application that I am distributing and updating via ClickOnce. I have the .NET Framework 2.0 as a prerequisite. On some computers, but not all, when the app is installed for the first time, and the Framework needs to be installed, the Framework installation piece will hang the user's computer. A reboot is normally required. What's odd about this is that the Framework has been installed successfully but the computer hangs up. Has anyone encountered this? Thanks very much. Tag: Using modem in c# Tag: 131679
  - 17
    - tcpclient in .net 2.0 Maybe someone has come across this situation and has a way to handle it. If I have a tcpClient object and do a GetStream.Read on it after setting a ReceiveTimeout, I'm getting different behavior in .Net 2.0 than in 1.0 when the method returns 0 bytes (which signifies a timeout). In both cases I get a System.IO.IOException , but in the 2.0 framework the socket also disconnects when this occurs (in 1.0 it did not disconnect). They have made some improvements in the tcpClient class, such as exposing the underlying socket, so I'd prefer to keep using tcpClients. Any idea how I can prevent this disconnect? Right now I'm checking DataAvailable and using Thread.Sleep as a workaround, but I'd prefer to do a blocking read call. Thanks, Keith Tag: Using modem in c# Tag: 131676
  - 18
    - ClickOnce Content Files I have a solution with multiple projects. One project is a windows forms project. I have report files (.rdlc) in a separate project that are built as "Content" with the "Copy Always" option. When I build the solution, these files are copied to the bin\Release directory, as they should be. However, when I publish the Windows Forms project, these content files are not copied. How can I make it so that these content files from the one project are published along with the windows forms project. They are not listed in the "Applications Files" section of the publish settings. Thank you... Tag: Using modem in c# Tag: 131675
  - 19
    - Migrate large .NET 1.1 app to 2.0 or 3.0 (ie, when will SP's ship? We're trying to decide whether to migrate a large .NET 1.1 (ELB 1.1) app to .NET 2.0 or 3.0 (with ELB 3.1, probably)... within the next two months. I've seen discussions that hint that the (long overdue) SP1 for .NET 2.0 will ship around the time that Orcas ships (early '08?). We could probably tolerate that if we migrate the app to 2.0 now. On the other hand, if we migrate to 3.0 now, when will SP1 for .NET 3.0 ship? Since 3.0 is purportedly an extension to 2.0, and isn't supposed to have changed the "core" of 2.0, would we be able to apply 2.0 SP1 to 3.0? But if the 2.0 SP1 doesn't also apply to 3.0, and the 3.0 SP1 will be even later (1.5+ years, as the 2.0 SP has proven to be), then there's no way we could consider migrating to 3.0 now... DT Tag: Using modem in c# Tag: 131672
  - 20
    - Images in DataList Hi In GridView there is <asp:ImageField > is there something similar to display images in DataList, i need to display images stored in a Database TIA Barry Tag: Using modem in c# Tag: 131671
  - 21
    - Control.Invoke() blocking forever if form closed whilst background task running In part of the system I am working on I have a background task (started with a call to BeginInvoke() on a delegate), which at some point needs to read a property from one of the controls on a form. Normally this all works great. The problem I am having is if the user closes the form whilst the background task is running. Execution blocks indefinitely on the call to Control.Invoke() and the method I supply to it never begins. The application's message queue doesn't seem busy and the UI is still responsive other than I have this thread sitting in the background, stuck on this call. I am calling Invoke() on a custom UserControl that has not yet been disposed. The stack trace to where it is blocking inside Invoke() shows up as the following... [In a sleep, wait, or join] mscorlib.dll!System.Threading.WaitHandle.WaitOne(long timeout, bool exitContext) + 0x2e bytes mscorlib.dll!System.Threading.WaitHandle.WaitOne(int millisecondsTimeout, bool exitContext) + 0x23 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.WaitForWaitHandle(System.Threading.WaitHandle waitHandle = {System.Threading.ManualResetEvent}) + 0xa1 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.MarshaledInvoke(System.Windows.Forms.Control caller, System.Delegate method, object[] args, bool synchronous) + 0x36d bytes System.Windows.Forms.dll!System.Windows.Forms.Control.Invoke(System.Delegate method, object[] args) + 0x48 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.Invoke(System.Delegate method) + 0x7 bytes I can get around the problem by replacing the Invoke() call with a BeginInvoke() and therefore being able to specify a timeout, but I'm curious as to why it's happening in the first place. Thanks Dave Tag: Using modem in c# Tag: 131670
  - 22
    - Windowsservice an Mapped Drive My service runs under a Domain Account mydomain\myuser. If I log into my system under this mydomain\myuser I have acces to a mapped drive x:\ which is mapped to \\mydomain\mymachine\myfolder. The service can acces \\mydomain\mymachine\myfolder but not x:\. A winform application which I start when logged in as mydomain\myuser has access to x. Any ideas? Mathias Fritsch Tag: Using modem in c# Tag: 131666
  - 23
    - Launching a "Fire and Forget" stored procedure Hello, I have an asp.net applicaiton and I woul like to add some logging features (not only for errors but even for user activities), my principal interest is to NOT decrease performance so I would like to launch some SQL Server 2005 stored procedures in a "Fire and Forget" way: the application launch the Stored Proc and continues without waiting ... Is it possible? How? Thanks! .:M.A:. Tag: Using modem in c# Tag: 131663
  - 24
    - "Enter network password" nuisance prompt... Any help would be much appreciated in the following problem. I subscibe to a european streaming TV website - while it worked flawlessly for months, all of a sudden this message began to pop up! Login still works, but the player freezes at the connecting to media stage, while waiting for the network password. All other internet functions work normally, and I don't have a network. Thank you Tag: Using modem in c# Tag: 131660
  - 25
    - Copy DataTable Rows Fast? .NET Framework 2.0 I have a custom class inherits from DataTable. It has a method to "get remote stuff" where it makes a web service call to a .NET 2.0 web service that executes a TableAdapter. Now I need to just get the data columns and rows from the TableAdapter into my lightweight class. I think I want to do something like RemoteTA.Call( param1 ).Rows.CopyTo My DataTable does not have any columns or rows to start. Thanks. Tag: Using modem in c# Tag: 131656

I am currently working on an application in c# that doesn't trust the
internet for its communication. Our company needs this software to connect
to another computer through modem and then send and receive data. Any
suggestion or helpful tutorials for this in c# ?

Thanks for any help!

Top

Re: Using modem in c# by Michael

Michael
Wed Jul 11 04:22:51 CDT 2007

Hello hmdz,

See there a sample http://www.codeproject.com/useritems/SerialComm.asp

---
WBR, Michael Nemtsev [.NET/C# MVP].
My blog: http://spaces.live.com/laflour
Team blog: http://devkids.blogspot.com/

"The greatest danger for most of us is not that our aim is too high and we
miss it, but that it is too low and we reach it" (c) Michelangelo

h> I am currently working on an application in c# that doesn't trust the
h> internet for its communication. Our company needs this software to
h> connect to another computer through modem and then send and receive
h> data. Any suggestion or helpful tutorials for this in c# ?
h>
h> Thanks for any help!
h>

Top

Re: Using modem in c# by Nicholas

Nicholas
Wed Jul 11 11:19:00 CDT 2007

Do they not trust currency either, using gold instead? =)

Sorry, I had to ask, given the statement "doesn't trust the internet",
given the myriad number of ways that one can secure communications over the
internet.

--
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard.caspershouse.com

"hmdz" <hmdz@hotmail.com> wrote in message
news:uQU5173wHHA.3796@TK2MSFTNGP04.phx.gbl...
>I am currently working on an application in c# that doesn't trust the
> internet for its communication. Our company needs this software to connect
> to another computer through modem and then send and receive data. Any
> suggestion or helpful tutorials for this in c# ?
>
> Thanks for any help!
>
>
>

Top