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  - 1
    - Can return GenericPrincipal from Web Services? Hi, Can I return GenericPrincipal from Web Services? The following error displays when I try to return GenericPrincipal from Web Services. System.Security.Principal.GenericPrincipal cannot be serialized because it does not have a default public constructor. Thanks. Tag: dotnet supported OS and languages Tag: 80853
  - 2
    - Netscape problem Hi, I have a problem with Netscape. I am using javascript to pass values and redirecting to the same place. it works fine in IE and not in netscape. please suggest. function popup(WardrobeSet) { document.forms(0).action = "WardrobeSet.aspx?WardrobeSet=" + WardrobeSet; document.forms(0).submit(); } Please Advice, Stephen. Tag: dotnet supported OS and languages Tag: 80846
  - 3
    - Calling base implementation from base class? Is there a way to call a base class implementation of a protected method when Here's the scenario: class MyApp { public static Main() { D obj=new D(); obj.Method1(); } } class B { protected void Method1() { } protected void Method2() { //I want to call B's implementation of Method1 even though I'm running as D's implementation of Method2; //conceptually I want to do: this.base.Method1(); } } class D : B { override protected void Method1() { Method2(); } } Is this doable? TIA </joel> Tag: dotnet supported OS and languages Tag: 80842
  - 4
    - Parallel Installation of .Net Framework 1.1 and 2.0 possible? Hi, Is it possible to have both Framework Versions installed on a sinlge Machine? I couldn't find any information on this @ the MS site. Thanks in advance, Matthias Tag: dotnet supported OS and languages Tag: 80831
  - 5
    - SaveFileDialog - get the remembered path before displaying. OK. Whenever you display a SaveFileDialog it automatically displays the last folder you were in the last time a save was done. Is there a way you can get that folder before displaying it? I can't see anything. The InitialDirectory and FileName properties are "" when you start out. But then when you display the dialog, it knows the last place. Is there a way to get it before displaying it? Thanks... Tag: dotnet supported OS and languages Tag: 80825
  - 6
    - ImageList.Add () - Could this be a Bug ? Hi! I have an ImageList object with one image added with VS Designer. Then, within my code I'am trying to add some other image to the collection: int i = imageList1.Images.Add (myImage, Color.White) ; this throws OutOfMemoryException! imageList1 contains only one bitmap (32x32 24bit), image with the same size I wish to append, and White is selected as the ImageList.TransparentColor. When I use another variant of Add() method, everything works fine: imageList1.Images.Add (myImage) ; Why does it happen ?.. I did something wrong, or it just a CCL bug ?.. Paul Tag: dotnet supported OS and languages Tag: 80820
  - 7
    - memory usage on terminal server I have a question about memory usage for compiled code of .net application. I think that traditional DLL or EXE code is loaded into memory only once and it's shared between processes and/or sessions. However, i am not sure if this mechanism can be used for .net applications. because from EXE or DLL file is loaded only MSIL code and this is JIT compiled in memory. And my question is if this compiled code is shared between processes too. I tried to find an article about this on MSDN, but i couldn't. so if you know something useful then let me know. I need to know this, because of of deploying .net applications to terminal server. And i would like to know, if it is better to write unmanaged code for terminal server, or for example use ngen.exe to precompile an application. thank you in advance Rasto Novotny Tag: dotnet supported OS and languages Tag: 80812
  - 8
    - Changing a DataTables Schema Is it possible to use a DataAdapter to fill a DataTable, change the DataColumns of that DataTable (and maybe even it's name) and then commit those changes to the database (in my case SQL Server 2000)? Eg: [VB.NET] Dim dc As New SqlCommand("SELECT TOP 0 * FROM SomeTable", SomeSqlConnection) dc.CommandType = CommandType.Text Dim da As New SqlDataAdapter(dc) Dim dt As New DataTable da.FillSchema(dt, SchemaType.Source) dt.TableName = "NewTableName" dt.Columns("SomeColumn").ColumnName = "NewName" dt.Columns("AnotherColumn").DataType = GetType(String) dt.Columns.Add("NewColumn", GetType(Integer)) da.Update(dt) [C#] SqlCommand dc = new SqlCommand("SELECT TOP 0 * FROM SomeTable", SomeSqlConnection); dc.CommandType = CommandType.Text; SqlDataAdapter da = new SqlDataAdapter(dc); DataTable dt = new DataTable(); da.FillSchema(dt, SchemaType.Source); dt.TableName = "NewTableName"; dt.Columns["SomeColumn"].ColumnName = "NewName"; dt.Columns["AnotherColumn"].DataType = Type.GetType("System.String"); dt.Columns.Add("NewColumn", Type.GetType("System.Integer")); da.Update(dt); Tag: dotnet supported OS and languages Tag: 80811
  - 9
    - MailMessage and address book entries Hi, I am using the System.Web.Mail.MailMessage class to generate and send email messages from my asp.net web app. I assumed that this was some simple interface to send mail using SMTP, but in the documentation for the "To" property it says: "Recipients in the semicolon-delimited list can be either email addresses or address book display names" Can someone explain to me what "Address book" means in this context? I can't find any other reference to address books in the framework documentation. Is there some kind of behind-the-scenes integration with outlook or exchange? Andy Tag: dotnet supported OS and languages Tag: 80804
  - 10
    - Invalid http request for .NET control Hi, I have a web page with a reference to a .NET control and I am getting a number of extraneous requests occurred that are related to the control To Digress ======= The html page contains a object tag that references a .NET control. <object id="mycontrol" class="http://server/virtualdirectory/mycontrol.dll#mycontrol"></object> The control is downloaded and displayed on the page. Please note: The control is always successfully displayed. The problem ========= Over ADSL, the request for the page seems to take a long time. When I used Ethereal to pack sniff the http traffic, I discovered that 10 invalid requests had been made to find the control. these range from http://server/mycontrol.dll to http://server/mycontrol/mycontrol.exe to http://server/bin/mycontrol/mycontrol.dll The last request is usually the correct http://server/virtualdirectory/mycontrol.dll Each request takes x seconds and the response is usually over 1500 bytes (file not found response). Hence the delay in downloading the page over ADSL. The Question ========= Has anyone encountered this problem before and is there a way to stop it from happenning Thanks in Advance Mark Tag: dotnet supported OS and languages Tag: 80802
  - 11
    - weird behavior ( browser or C# ) I have a problem with a new C# DHTML chat server I am making. First I'll describe the problem and then ill post the code. When I open 3 new instances of IE and connect the first client to localhost:9999 the first client status bas only displays: "opening page http://localhost:9999" It does not display "1" as expected. But when the 2nd client connects the 1st client displays "2" and the 2nd client displays "opening page......" Only when the 3rd client connects the 2nd client displays "2" in the status bar the first client displays "3" in the status bar and the 3rd client displays "1" in the status bar ( because the server now stoped listening and the program terminated. ) But when I restart the server and reuse the same 3 clients ( without closing them and opening new instances of IE ) the first client after connecting displays "1" in the status bar imediately ( as should be ). when connecting the 2nd client it imediatly displays "1" in the status bar and the 1st client dispays "2" in the status bar and when i connect the 3rd client the first client displays "3", the 2nd "2" and the 3rd "1" in the status bar. Why is this behavior. On Netscape the behaviour is somewhat similar. this is the C# code. // console application using System; using System.Net; using System.Net.Sockets; using System.Threading; using System.Collections; using System.IO; using System.Text; namespace AtomHTTPresponse { class AtomHTTPresponse { private const int MAX_CONNECTIONS = 3; private ArrayList prArrayListHTTPpipes = new ArrayList(); private TcpListener prTcpListener = new TcpListener( IPAddress.Parse( "127.0.0.1" ), 9999 ); static void Main(string[] args) { AtomHTTPresponse lAtomHTTPresponse = new AtomHTTPresponse(); Thread lThreadListener = new Thread( new ThreadStart( lAtomHTTPresponse.ListenerHandler ) ); lThreadListener.Start(); } private void ListenerHandler() { prTcpListener.Start(); for ( int lCntOuter = 0; lCntOuter < MAX_CONNECTIONS; lCntOuter++ ) { //lock ( this ) //{ Thread lThreadListener = new Thread( new ThreadStart( ConnectionHandler ) ); lThreadListener.Start(); //} } } private void ConnectionHandler() { TcpClient lTcpClient = prTcpListener.AcceptTcpClient(); NetworkStream lNetworkStream = lTcpClient.GetStream(); StreamReader lStreamReader = new StreamReader( lNetworkStream ); StreamWriter lStreamWriter = new StreamWriter( lNetworkStream ); HTTPpipe lHTTPpipe = new HTTPpipe( lTcpClient, lNetworkStream, lStreamReader, lStreamWriter ); prArrayListHTTPpipes.Add( lHTTPpipe ); lHTTPpipe.WriteToCLient( "<script language=\"javascript\">window.status = 0</script>" ); for ( int lCntInner = 0; lCntInner < prArrayListHTTPpipes.Count; lCntInner++ ) { ( prArrayListHTTPpipes[ lCntInner ] as HTTPpipe ).WriteToCLient( "<script language=\"javascript\">window.status = parseInt( window.status ) + 1</script>" ); } } } class HTTPpipe { public TcpClient puTcpClient; public NetworkStream puNetworkStream; public StreamReader puStreamReader; public StreamWriter puStreamWriter; public char[] puArrCharRequest = new char[256]; static string cStrResponse = "<script language=\"javascript\">window.status = 0</script>"; static string cStrHTTPheader = "HTTP/1.1 200 OK\r\n" + "Server: Microsoft-IIS/5.0\r\n" + "Date: Wed, 9 jan 2004 19:59:09 GMT\r\n" + "X-Powered-By: ASP.NET\r\n" + "Content-Type: text/html\r\n" + "Set-Cookie: ASPSESSIONIDASQSSARR=CCOBBLCBOLKOECFIANBGOBAI; path=/\r\n" // let it be for now. redundancy will be removed at a later time + "Cache-control: private\r\n\r\n"; public HTTPpipe( TcpClient iTcpClient, NetworkStream iNetworkStream, StreamReader iStreamReader, StreamWriter iStreamWriter ) { puTcpClient = iTcpClient; puNetworkStream = iNetworkStream; puStreamReader = iStreamReader; puStreamWriter = iStreamWriter; puStreamReader.Read( puArrCharRequest, 0, puArrCharRequest.Length ); // do nothing with the request but now we know we dont send a response before the request has been fully received. WriteToCLient( cStrHTTPheader ); WriteToCLient( cStrResponse ); } public void WriteToCLient( string iStrResponse ) { puStreamWriter.Write( iStrResponse ); puStreamWriter.Flush(); } public void Close() { puTcpClient.Close(); } } } Tag: dotnet supported OS and languages Tag: 80799
  - 12
    - How can you highlight or disable a selection in a listbox I need disable or highlight a selection in a listbox to indicate that it has been selected before. I can already determine what values wereselected by storing those values in a stateview. Yet, how can I disable or point out those values were previously selected in a listbox and recorded. Tag: dotnet supported OS and languages Tag: 80793
  - 13
    - Multiple References and Object Instantiation?? I am working on a application that has many custom made dlls. Actually, for this app each dll is a different form. I am able, with no problem to reference and instantiate them to use their public properties and methods with no problem. But, if one dll is trying to access another dll's properties (this does not work very good) the project tries to copy the dll to the directory which already contains the dll and the app will not compile. I have tried different ways to work around this, ie. Create a Class that instantiates all the forms from the dlls and reference the Class from whatever needs them. I can reference them just fine but cannot instantiate anything. Basically I am referencing a reference from a reference. Is there a way to Globally include all the dll's in the project using a config file or something so that once the dll is referenced, it is accessible by everything that is referenced from the Main App and Eachother? I don't believe this is very efficient and would greatly appreciate any suggestions, on better ways to accomplish this. The basic plan is to have all the forms independant of the Main App so that if a single form is changed all that is needed is to updated is the corresponding dll. Thanks, Chuck Tag: dotnet supported OS and languages Tag: 80791
  - 14
    - Runtime Security Policy question I THOUGHT I COULD BLOCK CODE ACCESS SIMPLY BY RESTRICTING ACCESS VIA THE FRAMEWORK CONFIGURATION MANAGER. MY EXPERMENT BELOW HAS CONFUSED ME. I attributed a DLL called "Filer" at the assembly level as follows: [assembly:FileIOPermission(SecurityAction.RequestMinimum,Unrestricted=true)] The Filer.dll contains a class called FileOpener. I compiled "Filer.dll" and referenced it from a Windows Form Project. In Framework Config Tool, I created a Code Group named "Test" as a child of the "All Code" code group at the Machine Level, Imported Filer.dll with a Hash Membership Condition, set Policy Level to Exclusive, and set the Permission Set to the "Nothing" Permission Set. I tested the Permission Level with the "Evaluate Assembly" option and was informed I had no Permissions. AS EXPECTED, I ran the form and got an System.Security.Policy.PolicyException when I instantiated the Filer.FileOpener class. I THEN REMOVED THE FILER.DLL ATTRIBUTE mentioned above ([assembly:FileIOPermission( SecurityAction.RequestMinimum, Unrestricted=true)]) ...from the Filer.dll and recompiled, rereferenced in the Form app, in Framework Config tool, reImported the Test Code Group hash membership condition and left all other Security Policy settings the same. I tested the Permission Level with the "Evaluate Assembly" option and was informed I had no Permissions. AS UNEXPECTED, I ran the form and DID NOT get an System.Security.Policy.PolicyException when I instantiated the "filer.dll" FileOpener class. In fact I got no Exception! I would expect no exception if I had made a mistake in reImporting the Filer.dll in the Framework Config Tool, but I didn't. In fact I reversed the process by reattributing the Filer.dll, recompiling, rereferencing in the Form app, in Framework Config tool, reImported the Test Code Group hash membership condition and left all other Security Policy settings the same. I tested the Permission Level with the "Evaluate Assembly" option and was informed I had no Permissions. AS EXPECTED, I ran the form and got an System.Security.Policy.PolicyException when I instantiated the Filer.FileOpener class. This leads me to believe that FRAMEWORK CONFIGURATION MANAGER Runtime Security Policy settings do not affect components that have not been attributed to request Permissions...and instead Permission Calculation only comes into play when code has been attributed with permission requests. This goes against what I read about the subject. Can you see what I am missing? Tag: dotnet supported OS and languages Tag: 80788
  - 15
    - Problems adding a reference with COM --converting to type .NET assembly failed Hello-- I'm in the process of coverting a VB6 app to VB.NET. My VB6 app is a help desk program, which scans a mailbox that we have set up for our help desk. We use Novell Groupwise and in my VB6 app, I added a reference to the Groupwise type library--no problem. But when I try to add a reference in .NET, the Groupwise library shows up in the COM list and when I go to add it, I get an error message saying: "A reference to GroupWare type library' could not be added. Converting the type library to a .NET assembly failed. Could not load type GroupwareTypeLibrary.DocumentType2Class from assembly Interop.GroupwareTypeLibrary, version 1.0.0.0." The reading I've been doing for the better part of a day suggests that the .dll needs to be registered with the GAC. I tried using regasm.exe but got a message saying it failed to load because it's not a valid .NET assembly. I don't know what I'm supposed to do to be able to get this reference added. Any help would be appreciated. Thanks. Molly J. Fagan Oklahoma Foundation for Medical Quality Tag: dotnet supported OS and languages Tag: 80782
  - 16
    - How to set value of <INPUT type=file...> element programmatically? This is a multi-part message in MIME format. ------=_NextPart_000_0012_01C484AE.304460A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi ALL. I need to simulate send POST data ( - file upload) as it was submitted = in Browser. In C# I create instanse of IE, navigate to page with the = form, fill in the fields and try to Submit by call submitButton.click() = Unfortunately it does not work while file_filed.vale =3D <path_to_file> = has no effect, value <INPUT type=3Dfile...> cound not be set from script = of that HTML page. Is there another way to set that value by means of = .NET ? Below the part of code : SHDocVw.InternetExplorer ie =3D new SHDocVw.InternetExplorerClass(); object o =3D null; ie.Navigate( url, ref o, ref o, ref o, ref o ); // navigate to page with = the form and waiting for DownloadComplete ............................................. mshtml.HTMLDocument doc =3D (mshtml.HTMLDocument)ie.Document; mshtml.IHTMLInputFileElement file =3D = (mshtml.IHTMLInputFileElement)doc.getElementsByName("file").item(null,0);= file.value =3D m_sPathToFile; // has no effect!!!!!!! mshtml.HTMLInputButtonElement btn =3D = (mshtml.HTMLInputButtonElement)doc.getElementsByName("send").item(null,0)= ; btn.click(); ........................ Thank you for any help Evgeny ------=_NextPart_000_0012_01C484AE.304460A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1106" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT face=3DArial size=3D2>Hi ALL.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>I need to simulate send POST data = ( -=20 file upload) as it was submitted in Browser. In C# I create = instanse=20 of IE, navigate to page with the form, fill in the fields and try to = Submit by=20 call submitButton.click() Unfortunately it does not work while = file_filed.vale =3D=20 <path_to_file> has no effect, value <INPUT type=3Dfile...> = cound not=20 be set from script of that HTML page. Is there another way to set that = value by=20 means of  .NET ? Below the part of code :</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV> <P><FONT face=3D"Courier New" size=3D2>SHDocVw.InternetExplorer ie =3D = new=20 SHDocVw.InternetExplorerClass();<BR></FONT><FONT face=3D"Courier New"=20 size=3D2>object o =3D null;<BR></FONT><FONT face=3D"Courier New" = size=3D2>ie.Navigate(=20 url, ref o, ref o, ref o, ref o ); // navigate to page with the form and = waiting=20 for DownloadComplete<BR></FONT><FONT size=3D2></FONT></P> <P><FONT size=3D2><FONT=20 face=3D"Courier = New">.............................................<BR></FONT></P></FONT> <P><FONT face=3D"Courier New" size=3D2>mshtml.HTMLDocument doc =3D=20 (mshtml.HTMLDocument)ie.Document;<BR></FONT><FONT face=3D"Courier New"=20 size=3D2>mshtml.IHTMLInputFileElement file =3D=20 (mshtml.IHTMLInputFileElement)doc.getElementsByName("file").item(null,0);= <BR></FONT><FONT=20 face=3D"Courier New" size=3D2>file.value =3D m_sPathToFile; // has no=20 effect!!!!!!!<BR></FONT><FONT face=3D"Courier New"><FONT=20 size=3D2>mshtml.HTMLInputButtonElement btn =3D=20 (mshtml.HTMLInputButtonElement)doc.getElementsByName("send").item(null,0)= ;<BR></FONT><FONT=20 size=3D2>btn.click();</FONT></FONT></P> <P><FONT face=3D"Courier New" = size=3D2>........................</FONT></P> <P><FONT face=3D"Courier New" size=3D2></FONT> </P> <P><FONT face=3DArial size=3D2>Thank you for any help</FONT></P> <P><FONT face=3DArial size=3D2>Evgeny</FONT></P></DIV></BODY></HTML> ------=_NextPart_000_0012_01C484AE.304460A0-- Tag: dotnet supported OS and languages Tag: 80781
  - 17
    - Additional information: Exception has been thrown by the target of an invocation. Hi, I have .dll with Form and ImageList component, when I'm making instance, I got execption: An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll Additional information: Exception has been thrown by the target of an invocation. at line: this.imglToolBar.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imglToolBar.I mageStream"))); What is wrong? thx in andvance pawel Tag: dotnet supported OS and languages Tag: 80777
  - 18
    - Add a DLL to GAC Hi All, I added a DLL written by VB.NET to GAC. This DLL is located at C:\LLSI-Tech\GAC in my local computer. The project(project1) for above DLL is located at C:\clearcase\payoff. I add this DLL to my another VB class project(project2) as an reference from C:\LLSI-Tech\GAC. However, the path for the DLL changes from C:\LLSI- Tech\GAC to C:\clearcase\payoff\bin after I rebuild project2. Does anybody can tell me what is going on. Thank you in advance ! Hi All, I added a DLL written by VB.NET to GAC. This DLL is located at C:\LLSI-Tech\GAC im my local computer. The project(project1) for above DLL is located at C:\clearcase\payoff. I add this DLL to my another VB class project(project2) as a reference from C:\LLSI-Tech\GAC. However, the path for the DLL changes from C:\LLSI- Tech\GAC to C:\clearcase\payoff\bin after I rebuild project2. Does anybody can tell me what is going on. Thank you in advance ! My email address is ningsheng.xu@litton.c-bass.com Nelson Nelson Tag: dotnet supported OS and languages Tag: 80774
  - 19
    - OutOfMemoryException was thrown Hello everyone, I wrote a web service that monitorizes some directories and their contents. It returns a XML document as string. A web application calls this web service and parses the XML to display the status of directories graphically. It worked fine on Windows 2000. Then I transfered the web application on Windows 2003 and an OutOfMemoryException is thrown when there are too many files. Note this number of files excedeed is very low (order of 20). The web service still works on Windows 2003, but the web application causes the faults. The virtual memory settings are the same on 2000 e 2003. Thanks in advance, Gionni Tag: dotnet supported OS and languages Tag: 80767
  - 20
    - Serializing private members of a class I have a private instance of a object in a class i wish to include in the output of class serialization. The object is private because the contents cannot be modified outside the class but it is important that the contents of this private member are retained when the class is serialised. Can anyone tell me how i can include this private object instance into the serialised output. I know there are a number of xmlattributes you can apply to classes and class members, but i can't seem to find one that will allow me to do what i want. Thanks Tag: dotnet supported OS and languages Tag: 80756
  - 21
    - Weird IE behavior Hi all, I am trying to make a very efficient C# DHTML chat server. But even the responding to clients bogles me. I will post the code after I have described the problem: When i open 3 new instances of IE and connect the first client to localhost:9999 all the status bar displays is: "opening page......." It does not display "1" as expected. But when the 2nd client connects the 1st client displays "2" and the 2nd client displays "opening page" Only when the 3rd client connects the 2nd client displays "2" the first client displays "3" and the 3rd client displays "1" ( because the programm now terminated. ) But when I restart the client and reuse the same 3 clients ( without closing them and opening new instances of IE ) the first client after connecting displays "1" imediately ( as should be ). when connecting the 2nd client it imediatly displays "1" and the 1st client dispays "2" and so on and so on. Is IE or C# so fucked up or am I doing something wrong? // console application using System; using System.Net; using System.Net.Sockets; using System.Threading; using System.Collections; using System.IO; using System.Text; namespace AtomHTTPresponse { class AtomHTTPresponse { private const int MAX_CONNECTIONS = 3; private ArrayList prArrayListHTTPpipes = new ArrayList(); private TcpListener prTcpListener = new TcpListener( IPAddress.Parse( "127.0.0.1" ), 9999 ); static void Main(string[] args) { AtomHTTPresponse lAtomHTTPresponse = new AtomHTTPresponse(); Thread lThreadListener = new Thread( new ThreadStart( lAtomHTTPresponse.ListenerHandler ) ); lThreadListener.Start(); } private void ListenerHandler() { prTcpListener.Start(); for ( int lCntOuter = 0; lCntOuter < MAX_CONNECTIONS; lCntOuter++ ) { //lock ( this ) //{ Thread lThreadListener = new Thread( new ThreadStart( ConnectionHandler ) ); lThreadListener.Start(); //} } } private void ConnectionHandler() { TcpClient lTcpClient = prTcpListener.AcceptTcpClient(); NetworkStream lNetworkStream = lTcpClient.GetStream(); StreamReader lStreamReader = new StreamReader( lNetworkStream ); StreamWriter lStreamWriter = new StreamWriter( lNetworkStream ); HTTPpipe lHTTPpipe = new HTTPpipe( lTcpClient, lNetworkStream, lStreamReader, lStreamWriter ); prArrayListHTTPpipes.Add( lHTTPpipe ); lHTTPpipe.WriteToCLient( "<script language=\"javascript\">window.status = 0</script>" ); for ( int lCntInner = 0; lCntInner < prArrayListHTTPpipes.Count; lCntInner++ ) { ( prArrayListHTTPpipes[ lCntInner ] as HTTPpipe ).WriteToCLient( "<script language=\"javascript\">window.status = parseInt( window.status ) + 1</script>" ); } } } class HTTPpipe { public TcpClient puTcpClient; public NetworkStream puNetworkStream; public StreamReader puStreamReader; public StreamWriter puStreamWriter; public char[] puArrCharRequest = new char[256]; static string cStrResponse = "<script language=\"javascript\">window.status = 0</script>"; static string cStrHTTPheader = "HTTP/1.1 200 OK\r\n" + "Server: Microsoft-IIS/5.0\r\n" + "Date: Wed, 9 jan 2004 19:59:09 GMT\r\n" + "X-Powered-By: ASP.NET\r\n" + "Content-Type: text/html\r\n" + "Set-Cookie: ASPSESSIONIDASQSSARR=CCOBBLCBOLKOECFIANBGOBAI; path=/\r\n" // let it be for now. redundancy will be removed at a later time + "Cache-control: private\r\n\r\n"; public HTTPpipe( TcpClient iTcpClient, NetworkStream iNetworkStream, StreamReader iStreamReader, StreamWriter iStreamWriter ) { puTcpClient = iTcpClient; puNetworkStream = iNetworkStream; puStreamReader = iStreamReader; puStreamWriter = iStreamWriter; puStreamReader.Read( puArrCharRequest, 0, puArrCharRequest.Length ); // do nothing with the request but now we know we dont send a response before the request has been fully received. WriteToCLient( cStrHTTPheader ); WriteToCLient( cStrResponse ); } public void WriteToCLient( string iStrResponse ) { puStreamWriter.Write( iStrResponse ); puStreamWriter.Flush(); } public void Close() { puTcpClient.Close(); } } } Tag: dotnet supported OS and languages Tag: 80753
  - 22
    - The underlying connection was closed - Remoting.Channels.Http.HttpClientTransportSink Hi, I got this error. I search the web and found a long disscus and solutions for example at http://p2p.wrox.com/topic.asp?TOPIC_ID=4858 the problem I use remoting and not webservie. I dont have reference.cs file. do you have any solution? which function to overload ? wehre? TIA Gilad System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. Server stack trace: at System.Runtime.Remoting.Channels.Http.HttpClientTransportSink.ProcessResponseException(WebException webException, HttpWebResponse& response) at System.Runtime.Remoting.Channels.Http.HttpClientTransportSink.ProcessMessage(IMessage msg, ITransportHeaders requestHeaders, Stream requestStream, ITransportHeaders& responseHeaders, Stream& responseStream) at System.Runtime.Remoting.Channels.SoapClientFormatterSink.SyncProcessMessage(IMessage msg) Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) Tag: dotnet supported OS and languages Tag: 80752
  - 23
    - Accessing mapped drives from Framework 1.1 & COM+ I have a COM+ application that was written using Framework 1.0 and runs on Windows 2000. The COM+ app runs as domain user who has access to certain network shares. These shares are mapped on the server. There is no issue on Windows 2000. I installed the same app on Windows 2003 without installing Framework 1.0. Now the application says it cannot find the mapped drive. Do I need to change some configuration? Thanks. James Tag: dotnet supported OS and languages Tag: 80736
  - 24
    - how to make an object readonly in runtime? I have some data in a DataTable object that I'd like to put into a static class for the entire app to use, kind of like a cahced global value. The data in there should not change, but DataTable by default can be changed. Is there an easy way to make it read only. I can probably create my own wrapper class to accomplish this but hopefully there is a way to do this directly on the DataTable. Thanks in advance for any help Bob Tag: dotnet supported OS and languages Tag: 80721
  - 25
    - frame work for linux Im looking for a framework for linux if available because after i wrote the site i heard they use linux and need me to wroke in perl or cgi Tag: dotnet supported OS and languages Tag: 80710
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  - 1
    - looking for sample:multiple view single document in C# or VB Hi, I am looking for sample of an application similar to outlook regarding UI when user select a tree node in the left pane a view is changed in the right pane (it does not necessarily support MFC doc view architecture ) thanks in advance Tag: dotnet supported OS and languages Tag: 80702
  - 2
    - Best practice to lock DB SQLServer records in VB.NET application Hi all; I wonder if you have an opinion about this matter: Besides using "Version Number Approach" and "Saving All Values Approach" http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon/html/vbtskPerformingOptimisticConcurrencyChecking.asp suggested by MS for solving lock problems, is there any other options to do this? In my opinion there's one limitation in these methods: if you loose your connection to your db for some reason while comitting the transaction, how can you be sure the lock is in the rigth state? Can you use threads to lock and unlock records? If so, can someone point me to some kind of a sample or tutorial to learn more about it? Urgent! Thanks in advance! Tag: dotnet supported OS and languages Tag: 80697
  - 3
    - twain scanner can i import images from a twain device such like scanner ? how to do it using dotnet ? regards, Tag: dotnet supported OS and languages Tag: 80693
  - 4
    - Type.GetType Access is denied Hello, The .NET application I have just installed at a client web site is throwing a strange error. At first the applications works without any problems, but after 10 mins or so Access denied error messages are thrown. The application, web based, late binds to a series of assemblies, none of which are in the GAC. I have configured the application to impersonate the IIS user and have set the user to have access to all relevant directories (wwwroot, wwwroot/bin, Microsoft.Net/framework/v1.1.4322) and disabled the index services service. After digging a little deeper it seems the error is thrown when calling Type.GetType, but like I mentioned earlier everything works fine but then suddenly dies. Can anybody think why this is the case and what I can do to resolve this irritating problem. Thanks Richard. Tag: dotnet supported OS and languages Tag: 80690
  - 5
    - Oracle NET Maximum Connections reached I am using Data.OracleClient.Dll version 1.0.1012.0 and closing the connections in code using .close but i still get the "Maximum connections reached" message and the oracle server shows idle inactive connections for aspnet The connection string used is "Data Source=DEV001.SRV01;password=test;user id=test;Max Pool Size=10;Min Pool Size=10" Should i drop the use of Microsoft .NET Oracle provide and use Oracle Net Provider, or aparently this is a know problem and microsoft has a hotfix but i don't know where to download this from ? any help would be greatly appreciated Thank You Tag: dotnet supported OS and languages Tag: 80689
  - 6
    - Microsoft's DNP for Oracle. HELP!! (sorry for the x-post) Hello all, I am currently working on a project that uses MS's .net provider for Oracle. Now, here is where it gets WEIRD!!! for some reason when we run it in VS.NET's IDE it is fine, a previous build deployed (xcopy) onto a test PC is fine. However; when we have recently but a new build on it doesn't work. The only thing (and I ain't buying it) that my work mate says it is down to is that the path of the EXE has brackets in it!!! When we remove the brackets it is fine (something ain't right)!!!! Has anyone had a similar scenario or a explanation for this bizarre behaviour???? Regards Alan Seunarayan Tag: dotnet supported OS and languages Tag: 80686
  - 7
    - httpwebrequest requeststream I am posting to a cgi script using httpwebrequest but I have when problems when of the parameters in the request stream has embedded spaces. My old asp code successfully posted using a form action with fields such as &name="Joe Jackson" in .NET, if I pass this to the requeststream the cgi interprets some extra double quotes &name=""Joe Jackson"" If I leave off the quotes entirely the CGI script fails. Does anybody know whats the best way to build the requeststream so that it handles double quotes and spaces. Tag: dotnet supported OS and languages Tag: 80685
  - 8
    - Serialized Hashtable Hi I've tried moving a serialized hashtable made in WinXP (std .Net framework), to a PocketPC device (Compact Framework). I've ran in to all kinds of problems, and have not been able to get this to work. The problem is not in the actual filecopy. I've tried the CompactFormatter (http://www.freewebs.com/compactFormatter/) for binary serialization. No luck when deserializing on the device. CF wont deserializa std framework, vice versa. I've tried XML serialization from opennetcf (http://www.opennetcf.org/library/OpenNETCF.Xml.Serialization.html). Got a problem since Hashtable implement IDictionary. For some reason. Is there another way to do this? Is there a reason why this should not work, or is it me who's doing this all wrong. If Hashtable in std framework is differently implemented than the Hashtable in CF, that would explain incompatibility when deserializing. But is that the case? Thanks, Finn Tag: dotnet supported OS and languages Tag: 80684
  - 9
    - cellphone bluetooth (serial) SMS receive Hi, does anyone know how to receive a sms from a cellphone in a c# application? I use a Sony ericsson T610 on a bluetooth serial connection. Thanks in advance Jan Tag: dotnet supported OS and languages Tag: 80682
  - 10
    - Structure and Interface Consider the following codes: ---------------------------------------------------- using System; namespace ConsoleApplication1 { interface IPointD { double X {get; set;} double Y {get; set;} } struct PointD : IPointD { private double x; private double y; public PointD(double x, double y) { this.x = x; this.y = y;} public double X { get { return x; } set { x= value; } } public double Y { get { return y; } set { y = value; } } } class Class1 { static void Method(IPointD point) { if (point != null) { point.X = 10; point.Y = 10; } } [STAThread] static void Main(string[] args) { PointD point = new PointD(1, 1); IPointD dPoint = (IPointD)point; Method(dPoint); Console.WriteLine("X = {0}, Y = {1}", point.X, point.Y); } } } --------------------------------------------------------- Why is the call to the method - Method(dPoint) not by reference? Best regards, Paul. Tag: dotnet supported OS and languages Tag: 80670
  - 11
    - References for converting app MTS references to .NET ? Are there any good references/links for converting MTS references in an app (VB6) to .NET ? (without tossing MTS of course) Tag: dotnet supported OS and languages Tag: 80658
  - 12
    - Binary Compatibility equivalent in .NET ? I have a client that insists that there be some sort of binary compatibility equivalent in the .NET assemblies I'm producing (converted from VB6 code). I understand their concern: while you don't *need* binary compatibility since you can just plunk in newer versions of assemblies (unlike in COM where the entire mess had to be recompiled if you didn't use binary compatibility), you might want some way to warn or prevent developers from making changes that may break an app using the assembly. I think this was the other main advantage of binary compatibility - it prevented thoughtless breaking changes thrown in all over the place. Any ideas? Tag: dotnet supported OS and languages Tag: 80657
  - 13
    - FileLen reports wrong file size 1. A function starts an unknown external program. 2. The external program starts writting a file. 3. The function should report the size of the file being written by the external program. How to achieve the 3rd point using .net framework 2003 only? Notes: for a certain external program .Net's FileLen reported file size is allways 0 until the file is closed. Microsoft Scripting Runtime's FileSystemObject.GetFile(FileName).Size retports the correct file size while it is being written. VB Tag: dotnet supported OS and languages Tag: 80650
  - 14
    - Shared Static Variables in vb.net please? Does anyone know if MS has / is planning to introduce a shared static local variable to VB.net? I have had a few instances now where I thought this would be a tidy way to write some code. i.e. an instance method needs to access a shared (class) variable, and it is the only method that needs to access it. I really like the concept of static variables in vb.net, they make class definitions a lot tidier I think. Just a shame they called the keyword "static" as seems to confuse people. Cheers. Tag: dotnet supported OS and languages Tag: 80649
  - 15
    - Bug in timers.timer ? Hi, Maybe Iâ??m doing something wrong but I canâ??t know what. Iâ??m using timers in my applications to do things after n seconds after do any other thing. Symptoms: After a random time the Elapse event just stop to be raised. I tried to debug and found something curious: Although I specified AutoReset property to False, at some time in the Elapse event the Enabled property came at value of True!!! After that happen, the Elapse event simply stop to rise. That means that my host applications freeze will waiting some work to be done based on that event. Please analyze this problem. I created a simple example that demonstrates that problem. The code is below this message. Just run it in debug mode, click Start button and wait till form turn red. At that time the problem I mentioned just happened. You can insert a breakpoint just after â??If T1.Enabled Thenâ?? line at â??T1_Elapsedâ?? sub and just after â??If T2.Enabled Thenâ?? line at â??T2_Elapsedâ?? sub to analyze what is happening. I couldnâ??t found an exact time that happened, so you can just start my example application and do other things while wait form turn red, or application stop at your break points. In my example I had a button to restart timer after it stops raising events. It seams that to restart raising Elapse events is just needed to set Enabled property to false and call start againâ?¦ But this behavior is not good! If I start many instances of this example app, them the error appears more offen. Is that a bug? Pedro GonÃ§alves Example code: Public Class Form1 Inherits System.Windows.Forms.Form #Region " Windows Form Designer generated code " Public Sub New() MyBase.New() 'This call is required by the Windows Form Designer. InitializeComponent() 'Add any initialization after the InitializeComponent() call End Sub 'Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub 'Required by the Windows Form Designer Private components As System.ComponentModel.IContainer 'NOTE: The following procedure is required by the Windows Form Designer 'It can be modified using the Windows Form Designer. 'Do not modify it using the code editor. Friend WithEvents Label1 As System.Windows.Forms.Label Friend WithEvents Label4 As System.Windows.Forms.Label Friend WithEvents Button1 As System.Windows.Forms.Button Friend WithEvents lblCounter1 As System.Windows.Forms.Label Friend WithEvents lblCounter2 As System.Windows.Forms.Label Friend WithEvents Button2 As System.Windows.Forms.Button Friend WithEvents Button3 As System.Windows.Forms.Button <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.Label1 = New System.Windows.Forms.Label() Me.lblCounter1 = New System.Windows.Forms.Label() Me.lblCounter2 = New System.Windows.Forms.Label() Me.Label4 = New System.Windows.Forms.Label() Me.Button1 = New System.Windows.Forms.Button() Me.Button2 = New System.Windows.Forms.Button() Me.Button3 = New System.Windows.Forms.Button() Me.SuspendLayout() ' 'Label1 ' Me.Label1.Location = New System.Drawing.Point(24, 32) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(112, 16) Me.Label1.TabIndex = 0 Me.Label1.Text = "Elapse Counter" Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ' 'lblCounter1 ' Me.lblCounter1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle Me.lblCounter1.FlatStyle = System.Windows.Forms.FlatStyle.Flat Me.lblCounter1.Location = New System.Drawing.Point(24, 56) Me.lblCounter1.Name = "lblCounter1" Me.lblCounter1.Size = New System.Drawing.Size(112, 24) Me.lblCounter1.TabIndex = 1 Me.lblCounter1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ' 'lblCounter2 ' Me.lblCounter2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle Me.lblCounter2.FlatStyle = System.Windows.Forms.FlatStyle.Flat Me.lblCounter2.Location = New System.Drawing.Point(160, 56) Me.lblCounter2.Name = "lblCounter2" Me.lblCounter2.Size = New System.Drawing.Size(112, 24) Me.lblCounter2.TabIndex = 3 Me.lblCounter2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ' 'Label4 ' Me.Label4.Location = New System.Drawing.Point(160, 32) Me.Label4.Name = "Label4" Me.Label4.Size = New System.Drawing.Size(112, 16) Me.Label4.TabIndex = 2 Me.Label4.Text = "Elapse Counter" Me.Label4.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ' 'Button1 ' Me.Button1.Location = New System.Drawing.Point(24, 96) Me.Button1.Name = "Button1" Me.Button1.Size = New System.Drawing.Size(248, 32) Me.Button1.TabIndex = 4 Me.Button1.Text = "Start" ' 'Button2 ' Me.Button2.Enabled = False Me.Button2.Location = New System.Drawing.Point(28, 136) Me.Button2.Name = "Button2" Me.Button2.Size = New System.Drawing.Size(108, 32) Me.Button2.TabIndex = 5 Me.Button2.Text = "Start Timer" ' 'Button3 ' Me.Button3.Enabled = False Me.Button3.Location = New System.Drawing.Point(160, 136) Me.Button3.Name = "Button3" Me.Button3.Size = New System.Drawing.Size(108, 32) Me.Button3.TabIndex = 6 Me.Button3.Text = "Start Timer" ' 'Form1 ' Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(304, 175) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button3, Me.Button2, Me.Button1, Me.lblCounter2, Me.Label4, Me.lblCounter1, Me.Label1}) Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle Me.MaximizeBox = False Me.Name = "Form1" Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen Me.Text = "Form1" Me.ResumeLayout(False) End Sub #End Region Private T1 As System.Timers.Timer Private T2 As System.Timers.Timer Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click T1 = New System.Timers.Timer() T1.AutoReset = False T1.Interval = 10 T1.SynchronizingObject = Me AddHandler T1.Elapsed, AddressOf T1_Elapsed T2 = New System.Timers.Timer() T2.AutoReset = False T2.Interval = 500 T2.SynchronizingObject = Me AddHandler T2.Elapsed, AddressOf T2_Elapsed T1.Start() T2.Start() Button1.Enabled = False End Sub Private Sub T1_Elapsed(ByVal sender As Object, ByVal e As System.Timers.ElapsedEventArgs) ' Handles T1.Elapsed Static Counter As Integer If T1.Enabled Then ' ???????????????? Me.BackColor = Color.Red lblCounter1.BackColor = Color.LightYellow Button2.Enabled = True End If Counter += 1 lblCounter1.Text = Counter lblCounter1.Refresh() T1.Start() End Sub Private Sub T2_Elapsed(ByVal sender As Object, ByVal e As System.Timers.ElapsedEventArgs) ' Handles T2.Elapsed Static Counter As Integer If T2.Enabled Then ' ???????????????? Me.BackColor = Color.Red lblCounter2.BackColor = Color.LightYellow Button2.Enabled = True End If Counter += 1 lblCounter2.Text = Counter lblCounter2.Refresh() T2.Start() End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click T1.Enabled = False T1.Start() Button2.Enabled = False End Sub Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click T2.Enabled = False T2.Start() Button3.Enabled = False End Sub End Class Tag: dotnet supported OS and languages Tag: 80638
  - 16
    - propercase ProperCase for normal usage is simple: Dim s, s1, s2 As String s = "DENNIS TURNER" s1 = StrConv(s, VbStrConv.ProperCase) Even with names it's simple Turner, Dennis Turner, Mr. Dennis But thereafter it can become more complicated: Turner, Dennis Md Turner, Dennis Phd I can go through the 10 or 15 most likely suspects and handle them with select case statements. However, I feel I am reinventing the wheel. Somewhere, someplace, somebody must have created a class that already handles a great number of these annoyances. I would appreciate being directed to it. Thank you. Dennis Tag: dotnet supported OS and languages Tag: 80637
  - 17
    - Function to access the encrypted filesystem. From the explorer I can encrypt a file or directory using EFS. I would like to do the same thing programatically. I want to write data to a file and have it encrypted so that only I can read it. Is this possible using .NET? Thank you. Kevin Tag: dotnet supported OS and languages Tag: 80634
  - 18
    - GetInvocationList - Getting the delegates wired up to an event I'm wanting to retrieve a list of all the delegates that have resulted from Events being wired up to my class. I can see (and have been told) that "GetInvocationList" is the method to use for this, but I can't see how, from within my class, I use this method to achieve this. What is the delegate I'm calling GetInvocationList on?? Can someone show me what to do here please? Many thanks! === Phil (Auckland | Aotearoa) Tag: dotnet supported OS and languages Tag: 80632
  - 19
    - Simple question Suppose I built an application using the .NET Framework 1.0 compiler. Do I have to configure anything to make it run on higher versions? Tag: dotnet supported OS and languages Tag: 80627
  - 20
    - installing IIS (Internet Info. Service) I'll like to install VB.NET on my computer and do it right. I have both: VB.NET (Standard) AND Visual Studio.NET (academic) The book I have "warn" me: "You must install IIS before installing VB" So, before even placing any of those CD into my computer I'll like to know: 1. Does any of these have IIS 2. If yes, how to comply with the above warning. 3. If not - where do I get IIS Thanks, Uzi Tag: dotnet supported OS and languages Tag: 80609
  - 21
    - is it possible is it possible to write a tool like "netstat" and close socket connections externally with .NET Framework thanks, parahat melayev Tag: dotnet supported OS and languages Tag: 80605
  - 22
    - Socksified proxy ftp client ? Hi, I have written an FTP client in C# that communicates using sockets (System.Net.Sockets.Socket that implements Berkeley sockets). This does not work from behind authenticated proxies. I have been given to understand that for the client to work from authenticated proxies, i need to "Socksify" it. What is this "Socksification" of client? Any help in this direction is greatly appreciated. Thanks in advance regards -Kumarforg Tag: dotnet supported OS and languages Tag: 80603
  - 23
    - How to CreateDirectory to create a directory structure on a network drive If I call CreateDirectory(\\\\devDriveA\\foo\\bar\\a\\b\\c) and \\devDriveA\foo\bar already exists then sub directories a\b\c don't get created. When I use CreateDirectory on my own file system, e.g. CreateDirectory("c:\\a\\b\\c"); it works fine. Is there something that I must do to get CreateDirectory to work on network drives? Tag: dotnet supported OS and languages Tag: 80599
  - 24
    - Installing .Net Framework Hello, although not a typical development problem per se, it is a situation that prevents me for developing in the .net framework v1.1. In a Windows 2000 Server with .Net Framework version 1.0.3705 installed, all asp & aspx files ran fine. I tried to install the newest version (1.1x) without uninstalling version 1.0 and installation seemed fine, aspx files were running OK. However, asp pages did not run, with an HTTP Error 500 (Internal server error). An uninstallation of the newest version, alongside a reboot that followed, corrected the problem. The particular server hosts numerous client asp pages, and all of them had the Internal server error, even when application protection was at the "low" setting. Please note that I am not an experienced developer, so I might have missed some tweaks that might make it work. What could have cause the problem? TIA, Dimitris Tag: dotnet supported OS and languages Tag: 80598
  - 25
    - Accessing another domain file system in C# If i log into my computer as domain A and user X and password Y but then I need to give C# application access to domain B as user F and password G. Is this possible? or do i have to log into the computer as domain B, user F and password G in order for the application to have permissions to domain B? I would like to stay logged in as domain A but just give my C# application access to domain B. In my application I need file system access that users of domain B have but from domain A. Is this possible to do programaticaly if I have the user name and password to a domain B account? Tag: dotnet supported OS and languages Tag: 80595

i would like to know what are the dotnet languages are avilable and what are
the dotnet languages are going to be released by microsoft or other 3-party
members.
apart from windows is there any OS version avilable for .net framework.

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RE: dotnet supported OS and languages by SyedAlam

SyedAlam
Tue Aug 24 05:15:02 CDT 2004

Mono is an open source platform for building and deploying .NET
applications on Linux and UNIX, currently it supports C#.

for further details

http://www.mono-project.com/about/index.html

"venkat" wrote:

> i would like to know what are the dotnet languages are avilable and what are
> the dotnet languages are going to be released by microsoft or other 3-party
> members.
> apart from windows is there any OS version avilable for .net framework.

Top