VPN in VB.NET

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  - 1
    - String stream in VB.NET 2003 (.NET 1.1) I have some libraries that will write to a stream. I would like them to write to a string, which I can then manipulate in memory, rather than to a file. I cannot find documentation for how to get a stream that writes to or reads from a string. Is such functionality available? Thanks! ~BenDilts( void ); Tag: VPN in VB.NET Tag: 102433
  - 2
    - Converting Tif to Jpeg problem (Sorry for the double post I just saw the naming required for themanged newsgroup and I need an answer!! Thanks) Hi, I'm writing an application that extract attachment from Exchange, save it in an SQL DB and then display it over the web. Everything works fine for JPG, GIF, etc. However for TIFF file I need to convert them. However my code does not seem to work... I can convert from JPEG to GIF but not from TIFF to GIF or JPEG. For some reason the converted TIFF image appears to become corrupted during the conversion... The resulting JPEG image shows an empty large image holder. If I "re-convert" (or if you prefer "re-save as a JPEG") a second time the image again before displaying it, then it shows a portion of the image but then seems to repeat a "pixel row" indefinetely till the bottom... Any idea has to what I'm doing wrong? Thanks a lot for your help. Here is the code I use: //Converts the bytes extracted from the exchange attachment //Note: I tried using a file instead of memory stream with the same results public byte[] ConvertTiffToJpeg(byte[] tiffImage) { //Creating memory stream with the raw image data System.IO.MemoryStream memStrm = new System.IO.MemoryStream(tiffImage, true); memStrm.Write(tiffImage, 0, tiffImage.Length); //Create an image from the memory stream System.Drawing.Image img = System.Drawing.Image.FromStream(memStrm, true, false); //Get the list of available encoders System.Drawing.Imaging.ImageCodecInfo[] codecs = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders(); //find the encoder with the image/jpeg mime-type System.Drawing.Imaging.ImageCodecInfo ici = null; foreach (System.Drawing.Imaging.ImageCodecInfo codec in codecs) { if (codec.MimeType == "image/jpeg") ici = codec; } //Create a collection of encoder parameters (we only need one in the collection) System.Drawing.Imaging.EncoderParameters ep = new System.Drawing.Imaging.EncoderParameters(); //Create an encoder parameter for quality with an appropriate level setting ep.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)100); //Convert the tiff image to jpeg and save the result to a new memory strem System.IO.MemoryStream convertedMs = new System.IO.MemoryStream(); img.Save(convertedMs, ici, ep); //Convert the jpeg image back to byte return convertedMs.ToArray(); } -- Martin Rajotte Incycle Software Tag: VPN in VB.NET Tag: 102428
  - 3
    - Problem converting TIFF to JPEG Hi, I'm writing an application that extract attachment from Exchange, save it in an SQL DB and then display it over the web. Everything works fine for JPG, GIF, etc. However for TIFF file I need to convert them. However my code does not seem to work... I can convert from JPEG to GIF but not from TIFF to GIF or JPEG. For some reason the converted TIFF image appears to become corrupted during the conversion... The resulting JPEG image shows an empty large image holder. If I "re-convert" (or if you prefer "re-save as a JPEG") a second time the image again before displaying it, then it shows a portion of the image but then seems to repeat a "pixel row" indefinetely till the bottom... Any idea has to what I'm doing wrong? Thanks a lot for your help. Here is the code I use: //Converts the bytes extracted from the exchange attachment //Note: I tried using a file instead of memory stream with the same results public byte[] ConvertTiffToJpeg(byte[] tiffImage) { //Creating memory stream with the raw image data System.IO.MemoryStream memStrm = new System.IO.MemoryStream(tiffImage, true); memStrm.Write(tiffImage, 0, tiffImage.Length); //Create an image from the memory stream System.Drawing.Image img = System.Drawing.Image.FromStream(memStrm, true, false); //Get the list of available encoders System.Drawing.Imaging.ImageCodecInfo[] codecs = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders(); //find the encoder with the image/jpeg mime-type System.Drawing.Imaging.ImageCodecInfo ici = null; foreach (System.Drawing.Imaging.ImageCodecInfo codec in codecs) { if (codec.MimeType == "image/jpeg") ici = codec; } //Create a collection of encoder parameters (we only need one in the collection) System.Drawing.Imaging.EncoderParameters ep = new System.Drawing.Imaging.EncoderParameters(); //Create an encoder parameter for quality with an appropriate level setting ep.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)100); //Convert the tiff image to jpeg and save the result to a new memory strem System.IO.MemoryStream convertedMs = new System.IO.MemoryStream(); img.Save(convertedMs, ici, ep); //Convert the jpeg image back to byte return convertedMs.ToArray(); } Tag: VPN in VB.NET Tag: 102424
  - 4
    - Bug in System.Timers.Timer class The System.Timers.Timer class has a property Interval, which is a double (timer interval in milliseconds) If interval is set to a double value > Int32.MaxValue and the timer is started, an ArgumentOutOfRangeException is thrown (Additional information: Number must be either non-negative or -1). It seems to me that internally, the double Interval is casted to an int... Geert Depickere. Tag: VPN in VB.NET Tag: 102417
  - 5
    - Microsoft.Web.UI.WebControls not found I downloaded a complete DataGrid example, "IssueTracker", for accessing an Access DB with a DataGrid control. Sounded like a cakewalk. The first line of the .aspx file referenced the "Microsoft.Web.UI.WebControls" namespace. I got an error msg that the namespace could not be found. Any ideas? The gory details follow: I expanded the compressed, downloaded app into "AppFolder", which had .aspx and .vb files and a couple of sub-folders. The first line of the .aspx file is: <%@ Register TagPrefix="iewc" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %> I copied the AppFolder to the wwwroot folder a la Jeff Prosise's guidance for testing his MyComicsRepeater example. I pointed IE to http://localhost/AppFolder/IssueTracker.aspx I got: · Server Error in '/' Application. · Parser Error Message: File or assembly name Microsoft.Web.UI.WebControls, or one of its dependencies, was not found. · Line 1: <%@ Register TagPrefix="iewc" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %> The latter line was rendered in red.) I searched the web and found · http://msdn.microsoft.com/library/default.asp?url=/workshop/webcontrols/assemblies/webcontrols_entry.asp that claimed "Microsoft Internet Explorer WebControls are not currently supported". A few other pieces of possibly relevant data: I'm running · WinXP-Pro/SP2 with security upgrades from MicrosoftUpdate and .NET 1.1 · Visual Studio .NET (MSDE 2002 using .Net Framework 1.0) despite the fact the I've got 1.1 installed Tag: VPN in VB.NET Tag: 102403
  - 6
    - What is the best way to implement this scenario? We need to implement an application with following requirements. This application needs to use a user defined component that plays movie files. This application needs to run through web pages as well as a stand-alone application through CD media. Is has to be developed in VC.Net 1.1/2.0. What is the best way to implement this application whereby maximum code utilization can be done for both web and cd usage? Tag: VPN in VB.NET Tag: 102399
  - 7
    - Process - no window open Hi, I have a C# (form) program. I need it to run a 'command line program'. I have it working fine using Process, but it (temporarily) opens a Command Prompt window everytime it runs (and closes it when it finishes). How do I get it to run in the background without opening a window each time I call process.Start()? (FYI: I searched for this on the web but couldn't find anything) Thanks, Hilton Tag: VPN in VB.NET Tag: 102388
  - 8
    - Detecting if SMTP server is running Hi I'm working on a project where some business process rely on several external servers to perform processing. These are Sql Server x 2, Credit Card processing and Mail Server. Before entering the business process, I'd like to verify that each of these are available, in particular the SMTP Server, which is the most volatile of the above servers. What would be the best way to detect if the SMTP server is up and running? Ben Tag: VPN in VB.NET Tag: 102386
  - 9
    - select multiple xml fragments from xml file Hi, I have an xml file (see below). using C# I would like to pull out all student names and write then to screen. As there may be an unknown number of <studentName> tags in the file, what i would like to do is "select" all <studentName> nodes and for each one write out first name and last name. can anybody point me in the direction (or show me how to do this.) what I would like is something like the following foreach loop foreach studentname element in the xmldocument { console.writeline(...student first name) console.writeline(...student last name) } many thanks in advance. cheers martin. ============================================================================ ===================================================== <names> <college>xml College</college> <year>1995</year> <class>orange</class> <studentName> <Firstname>John</Firstname> <LastName>moses</LastName> </studentName> <studentName> <Firstname>greg</Firstname> <LastName>bennet</LastName> </studentName> <studentName> <Firstname>lucus</Firstname> <LastName>starsky</LastName> </studentName> <studentName> <Firstname>chuck</Firstname> <LastName>jennings</LastName> </studentName> <studentName> <Firstname>nick</Firstname> <LastName>edwards</LastName> </studentName> <studentName> <Firstname>gordon</Firstname> <LastName>bennet</LastName> </studentName> <studentName> <Firstname>james</Firstname> <LastName>galloway</LastName> </studentName> <studentName> <Firstname>paul</Firstname> <LastName>elley</LastName> </studentName> <studentName> <Firstname>simon</Firstname> <LastName>simone</LastName> </studentName> </names> Tag: VPN in VB.NET Tag: 102385
  - 10
    - Enterprise Library - Asynchronous Logging... I have managed to get asycnhronous logging work for an asp.net application and I wanted some clarification on the method. Normally if the application is logging synchronously it has all the settings for the logging application block in the app.config for the application. But if you want to use asynchronous logging you have to specify asynchronous logging for all logging types in the app.config of the application and then define the extact logging sinks in the app.config of the msmqdistributor.exe (windows service). Is this correct? Seems rather confusing and rather messy - application specific logging information have to be put into a generic widows service that could be used by more than one application on the system. cheers Ollie Riches Tag: VPN in VB.NET Tag: 102382
  - 11
    - Help with HttpWebRequest.Method Thanks in advance for any help offered. I am trying to fill out a form on a web page and submit the form data to the web server , all from within my vb program. The html sorce ( reduced for this post is) <FORM ACTION="a_valid_url.cfm" METHOD="POST"> <BR> <P>Trend <SELECT NAME="trend_id"> <OPTION VALUE="ALL;ALL">ALL <OPTION VALUE="FIRST;abc">First <OPTION VALUE="SECOND;abc">Second </SELECT> <P> <TABLE WIDTH=400> <TR ALIGN=CENTER><TD>Month <SELECT NAME="month"> <OPTION VALUE="ALL" SELECTED>ALL <OPTION VALUE="1">Jan <OPTION VALUE="2">Feb </SELECT> </TD> <TD>Day <SELECT NAME="DAY"> <OPTION VALUE="ALL">ALL <OPTION VALUE="1">1 <OPTION VALUE="2">2 </SELECT> </TD> </TR> </TABLE> <P><INPUT TYPE="submit" VALUE="Search"> </FORM> In my vb program I set up a HttpWebRequest as follows. I have no experience with HTML or Jscript. Limited experience with VB. I want to submit a trend_id of "FIRST" with "ALL" months and "ALL" days from my vb prog. Dim STE As String = "http://www.a_valid_url" Dim m_cred As New NetworkCredential("username", "password") Dim m_Cache As New CredentialCache() m_Cache.Add(New Uri(STE), "Basic", m_cred) m_Cache.Add(New Uri(STE), "Digest", m_cred) m_Cache.Add(New Uri(STE), "NTLM", m_cred) m_Cache.Add(New Uri(STE), "Kerberos", m_cred) Dim mm_req As HttpWebRequest = CType(WebRequest.Create(STE), HttpWebRequest) mm_req.Credentials = m_Cache Dim srch As String srch = "I'm not sure what goes here??" Dim qq() As Byte = Encoding.ASCII.GetBytes(srch) mm_req.Method = "POST" mm_req.ContentLength = qq.Length mm_req.Timeout = 60000 Dim req_stream As Stream = mm_req.GetRequestStream req_stream.Write(qq, 0, qq.Length) req_stream.Close() Dim mm_resp As HttpWebResponse = CType(mm_req.GetResponse(), HttpWebResponse) Dim readStream As New StreamReader(mm_resp.GetResponseStream, Encoding.ASCII) Dim ch As String = readStream.ReadToEnd ... ... readStream.Close() mm_resp.Close() I have tried various ways of constructing 'srch' but I keep getting back the unfilled form. The server doesnt proceed to the url in the Action field of the form. -- Roger Tag: VPN in VB.NET Tag: 102380
  - 12
    - How can i generate sample xml file with data from xsd schema? How can i generate sample xml file with data from my xsd schema? Regards, Pawel Tag: VPN in VB.NET Tag: 102379
  - 13
    - UI.WebControls TreeView Hello. I have trouble with the microsoft treeview. When I run my project local everything seem to work. When I upload the project to the server I do the following. - Release project - Copy Project. (Only files needed to run this application - Upload the project to the server. When I open the webpage with my project och open the page with the treeview I only see text. Like this Publika bilder Flags 121.gif 134.gif canada.gif china.gif flag.gif flags_1142.gif flags_1143.gif flags_1144.gif flags_1145.gif france.gif isril.gif mexico.gif No nodes...... Regards... Tag: VPN in VB.NET Tag: 102377
  - 14
    - Sending email with attached files via WebDAV for Exchange Hi all, Anybody know how to send email message with attached files via WebDAV for Exchange (MS Exchange 2003 Server). Please, please, please! Need help! ASAP!!!! Tnx, Lev Tag: VPN in VB.NET Tag: 102376
  - 15
    - Security Appl. Block using AzMan Hello All, I have assigned a task to create a security application block using Authorization Manager/ADAM. In abstract all roles and operation would be saved in Authorization Manager (AzMan) and Main page would be shown based on roles and operations user is assigned to using security application block. In this regard, if any one has any article/step-by-step guide or any informative document, please share with me. cheers! iusfani Tag: VPN in VB.NET Tag: 102373
  - 16
    - Difference in XML serialization between Win 2000 and Win XP ? Hi, I'm getting some very odd (to me atleast) results when writing a serialized object to disk as an xml file. It works correctly in WinXP but not in Win 2000. This is the code: XmlSerializer x = new XmlSerializer( typeof(OptionsHolder) ); TextWriter writer = new StreamWriter( "serversettings.xml" ); x.Serialize( writer, opt ); writer.Close(); and the object has the following class: public class OptionsHolder { public int timeout; public string lastrapportdate = ""; public string lastprintdate = ""; public bool deleteNonConfirmed = true; public string defaultProject = "obevakad"; public string [] watchprinters; // = new string[256]; // Max 256 skrivare på en server public string [] dontwatchprinters; // = new string[256]; // Max 256 skrivare på en server public string [] ignoreips; // = new string[256]; // Max 256 klienter kan ignoreras public OptionsHolder() { } } On Win 2000 it just refuses to write whatever string is currently present in lastrapportdate. I have verified that there is content in the variable before serializing. All other items get dumped to disk. Result after serializing in WinXP Proffesional <?xml version="1.0" encoding="utf-8" ?> - <OptionsHolder xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <timeout>5</timeout> <lastrapportdate>2005-09-04:21:23</lastrapportdate> <lastprintdate /> <deleteNonConfirmed>true</deleteNonConfirmed> <defaultProject>Obevakad</defaultProject> <watchprinters /> - <dontwatchprinters> <string>Microsoft Office Document Image Writer</string> <string>Apple LaserWriter 12/640 PS</string> </dontwatchprinters> <ignoreips /> </OptionsHolder> Result after serializing in Windows 2000 Pro <?xml version="1.0" encoding="utf-8" ?> - <OptionsHolder xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <timeout>5</timeout> <lastrapportdate /> <temp /> <lastprintdate /> <deleteNonConfirmed>true</deleteNonConfirmed> <defaultProject>Obevakad</defaultProject> <watchprinters /> - <dontwatchprinters> <string>Microsoft Office Document Image Writer</string> <string>Apple LaserWriter 12/640 PS</string> </dontwatchprinters> <ignoreips /> </OptionsHolder> Any ideas? ///. Tom Hellstrom ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Tag: VPN in VB.NET Tag: 102368
  - 17
    - Thread.Start() In the following example, could HasStarted() ever return false (meaning that ThreadJob() would get called *after* Foo() returns)? Basically I don't ever want Foo() to return until after the thread has executed. ------ void Foo() { Thread thread = new Thread(ThreadJob); thread.Start(); if (HasStarted(thread)) { thread.Join(); } } void HasStarted(Thread t) { return t.ThreadState & (ThreadState.Stopped | ThreadState.Unstarted)) == 0; } ------ I ask because I don't know for sure what exactly happens when Thread.Start() is called. Tag: VPN in VB.NET Tag: 102363
  - 18
    - problem with VB code on some machines (.net bug may be) I have made my first visual basic .net 2003 application and I get the following message on 1 of my computers (it works on 3 others). Mailer4u.exe - Common Language Runtime Debuggin Session Application has generated an exception that could not be handled. Process id=0x6b4 (1716), Thread id=0xc70 (3184). Click OK to terminate the application Click CANCEL to debug the application I searched on google and found 1000's of people with the same problem for a range of applications. Every one had different reasons and not one had a working solution / fix. If any body has an idea can you let me know. If you could also email me at d a v i d @ j e m d a m . c o m that would also help (remove all the spaces from the email address first). If someone would like to try my code on their computer and see if they can repeat the problem you can download it here: http://www.mailer4u.com Thanks in advance for any one who can figure it out. David Tag: VPN in VB.NET Tag: 102358
  - 19
    - System.Net.HttpWebRequest - help Thanks folks! I'm new to this. I'm trying to send a username , password to a website from my vb program using httpWebRequest I know how to set up the request and how to send a string via GetRequestStream also how to to get the response. Totally lost on how to send the username, password to the webpage for login. Presently my request returns the html text for the login page. Any help would be welcomed -- Roger -- Roger Tag: VPN in VB.NET Tag: 102350
  - 20
    - Hashtable thread safety? It doesn't seem completely clear to me which operations I can perform while continuing to be thread-safe on a Hashtable. Consider this scenario: Hashtable 'table' contains the following: table[1] = 1 table[2] = 2 table[...] = ... table[Int32.MaxValue] = Int32.MaxValue The following threads are now running against that same table Thread 1: for( int i = -1; i > Int32.MinValue; i-- ) { table.Add( i, i ); } Thread 2: for( int i = 1; i < Int32.MaxValue; i++ ) { table.Remove( i ); } Thread 3: while( true ) { IList list = new ArrayList( table.Keys ); foreach( int number in list ) { Console.WriteLine( number ); } } Obviously this is unusual, but it's something like what I actually have, and I want to know whether or not this is thread-safe or if I need to provide some synchronization. Thanks! Tag: VPN in VB.NET Tag: 102348
  - 21
    - Posting values between pages That ASP.NET pages post to themselves, how do pages share information amoung themselves? As in, if my index.aspx has to post data to nextpage.aspx, how does it happen? Is it left to the developer to persist relevant control values in a state dictionary such as Session and read them back in the target/destination page nextpage.aspx? Tag: VPN in VB.NET Tag: 102346
  - 22
    - SocketException ??? Hi. I have some quite unusual situation at which SocketException is thown while connecting a socket. Generally the aim of application is processes data and send results to a specified IPEndPoint. Since theres small amount of time for processing and sending large amount of data it is logical to split whole process in to few threads. One thread processes data and other sends it. The problem occures when user sets too little time for doing that. At first the thread works fine for about a minute or two, results are being received on another machine event when the speed of whole process is considered to be critical. And then just like that, exception SocketException is thrown while connecting to an IpEndPoint with message that might be translated as "It is usually allowed a single use of socket address". As seen below socket is being shutdown and closed in the end. And it seems like theres absolutely no reason for that exception to catch. Any propositions? Thank you. Error code of exception is 10048 private void Operate() { while (/*There is data to send*/) { Socket socket = null; try { socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); socket.Connect(ipEndPoint); <--------------------------------------------------------------------------Exception: SocketException thrown here !!!!!!!!!!!!! NetworkStream stream = new NetworkStream(socket); BinaryWriter writer = new BinaryWriter(stream); Scan[] scans = null; lock (queue) { scans = queue.Dequeue() as Scan[]; } for (int i = 0; i < scans.Length; i++) { writer.Write(scans[i].Azimuth); socket.Send(scans[i].Data); } if (socket.Connected) { socket.Shutdown(SocketShutdown.Both); } } catch (SocketException e) { msp.Engine.Paused = true; if (MessageBox.Show(msp.Window,"Error occured:\n" + e.ToString() + "\n\nStop process?","Warning",MessageBoxButtons.YesNo) == DialogResult.Yes) { msp.Engine.Launched = false; } else { msp.Engine.Paused = false; } } finally { if (socket != null) { socket.Close(); } } } Tag: VPN in VB.NET Tag: 102345
  - 23
    - System.Threading.Monitor and SendMessage This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C5B066.058A4E30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable We have an application written in c# that uses pinvoke to call = SendMessage to send messages between threads. We also use Monitor class = (via the c# lock keyword) for thread synchronization.=20 I have discovered the following behaviour, which surprised me: 0) Thread1 (T1) creates a NativeWindow, to be used as a SendMessage = target, then calls Application.Run() 1) T1 enters an event handler 2) inside the event handler, T1 enters a lock region (calls = Monitor.Enter), but blocks because another thread (call it T2) has = entered 3) T3 calls SendMessage on the NativeWindow created by T1 4) The message handler for the message sent in 3) is run, while T1 is in = the Monitor.Enter() call. If I do the following experiment, I get different behaviour (code = changes in bold) 0) Thread1 (T1) creates a System.Windows.Forms.Control, to be used as an = Invoke target, then calls Application.Run() 1) T1 enters an event handler 2) inside the event handler, T1 enters a lock region (calls = Monitor.Enter), but blocks because another thread (call it T2) has = entered 3) T3 calls Invoke on the Control created by T1 4) T1 Monitor.Enter() returns (T2 called Monitor.Exit), and ultimately = the event handler T1 is running returns 5) The delegate passed into Control.Invoke() in step 3) runs The behaviour in the 2nd experiment is what I was expecting in the first = experiments' case. It appears, in the first experiments case, that = inside Monitor.Enter(), messages sent by SendMessage are being = dispatched before it returns. Does anyone have any idea what I can do, in the SendMessage case, to get = the behaviour I am seeing using Control.Invoke()? I would rather not use = Control.Invoke() because it has a couple limitations relative to using = SendMessage() (but I may have to...) Thanks for any insights any of you might have. Craig Bryant Senior Software Engineer Tektronix, Inc Beaverton, OR ------=_NextPart_000_0009_01C5B066.058A4E30 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 6.00.2900.2627" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT face=3DArial size=3D2>We have an application written in c# = that uses=20 pinvoke to call SendMessage to send messages between threads. We also = use=20 Monitor class (via the c# lock keyword) for thread=20 synchronization. </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>I have discovered the following = behaviour, which=20 surprised me:</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>0) Thread1 (T1) creates a NativeWindow, = to be used=20 as a SendMessage target, then calls Application.Run()</FONT></DIV> <DIV><FONT face=3DArial size=3D2>1) T1 enters an event = handler</FONT></DIV> <DIV><FONT face=3DArial size=3D2>2) inside the event handler, T1 enters = a lock=20 region (calls Monitor.Enter), but blocks because another thread = (call it=20 T2) has entered</FONT></DIV> <DIV><FONT face=3DArial size=3D2>3) T3 calls SendMessage on the = NativeWindow=20 created by T1</FONT></DIV> <DIV><FONT face=3DArial size=3D2>4) The message handler for the message = sent in 3)=20 is run, <EM>while T1 is in the Monitor.Enter() call</EM>.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>If I do the following experiment, I get = different=20 behaviour (code changes in bold)</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>0) Thread1 (T1) creates a=20 <STRONG>System.Windows.Forms.Control</STRONG>, to be used as an Invoke = target,=20 then calls Application.Run()</FONT></DIV> <DIV><FONT face=3DArial size=3D2>1) T1 enters an event = handler</FONT></DIV> <DIV><FONT face=3DArial size=3D2>2) inside the event handler, T1 enters = a lock=20 region (calls Monitor.Enter), but blocks because another thread = (call it=20 T2) has entered</FONT></DIV> <DIV><FONT face=3DArial size=3D2>3) T3 calls <STRONG>Invoke on the = Control</STRONG>=20 created by T1</FONT></DIV> <DIV><FONT face=3DArial size=3D2>4) T1 Monitor.Enter() returns (T2 = called=20 Monitor.Exit), and ultimately the event handler T1 is running=20 returns</FONT></DIV> <DIV><FONT face=3DArial size=3D2>5) The delegate passed into = Control.Invoke() in=20 step 3) runs</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>The behaviour in the 2nd experiment is = what I was=20 expecting in the first experiments' case. It appears, in the first = experiments=20 case, that inside Monitor.Enter(), messages sent by SendMessage are = being=20 dispatched before it returns.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Does anyone have any idea what I can = do, in the=20 SendMessage case, to get the behaviour I am seeing using = Control.Invoke()? I=20 would rather not use Control.Invoke() because it has a couple = limitations=20 relative to using SendMessage() (but I may have to...)</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Thanks for any insights any of you = might=20 have.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Craig Bryant</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Senior Software Engineer</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Tektronix, Inc</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Beaverton, = OR</FONT></DIV></BODY></HTML> ------=_NextPart_000_0009_01C5B066.058A4E30-- Tag: VPN in VB.NET Tag: 102339
  - 24
    - SqlException: Unknown Error I have some code doing a very simple select "select bonusid from game where gameid=@gameid" that works about 98% of the time, but somewhere around two percent of the time it throws an exception. If I go through the sqlerror's in the exception all it has is the following: Index #0 Message: Unknown error. LineNumber: 0 Source: .Net SqlClient Data Provider Procedure: Not very interesting is it. I've checked that the input is valid and I have no problems running the same query manually. I also have yet to find a consistent way to recreate this error but my clients are having no problems doing it fairly frequently with no rhyme or reason that I can tell. Although there are many clients simultaneously using the server they share one database connection but I am very careful to only use the connection through a wrapper class that Lock()'s the database connection. I'm really lost on this one, has anyone else seen this? I could find next to nothing on google/google groups. Lloyd Christopher SLOW30 Tag: VPN in VB.NET Tag: 102325
  - 25
    - Debugging Problem Hi all, I am trying to debug an application developed by another developer. if i run it in Debug mode(locally), the application hangs and does nothing (basically dies and makes me wanna kill myself),... "does not reach the break point.... nada....." but if I try to run the application from another machine while the application is under debug mode, it hits the break point. Please advice, Stephen Noronha Tag: VPN in VB.NET Tag: 102324
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  - 1
    - Enterprise Library really su#$%"#!"ks Hello, long days these days than i had trying to setting up the Enterprise Library Blocks in the production server. Why? I will told you all my sad history, I had installed in my computer the enterprise library of june with the ilussion than that will keep me away from the database connections problems, scalability problems, and all that things!, and I had tested that in my developer machine, and I dont had these problems, but when I had started to setup the server, wow, what a fu"#$%#$#$!"cking problem, the assemplies of the Enterprise Library doesn't work. I had runned without results the installutil for each assembly, I had compiled in command line the source code of these blocks in the server and i dont had results, i had do everything possible (but not install the Visual Studio 2003), and i dont have positive results. Hey Microsoft guys, what is the problem with yours??, Keep it simple, why the DAAB had worked so good, so easy, and with that enterprise library everithing had changed, and you had send us a stupid problem. For all you gouys, the problem than I got is that message error: The type initializer for "Microsoft.Practices.EnterpriseLibrary.Data.Instrumentation.DataConnectionFailedEvent" threw an exception. Tag: VPN in VB.NET Tag: 102322
  - 2
    - SQL Server Mobile on Tablet PC I'm trying to load data on a SQL Server CE database. Doing it on the Pocket PC takes very long. I though I'd load it on the desktop using the tablet PC API, using Visual Studio 2005 Beta 2 and Sql Server 2005 (Mobile). I'm following instructions provided in the help file for Sql Server 2005 - "Building a SQL Server Mobile Application for Tablet PCs". I'm having 2 problems. 1. I can't find "Microsoft Tablet PC API" under .NET assemblies, to add a reference. 2. I did the rest - added "System.Data.SqlServerCe.dll" as a reference. The application builds fine, but when it runs, it immediately stops with this error: System.IO.FileLoadException was unhandled Message="Could not load file or assembly 'System.Data.SqlServerCe, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)" Tag: VPN in VB.NET Tag: 102321
  - 3
    - Custom TransformerProvider in Configuration Application Block Hello, How can we create a custom TransformerProvider (deriving from = XmlSerializerTransformer with some minor changes) and make it work with = the Enterprise Library Configuration Application Block? Thank you! Best wishes, Alex. --=20 Address email to user "response" at domain "alexoren" with suffix "com" Tag: VPN in VB.NET Tag: 102319
  - 4
    - regex result is it OK to get regex result of pattern which has duplicate reference names like StrDatePattern As String ="\b(((?<year>\d{4})-(?<month>\d{1,2})-(?<day>\d{2}))|{(?<month>\d{1,2}) (?<day>\d{2}), (?<year>\d{4})))"? my code segment StrDatePattern As Sttring ="\b(((?<year>\d{4})-(?<month>\d{1,2})-(?<day>\d{2}))|{(?<month>\d{1,2}) (?<day>\d{2}), (?<year>\d{4})))"? Dim strDate As Sttring = "", _ strYMD As Sttring = "" Dim r as regex = New Regex(StrDatePattern , RegexOptions.IgnoreCase) Dim m as match = r.Match(myStringHoldingDateInfo) If m.Success Then al_posn = m.Index + 1 strDate = Mid(StringIn, al_posn, m.Length) ' works so far strYMD = m.Result("${year)-${month}-{$day}") ' at best, I get the year component only Else al_posn = 0 strDate = "" strYMD = "" End If I did not have much luck using match.result to re-arrange the extracted date string. However I was able to extract the matched date string. I even try with anoth match on strYMD and then use that result to re-arrange the date string and still no luck. What did do wrong? thank you for your time. I was Tag: VPN in VB.NET Tag: 102318
  - 5
    - server side http for a non-web server I'm evaluating using http to carry data between a client and a non-web (C#) server application. This sounds great as the browser already has an http implementation and http is an open protocol. I was expecting to find a server piece that implemented the server side without requiring a full web server. I've looked around and found http.sys which sounded ideal but which doesn't seem have a C# API until Framework 2.0. Is anyone aware of either some kind of a C++ wrapper for http.sys or an alternate http implementation? If not, I can fairly readily build a wrapper on top of existing TCP functionality but I believe in reusing software when possible. I could also introduce IIS and create an ASP.NET "proxy" that could take http POSTS and relay them in the existing TCP format. Thanks Mike Tag: VPN in VB.NET Tag: 102317
  - 6
    - asynchronous logging with enterprise library logging application block. I am trying to use asynchronous logging using MSMQ and I have configured the properties as defined in the help (see below) I don't understand where the property 'MsmqPath' is in the app.config for MSMQDistrbutor.exe is it meant to be an aplication settings or an enterprise library setting in the app.config? I have tried creating an application setting value for it but it still fails to write to the logging destination? Also is this meant to be registered as a service? To choose asynchronous logging. 1.. In the Enterprise Library Configuration Console, expand Client Settings, right-click Distribution Strategies, point to New and then click MSMQ. 2.. Select the strategy and then specify the QueuePath for the strategy. 3.. Select Client Settings, and then modify the DistributionStrategy property to select the MSMQ distribution strategy you created. 4.. Open the MSMQDistributor.exe.config file with the Configuration Console, located in the directory containing the file MSMQDistributor.exe. Modify the MsmqPath property of the MSMQ Distributor Service to match the QueuePath property of the MSMQ distribution strategy you selected in step 2. This distribution strategy will be used for all messages that are not filtered out. Note Do not use the In Process distributor strategy and the MSMQ distributor strategy to log to the same flat file sink. Using both the In Process and MSMQ distributor strategies with the same flat file sink may result in simultaneous attempts to write to the same file. This will result in failure due to the file resource being in use by another process. Has anyone got any ideas? I followed the instructions below to allow for an MSMQ not registered with AD. http://mvwood.com/blogs/blog/archive/2005/03/04/321.aspx Cheers Ollie Riches Tag: VPN in VB.NET Tag: 102316
  - 7
    - Monitoring the existence of multiple files What's the best way to monitor an arbitrary set of files? In a program like a CD burning app, you've got a an explorer-like file system listview that you pick your files from and a listview for the CD compilation. If you populate the CD listview with 100 different files from 100 different folders, is there a good way to monitor any changes to the files in that listview (deletions, renames, moves, etc.)? This is mostly a GUI thing. I can easily check the existence of the files just prior to performing any operations on them, but I'd like to provide realtime feedback to the user so that they know when one of the files they've chosen is unavailable. I know there's the FileSystemWatcher class, but I suspect it's unwise to create 100 FSWs, each monitoring one file per directory. Tag: VPN in VB.NET Tag: 102314
  - 8
    - calling SQLLDR from C# (ASP.NET) Hi, I'm trying to call SQLLDR from ASP.NET (C#) to load data from a text file into a table. I'm not a windows/microsoft person so if you could give me a hint I'd appreciate it. I have tried a few ways to call sqlldr but it looks like the line with sqlldr command is just not being executed... There are no errors... I was told that it very well might be a permissions issue but I'm not sure where to look. I can execute my bat file from a command line with no problems and it works fine. Only from C# it doesn't work Here are my code samples: version 1: --------------- String strRunCommand = "SQLLDR "+p_DbConnection+" data='"+ p_LoadSourcePath+strTxtFileName+ "' control="+strFileType+".ctl log="+strLogFileName+" SKIP=1 ERRORS=10 BINDSIZE=1048576"; System.IO.File.Create(p_LoadDestinationPath+"load_run.bat").Close); StreamWriter sw = new StreamWriterp_LoadDestinationPath+"load_run.bat"); sw.WriteLine(strRunCommand); sw.Close(); System.Diagnostics.Process p = new Process(); p.StartInfo.RedirectStandardOutput=false; p.StartInfo.FileName = p_LoadDestinationPath+"load_run.bat"; p.StartInfo.UseShellExecute = false; p.StartInfo.WorkingDirectory = p_LoadDestinationPath; p.StartInfo.RedirectStandardError = true; p.Start(); p.WaitForExit();//wait with no time limit p.Dispose(); --------------- version 2: --------------- String strRunCommand = "SQLLDR "+p_DbConnection+" data='"+ p_LoadSourcePath+strTxtFileName+ "' control="+strFileType+".ctl log="+strLogFileName+" SKIP=1 ERRORS=10 BINDSIZE=1048576"; System.IO.File.Create(p_LoadDestinationPath+"load_run.bat").Close); StreamWriter sw = new StreamWriterp_LoadDestinationPath+"load_run.bat"); sw.WriteLine(strRunCommand); sw.Close(); System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo("cmd.exe"); psi.UseShellExecute = false; psi.RedirectStandardOutput = true; psi.RedirectStandardInput = true; psi.RedirectStandardError = true; System.Diagnostics.Process proc = System.Diagnostics.Process.Start(psi); System.IO.StreamReader strm = System.IO.File.OpenText(p_LoadDestinationPath+"load_run.bat"); System.IO.StreamReader sOut = proc.StandardOutput; System.IO.StreamWriter sIn = proc.StandardInput; while(strm.Peek() != -1) { sIn.WriteLine(strm.ReadLine()); } sIn.WriteLine("EXIT"); proc.Close(); sIn.Close(); sOut.Close(); --------------- Tag: VPN in VB.NET Tag: 102304
  - 9
    - thread.abort and thread.suspend Hi to all. I have a little problem. I'm working with threads, and I need to abort or suspend them, but many experts dissuade from use Thread.Abort and Thread.Suspend. As I didn't find other way, how can I do? Thanks a lot! Tag: VPN in VB.NET Tag: 102289
  - 10
    - How to control order of properties in a class Hi, I have created a class with some properties Class Manager Private msName a s string Private msSurnaname as string Private mdSalary as double Public Property Name() as string .....Implementation ....Similarly implemented all the properties ...Some functions End Class To make class bindable I created a custom collection class Class Managers Inherits CollectionBase Public Function AddManager() as Manager 'implementation code.... End Function Public ReadOnly Property Item(byval index as integer) as Manager 'implementation code.... End Property End Class When I create instance of Managers class and added some manager objects to it. I tried to bind this to a third party grid (Data grid wont bind). It worked..But my problem is how I can control order of properties in columns. I see Columns in Surname, Name, Salary order...What should I do to ensure that my columns come in Name, Surname abd Salary order? I wonder How dataset achieve this? In dataset you'll always se fields in same order as they appear in XSD schema..Is there any way to achive this functionality? Thanks, Abhishek jain_abhishek_77@yahoo.co.in Tag: VPN in VB.NET Tag: 102285
  - 11
    - Networking program to send multiple files for multiple clients hi I'm writing a small windows service for sending multiple files for multiple clients when the request is got from the client . i need suggestion to implement this concept would you prefer multiple ports to be used to send the files at a time to the requested clients using multithreading? Tag: VPN in VB.NET Tag: 102282
  - 12
    - processModel/memoryLimit Windows Service Can anyone tell me does the memoryLimit attribute in the machine.config also affect Windows Services. I know this does apply to ASP.NET applications, but I am unsure for Windows Services. Thank you Tag: VPN in VB.NET Tag: 102278
  - 13
    - Store date permanently Hi, I'm writing an activation system for a software, which allows a 15 days grace period. Now the question is... how can I store the date? It has to be kept even if the software is reinstalled, and it must not be too easy to find/delete. I could write a hidden file somewhere in the system or hide it in the registry, but if it is a limited XP account, I'm quite limited. Any genious idea!? I tried Isolated Storage, but just moving the assembly files creates a new Isolated Storage, so it's of no use. Thanks! Etienne Getting a beta version out soon... Tag: VPN in VB.NET Tag: 102268
  - 14
    - .NET versions forward compatibility I posted this originally in microsoft.public.dotnet.framework.windowsforms -- but this is probably a better place... I am developing with VS 2003 -- .NET framework 1.1 I want my app to also run on .NET framework 1.0, so I define a .config file with the following: <configuration> <startup> <supportedRuntime version="v1.1.4322" /> <supportedRuntime version="v1.0.3705" /> </startup> </configuration> As a test, I am doing this on a plain-vanilla Windows app -- with a single form and a single textbox. But it does not work, on a .NET framework 1.0. Is there a way to debug a config file? Where should I look to make progress? Tag: VPN in VB.NET Tag: 102265
  - 15
    - Web Service Always returns 404 Hi, I'm using VS2005 beta 2 to make an asp.net web service. When I try to run any webservice (even a helloworld example) I get a 404 error: Server Error in '/QNSEmulator' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. Requested URL: /QNSEmulator/Service.asmx Version Information: Microsoft .NET Framework Version:2.0.50215.44; ASP.NET Version:2.0.50215.44 It started happening when i was trying to publish the website somewhere else on my local machine using the Build>>Publish ... thing. Does anyone know how i can fix this? Will uninstalling and reinstalling VS do anything? Tag: VPN in VB.NET Tag: 102264
  - 16
    - Creating the Double2 type Hi, I have some problems with the default rounding method of C# check an earlier post of my : http://groups.google.be/group/microsoft.public.dotnet.framework/browse_frm/thread/12ed0c44b2ffbddf/a410c5e788c35f06?l=nl#a410c5e788c35f06 To create a workaround for this problem, I wan't to create my own double type ! the 'Double2' would act like a standard double but when assinging a value to it, it will always my own rounding method to round the value to 2 decimals. Double2 d = 1.235; d -> 1.23; How can I create my own type like this ? Kind regards Frank Vandelinden Tag: VPN in VB.NET Tag: 102260
  - 17
    - Banker's Rounding by default, a big mistake !! Check the following example: it's a simple presentation of a ticket. double[] lines = new double[5]; //Set some VAT's lines[0] = 1.245; lines[1] = 1.246; lines[2] = 1.241; lines[3] = 1.275; lines[4] = 1.255; //Print and calc total double tot = 0; foreach (double val in lines) { tot += val; Console.WriteLine(" {0:0.00}", val); } Console.WriteLine("-----"); Console.WriteLine(" {0:0.00}", tot); Console.ReadLine(); This is the result : 1,25 1,25 1,24 1,28 1,26 -------- 6,26 Now take our your calculator (or excell if you like) an add the 5 lines manualy ! Your result wil be 6.28. -> 0.02 difference !!!!!!!!! If I give this ticket to a client he demands to now where the 0.02 euro has gone to. I know this has to do with the way C# round's its doubles (it is using the Banker's Rounding method) What i don't understand is why it's the default. To put it simple : How do I explain to someone (that is not a computer wiz), that 1 + 1 = 1.1 ???? Kind Regards Frank Vanderlinden Tag: VPN in VB.NET Tag: 102256
  - 18
    - web.config file hi i have a web.config file that specifies the connection string for my database. the database server on the ISP is using a different port than 1433. how do i specify in the connection string to use a specific port number? i tried the <ip address>:<port number> and that didn't work. any ideas? thanks Tag: VPN in VB.NET Tag: 102251
  - 19
    - Q re class layout with embedded structs A friend and fellow programmer asked, and I didn't know the answer: When a CLR class contains fields of non-scalar types (structs, say), are these structs then laid out in memory immediately within the class instance image, or are they converted implicitly into reference types and only references to instances of these stored in the class instance? According to him, the reflection APIs leave the impression that the latter takes place, whereas the SOS documentation suggests the former. To clarify, I'm referring to fields of types that are not usually reference types (structs) as opposed to arrays and strings that are of course always stored by reference. TIA - Per Tag: VPN in VB.NET Tag: 102250
  - 20
    - Bulk Import - Thread was being Abort I am facing a unique problem where i am reading an XMl stream(8000 records) using open XML into SQL server > The problem is that whenever i execute the stored procedure it starts inserting data but suddenly stops at about 1 min 45-50 secs time. The import stops and the error is "Thread was being aborted". The whole stuff works fine when i connect to the database server from local machine. The database server is located at a remore place and the live application resides in the same place as of the database server. I get this problem when i try doing import logging in to the live server. i dont get this problem when i try doing this locally to the remote database server Settings : IIS6.0 and ASP.NET, SQL Server please suggest if there are any web server based settings which are forcing the import to time out. Arnab Kumar Dutta Associate-Technology BMS Team D03044 Tag: VPN in VB.NET Tag: 102247
  - 21
    - Compiler disallows for loop in ASPX ... what's up? Hi All, In effort to write a loop in ASPX to generate a set of labels, I tried this: <form id="Form2" method="post" runat="server"> <script language="C#" runat="server"> int nCols = 8; int nRows = 20; int iHeight = 25; int iWidth = 50; int iVertGap = 5; int iHorGap = 5; for (int iRow=0; iRow<nRows; iRow++) { <asp:Label ID="Lbl" RunAt="server" /> [snip] intending to assign values to the properties of the Lbl object. But the compiler announced: CS1519: Invalid token 'for' in class, struct, or interface member declaration What can I do to generate a bunch of object programmatically in ASPX? Thanks in advance, Richard Tag: VPN in VB.NET Tag: 102244
  - 22
    - Cannot receive data across socket connection by .NET app I have a .NET app that connects to a third-party server on a socket and sends data. This works with a test server on the local network, but does not work across the frame connection to the third-party server. They see a connection, but never see any data coming across. This works with Win32 app using winsock. However, if I use [DllImport] and call a Win32 dll that uses Winsock from my .NET app, it does not work. Is there some setting in .NET framework security or my code that I am missing? Any ideas? Thanks Tag: VPN in VB.NET Tag: 102241
  - 23
    - AppDomain unloading problem Hi, I have a main assembly (assy1). That assembly creates a type in another assembly (assy2). That type creates an AppDomain, load it's parent assembly (assy2) into it and creates a type in the AppDomain. Problem: when I call AppDomain.Unload(_myAppDomain), the application just crash. No exception, no message box. Nothing. Just a plain old "native days" type of crash... I really have difficulties understanding what is happening. What I'm doing is the simplest of all the AppDomain usage scenario, and yet it crash my application... Any idea? Tag: VPN in VB.NET Tag: 102236
  - 24
    - ReaderWriterLock acquire timeout values ??? According to the documentation for the Acquire methods on the ReaderWriterLock class: -1 Infinite. 0 No time-out. > 0 The number of milliseconds to wait. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemthreadingreaderwriterlockclasstopic.asp Does someone want to explain to me the difference between -1 (infinite) and 0 (no time-out)??? I've been using 0, but occasionally get a time-expired exception that traces back to an attempted acquire ??? I thought 0 was /not/ supposed to time out. I've switched to Timeout.Infinite (-1) to see if that fixes the problem. Regardless, I'd like to know the difference(s) between the two values. Tag: VPN in VB.NET Tag: 102235
  - 25
    - Create Access Database with ADOX I'm using asp.net referencing ADOX to create access database on server side. Using C#; Two problems: the ASPNET process doesn't let go of the access file, so I can't access it after I've created the file. I've set the ADOX.CatalogClass variable to null, but it doesn't let go of it...is there a connection close command? second problem, with one of my table create, I have a access YES/NO field. when I have: tableClients.Columns.Append("fldField" + i,DataTypeEnum.adBoolean,0); then later on: cat.Tables.Append((object)tableClients); it gives me: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done. " else if I don't append that column, it runs fine. what's wrong?? Thanx Tag: VPN in VB.NET Tag: 102231

Hi all,

I'm trying to initiate a VPN connection programically from VB.NET. I know
you can Process.Start(the .lnk file), but then I would like to cleanly manage
vpn disconnections.

Has anybody found a way to do that from WMI/net.sockets?

Thanks,

Vince

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