Threading problems with COM Interop

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  - 1
    - Need help passing multiple arguments to an external executable. This is a very simple question, but cant figure out a way to do it. I want to know how to pass multiple parameters as arguments to an external process. I want to call an exe with following arguments :- MyApp.exe "C:\Some Directory\File.txt" /A /T . But the Process.Start or the StartInfo.Argumnets only let you give one string as an argument. Therefore it is not possible to pass a set of arguments like I want (one argument having double quotes). When I pass the above in one string the argument is given as "C:\Some Directory\File.txt /A /T" to the application which is wrong (the application take it as a one parameter and tries to treat is as a file). How can I do it ? Any help greatly appreciated. Tag: Threading problems with COM Interop Tag: 82196
  - 2
    - Application icon WinXP/Win2K Hello, I have app that after lunching it from XP Framework 1.1 it shows icon on taskbar but that same image lunched from Win2K SP4 Framework 1.1 does not shows the icon in the tesk bar. This is a C# UI project. The icon is 16x16, 32x32 16 colors and 256 colors (inside the *.ico file). Any ideas? Robert Tag: Threading problems with COM Interop Tag: 82195
  - 3
    - Optimization Help Needed How could I optimize the following method, whose purpose is to concatenate two byte arrays? public static byte[] ConcatBytes(byte[] a, byte[] b) { byte[] result = new byte[a.Length + b.Length]; uint i; for (i = 0; i < a.Length; i++) { result[i] = a[i]; } for (i = 0; i < b.Length; i++) { result[i + a.Length] = b[i]; } return result; } You see, my program uses this method, and to it, it passes two very large (perhaps in the hundreds of megabytes) byte arrays. This method takes MINUTES to run in this case. Tag: Threading problems with COM Interop Tag: 82184
  - 4
    - Assembly Trust Question I have an executable I have built. On some computers it runs without a problem. On others it will give a security exception. If I run the .NET Configuration wizard and move the level from no trust to the first level up, it will then run the program. How can I workaround this or fix it? I can't find anything. Thank you. Tag: Threading problems with COM Interop Tag: 82181
  - 5
    - Reading Files in Worker Threads I use the following method to read a file: static byte[] ReadFile(string path) { FileStream stream = new FileStream(path, FileMode.Open); BinaryReader reader = new BinaryReader(stream); byte[] result = reader.ReadBytes((int)stream.Length); reader.Close(); return result; } Do I need to lock the file because this method is called from worker threads? I mean, would reading the same file more than once at the same time cause problems? Tag: Threading problems with COM Interop Tag: 82179
  - 6
    - Assembly Trust Question I have an executable I have built. On some computers it runs without a problem. On others it will give a security exception. If I run the .NET Configuration wizard and move the level from no trust to the first level up, it will then run the program. How can I workaround this or fix it? I can't find anything. Thank you. Tag: Threading problems with COM Interop Tag: 82177
  - 7
    - ANN: Reminder Smart Device Programming chat tomorrow Just a note that we'll be hosting an online chat tomorrow concerning Smart Device Programming with Visual Studio .NET 2003! Members of the development team will be on hand ready to answer your questions, so bring 'em on! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Title: Smart Device Programming with Visual Studio .NET 2003 September 9, 2004 10:00 - 11:00 A.M. Pacific time 1:00 - 2:00 P.M. Eastern time 17:00 - 18:00 GMT Please join the members of the .NET Compact Framework and Visual Studio product groups in this live chat regarding the .NET Compact Framework and the Smart Device Programming features of VS.NET. The .NET Compact Framework brings the world of managed code and XML Web services to smart devices, and it enables the execution of secure, downloadable applications on devices such as personal digital assistants (PDAs), mobile phones, and set-top boxes. Please come prepared to ask the tough questions! To join this chat, please log on via the main MSDN chat page at: http://msdn.microsoft.com/chats -- Thanks! Michael Fosmire Community PM/MVP Lead, Windows Embedded This posting is provided AS IS with no warranties, and confers no rights. Tag: Threading problems with COM Interop Tag: 82175
  - 8
    - 1.0 SP 3 & SecurityException I have an application which is a EXE running as an NT service. It accesses an assembly (a1) which in turn accesses types defined in another assembly (a2). All was fine before SP3. Once SP3 is installed, I'm getting SecurityException whenever a1 wants to access types in a2, getting "Request for permission of type xxx failed". Everything is installed local so they all have FullTrust. One more piece of information. The types in a2 are all enumeration if that makes any difference. I caught the SecurityException and examined it, but it didn't give me much information. The PermissionState property is empty and PermissionType is null. Anybody knows if this is something changed/broken in 1.0 SP 3?? Thanks a lot. Tag: Threading problems with COM Interop Tag: 82172
  - 9
    - Net Framework 1.1 SP1/VS.NET 2003 SP Question When I do a windows update I noticed that the Net Framework 1.1 SP1 is available. The question I have is, does that mean that there is a SP available somewhere for Visual Studio.NET 2003? I would think that a SP for both would be required if there are changes to the Framework! I found several early articles on the internet which seem to support this belief; and stated that both the framework and 1.1 service pack were being coordinated with XP's SP2 rollout. However, since the early articles I have not been able to find anything on the Visual Studio.NET 2003 Service Packs! Any ideas? Thanks! Jim Tag: Threading problems with COM Interop Tag: 82169
  - 10
    - FolderBrowserDialog does not display the directory structure after installing .NET Framework SP1 It only contains the buttons to create a new folder, Ok and Cancel. Is there any main thread where issues regarding to SP1 of the .NET Framework 1.1 are assembled? This is the second UI bug I found after installing the SP a few hours ago. If I find more, I would like to remove it, but I don't see an uninstall feature. Is it possible to remove SP1 or do I have to reinstall the framework from scratch? Thanks Michael Tag: Threading problems with COM Interop Tag: 82157
  - 11
    - Is AxImp broken in SP3? Hi, I'm experiencing problems with AxImp.exe since installing framework 1.0 service pack 3. When I try to run AxImp I get: AxImp Error: Invalid Primitive Type: System.Reflection.Missing. Only CLS compliant primitive types can be used. Consider using CodeObjectCreateExpression. If I run AxImp with the /source option I get: AxImp Error: The process cannot access the file "....cs" because it is being used by another process. The errors only occur for one of our OCXs, the others work fine. It definitely seems to be related to the service pack. If I reinstall the framework it works, but if I then install SP3 it breaks again. Is anyone else experiencing this problem? Is there a fix or workaround? Thanks, Al Tag: Threading problems with COM Interop Tag: 82153
  - 12
    - Types vs. Attributes We want to be able to load the classes from a directory that derive from a particular base class. So the question is whether attributes for each deriving class will help us in finding these classes faster or not? We currently have attributes and use those, but it seems very slow to go through all the assemblies and try to get all of the attributes from there. I'm looking for a way to speed this up and wanted to know if anybody is doing something similar and had any pointers as far as speed. Lance Johnson Tag: Threading problems with COM Interop Tag: 82151
  - 13
    - where is the infinite recurssion? hi all this is the original dot net Region.GetRegionScans. i am experiencing StackOverflowException when i call it with a many-rectangle region. i am looking for the recurssion, but i can't find it... can u? public RectangleF[] GetRegionScans(Matrix matrix) { int num4; GPRECTF gprectf1; if (matrix == null) { throw new ArgumentNullException("matrix"); } int num1 = 0; int num2 = SafeNativeMethods.GdipGetRegionScansCount(new HandleRef(this, this.nativeRegion), out num1, new HandleRef(matrix, matrix.nativeMatrix)); if (num2 != 0) { throw SafeNativeMethods.StatusException(num2); } int num3 = Marshal.SizeOf(typeof(GPRECTF)); IntPtr ptr1 = Marshal.AllocHGlobal(((int) (num3 * num1))); num2 = SafeNativeMethods.GdipGetRegionScans(new HandleRef(this, this.nativeRegion), ptr1, out num1, new HandleRef(matrix, matrix.nativeMatrix)); if (num2 != 0) { Marshal.FreeHGlobal(ptr1); throw SafeNativeMethods.StatusException(num2); } gprectf1 = new GPRECTF(); RectangleF[] efArray1 = new RectangleF[num1]; for (num4 = 0; (num4 < num1); ++num4) { gprectf1 = ((GPRECTF) UnsafeNativeMethods.PtrToStructure(((IntPtr) (((long) ptr1) + (num3 * num4))), typeof(GPRECTF))); efArray1[num4] = gprectf1.ToRectangleF(); } return efArray1; } assaf Tag: Threading problems with COM Interop Tag: 82150
  - 14
    - error instaling .Net Framework Im getting this erro when I try to install .Net Framework 1.1 Product: Microsoft .NET Framework 1.1 -- Internal Error 2908. {7D4B5591-4C80-42BB-B0E5-F2C0CEE02C1A} How I resolve this !? Thank you for any help. Anderson Tag: Threading problems with COM Interop Tag: 82136
  - 15
    - Access to installation files from Custom Actions class. Hi all, Is there a way to get the path to the temp directory where installation files are unpacked to? Also is there a way to specify in a deployment package that a file should not be installed anywhere but simply included into the package? E.g. I want to include install_docs.txt (as losely packaged) but it should not be copied to the destination dir during install? I tried setting "Exclude" to true but the file gets excluded from the deployment package completely. Thank you. -Oleg. Tag: Threading problems with COM Interop Tag: 82134
  - 16
    - Reading data from a Socket I have coded a method which reads data from a socket in chunks of 2048 and concatenates those chunks into a string before returning the string to the caller. Almost all the time this code works perfectly well. Occasionally, for a reason I've yet to determine, the returned string seems to be truncated at 2920 characters. This causes problems in another part of my app because the string is Xml, which then fails to be loaded into an XmlDocument object. The code for the method is: Friend Shared Function ReadAllDataFromSocket(ByVal reciever As Socket) As String Const BUFFER_SIZE As Integer = 2048 Dim buffer(BUFFER_SIZE - 1) As Byte Dim bytesRead As Integer = BUFFER_SIZE Dim sTemp As StringBuilder = New StringBuilder(BUFFER_SIZE) Dim DataRead As String = Nothing ' Loop until all data has been read. While (bytesRead = BUFFER_SIZE) ' Read this chunk of data. bytesRead = reciever.Receive(buffer) ' Check that some data was read. If bytesRead > 0 Then ' Add this data to the string builder. DataRead = Encoding.UTF8.GetString(buffer, 0, bytesRead) sTemp = sTemp.Append(DataRead) End If End While ' Return the string to the caller. Return sTemp.ToString() End Function I tried recoding the method so that it reads the data all in one go, using the Available propery of the socket to determine the buffer size. However Available seems to be very unreliable and I've seen many people recommend avoiding it. Does anyone have any ideas as to why I get this problem, or can anyone suggest an alternative way of getting the data out of the socket? Thanks, Ross Tag: Threading problems with COM Interop Tag: 82125
  - 17
    - InvalidCastException I was debugging an error in a C# application (.NET framework 1.1) and I found out a behaviour that I'm not able to understand. In the following code snippets I report 3 cast situations. Could anybody explain me what's going on in case 3 ? ---- case 1 --- Byte k = (Byte)18; Int16 m = (Int16)k; // it works OK !! ---- case 2 --- Byte i1 = (Byte)18; Object o1 = i1; Byte j1 = (Byte)o1; // it works OK !! ---- case 3 --- Byte i2 = (Byte)18; Object o2 = i2; Int16 j2 = (Int16)o2; // InvalidCastException is thrown !!! Thank you very much Luigi Tag: Threading problems with COM Interop Tag: 82119
  - 18
    - Problems with XP style in Windows forms after installing .NET 1.1 SP1 Hi, after installing the SP1 for the .NET Framework 1.1, I have one Windows form that does not display the push buttons in XP style anymore. It worked without problems before and all other controls still have the XP look and feel. Just to make it sure, I verfied that the FlatStyle property is set to System and since yesterday the application looked great. Now it's poor because of a mix between the XP and the classic Windows style. I have other applications that still show the XP style buttons and I'm using the same technique in all applications (as described in KB830033, which so far worked perfectly in COM Addins and in native Windows applications too). Furthermore, I put the classes listed in KB830033 into an assembly that resides in the Global Assembly Cache, so I'm really using the same code in all applications. I don't see any reason why this single application does not display the XP buttons, but it definitely happened after installing SP1. I'm running Windows XP SP1 with all important hotfixes, but have not yet decided to install SP2. Does anyone encountered the same problem and may even have an idea how to fix it? Thanks Michael Tag: Threading problems with COM Interop Tag: 82116
  - 19
    - sqlserverCE sdf Hi Is there a way to generate a sdf -file on a PC, and move it for the SQLServerCE -device for usage there? I've got aprox 100 000 records to insert to the sdf -file, and have built a webservice for fetching chunks of records, inserting it to the sdf. This process takes hours. I guess overhead in Webservices to be the cause, and figure a TCP sollution would speed things up. However, doing all of this - serverside would be the quickest I'm sure. Using a pocketPC/winCE emulator on the server, generating sdf would do the trick I guess. But smells messy. Thanks, Finn Tag: Threading problems with COM Interop Tag: 82112
  - 20
    - dll's in VSNET2003 Compact Framework not registered Hi, After reinsalling VSNET2003 to a new path on my harddrive, the dll's in the Compact Framework are nor re-registered. One of my coworkers experienced the same problem with uninstalling and thereafter installing VSNET2003 to a new path on the harddrive. It is the VSNET2003 installation that "forgets" to re-register the Compact Framework dll's to the new path. His only solution was reinstallation of winXP and thats not an option in my case. OS: Windows XP + SP1a + alle updates I have tried: - uninstallation of VS NET 2003 + manual clean up + installation again - repairs of VS NET 2003 - extern installation of NET Compact Framework 1.0 SP2 - gacutil - but couldnt locate the Compact Framework... - MS RegClean.exe to secure clean up after uninstallation. That provoked Bluemoon!! I cant spare much more time in investigating why this happens, and are quite new to VSNET. I still have Java though - that always works, but I liked the Visual Studio environment to develop in. Can anybody help? Michael Zakarias http://www.wmdata.dk Tag: Threading problems with COM Interop Tag: 82107
  - 21
    - Question about Enumerations When I use enumerations I frequently get compilation errors that state: "Inconsistant Accessibility: <something> is less accessible than <something> I have been getting around this through casting but really don't like that since it defeats enumerations. When I define an enumeration, I place the definition within my namespace. I have even tried placing the enumerations in a seperate .cs file called enumerations and this doesn't help either. Thanks in advance, Eric Tag: Threading problems with COM Interop Tag: 82104
  - 22
    - Is CLR a process or a thread? Is CLR a process or a thread? If it's a process, what's the name? If it's a thread, what's the name of its parent process? Tag: Threading problems with COM Interop Tag: 82095
  - 23
    - Max Length on ProcessStartInfo.Arguments I have noticed that when I try to run a process using ProcessStartInfo to set a really long argument, over 33,000 characters. The whole string doesn't get passed into the process being started. Specifically I am using the System.Diagnosis.Process class to run csc.exe and compile our software product because we have a solution with over 170 projects and it takes 40 minutes to load and build in visual studio. But by parsing the solution and project files I can build it in under 5 minutes with a custom written app. The only problem I have is a couple of projects have so many files in them now, when I create the compile string it cuts off the end of it before starting csc and so that specific project doesn't run. Does anyone have any thoughts on this? Thanks for the help. If you can email me back at jonathan.p.crawford@_TIGER_gmail.com minus the cat, I would appericate it. Tag: Threading problems with COM Interop Tag: 82094
  - 24
    - .Net SP1 Does anyone have the link to the latest service pack? I was able to fin .Net 1.0 SP3 but not .Net 1.1 SP1. Tag: Threading problems with COM Interop Tag: 82088
  - 25
    - VCC+ and .Net assemblies Has anyone used the COM interop to acess .Net asseblies from an unmanaged C++ application? For various reasons we have a legacy VS 6.0 C++ application that we would like to compile with VS .Net and without the /clr switch and using the COM interop use the XML features available in the .Net Framework. Since we are new to .Net we need a cookbook method to expose Ssytem.XML as COM object and then add it to our VC++ project. Any help is greatly appreciated sine we are unable to figure it out from the microsoft documentation. Regards Ron Harter Tag: Threading problems with COM Interop Tag: 82087
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  - 1
    - Accessing POTS modem through framework? Is using an analog modem simply a dead art form or is there still functionality within the .NET Framework for accessing a modem on the computer, sending AT commands and sending/receiving character data? At a very minimum, I'd like to develop a small application that will dial a list of phone numbers from a phonebook and check the modem response strings to see if the call is answered or not. Does anyone have any experience with this using the .NET Framework? Any help/suggestions would be greatly appreciated. Thanks in advance, Patrick Tag: Threading problems with COM Interop Tag: 82086
  - 2
    - Process class and .NET security This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C494E7.226DE480 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi all, I am using the Process class in my application, right at the beginning = of the static Main method. I am using the Process class to know if = another instance of my application is currently running. If my = application is already running, I will exit. This works fine on my development machine. But if I run it on a = deployment machine, I get the error "Common Language Runtime Debugging = Services : Application has generated an exception that could not be = handled". I cannot run the remote debugger since the application is = running in another domain and this domain doesn't trust my dev machine = (which is in another domain) Currently, my only workaround is to comment the code. I am not = satisfied with this behavior. I though of going throught the Win32 API = but I would prefer a .NET solution to my problem. I know the problem is = with the Process class. In the .NET SDK documentation, there is 2 lines = of text about a permission used to access the Process class. How do I = bypass the security? How do I give the required permission to my = application? =20 Thank you, Louis-Philippe Here is the code commented out // Before starting the application, check if the same application // is already running. If so, show a message box to the user // indicating that the application is already running and exit the = program try=20 { Process currentProcess =3D Process.GetCurrentProcess(); foreach (Process process in = Process.GetProcessesByName(currentProcess.ProcessName))=20 { if (currentProcess.Id !=3D process.Id)=20 { LogManager.Log(typeof(ClientApp), APP_ERROR_TEXT, = LogType.Error, LogLevel.High); MessageBox.Show(APP_ERROR_TEXT, APP_ERROR_CAPTION, = MessageBoxButtons.OK, MessageBoxIcon.Error); Shutdown(); return; } } }=20 catch=20 { LogManager.Log(typeof(ClientApp), APP_GETPROCESS_EXCEPTION_TEXT, = LogType.Error, LogLevel.High); } ------=_NextPart_000_0008_01C494E7.226DE480 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 6.00.2800.1264" 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 am using the Process class in my = application,=20 right at the beginning of the static Main method.  I am using the = Process=20 class to know if another instance of my application is currently = running. =20 If my application is already running, I will exit.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>This works fine on my development = machine. =20 But if I run it on a deployment machine, I get the error "Common = Language=20 Runtime Debugging Services : Application has generated an = exception that=20 could not be handled".  I cannot run the remote debugger since the=20 application is running in another domain and this domain doesn't trust = my dev=20 machine (which is in another domain)</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Currently, my only workaround is to = comment the=20 code.  I am not satisfied with this behavior.  I though of = going=20 throught the Win32 API but I would prefer a .NET solution to my = problem.  I=20 know the problem is with the Process class.  In the .NET SDK = documentation,=20 there is 2 lines of text about a permission used to access the Process=20 class.  How do I bypass the security?  How do I give the = required=20 permission to my application?  </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Thank you,</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Louis-Philippe</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Here is the code commented = out</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <P><FONT face=3DCourier size=3D2>// Before starting the application, = check if the=20 same application</FONT></P> <P><FONT face=3DCourier size=3D2>// is already running. If so, show a = message box to=20 the user</FONT></P> <P><FONT face=3DCourier size=3D2>// indicating that the application is = already=20 running and exit the program</FONT></P> <P><FONT face=3DCourier size=3D2>try </FONT></P> <P><FONT face=3DCourier size=3D2>{</FONT></P> <P><FONT face=3DCourier size=3D2>    Process = currentProcess =3D=20 Process.GetCurrentProcess();</FONT></P> <P><FONT face=3DCourier size=3D2>    foreach (Process = process in=20 Process.GetProcessesByName(currentProcess.ProcessName)) </FONT></P> <P><FONT face=3DCourier size=3D2>    {</FONT></P> <P><FONT face=3DCourier = size=3D2>        if=20 (currentProcess.Id !=3D process.Id) </FONT></P> <P><FONT face=3DCourier = size=3D2>       =20 {</FONT></P> <P><FONT face=3DCourier=20 size=3D2>          &nbs= p;=20 LogManager.Log(typeof(ClientApp), APP_ERROR_TEXT, LogType.Error,=20 LogLevel.High);</FONT></P> <P><FONT face=3DCourier=20 size=3D2>          &nbs= p; MessageBox.Show(APP_ERROR_TEXT,=20 APP_ERROR_CAPTION, MessageBoxButtons.OK, = MessageBoxIcon.Error);</FONT></P> <P><FONT face=3DCourier=20 size=3D2>          &nbs= p; Shutdown();</FONT></P> <P><FONT face=3DCourier=20 size=3D2>          &nbs= p;=20 return;</FONT></P> <P><FONT face=3DCourier=20 size=3D2>        }</FONT></P> <P><FONT face=3DCourier size=3D2>    }</FONT></P> <P><FONT face=3DCourier size=3D2>} </FONT></P> <P><FONT face=3DCourier size=3D2>catch </FONT></P> <P><FONT face=3DCourier size=3D2>{</FONT></P> <P><FONT face=3DCourier size=3D2>    =20 LogManager.Log(typeof(ClientApp), APP_GETPROCESS_EXCEPTION_TEXT, = LogType.Error,=20 LogLevel.High);</FONT></P> <P><FONT face=3DCourier size=3D2>}</FONT></P> <DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML> ------=_NextPart_000_0008_01C494E7.226DE480-- Tag: Threading problems with COM Interop Tag: 82085
  - 3
    - Globalizing declaration of OleDbConnection and OleDbCommand Hello. I'm working in C#. I have a form in which I bind data to a grid inside the Page_Load method (constructor? sorry, don't quite have the lingo yet) The form also includes a textbox. Depending on what the user types into the textbx, I repopulate the grid, i.e. rebind new data to it. I would like not to have to include the following two lines in both Page_Load and in the event handler I wrote for the text box: OleDbConnection MyConnection = new OleDbConnection OleDbCommand MyCommand = new OleDbCommand(); I'm looking to broaden the scope of these declarations to cover both of the above situations, but don't quite know where to put the declarations. Thoughts? Thanks so much, Google Jenny *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Tag: Threading problems with COM Interop Tag: 82084
  - 4
    - Array.IndexOf() and an array of structs Hi ng, I would like to search an array of structs for an object whose myName field (a string) equals the given input search string. Is this possible to do with IndexOf? Here's an example: --------------------- public struct SomeRecord { string myName; int idata; float fdata; } SomeRecord[] records = new SomeRecord[10]; // Load array with some data... // Look for first SomeRecord object whose myName field equals "John" int index = records.IndexOf("John"); --------------------- TIA. Tag: Threading problems with COM Interop Tag: 82080
  - 5
    - Millionaire at 31 ... on the Internet! Listen to how he is doing it. "Hi, my name is theeb basheer. Since months, I have tried everything, nothing worked out. The Internet is so competitive, I was only a number. Now I?m so excited seeing paychecks from my online business coming in. Everything changed when I read Stephan Ducharme?s course "How to get 1 Million visitors on your website without paying a dime in advertising." If you are tired of working an entire month for 10 or 100 bucks, Click here. Stephan is different. He is a real player, doing it himself à He is getting more than 20,000 visitors raging on his site each day to learn his techniques. He has just created the new rules to online marketing, that?s why everybody is now calling him the "Free Ad Guru". His success his so huge, he paid cash for a Porsche 911 Carrera convertible in 28 days. I personally recommend that you see what he has to say...Today! Click here : http://www.geocities.com/theeb13 Tag: Threading problems with COM Interop Tag: 82076
  - 6
    - Fax from an ASP.NET page via a shared fax printer Can anyone point me in the right direction in able to fax an web page via a shared fax printer? We have a Canon ir3100 multi-function printer and we're able to 'print' Word docs, etc and select to print using its shared fax driver and enter the fax number, which in turn spools it and faxes it off. TIA Dan. Tag: Threading problems with COM Interop Tag: 82066
  - 7
    - difference btw Framework and Framework Redist Hello, i'm wondering what is the difference between .NET Framework 1.1 and .NET Framework Redistribuable 1.1 ??? Tag: Threading problems with COM Interop Tag: 82060
  - 8
    - Event Log .net Class problem hi all. my problem is like this: i'm fetching a security event log messege(Local Computer/DC) ID number 566 into an EntryWrittenEventArgs Object. but when i'm reading the Messege Property, i'm getting %{SomeGuid} instead of the actual information, in the String. i need to search for the Object name from inside the Messege,(a DN of an object) but instead i'm reading those Replacement Strings Instead... i must mention that i'm seeing this problem in event 566 specificlly. on other events like event 560, the information is written correctly. in the Reguler event log viewer, the messege appear correctly. any help will be appreciated. -- Omer Maydan MCSE,Security+ Tag: Threading problems with COM Interop Tag: 82041
  - 9
    - Not support Web Server I have installed the Visual Studio .Net 2003 Professional in Windows 2000 Professional SP4 with IIS 5.1. When I try to open the ASP.NET Web Application project in Visual Studio 2003, the following error displayed. "Visual Studio .NET has detected that the specified Web Server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web Applications or services." Anyone knowing what is the reasons and solutions. Thank you. - Dennis - Tag: Threading problems with COM Interop Tag: 82039
  - 10
    - Metafile problem I am having a problem using DrawImage to scale metafiles. Here is what I am doing: Metafile mapImage = new Metafile("C:\\image.wmf"); If I draw the entire metafile it draws correctly: g.DrawImage(mapImage, 0, 0); If I try to scale the metafile into the graphic, it does get scaled correctly but tho origin is moved so what gets drawn in position 0,0 is not position 0,0 in the metafile even though both rectangles have 0,0 values. g.DrawImage(bitmapMap, new Rectangle(0, 0, bitmapDest.Width, bitmapDest.Height), new Rectangle(0, 0, mapImage.Width, mapImage.Height), GraphicsUnit.Pixel); In fact the above statement SHOULD display the entire metafile but it only displays a portion on the lower right corener of the metafile. Also, if instead of using a metafile, I use a Bitmap, then I don't have this problem (i.e Bitmap mapImage = new Bitmap("C:\\image.bmp")) Thanks, Jeronimo Tag: Threading problems with COM Interop Tag: 82032
  - 11
    - Can I add a FileSystemWatcher or Timer objects into application dynamically? Can I add a FileSystemWatcher or Timer objects into application dynamically? that's means i don't want to use <object runat="server" scope="application" ...... />. and i just want to use the dynamic methods just like Application["timer1"] = timerobject; to add the object into application and keep all of the events of the objects inside application can be fired up automatically in application behind-end. for example: *Global.asax <script language="C#" runat="server"> public void Application_OnStart(){ FileSystemWatcher watcher = new FileSystemWatcher(); Application.Add("watcher1", watcher); Application["watcher1"].Path = "D:\abc"; Application["watcher1"].NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName | NotifyFilters.Size; Application["watcher1"].Filter = "*.*"; Application["watcher1"].Changed += new FileSystemEventHandler(OnChanged); Application["watcher1"].Created += new FileSystemEventHandler(OnChanged); Application["watcher1"].Deleted += new FileSystemEventHandler(OnChanged); Application["watcher1"].EnableRaisingEvents = true; Application["watcher1"].BeginInit(); } private static void OnChanged(object source, FileSystemEventArgs e) { /* somethings which need to be done */ } public void Application_OnEnd(){ string[] appkeys = Application.Allkeys; foreach (string appkey in appkeys) { if (appkey.StartsWith("watcher")==true) { Application[appkey].EndInit(); Application[appkey].Dispose(); } } Application.RemoveAll(); } </script> *Addwatcher.aspx <script language="C#" runat="server"> pivate void Page_Load(){ FileSystemWatcher watcher = new FileSystemWatcher(); Application.Add("watcher2", watcher); Application["watcher2"].Path = "D:\webcustomer"; Application["watcher2"].NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName | NotifyFilters.Size; Application["watcher2"].Filter = "*.*"; Application["watcher2"].Changed += new FileSystemEventHandler(OnChanged); Application["watcher2"].Created += new FileSystemEventHandler(OnChanged); Application["watcher2"].Deleted += new FileSystemEventHandler(OnChanged); Application["watcher2"].EnableRaisingEvents = true; Application["watcher2"].BeginInit(); } private static void OnChanged(object source, FileSystemEventArgs e) { /* somethings which need to be done */ } </script> *Delwatcher.aspx <script language="C#" runat="server"> pivate void Page_Load(){ Application["watcher1"].EndInit(); Application["watcher1"].Dispose(); Application.Remove("watcher1"); } </script> Can i do like this? and will it be work? Tag: Threading problems with COM Interop Tag: 82026
  - 12
    - Resource Sharing I have noticed that successive calls to ResourceManager.GetObject with the same paramters return references to different objects. This is fine when a resource is only being used once (at a time) or when an application intends to edit the returned object at runtime (and each resource consumer needs it's own copy to edit). Unfortunatly, this is a major problem when you need to share resources. For example, I would like to use embedded resources for textures of objects in my C# based 3D engine. If several objects use the same geometry, textures or other resource, they should all share a reference to the same resource object. Is there functionality in the .NET framework for shared resources? If not, is my only option to code my own SharedResourceManager class? Thanks, Brandon Bloom Tag: Threading problems with COM Interop Tag: 82023
  - 13
    - Failure to install .Net Framework 1.1 sp1.... I was unable to install the sp1 download for .net Framework 1.1. The IE window reloaded as if all was fine but was simply given the info "was not able to install". I then downloaded the executable for the patch and tried installing it manually. The windows installer window popped open and tried to load got about 4 bars lagged for a while than it closed and I recieved the the info "windows installer could not be accessed......". I have searched and searched and have not found any information related to my problem and am at a loss. Please help! Tag: Threading problems with COM Interop Tag: 82019
  - 14
    - PictureBox Locked Property Question I am trying to put a picture on a form and then when the user clicks on the picture/image they can resize that image with the sizer arrows (not the whole form, just the picturebox.) I thought this would be via the locked property , but it did not allow me to click the picture. Does anyone have any idea how I can accomplish this? Thank you. Tag: Threading problems with COM Interop Tag: 82013
  - 15
    - Windows messages to .NET events I recall seeing a document that maps Windows messages to .NET events. Does anybody know where that document might be ? I can not find it under MSDN. Tag: Threading problems with COM Interop Tag: 82010
  - 16
    - Problem installing .NET framework sp1.1 for window server 2003 Hi, I have problem installing the .net framework SP1.1 for window 2003. It just couldn't install and no error code was given. Anyone have idea? thanks Tag: Threading problems with COM Interop Tag: 82009
  - 17
    - How to detect the whole folder's size without using loops and Server.CreateObject()? How to detect the whole folder's size (includes all its subfolders) without using loops and Server.CreateObject()? any APIs (dll file) to import or any assemblies to do that? Tag: Threading problems with COM Interop Tag: 82005
  - 18
    - CryptProtectData key. Hi all, I'm considering to use the Data Protection API CryptProtectData, with the flag set for CRYPTPROTECT_LOCAL_MACHINE. The documentation says this "associates the data encrypted with the current computer instead of with an individual user". On what computer characteristics is the secret key (?) based then? What computer modification may break it? Or is it possible to obtain the same key on another computer somehow (reasonably mimiced hardware, with a ghosted OS perhaps?) Thanks heaps, Koen. -- Notice: Remove packaging material from e-mail address before use. Tag: Threading problems with COM Interop Tag: 82003
  - 19
    - How to launch a windows app I want to launch a windows application from a windows service. The code in the windows service does not need to wait for the windows application to finish running before it continues. What code should I use to do this ? Thanks, Craig Tag: Threading problems with COM Interop Tag: 82000
  - 20
    - Matrix computation in .NET Hi, Does anybody know where I can find the matrix computation components in .NET framework? Do I need to use a third-party one or there's one that comes with the framework libraries? Thanks! Rick Tag: Threading problems with COM Interop Tag: 81992
  - 21
    - I need help to read/write ini files I need help to read/write ini files thanks Tag: Threading problems with COM Interop Tag: 81990
  - 22
    - NullReferenceException using static members in a multi-thread .exe Using a class with static members in a multi-thread executable results in 'System.NullReferenceException' exception. This happen only if the class is not initialized (calling any static member) before trheads start. The exception is not throw if: - If I invoke a static member in main before threads start. - The class is included in the application project and I don't use an external library. Following there is a sample of a solution that have the problem. All happen with: .Net Framework 1.1.4322, Windows 2000 SP4, Visual Studio .Net 2003 7.1.3088. Any help would be appreciated. Thanks Tag: Threading problems with COM Interop Tag: 81985
  - 23
    - New to dot net Dear friends, I am a fresh candidate who like to learn dot net. Is there any free downloads so that i can do some sample programs and run it.or is there anyother way to learn it thru net. Please guide me. thanks. Tag: Threading problems with COM Interop Tag: 81979
  - 24
    - It's Bug? Or it's high way of thinking? I'm write string in textfile in this sample. When it done, i mast have three files. Every file mast contain one string. Realy only one file contain string, what maked inside of my metod (Write). vbc-compiler don't say about erros. When i define variable as class-field, StreamWriter to act very strange. It didn't write string in file! Why? It's Bug? Or it's high way of thinking? May be needs any qualifier before class-fields? Help me please:) '--------------------------- Imports System.IO Imports System.Text Imports SC = System.Console Module Simple Sub Main() Dim rez As Object = (New TestGuiLog("StreamWriterP.txt")).Write("StreamWriterDemoP") End Sub End Module Public Class TestGuiLog Friend m_swp As StreamWriter Friend m_swf As StreamWriter Sub New() End Sub Sub New(ByRef pstr As String) m_swf = New StreamWriter("StreamWriterF.txt", True) m_swf.WriteLine("StreamWriterDemoFC on {0}", DateTime.Now) m_swp = New StreamWriter(pstr, True) SC.WriteLine("This is constructor with " + pstr ) End Sub Function Write(ByVal pstr As String) As Integer If Not (m_swp Is Nothing) Then SC.WriteLine("Begining metod with " + pstr ) m_swp.WriteLine( pstr + " on {0}", DateTime.Now) m_swf.WriteLine("StreamWriterDemoFM on {0}", DateTime.Now) Dim sw As New StreamWriter("StreamWriter.txt", True) sw.WriteLine("StreamWriterDemo on {0}", DateTime.Now) sw.Close() SC.WriteLine("End metod with " + pstr + " Ok:)") Else SC.WriteLine("End metod with " + pstr + " bad:(") Return 0 End If Return 1 End Function Protected Overrides Sub Finalize() If Not (m_swf Is Nothing) Then m_swf.Close() m_swf = Nothing End If If Not (m_swp Is Nothing) Then m_swp.Close() m_swp = Nothing End If SC.WriteLine("This is dectructor:)") End Sub End Class Tag: Threading problems with COM Interop Tag: 81978
  - 25
    - Form deserialization Hi, i'm working in a form generation tool=2E I've got a base class= TpForm to build all the windows in the application and now i= want to be able to design subforms, but the problem is that= these subforms are downloaded by reflection from different= repositories in design and run-time; so, what i've done is build= a custom TpFormSerializer that replace the codeDOM object= creation expresion in InitializeComponent(), and attachi it to= TpForm class=2E For example, if i have the line this=2ESUBV194i1 =3D new= Fujitsu=2ETpnet=2EUser=2EInterface=2EWin=2ESUBV194i1() this would be replaced with this=2ESUBV194i1 =3D AddSubForm("SUBV194i1", "SUBV194i1"); and i also change the subform declaration statement, so subform= type dependence is not neccesary in the designer project, in= this way: private Fujitsu=2ETpnet=2EUser=2EInterface=2EWin=2ESUBV194I1= SUBV194i1; with private TpForm SUBV194i1; The problem is that in the deserialize method i simply invoke the= base serialization manager and it seems that the IDesignerHost's= CreateComponent method is not able to create the subform at= startup, am i missing something? Do i have to custom the deserialization= process as well in any manner? using System; using System=2ECodeDom; using System=2ECodeDom=2ECompiler; using System=2EComponentModel; using System=2EComponentModel=2EDesign; using System=2EComponentModel=2EDesign=2ESerialization; using System=2EDiagnostics; using System=2EDrawing; using System=2EReflection; using System=2EWindows=2EForms; using System=2EText; using System=2EIO; using Microsoft=2ECSharp; using Fujitsu=2ETpnet=2ECommon; namespace Fujitsu=2ETpnet=2EUser=2EInterface=2EDesign { =09/// <summary> =09/// Serializador personalizado del tipo TpForm=2E =09/// </summary> =09public class TpFormSerializer : CodeDomSerializer =09{ =09=09private IDesignerSerializationManager _manager =3D null; =09=09public override object Serialize(IDesignerSerializationManager= manager, object value) =09=09{ =09=09=09CodeDomSerializer baseSerializer =3D null; =09=09=09this=2E_manager =3D manager; =09=09=09object codeObject =3D null; =09=09=09try =09=09=09{ =09=09=09=09//Obtener el serializador por defecto =09=09=09=09baseSerializer =3D= (CodeDomSerializer)manager=2EGetSerializer(typeof(UserControl),= typeof(CodeDomSerializer)); =09=09=09=09//Invocar al serializador por defecto =09=09=09=09codeObject =3D baseSerializer=2ESerialize(manager, value);=09=09=09 =09=09=09=09//Obtenemos el nombre del objeto (ventana) =09=09=09=09string name =3D= value=2EGetType()=2EGetProperty("Name")=2EGetValue(value,= null)=2EToString(); =09=09=09=09//Obtenemos la declaraci?n del tipo del contexto =09=09=09=09CodeTypeDeclaration typeDeclaration =3D= (CodeTypeDeclaration)manager=2EContext[typeof(CodeTypeDeclaration)= ]; =09=09=09=09//Interceptamos el ?rbol de c?digo que declara el objeto =09=09=09=09TraceCode(typeDeclaration); =09=09=09=09typeDeclaration =3D= (CodeTypeDeclaration)SerializeFormDeclaration(typeDeclaration,= name); =09=09=09=09TraceCode(typeDeclaration); =09=09=09=09//Interceptamos el ?rbol de c?digo que crea el objeto =09=09=09=09codeObject =3D SerializeFormCreation(codeObject, name); =09=09=09} =09=09=09catch(Exception e) =09=09=09{ =09=09=09=09MessageBox=2EShow("iTool - Error serializando ventana: {" += e=2EMessage + "}"); =09=09=09} =09=09=09return codeObject; =09=09} =09=09public override object= Deserialize(IDesignerSerializationManager manager, object= codeObject) =09=09{ =09=09=09object objResp =3D null; //=09=09=09try //=09=09=09{ =09=09=09=09//Obtener el serializador por defecto =09=09=09=09CodeDomSerializer baseSerializer =3D= (CodeDomSerializer)manager=2EGetSerializer(typeof(UserControl),= typeof(CodeDomSerializer)); =09=09=09=09TraceCode(codeObject); =09=09=09=09CodeTypeDeclaration typeDeclaration =3D= (CodeTypeDeclaration)manager=2EContext[typeof(CodeTypeDeclaration)= ]; =09=09=09=09//Invocar la deserializaci?n b?sica =09=09=09=09objResp =3D baseSerializer=2EDeserialize(manager, codeObject); //=09=09=09} //=09=09=09catch(Exception e) //=09=09=09{ //=09=09=09=09MessageBox=2EShow("iTool - Error deserializando ventana: {" += e=2EMessage + "}"); //=09=09=09} =09=09=09return objResp; =09=09} =09=09 =09=09#region Private methods =09 =09=09private object SerializeFormCreation(object codeObject, string= name) =09=09{ =09=09=09CodeStatementCollection tree =3D= (CodeStatementCollection)codeObject; =09=09=09foreach(CodeStatement statement in tree) =09=09=09{ =09=09=09=09if(CheckForCreationStatement(statement, name)) =09=09=09=09{ =09=09=09=09=09//Creaci?n de la llamada al m?todo personalizado que crea la= ventana =09=09=09=09=09CodeMethodInvokeExpression methodInvoke =3D new= CodeMethodInvokeExpression( =09=09=09=09=09=09new CodeThisReferenceExpression(), =09=09=09=09=09=09"AddSubForm", =09=09=09=09=09=09new CodeExpression[] {new CodePrimitiveExpression(name),= new CodePrimitiveExpression(name)}); =09=09=09=09=09//Reemplazar parte derecha de la sentencia de asignaci?n =09=09=09=09=09((CodeAssignStatement)statement)=2ERight =3D methodInvoke; =09=09=09=09=09break; =09=09=09=09} =09=09=09} =09=09=09//Retornar arb?l de c?digo de la ventana =09=09=09return codeObject; =09=09} =09 =09=09private object SerializeFormDeclaration(object codeObject,= string name) =09=09{ =09=09=09if(codeObject is CodeTypeDeclaration) =09=09=09{ =09=09=09=09string comment =3D "El c?digo de esta pantalla ha sido generado= de forma autom?tica con la herramienta "; =09=09=09=09comment +=3D "\"iTool - Dise?ador de ventanas\""; =09=09=09=09CodeTypeDeclaration tree =3D (CodeTypeDeclaration)codeObject; =09=09=09=09tree=2EComments=2EClear(); =09=09=09=09tree=2EComments=2EAdd(new CodeCommentStatement(comment));=09=09=09=09 =09=09=09=09foreach(CodeMemberField field in tree=2EMembers) =09=09=09=09{ =09=09=09=09=09if(CheckForCodeMemberField(field, name)) =09=09=09=09=09{=09=09=09=09=09=09 =09=09=09=09=09=09field=2EType =3D new CodeTypeReference("TpForm"); =09=09=09=09=09=09break; =09=09=09=09=09} =09=09=09=09} =09=09=09} =09=09=09return codeObject; =09=09} =09=09 =09=09private bool CheckForCreationStatement(object codeObject,= string name) =09=09{=09 =09=09=09bool bResult =3D false; =09=09=09try =09=09=09{ =09=09=09=09if(codeObject is CodeAssignStatement) =09=09=09=09=09 =09=09=09=09{=09=09=09=09=09 =09=09=09=09=09CodeExpression left =3D= ((CodeAssignStatement)codeObject)=2ELeft; =09=09=09=09=09if(left is CodeFieldReferenceExpression) =09=09=09=09=09{ =09=09=09=09=09=09if(((CodeFieldReferenceExpression)left)=2EFieldName=2EEquals(na= me)) =09=09=09=09=09=09=09return true; =09=09=09=09=09}=09=09=09=09=09 =09=09=09=09} =09=09=09} =09=09=09catch(Exception e) =09=09=09{ =09=09=09=09bResult =3D false; =09=09=09=09MessageBox=2EShow("iTool - Error serializando ventana: {" += e=2EMessage + "}"); =09=09=09} =09=09=09return bResult; =09=09} =09=09 =09=09private bool CheckForCodeMemberField(object codeObject, string= name) =09=09{ =09=09=09bool bResult =3D false; =09=09=09string comment =3D "(iTool) Declaraci?n de subventana -" + name= + "-"; =09=09=09try =09=09=09{ =09=09=09=09if(codeObject is CodeMemberField) =09=09=09=09{ =09=09=09=09=09CodeMemberField field =3D (CodeMemberField)codeObject; =09=09=09=09=09if(field=2EName=2EEquals(name)) =09=09=09=09=09{ =09=09=09=09=09=09field=2EComments=2EClear(); =09=09=09=09=09=09field=2EComments=2EAdd(new CodeCommentStatement(comment)); =09=09=09=09=09=09return true; =09=09=09=09=09} =09=09=09=09} =09=09=09} =09=09=09catch(Exception e) =09=09=09{ =09=09=09=09bResult =3D false; =09=09=09=09MessageBox=2EShow("iTool - Error serializando ventana: {" += e=2EMessage + "}"); =09=09=09} =09=09=09return bResult; =09=09} =09=09#endregion =09} } ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>BwC+U94s9Um6CR3dmqlx/Q=3D=3D</Id> Tag: Threading problems with COM Interop Tag: 81974

I am using a third party COM componenet which is not thread safe in a .Net
web application using Interop. When two threads (two requests) are trying to
access the componenet it is giving an error and crashing. It works fine if
the request is made only one at a time. How can I code around this problem
so that only one thread operates on the COM object at one time.

Any help will be greatly appreciated.

Thanks
Rajesh

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Re: Threading problems with COM Interop by Rick

Rick
Thu Sep 09 01:23:39 CDT 2004

Rajesh,

If you have control over the thread that the COM object runs on create that
thread with ApartmentState to STA. This should allow the COM object to work
properly and create individual instances on separaet threads.

This is likely the only way you will get this to work - STA style COM
objects will get corrupted if called from a free threaded environment if
more than one thread accesses this object. STA will make sure that the COM
object always gets marshalled to the thread that created it.

+++ Rick ---

--

Rick Strahl
West Wind Technologies
http://www.west-wind.com/
http://www.west-wind.com/weblog/
http://www.west-wind.com/wwThreads/
----------------------------------
Making waves on the Web

"rajesh.sivakumar" <rajesh.sivakumar@hotmail.com> wrote in message
news:OWca6NjlEHA.3476@tk2msftngp13.phx.gbl...
> I am using a third party COM componenet which is not thread safe in a .Net
> web application using Interop. When two threads (two requests) are trying
to
> access the componenet it is giving an error and crashing. It works fine if
> the request is made only one at a time. How can I code around this problem
> so that only one thread operates on the COM object at one time.
>
> Any help will be greatly appreciated.
>
> Thanks
> Rajesh
>
>

Top

Re: Threading problems with COM Interop by Willy

Willy
Thu Sep 09 16:51:06 CDT 2004

Make sure you set aspcompat attribute to true in your aspx page
<%@ Page aspcompat="true" ...%>

Willy.

"rajesh.sivakumar" <rajesh.sivakumar@hotmail.com> wrote in message
news:OWca6NjlEHA.3476@tk2msftngp13.phx.gbl...
>I am using a third party COM componenet which is not thread safe in a .Net
> web application using Interop. When two threads (two requests) are trying
> to
> access the componenet it is giving an error and crashing. It works fine if
> the request is made only one at a time. How can I code around this problem
> so that only one thread operates on the COM object at one time.
>
> Any help will be greatly appreciated.
>
> Thanks
> Rajesh
>
>

Top