Single instance of application (different users)

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- Previous
  - 1
    - "Cross-thread operation not valid" without threading!! Hi, In my VB.NET 2005 application I'm generating and sending emails using the outlook-object model (2003). When a mail is Send (MailObject_Send), I raise an event in a global class, that is caught by all my forms that than refresh the lists with emails. But on the moment I do a MyDataGrid.DataSource = nothing, I get this "Cross-thread operation not valid"-exception: The problem is: I'm not using delegates, backgroundworkers or whatever! Why does this happen? and what is the solution? Thanks a lot in advance, Pieter The full exception: A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll Additional information: Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on. Tag: Single instance of application (different users) Tag: 114960
  - 2
    - Failed to partially bind to "System.String, mscorlib" Hi, I got an exception with the message below, when I'm trying to start my application. "Could not load a type. Failed to partially bind to "System.String, mscorlib". " I did a search on the net, and found no clue. Has anyone seen similar problem, or any clue? Thanks J Tag: Single instance of application (different users) Tag: 114954
  - 3
    - Clipboard.GetData is always returning null My objects seem to be put into the clipboard ok and Clipboard.ContainsData() is returning true but when I GetData() the object returned is null. What am I doing wrong?? Tag: Single instance of application (different users) Tag: 114948
  - 4
    - what permissions does a windows service need to execute another process? System.Diagnostics.Process process = System.Diagnostics.Process.Start(info); just local administrator? any specific permitions? what permissions does a windows service need to execute another process? System.Diagnostics.Process process = System.Diagnostics.Process.Start(info); just local administrator? any specific permitions? Tag: Single instance of application (different users) Tag: 114931
  - 5
    - System.Diagnostics.Process.Start fails on windows server 2003 System.Diagnostics.Process.Start fails on windows server 2003 the process returns process.ExitCode == 0 but executing any process with System.Diagnostics.Process.Start on windows xp works fine. anything to do different for windows server 2003? some special permission for the process that executes another executable with System.Diagnostics.Process.Start ?? here is the code: System.Diagnostics.Process process = System.Diagnostics.Process.Start(info); // could be any executable file even notepad.exe process.WaitForExit(); if(process.ExitCode != 0) { throw new Exception("unable to execute"); } Tag: Single instance of application (different users) Tag: 114927
  - 6
    - POS System I would like to create a Point Of Sale System. Is there a website that sells the interface between a POS Cash register and .NET? Thanks for the help Tag: Single instance of application (different users) Tag: 114925
  - 7
    - non blocking socket exception When using .net remoting over tcp what could cause the non blocking socket exception error. I receive the error at diffrent times. Ricky Tag: Single instance of application (different users) Tag: 114923
  - 8
    - Generate .NET types from C header file? Hi all, The question of reusing C header files in C# comes up frequently and there's really no general solution. I do have a specific problem that I think can be solved and I'd like to get some feedback on. I have a C# app that communicates with an embedded C app via UDP packets. I have to ensure that both sides see the exact same data structure. I know how to do this by defining classes with attributes in C# and defining the appropriate header and compiler switches on the embedded system. I'm wondering if I can have a single source that defines the structure for both systems. Right now I can envision the following solutions: 1) Write a utility that parses the C header and generates the C# class definition. 2) Write a utility that parses some other file format (XML, etc.) and generates both the header and the C# class definition 3) Use C++/CLI to somehow generate a .NET type that gets imported into the C# app. Solutions 1) and 2) are doable but seem kind of tedious and boring. Anyone know if tools like this exist? The C headers have not been written yet and they will be quite simple. No need to parse exotic C constructs. Solution 3) seems a little more interesting but is it doable? Thanks for any comments, Andrew Queisser Tag: Single instance of application (different users) Tag: 114920
  - 9
    - 2.0: Nested configuration data Hi, I'm trying to specify multiple child collection under a ConfigurationSection. I have <asystems name="pippo"> <asystem newName="Production"/> <asystem newName="dev"/> <anotherItem newName="yuk"/> <anotherItem newName="yuk111"/> </asystems> It seems that only one colleciton colud be specified, [ConfigurationProperty("", IsDefaultCollection = true)] public SystemsCollection Systems { get { return (SystemsCollection)base[""]; } } To retrive the simpler config <asystems name="pippo"> <asystem newName="Production"/> <asystem newName="dev"/> </asystems> with a given name like [ConfigurationProperty("asystem", IsDefaultCollection = false)] public SystemsCollection Systems { get { return (SystemsCollection)base["asystem"]; } } did not work. Any idea? -- Carlo Folini Tag: Single instance of application (different users) Tag: 114919
  - 10
    - .NET 1.1 created event log has only "Not available" properties We are using VB.NET 2003 Diagnostics.EventLog class on Windows 2000 to create our own custom event log. When using Computer Management and doing properties on the event log it only displays "Not available" for the Size, Created, Modified, and Accessed attributes. The event log is working just not the display of the attributes mentioned above. Does anybody know how to resolve this? -- Thanks, Tim Tag: Single instance of application (different users) Tag: 114917
  - 11
    - resource leak issues in win xp sp2 w .net 2.0 Hi, we are running XP SP2 with .net 2.0 framework installed we also installed a .net application that we wrote and run it occasionally without problem. however at some point (even with our application not running) but quite a few other windows open our workstations seem to run out of resources. as in. we cannot open any more windows (be it explorer windows, IE windows or any program for that matter). or sometimes the window will "half" open (the window will come up but say the IE tool button will be missing). now if we close an existing window (IE, explorer window , calc and program) we can then open another program (like a 1:1) correlation. the other thing i noticed when i was in this state and i say tried to run a ping using cygwin i got win32 error 1114 user32 could not be loaded. we have seen this on 4 machines now. any ideas? Cheers Tony Tag: Single instance of application (different users) Tag: 114914
  - 12
    - no touch request adds .config to url I have a "no touch" deployment app running successfully on XP. All machines use the 1.1 framework. When a url specifying an exe file is entered on an XP machine, the exe is downloaded by the framework (asp.net on the web server machine) and the exe runs on the "client" machine. The first thing it does is download an xml file. This works OK on the XP client. When the same url is entered on a WIN 2000 machine the exe is downloaded but whe it attempts to download the xml file a ConfigurationException is thrown. The client is trying to download a .config file. The .config is tacked on to the end of the url (no matter how many parameters are on the url) and the request fails. BTW, there is no config file associated with the executable. Why is WIN 2000 different than XP in this case? How can I prevent, or catch, this error? Thx Tag: Single instance of application (different users) Tag: 114913
  - 13
    - database connection loss Hallo! I'm working with C# .NET 2.0, implementing Client/Server Applications which are connecting via Network to SQL-Server or Oracle Databases. To stay independent from the underlaying Database I use System.Data.Common.DBConnection and .DBCommand. How can I keep aware from connection losses (network not availeable, db-server not available...)? Are there any strategies to detect this broken connections, and how can I implement reconnecting to the database? The only solution I figured out, is creating a thread which frequntly performs a SELECT 1 (MSSQL) or SELECT 1 FROM DUAL (Oracle) within a try-catch block. When an exception occurs I have to send my other worker-threads to sleep, till I'm able to reopen the database connection and my Select-Statement works again. Then I have to trigger the other threads to reopen their connections and continue working (every thread gots his own DBConnection). For me this seems a little bit to complicated and insecure. It also could happen that one of the worker threads gots a timeout due locking or delayed server responstime, and will loose his Connection in fact of this exception. Such, or similar problems I can not get handled with my solution. Are there any suggestions, patterns or automathisms with ADO 2.0? with friendly regards Martin Tag: Single instance of application (different users) Tag: 114912
  - 14
    - Recreating an event source in a new event log Hi, I recreating an event message source inside a new log but the messages keeps ending up in the old log?! I have simplified my code into this tiny snippet: EventLog.CreateEventSource("mySrc", "myLog1"); EventLog eventLog = new EventLog(); eventLog.Source = "mySrc"; eventLog.WriteEntry("MyEntry1"); eventLog = null; if (EventLog.SourceExists("mySrc")) { EventLog.DeleteEventSource("mySrc"); EventLog.CreateEventSource("mySrc", "myLog2"); } eventLog = new EventLog(); eventLog.Source = "mySrc"; eventLog.WriteEntry("MyEntry2"); eventLog = null; The problem is that both "MyEntry1" and "MyEntry2" is written to "myLog1". I had expected that "MyEntry2" would end up in "myLog2"? What's wrong with this code? regards, martin Tag: Single instance of application (different users) Tag: 114904
  - 15
    - HashTable stores whole object as Key NOT the result of calling GetHashCode on the object when you do myHashTable.Add? Hi All I was testing my understanding of Hashtables and I thought that if I override GetHashCode then i could add an object to hashTable like so: Dim ht As New Hashtable ht.Add(s1, s1) ht.Add(s2, s2) ht.Add(s3, s3) Where s* are instance of a student class that overrides GetHashCode to return the StudentID (code at end of post). I shouldn't add it like: ht.Add(s1.GetHashCode(), s1) as the HashTable calls GetHashCode on the Key for me. This should then store the Hash (The ID returned from GHC) as the Key and the student as the object. However if you loop through the HashTable with: Dim de As DictionaryEntry For Each de In ht Console.WriteLine("Key = {0}, Value = {1}", de.Key, de.Value) Next It shows that the student is stored as both the Key and the Value. Does this mean that you should just add objects to the HashTable like: Dim ht As New Hashtable ht.Add(s1, Nothing) ht.Add(s2, Nothing) ht.Add(s3, Nothing) Seems to me I have misunderstood something here and thw whole point of a HashTable is to use a key to get to a value, was hoping somebody could clear this up for me. Cheers John Student Code Class Student Private _Name As String Private _ID As Integer Private _Age As Integer Public Sub New(ByVal Name As String, ByVal ID As Integer, ByVal age As Integer) _Name = Name _ID = ID _Age = age End Sub Public Overrides Function ToString() As String Return String.Format("{0} is {1} years old and is student no: {2}", _Name, _Age, _ID) End Function Public Overrides Function GetHashCode() As Integer Return _ID End Function End Class Tag: Single instance of application (different users) Tag: 114903
  - 16
    - ExtractAssociatedIcon with UNC path Hi, is there any possibility to call the ExtractAssociatedIcon function using a UNC path? I'm quite confused at the moment, since #1) it seems like some .Net functions do not support UNC path information #2) mapping a share to a drive during runtime is lame and should only be used for "DOS" compatibility etc. Thanks Michael Tag: Single instance of application (different users) Tag: 114901
  - 17
    - opening VS2005 projects with VS 2003 ????? hi everybody, i am new at VS (studying c#) and i eonder that how can i open and COPiLE VS2005 projects withs VS 2003 (on a computer that have not NETFRAMEWORK 2.X only have 1.1) maybe some assembly works but i really woder this.. in my school computers dont have netframework2.x only 1.1. and VS2003 so my projects (created by VS2005) cant be opened in my schools computers..???? :( maybe you say :MSBuild Toolkit bla bla .. thanks for now. [sorry for my bad english-- you are not babysitter so you have not to answer this topic :) ] Tag: Single instance of application (different users) Tag: 114897
  - 18
    - menus Hi all, I am creating an application that has menu options, with a 'Navigation' menu that will re-direct the user to the appropriate form when clicked. I have a Case structure in a class file for the application to access because there are about 12 different forms to choose from. When the appropriate selection is clicked, it will call a method in the aforementioned class file, and pass a global variable to the method. Is the menu index based? I tried to start the Case at: Case = 0 show form a Case = 1 show form b etc. This doesn't work. Any suggestions are appreciated. Thanks! Tag: Single instance of application (different users) Tag: 114888
  - 19
    - Is there any function return the short date format on the regional and Language Options under control panel? Is there any function return the short date format on the regional and Language Options under control panel? Tag: Single instance of application (different users) Tag: 114886
  - 20
    - BeginInvoke on MulticaseDelegate and params keyword... This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C65E1E.09316620 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable Hello, If I use params keyword in my multicast delegate, can I call it using = BeginInvoke? BeginInvoke takes some parameters after params keyword. I'm = confused how to pass them after params... Thanks! Zhenxin Li ------=_NextPart_000_0006_01C65E1E.09316620 Content-Type: text/html; charset="gb2312" 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=3Dgb2312"> <META content=3D"MSHTML 6.00.2900.2802" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT face=3DTahoma color=3D#000080>Hello,</FONT></DIV> <DIV><FONT face=3DTahoma color=3D#000080></FONT> </DIV> <DIV><FONT face=3DTahoma color=3D#000080>If I use params keyword in my = multicast=20 delegate, can I call it using BeginInvoke? BeginInvoke takes some = parameters=20 after params keyword. I'm confused how to pass them after = params...</FONT></DIV> <DIV><FONT face=3DTahoma color=3D#000080></FONT> </DIV> <DIV><FONT face=3DTahoma color=3D#000080>Thanks!</FONT></DIV> <DIV><FONT face=3DTahoma color=3D#000080>Zhenxin = Li</FONT></DIV></BODY></HTML> ------=_NextPart_000_0006_01C65E1E.09316620-- Tag: Single instance of application (different users) Tag: 114885
  - 21
    - Selecting from multiple .NET versions Hi, On my PC I have multiple .NET frameworks selected (1.0, 1.1 and 2.0) In Visual Studio 2003, how do I select which one I use to build my project? Thanks Tag: Single instance of application (different users) Tag: 114884
  - 22
    - SmtpClient uses lowercase headers and an odd date format when sending a MailMessage When you send mail using an SmtpClient object (System.Net.Mail.SmtpClient), the headers it adds like "from:", "to:" and "date:" are in lower case. This seems to be a red flag to some spam filters, so it would be good to be able to specify that they be proper-cased, i.e., "From:", "To:" and "Date:". Also the date format used doesn't include the weekday, e.g., "31 Mar 2006 07:25:10 +1200" instead of the more common "Fri, 31 Mar 2006 07:25:10 +1200" which is also a red flag to some spam filters, and so it would be good if it used the latter. Tag: Single instance of application (different users) Tag: 114883
  - 23
    - Relationship between VS.NET 2005 w/ .NET Framework 2.0 & Smart Cli Hi - Besides ClickOnce, what are the other relationships between VS.NET 2005 w/ .NET Framework 2.0 and Smart Client applications? Does VS.NET 2005 w/ 2.0 framework have other Smart Client development features? thanks, Tag: Single instance of application (different users) Tag: 114879
  - 24
    - Query VMI with limited right users Our application written in VB2005 uses a VMI query to gather some information about the comuter. The method work well when we run the application with a user having administration right. However, when we run the application with a user not having adminstration right (standart user) the following execption is throw. System.Management.Managementexception: Initialization failure at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorcode) at System.Management.ManagementObjectCollection.ManagementObjectEnumerator.MoveNext() Does someone have a idea how to make it works? Here is the code: Dim l_uin as string Dim query As New SelectQuery("Win32_WindowsProductActivation") ' Instantiate an object searcher with this query Dim searcher As New ManagementObjectSearcher(query) ' Call Get() to retrieve the collection of objects and loop through it For Each envVar As ManagementObject In searcher.Options.Get() l_uin = CStr(envVar("ProductID")) Next envVar Regards, Tag: Single instance of application (different users) Tag: 114874
  - 25
    - sending mails bounced to address different from sender address hi all i have a very specific question regarding emails sending and googling doesn't help me is a way exists to send email using .NET framework (System.Web.Mail or something else) and have the "from" address to be X but if the message is bounced from not existing address or whatever, it will be returned to adress Y ? i tried to work by approach described in that article : http://www.codeproject.com/useritems/clean_your_address_list.asp it looks streigforard, but author is using easymail object with System.Web.Mail i did not find any way to set OptionFlags to prevent auto-creation of reverse-path so , my code looks exactly like described in the article, but without OptionFlag and when i send mail to unavailable address, i got bounce to email specified in "FROM" header my code example if it can help : <pre> MailMessage oMsg = new MailMessage(); // bounced emails goes to email specified in oMsg.From // sender name displayed for recipient is oMsg.Headers["From"]oMsg.Headers.Add("Reply-To", oMsgDetails.ReplyTo); oMsg.Headers.Add("From", oMsgDetails.Sender); oMsg.From = txtBounceTo.Text ; //reverse-path oMsg.Subject = oMsgDetails.Subject; oMsg.BodyFormat = MailFormat.Html; oMsg.Priority = MailPriority.Normal; oMsg.To = emailAddress; oMsg.Body = oMsgDetails.Content; SmtpMail.SmtpServer = mailServer; SmtpMail.Send(oMsg); </pre> appreciate any help Thanks Tag: Single instance of application (different users) Tag: 114873
- Next
  - 1
    - GAC and development So we've determined that our assemblies will be getting placed in the GAC going forward. I have done a bit of research and determined a process based on that research on how to manage the assemblies for deployment. Here is my issue, all of the information I find talks about what you should do for deployment to prod, I've not found very much on how to handle this with a team of developers. Where do we put the assemblies? How do we get each of the dev boxes updated on a daily basis? How do each of the projects get updated to reference the current build of the assembly? How do we deploy current builds, but not screw up anything that may be a work in progress on the developers box? E.G. they are responsible for fixes a bug in a shared assembly. Anyone currently using the GAC that would like to share how they accomplish this? Thanks Wayne Tag: Single instance of application (different users) Tag: 114867
  - 2
    - TimeZone.ToLocalTime changed in 2.0? We have code that used an instance of a timezone (for a timezone other than local), and called ToLocalTime(), passing in a UTC time. In version 1.1, the return value was the time in this time zone. I have found that in 2.0, the return value is the local time for the machine. We could do that already with DateTime's ToLocalTime() method. I have found no combination of values for the new DateTime.Kind flag that gets me back to what worked in 1.1. Why was this changed? Was this a bug in 1.1 that was fixed, or is this a new bug in 2.0? Is there a way to do this with DateTime.Kind? Tag: Single instance of application (different users) Tag: 114866
  - 3
    - Datagrid Issue - Limit to numeric input? I have a windows form that contains two datagrids (framework 2.0/). I would like to limit two of the columns to numeric entries only. IE If the user types a letter or anything other than 0123456789. then I want to supress the key. I have tried turning on keypreview on the form (I'm using this method to limit entries in other textboxes/controls) but this method does not capture the keys once the datagrid goes into "edit mode". Ideas on how to do this would be great. BTW: When you set the format option of the datgrid column to format for numeric, it still allows the end user to type alpha characters (a-z). Thanks Rick Tag: Single instance of application (different users) Tag: 114865
  - 4
    - about bi-directionnal remoting Hello, Using .Net Remoting, I need to have several clients which use a object on a server. This server should call method on those clients. It's looking like a bi-directionnal communication. But with .Net Remoting I've only found that schema that is not really nice : C1 Activator.GetObject( Server.Object ) C2 Activator.GetObject( Server.Object ) C3 Activator.GetObject( Server.Object ) Server Activator.GetObject( C1.Object ) Server Activator.GetObject( C2.Object ) Server Activator.GetObject( C3.Object ) Is there a good practice to do bi-directionnal communication with .Net Remoting. I could not find anything on msdn2.microsoft.com, perhaps it is because I don't know the right way ... Have you got idea ? Thanks Cyrille Tag: Single instance of application (different users) Tag: 114859
  - 5
    - Windows Service .NET 2.0 MissingManifestResourceException I have a simple windows service that was created in vs2005, it uses the FileSystemWatcher class to watch for directory changes, and if an error occurs it logs it to the event log. I have used the new Resources designer to define a few common errors I would like to write to the event log. Other than my machine, all clients that are testing are getting the MissingManifestResourceException that is being written to the eventlog, System.Resources.MissingManifestResourceException: Could not find...Make sure"SOXFileSysProperties.Resources.resources" was correctly embedded or linked into assembly "SOXFileSysWatcher" at compile time, or that all the satellite assemblies required are loadable and fully signed. etc..... I have signed my app, ran against FXCop to ensure all requirements are being used. I have a few lines in try/catch that will write as follows catch(MissingMemberException mme) { eventLog1.WriteEntry(string.Format(CultureInfo.CurrentCulture, "{0}{1}{2}", mme.ToString(), Environment.NewLine, SOXFileSysWatcher.Properties.Resources.HelpString), EventLogEntryType.Error); } BTW any good reference sites for Windows Service writing, seen Windowsforms.net, asp.net, etc... but can't seem to find anything dedicated to windows services, i.e. WindowsServices.net Thanks for your help Tag: Single instance of application (different users) Tag: 114857
  - 6
    - Reminder: Public NetCF chat today Just a reminder that MVPs will be hosting an online chat this morning concerning Smart Device Programming with Visual Studio .NET. We will be on hand ready to answer your questions, so bring 'em on! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Title: MVP chat: .NET Compact Framework and Smart Device Programming Chat Date: April 11th 10:00am - 11:00am Pacific Time Additional Time Zones: http://www.timeanddate.com/worldclock/fixedtime.html?year=2006&month=4&day=11&hour=10&min=0&sec=0&p1=234 Description: You know them from the newsgroups! You love them for their deep technical answers and charming wit! Please join these amazing Microsoft MVPs in this live chat regarding the .NET Compact Framework and the Smart Device Programming features of VS.NET. Please feel free to bring along your Smart Device Framework questions as OpenNETCF.org will be well represented in this chat. To join this chat, please log on via the main MSDN chat page at: http://msdn.microsoft.com/chats ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-- -- Thanks! Michael Fosmire MVP Lead, Windows Embedded/.NET Compact Framework This posting is provided AS IS with no warranties, and confers no rights. Tag: Single instance of application (different users) Tag: 114856
  - 7
    - win32 in memory drawing Does anyone have a sample code for this? I want to draw an image in memory into another image using C# and win32 gdi.. if its confusing i'll rephrase it. I want to draw many images into one image in memory using win32 gdi (sample using bitblt or any suggested win32 that works the fastest) since the .NET gdi is very slow in drawing graphics in my own opinion. I would really appreciate any help. please any smaple code at all would be very much approciated. Thank You so much in advace. Stan Tag: Single instance of application (different users) Tag: 114848
  - 8
    - Writing into a binary file simultaneously from multithreads... Hi, I'm building an application that use a binary file format with a proprietary format. Files can grow up to several GBytes... The mecanism of building the data is quite complex and I'd like to know if multiple threads can -simultaneously- write into the data file... For example, I know in advance thread one will write the first 100MB, thread two 50 next MB, and so on. Can I write from multiple threads ? What objects Have I to use ? One FileStream and seeking as needing ? One FileStream and several StreamWriters ? etc ... Thanks in advance... Steve Tag: Single instance of application (different users) Tag: 114847
  - 9
    - GDI object usage In my application I use a large number of panels and textboxes. If I set the backcolor to each control, the application requires a large number of GDI objects. They are not freed until Dispose() get called. for (int i = 0; i<1000; i++) { t = new TextBox(); // if I comment this statement, the problem does not occur t.BackColor = Color.Red; Controls.Add(t); } How can I limit the GDI object usage while the controls are shown (so I can't dispose them)? Thanks Davide Tag: Single instance of application (different users) Tag: 114844
  - 10
    - How to block loading of BHO and band objects into explorer.exe process Hello! I have developed a managed BHO and band objects which work almost OK. One of two problems I currently face is that they are always loaded into explorer.exe processs when folder browser window is open (they are not loaded at initial explorer.exe startup at the user session start). IObjectWithSite.SetSite implementation is used for checking if process the controls are in is explorer.exe and if yes the COMException with HRESULT E_FAIL is thrown. This prevents controls from being activated but as assemblies are once loaded into process they stay in there until process ends. .NET band object is not a lightweight component and it should be prevented from being loaded as useless memory garbage. My understanding is that explorer loads data into deafult AppDoamin which just stays there until process terminates. I have tried to call AppDomain.Unload(AppDomain.CurrentDomain) but with no success - as expected. This is obviously a bad solution as any other managed BHOs or band objects would be unloaded in case of success as well. Long reasearch pointed me into the direction of unmanaged solution which uses DllMain return value to prevent loading - false is returned when module is loaded into explorer.exe process. Any ideas how can I accomplish selective loading from managed code only? Cheers Tag: Single instance of application (different users) Tag: 114841
  - 11
    - Newbie to .NETdevelopment - where to start? Can anyone point me in the right direction to start .NET The situation is this, I am a experienced J2EE developer who wants to familiarize himself at a development level (& of course improve my CV content). I have used Visual Basic 6 & Visual C++ for many years but not for the last 4! I want to convert some of my J2EE app's to .NET but need obviously to do some good groundwork first in order to see how it's done in the .NET world - where do I start? Any good books, web sites, newsgroups (apologies if posted to the wrong ones!) etc... anyone could recommend would be greatly appreciated! thanks harry Tag: Single instance of application (different users) Tag: 114840
  - 12
    - Third Party Controls on Appointments things Hi Are there any Third Party Components, conecrning scheduling and task related things ? (Outlook like) I Already found Infragistics (seems like performance is an problem). Which components are good in the look and feel ? Can anyone tell me some more companys with good working controls? Tag: Single instance of application (different users) Tag: 114832
  - 13
    - Component constructor in .NET 2.0 I looked in the documentation for System.ComponentModel.Component's constructor but I only noticed a constructor taking no parameters. My understanding is that there is a second constructor which takes a System.ComponentModel.IContainer interface object. Has this been the case in previous .NET releases and has this changed with .NET 2.0 ? Tag: Single instance of application (different users) Tag: 114824
  - 14
    - Calling all Reflection Experts I want to load a Clickone program using reflection. I tried the following line of code: Dim extAssembly As [Assembly] = [Assembly].LoadFile("C:\Inetpub\wwwroot\test\test.application") but I get The module was expected to contain an assembly manifest. (Exception from HRESULT: 0x80131018) How can I call a ClickOnce application using reflection? John Wright Tag: Single instance of application (different users) Tag: 114817
  - 15
    - Accessing .NET assemblies from classic ASP/VBScript? Hi All, I'm wondering if there is any way to access .NET assemblies from classic ASP/VBScript? We have a legacy app that was written using classic ASP and VBScript, and there's a new facility that one of our developers did in .NET that we'd like to use with our legacy app. Specifically, we have an online signup process that is a multi-page form written using classic ASP. When the user finally completes the signup process, we'd like to package up the form values and send them off to several objects that we have defined in our new .NET DLL. Any thoughts on how to do this? -Josh p.s. please observe Followup-to: microsoft.public.dotnet.general -- thanks! Tag: Single instance of application (different users) Tag: 114815
  - 16
    - Passing an enum to a web method Does anyone know how to pass an enum to a web method? public enum RptSetStatus { PendingApproval, Active, } [WebMethod] public void SetRptSetLoadComplete(Guid oUserInstance, int nRptSetId, RptSetStatus eRptSetStatus) { } Tony Tag: Single instance of application (different users) Tag: 114814
  - 17
    - HttpWebRequest with CookieContainer - not deleting cookie - what is wrong here? when I use HttpWebRequest with CookieContainer object that handles cookies, i make more than one request and needs to handle cookies being added and removed between requests, just like a regular web browser like internet explorer. if I have this cookie header in a response: Set-Cookie: <CookieName>=; path=/;expires=01-Jan-1999 00:00:00 GMT the cookie is not deleted for the next request, and is being sent again with the old value, while should be deleted - and actually is deleted with Internet Explorer as client. is this a bug is there a solution / workaround by manually deleting the cookie? please help! TIA. Tag: Single instance of application (different users) Tag: 114812
  - 18
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  - 19
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  - 20
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  - 21
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  - 22
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  - 23
    - Avoid drag and drop SHDocVw Hello: I'm using an embedded AxWebBrowser in my application but it has one problem : everything you drag and drop over it works, so you can navigate to any link only with drag and drop, and you can open any folder doing the same thing. ¿How can avoid this? I need to make a robust component and drag and drop isn't very secure. Thanks, Juan Tag: Single instance of application (different users) Tag: 114795
  - 24
    - Decode subject line of email? Is it really true that the .net framework does not contain a functions for decoding the subject line of a raw email message? I've found the MailMessage class and the TransferEncoding enumerator, but this can only be used to encode en mail - not decode. (Note: The MailMessage class is new in .net 2.0.) Do I really have to decode these =?iso8859-1?Q? subject strings manually? Tag: Single instance of application (different users) Tag: 114791
  - 25
    - error message Hi, why trying to execute my projet, i have these messages errors: "The file 'filename' cannot be copied to the run directory." "Could not copy temporary files to the output directory" Please can you help me? Liliane TAGU Tag: Single instance of application (different users) Tag: 114790

I use mutex to ensure that my application is only once instanced. It
works fine but only for one user. Second user can run second instance
of app at the same time. I tought that mutex visibility is not limited
by user?
Any suggestions?

Thanx

Drasko

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Re: Single instance of application (different users) by Eugene

Eugene
Thu Apr 13 05:00:10 CDT 2006

Hello!
You wrote on 13 Apr 2006 02:54:49 -0700:

da> I use mutex to ensure that my application is only once instanced. It
da> works fine but only for one user. Second user can run second instance
da> of app at the same time. I tought that mutex visibility is not limited
da> by user?
da> Any suggestions?

Check articles about prefixes for kernel objects (Local\, Global\) in MSDN
library.

With best regards,
Eugene Mayevski

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Re: Single instance of application (different users) by drasko

drasko
Thu Apr 13 05:28:16 CDT 2006

It works!

Thank you

Drasko

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