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- Previous
  - 1
    - Control.Unload event error handling I am running into a issue catching a thrown error in the Control.Unload event. Is it possible to throw an Application error from the Unload event and have the global.asax Application_Error catch it? Here is a code sample, this is in my PageBase.cs private void InitializeComponent() { this.Unload += new System.EventHandler(this.Page_UnLoad); this.Load += new System.EventHandler(this.Page_Load); this.PreRender += new System.EventHandler(this.Pre_Render); } private void Page_UnLoad(object sender, System.EventArgs e) { try { objSession.Save(); // throws an error in my BLL } catch(Exception ex) { throw new ApplicationException(ex.Message); } } So what happens is my BLL throws an error and I can see the error being caught in the try-catch. But the weird thing is it then goes to the objSession.Save() and continues on. It won't get thrown to my global.asax.cs page. protected void Application_Error(Object sender, EventArgs e) { // catch error and log it } Tag: MessageQueue Tag: 76807
  - 2
    - Serving PDF files with SQL through firewall to ASP.Net Hello all, I presently have a SQL Server supplying data using ADO.Net and query strings through a designated SQL port (opened on my Cisco Pix firewall) to an IIS server running my ASP.Net applications and then exposing it all to the web. I want to be able to expose PDF files with the SQL Server that's on this side of the firewall to the IIS ASP.Net application on the other side of the firewall, (hopefully using the same connection strings, port, etc.) The PDF files are on the machine with the SQL Server. I need advise on a basic approach to solve this. Should I BLOB the PDF files (they are big, there are lots of them and they change) ? Can I just store a link in SQL and somehow reference them, yet send them through my open SQL port? Should I "Remote" them somehow or send them "streaming" as binary? It seems there should be some basic design solution here that either SQL Server or .NET provides that I'm not seeing. All help is appreciated. Thanks in advance. Mitch Sanders :? Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com Tag: MessageQueue Tag: 76799
  - 3
    - Inserting references + "using" clauses programmati I'm building and Add In using VS2003 .NET I've been using the file code model to programmatically insert code into source files. So far, so good. However, some of the code I am inserting requires me to import libraries. Thus, my question is really two questions: 1. Is it possible to use the filecodemodel or something similar to insert additional "using" clauses at the beginning of a program? Note: I can already do this for a source file open in the active window, however I wish to be able to do it so several files at once. 2. Is it possible to insert programmatically insert references into a project? I would like to be able to access a custom DLL i have written. I hope someone can help me, as these problems are fairly fundamental to my research work... Thanks Paul Tennent University of Glasgow Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com Tag: MessageQueue Tag: 76798
  - 4
    - Inserting references + "using" clauses programmati I'm building and Add In using VS2003 .NET I've been using the file code model to programmatically insert code into source files. So far, so good. However, some of the code I am inserting requires me to import libraries. Thus, my question is really two questions: 1. Is it possible to use the filecodemodel or something similar to insert additional "using" clauses at the beginning of a program? Note: I can already do this for a source file open in the active window, however I wish to be able to do it so several files at once. 2. Is it possible to insert programmatically insert references into a project? I would like to be able to access a custom DLL i have written. I hope someone can help me, as these problems are fairly fundamental to my research work... Thanks Paul Tennent University of Glasgow Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com Tag: MessageQueue Tag: 76797
  - 5
    - Complex Objects as Hash Keys If I take a complex reference object and make it the key of a hash table, can I be sure that the hash of that object will always remain the same throughout the life of that object? Every reference object has a reference pointer that is, I would guess, some integer. If I'm right, that integer is what gets hashed when you make such an object a key in a hash table. If I'm right, is that integer guaranteed to be immutable throughout the life of the object, or does garbage collection cause a change in this integer, such that the same object now has a new reference number? My concern is that if this reference integer does not remain constant, entries in the Hashtable could become invalid. Randy Neall Tag: MessageQueue Tag: 76794
  - 6
    - Inconsistent results from vb,net and propety page fileversion I need to extract the file version from a file. I'll paste the code below. The problem is that VB returns a value that looks liks this "5.00.2195.6824" and windows returns a value that looks like this "5.0.2195.6824".. It stops the comparisons that I do in the script since its always not a match. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim osname As String = "" Dim servername As String = "wchsms11" Dim scope As New ManagementScope("\\" & servername & "\root\cimv2") Dim objectQuery As New ObjectQuery("select * from Win32_OperatingSystem") Dim searcher As New ManagementObjectSearcher(scope, objectQuery) Dim os As ManagementObject scope.Connect() For Each os In searcher.Get() osname = os("caption") Console.WriteLine(osname) If osname.IndexOf("2000") > 0 Then Call windows2000(servername) End If Next os End Sub Private Sub windows2000(ByVal servername As String) Dim sfile As FileVersionInfo Dim versioninfo As Object Dim version As String versioninfo = sfile.GetVersionInfo("\\" & servername & "\c$\winnt\system32\basesrv.dll") version = versioninfo.fileversion Console.WriteLine(version) Console.WriteLine(versioninfo) If version.IndexOf("2195.6824") < 1 Then Console.WriteLine("notpatched") Else Console.WriteLine("patched") End If End Sub Tag: MessageQueue Tag: 76791
  - 7
    - sn.exe delay signing Hi, is this expected behaviour: I have created a delaysigned assemblies. After that I signed them with sn -R. But what surprises me is that the file time stamp is not changed, even the file was. Is this normal? I would expect to know that the file is altered at different time, why sn.exe is not updating the time stamp? Sunny Tag: MessageQueue Tag: 76790
  - 8
    - Why CurrencyManager? Anybody nows a reason why System.Windows.Forms.CurrencyManager is being called that way? Thanks Tag: MessageQueue Tag: 76789
  - 9
    - Process.Start() C# How would one go about starting a process on a different machine in C#? I see, in the documentation, how to query if a process is running on another machine, but I do not see how to start a process on another machine. Thank you for any advice! Tag: MessageQueue Tag: 76788
  - 10
    - GetTempFileName Why am I receiving the below error when calling - Path.GetTempFileName() The directory name is invalid. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.IO.IOException: The directory name is invalid. Tag: MessageQueue Tag: 76787
  - 11
    - Custom deserialization and CollectionBase Hello, I'm writing a custom container class using CollectionBase and I'm having some trouble with implementing the ISerializable interface so I can have some custom handling on serialization. The problem is, in the deserialization constructor, I can't set the InnerList property of the CollectionBase class as its a read only property. Any ideas? Tag: MessageQueue Tag: 76785
  - 12
    - CollectionBase and custom deserialization Hello, I am writing a custom collection class that inherits from the CollectionBase class, and I have implemented the ISerializable interface as well, because I wanted to provide some custom handling of the serialization. I'm having a problem though, because I can't set the InnerList property of the CollectionBase in the deserialization constructor. Any ideas? Tag: MessageQueue Tag: 76784
  - 13
    - Insert XML into a XmlDocument object I'm trying to insert XML into a XmlDocument that already has XML in it. Does anyone have some c# code examples (vb.net will work) or ideas? Thx...sonny Tag: MessageQueue Tag: 76777
  - 14
    - Interface inheritance? Am I correct that I can't do Interface Inheritance in C#? What I was trying to do is have one interface (which was part of my framework) and then have the application-specific interface inherit from this interface and extend it as needed. I thought my application would only need a reference to the application-specific interface (different assembly) and that the application would have a reference to the framework-specific interface (again, different assembly). Something like the following: Client App ---> references Application assembly (with application interface) --> which references Framework Assembly (with framework interface) ex. Framework Interface: public interface IRemoteObject { DataSet GetData(); DataSet SaveData(DataSet dataSet); } App-specific interface: public interface IMethRemoteObject : IRemoteObject { DataSet GetPatientData(); } However, the Client App can't see the framework interface unless I put a reference in the CLient App to the Framework Assembly. I guess the proper way to handle this is to put a reference to both interfaces, and not inherit one interface from another. I just want to make sure I am understanding what is going on (or not going on in this case). Thanks, Mark Tag: MessageQueue Tag: 76770
  - 15
    - advantages and disadvantages of the import of : microsoft.visualb I had a discusion with a collegue of mine because i use the microsoft.visualbasic.right method . He said i should not do that ... Is he right or not ? Tag: MessageQueue Tag: 76769
  - 16
    - Play music files I have to develop an application in wich I have to play musical file, such as *.mid, *.wav, *.mp3. Is there some class in framework or somewhere that can help me ? Thanks in advance for suggestion Tag: MessageQueue Tag: 76754
  - 17
    - the simplest way for async events? How can i emulate in .net that function: BOOL PostMessage( HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam );I need a simple async event firing for my WindowsForm without any callbacks. What is the simplest way for that?thanks in advSerg. Tag: MessageQueue Tag: 76753
  - 18
    - main menu & imagelist Hello, i'm working to an application for PocketPC2003, developing in c#. I would like to create a manu with an image associated to each menu element? Main manu doesn't support image, is it? Any idea??? Thanks. Tag: MessageQueue Tag: 76752
  - 19
    - Opening ILDASM.EXE programatically using C# Hi, I would like to open ILDASM, programatically. I could use System.Diagnostics.Process.Start("....\ILDASM.eXE"); But in that case i'll have to hard code the path... which i dont want to.... any ideas on how 2 go bout doing this??? thanx in advance, Kamelsh. Cognizant Technology Solutions Tag: MessageQueue Tag: 76743
  - 20
    - System.InvalidProgramException using OpCodes.Ldsfld w/Guid.Empty. All, I am running into an exception using IlGenerator to emit the body of a method. The method takes a System.Guid as the only argument. I am trying to test to make sure that it isn't an empty Guid. So, I write: FieldInfo fi_Empty = typeof(System.Guid).GetField("Empty"); generator.Emit(OpCodes.Ldsfld, fi_Empty); According to what I have read, this should put he value of the static field "Empty" which is of type System.Guid onto the stack. What I get instead is an InvalidProgramException: "The Common Language Runtime has detected an Invalid Program" Can anyone tell me what is wrong with the FieldInfo or the use of the empty Guid? The rest of the method works fine. My forehead and my wall both thank you in advance for any guidance. Tag: MessageQueue Tag: 76741
  - 21
    - VB.NET Assembly denied access to System.Web. Help! I have a VB6 Windows Form application that calls a VB.NET Assembly. I can successfully call any test method in the assembly (like return "hello world"), but one method in the assembly uses calls to System.Web.HttpUtility.UrlEncode. That causes this error to be returned back to the VB6 app: Request for the permission of type System.Web.AspNetHostingPermission, System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 failed. I don't know if it is related to vb6 being the calling app or not. I haven't tried working around vb6 for testing because I have to call it from vb6 anyway. How can I resolve the above problem? I don't know much about .net security configuration to fix this. An old newsgroup post suggested I add this code before the UrlEncode method line, but this didn't help: Dim Perm As New System.Web.AspNetHostingPermission(System.Security.Permissions.PermissionSta te.Unrestricted) Perm.Assert() What can I do to fix this security problem? Tag: MessageQueue Tag: 76728
  - 22
    - dotnetfx.exe for ANSI C ??? Okay somebody tell me I'm not going crazy. I've written a straight ANSI C program using .net devstudio but it won't run on any other machine unless it has dotnetfx.exe installed?? Is this some kind of stupid joke? All I want is a stand alone .exe...why would I want to have my users install more microsoft crap just to run a basic .exe?? Anybody know how to build a real stand alone .exe using .NET devstudio? How stupid can microsoft get? .NET blows... Tag: MessageQueue Tag: 76724
  - 23
    - Inserting a blob into oracle from a file Everytime I try to inset a blob from a file I get the following error. ORA-12571: TNS:packet writer failure. I was able to successful insert a blob from a post to another another page using the PostedFile object. But for some reason this will not work for a file. Below is the code that I tried: // provide read access to the file FileStream fs = new FileStream(newFileName, FileMode.Open,FileAccess.Read); // Create a byte array of file stream length byte[] newFileBuf = new byte[fs.Length]; fs.Read(newFileBuf,0,System.Convert.ToInt32(fs.Length)); //Close the File Stream fs.Close(); try { OleDbConnection cn = new OleDbConnection(strConnect); OleDbCommand cmd = new OleDbCommand("INSERT INTO TESTBLOB (NewFile,ID) VALUES (?, 1)", cn); OleDbParameter prm1 = new OleDbParameter("@NewFile", OleDbType.LongVarBinary, newFileBuf.Length, ParameterDirection.Input, false, 0, 0,null, DataRowVersion.Current, newFileBuf); cmd.Parameters.Add(prm1); cn.Open(); cmd.ExecuteNonQuery(); cn.Close(); } catch(Exception ex) { label1.Text = ex.Message; } when I use replace the top with this: Stream myStream = Invoice.PostedFile.InputStream; byte[] newFileBuf= new byte[Invoice.PostedFile.ContentLength]; myStream.Read(newFileBuf, 0, Invoice.PostedFile.ContentLength); Tag: MessageQueue Tag: 76722
  - 24
    - Can Collection/Array be used as a Trace/Debug Listener? I am a C# newbie. In VB i had developed an infrastructure that allowed recent trace/debug information to be kept in memory. I would like to do similar in .Net. Is it possible? or will i have to write my own code? From what i have read in the Microsoft books and documentation it seems that a Trace Listener can only be a stream, like writing to a disk file. But i don't want to capture all trace events to an external file or db, but store only some trace events in memory so to be available to an error handler. Example, application will retain the last 100 trace events in memory; when exception occurs, central error handler dumps trace information and creates error report. Can this scenario work with the Trace/debug classes? What is the How To? Thank you Tag: MessageQueue Tag: 76721
  - 25
    - EventLog problem When I run the VB=2ENET program below, the entry below appears in= the "Application" log=2E The "ServOneLog" log is created, but it is empty=2E I am trying to= write to the "ServOneLog"=2E Why doesn't this work?? Application log entry: The description for Event ID ( 0 ) in Source ( ServOne ) cannot= be found=2E The local computer may not have the necessary registry= information or message DLL files to display messages from a= remote computer=2E You may be able to use the /AUXSOURCE=3D flag to= retrieve this description; see Help and Support for details=2E The= following information is part of the event: LogWorker succeeded= in writing to ServOneLog=2E=2E Program: Module Module1 Dim el As EventLog Public Const LOG_NAME As String =3D "ServOneLog" Public Const LOG_SOURCE As String =3D "ServOne" Sub Main() Dim appLog As New EventLog("Application") appLog=2EClear() If (System=2EDiagnostics=2EEventLog=2ESourceExists(LOG_SOURCE))= Then EventLog=2EDeleteEventSource(LOG_SOURCE) End If If System=2EDiagnostics=2EEventLog=2EExists(LOG_NAME) Then System=2EDiagnostics=2EEventLog=2EDelete(LOG_NAME) End If If (Not= System=2EDiagnostics=2EEventLog=2ESourceExists(LOG_SOURCE)) Then EventLog=2ECreateEventSource(LOG_SOURCE, LOG_NAME) End If el =3D New EventLog(LOG_NAME) el=2ELog =3D LOG_NAME el=2ESource =3D LOG_SOURCE el=2EWriteEntry(LOG_SOURCE, "LogWorker succeeded in writing= to ServOneLog=2E") End Sub End Module -------------------------------- From: Bob Anderson ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>JODidyvdI02KsawrjFpZkA=3D=3D</Id> Tag: MessageQueue Tag: 76720
- Next
  - 1
    - ECMA-335: How to decode PackedLen MetaData specification (ECMA-335) contain PackedLen values. But PackedLen not described in specification. How to decode it? Thanks, Alex. Tag: MessageQueue Tag: 76718
  - 2
    - Can multiple callers to WaitHandle::WaitAll deadlock? Hi, Can two callers to WaitHandle::WaitAll reach a deadlock if their array's contain the same WaitHandles in different orders? For example Client One: WaitHandle.WaitAll ( new WaitHandle[] { wh1, wh2, wh3 } ) Client Two: WaitHandle.WaitAll ( new WaitHandle[] { wh3, wh2, wh1 } ) Can these two clients reach deadlock if Client One receives the signal for wh1 and Client Two receives a signal for wh1, or will WaitAll protect against this? Thanks, -Mike Tag: MessageQueue Tag: 76717
  - 3
    - Domain property of NetworkCredential class I'm trying to provide flexible support of various HTTP proxy servers in my web client app, and need to understand in what situations the various proxy authentication properties are used... Specifically, what should the Domain property of the NetworkCredential class be set to when using WebProxy? I'm testing against an Apache 2 proxy server, which is set to basic authentication, with the name of its realm set to "Proxy Server". When I don't set the Domain property of my NetworkCredential object, my WebRequest.GetResponse works OK. But when I set Domain to "Proxy Server" (which I expected to be required)... I get HTTP 407. So what exactly does the Domain specify? When is it used? Code fragment below. Thanks, David Thom Dim myWebRequest As WebRequest = WebRequest.Create("http://www.microsoft.com") Dim myWebProxy = New WebProxy myWebProxy.Address = New Uri(http://10.0.2.6) ' the Apache proxy server Dim myCredentials As New NetworkCredential myCredentials.UserName = "user" myCredentials.Password = "password" ' myCredentials.Domain = "Proxy Server" ' GetResponse works if I don't set Domain property myWebProxy.Credentials = myCredentials myWebRequest.Proxy = myWebProxy Dim myWebResponse As WebResponse = myWebRequest.GetResponse() Tag: MessageQueue Tag: 76716
  - 4
    - TypeLoadException / ExecutionEngineException VS2003 $$struct ... bug ? (SOLVED!) Hi, I encountered a bug in VS2003. At a certain moment, when building an executable, the build executable was buggy (.NET 1.1 framework). When running, it immediately (before executing user code) throws a ExecutionEngineException (run in VS2003) or TypeLoadException (run stand-alone). The bug was proven when I ildasm-ed it an tried to ilasm it: ilasm failed. Also, when I solved the problem (by throwing away the obj-directory, so the problem must have been related to the incremental build proces), the differences between the buggy and the correct build became apparent by examining the metadata. It appeared that the good version had a struct in it which was wrapped in a <PrivateImplementationDetails> class, while the bad version was wrapped in my application class. (the good IL is shown at the bottom). This struct, by the way, was autogenerated by the compiler and contains some hardcoded data (a fixed array). Maybe this is of any use to anybody. Kind regards, Edwin van de Burgt. (please reply to the newsgroup only. Above email-address is not used) ----------- .class private auto ansi '<PrivateImplementationDetails>' extends [mscorlib]System.Object { .class explicit ansi sealed nested private '$$struct0x6000034-1' extends [mscorlib]System.ValueType { .pack 1 .size 18 } // end of class '$$struct0x6000034-1' .field static assembly valuetype '<PrivateImplementationDetails>'/'$$struct0x6000034-1' '$$method0x6000034-1' at D_00004260 } // end of class '<PrivateImplementationDetails>' Tag: MessageQueue Tag: 76715
  - 5
    - How to decode PaskeLen? MetaData specification (ECMA-335) contain PackedLen values. But PackedLen not described in specification. How to decode it? Thanks, Alex. Tag: MessageQueue Tag: 76712
  - 6
    - Inserting XML into a XmlDocument object I have a XmlDocument object that has data in it already and I want to add 1 or more sections into the XmlDocument. Are there any c# (vb.net will work) examples or ideas anyone willing to share? Thanks...sonny Tag: MessageQueue Tag: 76711
  - 7
    - Regexp Validation Oh great Regular Expression gurus - I summon thee... I am using the regular expression validator... I know this is probably about as trivial as it gets for someone with regular expression experience, but I don't. I was wondering if someone would be able to create a regular expression (for validating user passwords) that matches the following: All of the following must be true for a match: 6-12 length - Isn't it something like {6,12} Must include 1 or more lowercase - [a-z] Must include 1 or more uppercase - [A-Z] Must include 1 or more numeric - [0-9] That's it, from the little I know, those are the patterns that it should use, but I have no idea how to create the full statement. TIA! JB Tag: MessageQueue Tag: 76710
  - 8
    - Sorting Problem I need to sort an XML subtree using a value in a different matching subtree in the same document. The XSLT syntax I am using is (indented so that sort select and VAL definition line up: <xsl:for-each select='LABITEM0'> <xsl:sort select='ancestor::TABLE/DATA/DIMN[@idx=current()/ @dimn_idx]/DIMN[@idx=$RANKCOL_IDX]/CELL/ITEM[contains($FIGTYPE,@class)][1]' order='descending' data-type='number'/> <xsl:variable name='VAL' select='/TABLE/DATA/DIMN[@idx=current()/ @dimn_idx]/DIMN[@idx=$RANKCOL_IDX]/CELL/ITEM[contains($FIGTYPE,@class)] [1]'/> <xsl:copy> <xsl:copy-of select='@*'/> <xsl:attribute name='ORD'><xsl:value-of select='position ()'/></xsl:attribute> <xsl:attribute name='VAL'><xsl:value-of select='$VAL'/> </xsl:attribute> <xsl:copy-of select='*'/> </xsl:copy> </xsl:for-each> This works fine using another XSLT processor (xsltproc) BUT IS RETURNED UNSORTED (i.e. in original document order) using XslTransform (and also msxml (4.0) from the command line). The VAL attribute is correctly set - so I am pointing to the right values. I've tried other sorts that do not use a path starting at the document root and they seem to work OK. Can anyone tell me why this isn't working - or suggest a sort select syntax that would work? Tag: MessageQueue Tag: 76703
  - 9
    - Debug options Does anyone know a way to NOT have the debugger debug javascript when going through ASP.Net code? I need to debug some code server side but I keep getting caught on some javascript error that never presents itself when running normally but seems to have some problem in the debugger. All I want to do is debug my VB and forget the javascript but it won't let me. I can't even step over the javascript block giving me hell. Tag: MessageQueue Tag: 76699
  - 10
    - serialization bug Hi, Could someone please confirm the following? I think I have found a subtle .NET serialization bug. It occurs when object has a list of items containing another object of the same type and both objects have a non-static member reference to some other static object. In this case, I get an InvalidArgument exception when I try to access the non-static member of the child class. I've included a code sample to clarify. This "bug" is causing a major problem for me. So, if anyone could confirm it or let me know if I'm doing something wrong, I would be very appreciative. Thanks, Aaron Here is the sample [Serializable] public class A { private ArrayList children; private static Pen DPEN = Pens.Black; private Pen pen = DPEN; public A() { children = new ArrayList(); children.Add(new D()); } public void AddChild(A a) { children.Add(a); } public A Child { get { return (A)children[0]; } } public Pen Pen { get { return pen; } } } public class PenSurrogate : ISerializationSurrogate { public void GetObjectData(Object obj, SerializationInfo info, StreamingContext context) { Pen pen = (Pen)obj; info.AddValue("pencolor", pen.PenType == PenType.SolidColor ? pen.Color : Color.Empty); } public Object SetObjectData(Object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector) { return (Pen)info.GetValue("pencolor", typeof(Pen)); } } public Form1() { // // Required for Windows Form Designer support // InitializeComponent(); A a = new A(); A an = new A(); a.AddChild(an); BinaryFormatter bFormatter = new BinaryFormatter(); SurrogateSelector s = new SurrogateSelector(); s.AddSurrogate(typeof(Pen), new StreamingContext(StreamingContextStates.All), new PenSurrogate()); bFormatter.SurrogateSelector = s; MemoryStream stream = new MemoryStream(); bFormatter.Serialize(stream, a); stream.Seek(0, SeekOrigin.Begin); A copy = (A)bFormatter.Deserialize(stream); System.Console.WriteLine(copy.Pen.Color.ToString()); System.Console.WriteLine(copy.Child.Pen.Color.ToString()); //Causes an InvalidArgument Exception } Tag: MessageQueue Tag: 76697
  - 11
    - Problems with Compiling COM - newbie HI, I am having problems trying to compile a vb class, the code is below. For some reason it doesn't recognise the namespaces, Data, or Data.SqlClient. In Visual Studio I have created a reference to System.Data, and appears under references, but I can't seem to create one for System.Data.SqlClient as it doesn't appear in the selection. Another thing I should mention is that I am copying the vb class file from our dev server onto my own machine and compiling it on my machine using the VS.net compiler. I intend to copy and paste the dll into bin on the dev server after. What am I doing wrong?????? Thanks Angela -------------CODE----------------------- Imports System Imports System.Data Imports System.Data.SqlClient Public Class SQLTest Public Shared Sub DeleteService(ByVal name As String, ByVal strConnection As String) Dim conPortal As New SqlConnection(strConnection) Dim cmd As New SqlCommand("AdminDeleteService", conPortal) cmd.CommandType = CommandType.StoredProcedure cmd.Parameters.Add("@communityID", strConnection) cmd.Parameters.Add("@name", name) conPortal.Open() cmd.ExecuteNonQuery() conPortal.Close() End Sub 'DeleteService End Class Tag: MessageQueue Tag: 76695
  - 12
    - Best way to sent byte[] parameter to unmanaged code? Using C#, I want to send a byte array to an unmanaged function with the minimum amount of copies. The array is input only and won't be modified (its copied on the unmanaged side). I'm currently using fixed byte *. My question is: Should I be using In byte[] parameter instead? Ref parameter? fixed( byte *b = byte_array ) { MyUnmangedFunc2( b, byte_array.Length ); } [DllImport("foo.dll")] private static extern unsafe void MyUnmanagedFunc2( byte *val, int count ); --OR-- MyUnmanagedFunc2( byte_array, byte_array.Length ); [DllImport("foo.dll")] private static extern unsafe void MyUnmanagedFunc2( In byte[] val, int count ); I need a solution for both the compact framework and desktop framework. (Don't have to be the same but closer the better) Thanks, Philippe Tag: MessageQueue Tag: 76692
  - 13
    - keybd_event in C# How to use keybd_event api function in c# for combination keys eg. ctrl+shift +s I tried like keybd_event(0x11,0x1D,0,0) keybd_event(0x10,0xAA,0,0) keybd_event(0x53,0x1F,0,0) keybd_event(0x53,0x1F,0x0002,0) keybd_event(0x10,0xAA,0x0002,0) keybd_event(0x11,0x1D,0x0002,0) but it doesn't work -kannan Tag: MessageQueue Tag: 76691
  - 14
    - Stuck on problem using Serialization This is what I have produced so far... <?xml version="1.0" encoding="utf-8"?> <Database xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <Tables> <Table> <NameOfTable>Table</NameOfTable> <Columns> <Column Name="Col_1">New_Col_1</Column> <Column Name="Col_2">New_Col_2</Column> <Column Name="Col_3">New_Col_3</Column> <Column Name="Col_4">New_Col_4</Column> <Column Name="Col_5">New_Col_5</Column> </Columns> </Table> </Tables> </Database> I want <NameOfTable>Table</NameOfTable> in the form of <NameOfTable Name="Table">NewTableName</NameOfTable> and am having difficultly doing so. I can get the form that I am looking for with the Columns because it is an ArrayList. The NameOfTable is not. It is just a single Element. Here is the code that produced the results above. I am attempting to add in the TableName class to solve this problem but am not having any luck in getting it to print out. It never hits the getter. Any help is appreciated. Dave [XmlInclude(typeof(TableName))] public class DatabaseTable { private TableName tableName; private string name; private string className; private ArrayList columns = new ArrayList(); [XmlElement] public string NameOfTable { get { return (name); } set { name = value.Trim(); } } [XmlArray(ElementName = "Columns")] [XmlArrayItem(ElementName = "Column", Type = typeof(DatabaseTableColumn))] public ArrayList Columns { get {return (columns); } } [XmlElement(Type = typeof(TableName))] public TableName MyTableName { get {return (tableName); } } } public class TableName { private string dbName; private string newName; public TableName() { } [XmlAttribute] public string Name { get { return (newName); } set { newName = value.Trim(); } } [XmlText(Type=typeof(string))] public string NameOfDbColumn { get { return (dbName); } set { dbName = value.Trim(); } } } Tag: MessageQueue Tag: 76683
  - 15
    - Remote Counter Monitoring using Perfmon I don't know whether this is the right list....but we have configed our application to run on rpoduction environment and accoridng to KB Article ID 158438 - Enabling Non-Admin Users to remotely monitor with perfmon.. we have executed the required steps on production box... Teh problem is we can access all system counters from remote machien but when we go thru .NET Counters or any custom counters those values don't get displayed. on remote machine... Any special permission required for custom counters Regards Yogesh S Tag: MessageQueue Tag: 76682
  - 16
    - ANN: Reminder: Compact Framework chat today Just a note that we'll be hosting an online chat this morning concerning Smart Device Programming with Visual Studio .NET 2003. We will be on hand ready to answer your questions, so bring 'em on! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Title: Smart Device Programming with Visual Studio .NET 2003 Chat Date: June 10th 10:00am - 11:00am Pacific Time 1:00pm - 2:00pm P.M. Eastern time 17:00 - 18:00 GMT/BST Description: You know them from the newsgroups! You love them for their immense knowledge! Please join these amazing Microsoft MVPs in this live chat regarding the .NET Compact Framework and the Smart Device Programming features of VS.NET. The .NET Compact Framework is a subset of the .NET Framework designed to allow .NET developer to target smart devices. The Smart Device Programming features of VS.NET allow embedded developers to target devices running the Compact Framework. 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: MessageQueue Tag: 76681
  - 17
    - calling a class defined in an ASP.NET project from windows application Hi, I'm working on a web project and i create classes to do business logic and connect to DB. i also need a windows application to do the same functionality as defined in classes inside the ASP.NET project. when i reference the web project DLL (inside the BIN directory) I successfully make a call to a function and get return value. but this is just a test and when trying to access the application configuration information (defined in web.config) i get empty string in return. is there a way to share functionality between web and windows/service projects? TIA, zigi. Tag: MessageQueue Tag: 76680
  - 18
    - Refection/Serialization Problems Hi, I'm trying to build a gerenic routine which deals with versioning problems between serailized objects. All my objects are Serialized into a SQL server DB, but I need to make changes to the object tree and also make future changes easier. I'm using custom serialization and reflection and I think I'm getting there, but I have a wierd problem. I've extracted all the properties from the object in question and passed the info to the following VB routine. It's working fine until it encounters an invalid member in the serializationinfo (which is expected - it's a newly added property in my object), but after that it never recovers - from that point on I'm getting a serializationexeption (member <name> not found) for each subsequent property even when the member definitely exists in the serializationinfo. This only happens AFTER the expected error, until then it's fine. Any clues? Thanks, Russ Private Shared Function CopyObject(ByVal Info As SerializationInfo, ByVal PI() As PropertyInfo, ByRef O As Object) Dim P As PropertyInfo For Each P In PI Try P.SetValue(O, Info.GetValue(P.Name, P.PropertyType), Nothing) Catch ex As Exception End Try Next Return O End Function Tag: MessageQueue Tag: 76673
  - 19
    - rtd hi i have an excel sheet which is being populated with real time data using DDE links. i want to access this data in my C# program. How can i create a RTD client in C#? what is the other way out in C#? i have checked KB articles, but no reference is given on RTD clients, only RTD servers are given. plz help. Tag: MessageQueue Tag: 76672
  - 20
    - real time data client in c# hi i have an excel sheet which is being populated with real time data using DDE links. i want to access this data in my C# program. How can i create a RTD client in C#? what is the other way out in C#? i have checked KB articles, but no reference is given on RTD clients, only RTD servers are given. plz help. Tag: MessageQueue Tag: 76671
  - 21
    - Real time data hi.. i have an excel sheet which is being filled with real time data using DDE links. i want to access this data in my c# program. how can i make an RTD client? what is the other way out in C#? Tag: MessageQueue Tag: 76670
  - 22
    - EditorAttribute and ReadOnlyAttribute Hi, When I use BOTH ReadOnlyAttribute and EditorAttribute for a property it's for some reason NOT read only as I expected. If I don't use the EditorAttribute it's read only. Someone know more about why it's not read only when EditorAttribute used? The object with the property is used in a PropertyGrid and it's when PropertyGrid is displayed the property unexpectedly is not read only. Tag: MessageQueue Tag: 76669
  - 23
    - .NET publish/subscribe support Can anyone tell me if .NET directly supports the publish/subscribe messaging paradigm. If not directly, are there add-ons available that will provide this type of functionality? Thanks in advance, Russ -------------------------------- From: Russ Goetz ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>hQf1RHAVfU2zhCQX5lyolg==</Id> Tag: MessageQueue Tag: 76668
  - 24
    - service timer event WaitHandleWaitOne Hi there all, hope someone recognises this. Problem summary: I have a problem using a timer object within my service class. Whilst the timer triggers happily with delay of 30000 ms for some hours, it eventually comes to a point where no further work is done. Background: I have a service that (when started) I wish to check for work to do every 30 seconds. Therefore I have created a service class with a timer (system.Timers.Timer) and also an object of my service worker class. In the OnStart method I create a new instance of my worker class and load it's configuration. I set the timer interval (held as part of worker's config) and set the timer delay. On each timeout of the timer the timer_elapsed method runs. This stops the timer, does the work using the worker class, starts the timer and then sleeps again. Repeat. The service always appears to be running (in service manager shows as Started) and in task manager the exe process itself is running, but no CPU. If I connect via Visual Studio to the process I cannot get it to hit a breakpoint anywhere. But if I "cheat" and connect to a second service (i.e. another custom process and stop the code in breakpoint relating to that service) then I can see that Visual Studio debugger believes that four threads are running that relate to my app: 1) At the final } statement of my service class.Main method and 2) In System.Threading.WaitHandle.WaitOne 3) & 4) have "no code associated" This second thread leads me 'only' to some disassembly. But no further. Deadlock? As hinted at above: 3 further services run on the same machine and these share a similar format (triggered at time interval) and some code libraries between them. Could anyone point me towards a possible solution or, perhaps more likely, a way to identify further actions towards a solution. Many thanks Matt serviceworker = new CServiceWorker(intLogLevel); System.Timers.Timer sleepTimer = new static void Main() { System.ServiceProcess.ServiceBase[] ServicesToRun; ServicesToRun = new System.ServiceProcess.ServiceBase[] { new ServiceClassName() }; System.ServiceProcess.ServiceBase.Run(ServicesToRun); } private void InitializeComponent() { this.sleepTimer = new System.Timers.Timer(); ((System.ComponentModel.ISupportInitialize)(this.sleepTimer)).BeginInit(); this.sleepTimer.Elapsed +=new System.Timers.ElapsedEventHandler(sleepTimer_Elapsed); this.ServiceName = "ServiceClassName"; ((System.ComponentModel.ISupportInitialize)(this.sleepTimer)).EndInit(); } protected override void OnStart(string[] args) { // do some reading of args and load configuration // create new instance of worker class serviceworker = new CServiceWorker(intLogLevel); long lngTimerIntervalSecs = serviceworker.getTimerIntervalSecs(); setTimerInterval(lngTimerIntervalSecs); } private void setTimerInterval(long lngTimerIntervalSecs) { long lngTimerSleepPeriodMilliSecs = 1000 * lngTimerIntervalSecs; this.sleepTimer.Interval = lngTimerSleepPeriodMilliSecs; // trigger first instance of timer this.sleepTimer.Enabled = true; sleepTimer.Start(); } private void sleepTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { sleepTimer.Stop(); sleepTimer.Enabled = false; // do all the stuff each time timer trigger if(serviceworker.executeMainActivity()) { // execute ok - try again in 30 seconds sleepTimer.Start(); sleepTimer.Enabled = true; } else { // handling removed, but ... // doesn't matter if execute failed - try again in 30 seconds sleepTimer.Start(); sleepTimer.Enabled = true; } } --- Posted using Wimdows.net NntpNews Component - Post Made from http://www.DotNetJunkies.com/newsgroups Our newsgroup engine supports Post Alerts, Ratings, and Searching. Tag: MessageQueue Tag: 76667
  - 25
    - service timer event WaitHandleWaitOne Hi there all, hope someone recognises this. Problem summary: I have a problem using a timer object within my service class. Whilst the timer triggers happily with delay of 30000 ms for some hours, it eventually comes to a point where no further work is done. Background: I have a service that (when started) I wish to check for work to do every 30 seconds. Therefore I have created a service class with a timer (system.Timers.Timer) and also an object of my service worker class. In the OnStart method I create a new instance of my worker class and load it's configuration. I set the timer interval (held as part of worker's config) and set the timer delay. On each timeout of the timer the timer_elapsed method runs. This stops the timer, does the work using the worker class, starts the timer and then sleeps again. Repeat. The service always appears to be running (in service manager shows as Started) and in task manager the exe process itself is running, but no CPU. If I connect via Visual Studio to the process I cannot get it to hit a breakpoint anywhere. But if I "cheat" and connect to a second service (i.e. another custom process and stop the code in breakpoint relating to that service) then I can see that Visual Studio debugger believes that four threads are running that relate to my app: 1) At the final } statement of my service class.Main method and 2) In System.Threading.WaitHandle.WaitOne 3) & 4) have "no code associated" This second thread leads me 'only' to some disassembly. But no further. Deadlock? As hinted at above: 3 further services run on the same machine and these share a similar format (triggered at time interval) and some code libraries between them. Could anyone point me towards a possible solution or, perhaps more likely, a way to identify further actions towards a solution. Many thanks Matt serviceworker = new CServiceWorker(intLogLevel); System.Timers.Timer sleepTimer = new static void Main() { System.ServiceProcess.ServiceBase[] ServicesToRun; ServicesToRun = new System.ServiceProcess.ServiceBase[] { new ServiceClassName() }; System.ServiceProcess.ServiceBase.Run(ServicesToRun); } private void InitializeComponent() { this.sleepTimer = new System.Timers.Timer(); ((System.ComponentModel.ISupportInitialize)(this.sleepTimer)).BeginInit(); this.sleepTimer.Elapsed +=new System.Timers.ElapsedEventHandler(sleepTimer_Elapsed); this.ServiceName = "ServiceClassName"; ((System.ComponentModel.ISupportInitialize)(this.sleepTimer)).EndInit(); } protected override void OnStart(string[] args) { // do some reading of args and load configuration // create new instance of worker class serviceworker = new CServiceWorker(intLogLevel); long lngTimerIntervalSecs = serviceworker.getTimerIntervalSecs(); setTimerInterval(lngTimerIntervalSecs); } private void setTimerInterval(long lngTimerIntervalSecs) { long lngTimerSleepPeriodMilliSecs = 1000 * lngTimerIntervalSecs; this.sleepTimer.Interval = lngTimerSleepPeriodMilliSecs; // trigger first instance of timer this.sleepTimer.Enabled = true; sleepTimer.Start(); } private void sleepTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { sleepTimer.Stop(); sleepTimer.Enabled = false; // do all the stuff each time timer trigger if(serviceworker.executeMainActivity()) { // execute ok - try again in 30 seconds sleepTimer.Start(); sleepTimer.Enabled = true; } else { // handling removed, but ... // doesn't matter if execute failed - try again in 30 seconds sleepTimer.Start(); sleepTimer.Enabled = true; } } --- Posted using Wimdows.net NntpNews Component - Post Made from http://www.DotNetJunkies.com/newsgroups Our newsgroup engine supports Post Alerts, Ratings, and Searching. Tag: MessageQueue Tag: 76666

How much efficient is the Windows Message Queue for high speed and high data
traffic comunication between process?

Which is the recommend limit of send message per second?

What happen if I send a message to the queue and the reader process is down?
the message will wait to be read.... for ever? for a period of time?

Thanks a lot guys

AA

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Re: MessageQueue by Alvin

Alvin
Fri Jun 11 20:10:09 CDT 2004

Remoting is as fast as you can get. I believe it is an even spread between
webservices and msnq. That's debatable though. Message queue brings other
options to the table like delivery guarantees, redundancy and managability.

> Which is the recommend limit of send message per second?
there's *no recommended limit. However, a stream of large messages in a
short space of time would likely choke the network.

> What happen if I send a message to the queue and the reader process is
> down?
> the message will wait to be read.... for ever? for a period of time?
Message redundancy is built in and configurable.

--
Regards,
Alvin Bruney
[ASP.NET MVP http://mvp.support.microsoft.com/default.aspx]
Got tidbits? Get it here... http://tinyurl.com/27cok
"AA" <aa@personal.net.py> wrote in message
news:eKKzno$TEHA.556@tk2msftngp13.phx.gbl...
> How much efficient is the Windows Message Queue for high speed and high
> data
> traffic comunication between process?
>
> Which is the recommend limit of send message per second?
>
> What happen if I send a message to the queue and the reader process is
> down?
> the message will wait to be read.... for ever? for a period of time?
>
> Thanks a lot guys
>
> AA
>
>

Top