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- Previous
  - 1
    - Problems with public key decryption with RSA I have created an encryption class whose main encryption method encrypts small amounts of bytes (in this case the Key & IV for Rijndael encryption of main data) using .NET's RSA methods. This had all been working fine until I tried using the class within a "Windows Service" application. The application fails on a Decrypt with a "bad key" error in the "Windows Service" but runs fine (with same key & encrypted data) in a normal windows application. The main sections of code from within my class are the following:- I generate my Public / Private keys in a function like this:- // Create RSA Crypto object RSACryptoServiceProvider rsaCSP = new RSACryptoServiceProvider(); // get public & private key xml sPublicKeyXml = rsaCSP.ToXmlString(false); sPrivateKeyXml = rsaCSP.ToXmlString(true); I encrypt like this:- // encrypt symmetric key // Create CSPParameters required object CspParameters cspParam = new CspParameters(); cspParam.Flags = CspProviderFlags.UseDefaultKeyContainer; // encrypt byte[] using asymmetric method RSA RSACryptoServiceProvider rsaCSP = new RSACryptoServiceProvider(cspParam); // load the private key rsaCSP.FromXmlString(sPrivateKeyXml); // encrypt using private key byte[] byteEncrypted = rsaCSP.Encrypt(byteToEncrypt, false); And I decrypt later like this:- // Create CSPParameters required object CspParameters cspParam = new CspParameters(); cspParam.Flags = CspProviderFlags.UseDefaultKeyContainer; // decrypt byte[] using method RSA RSACryptoServiceProvider rsaCSP = new RSACryptoServiceProvider(cspParam); // load the public key rsaCSP.FromXmlString(sPublicKeyXml); // decrypt using public key byte[] byteDecrypt = rsaCSP.Decrypt(byteEncrypted, false); I have tried running the Windows Service as Administrator but got the same "bad key" error. The stack trace here is "System.Security.Cryptography.RSACryptoServiceProvider._DecryptPKWin2KEnh(IntPtr hPubKey, Byte[] rgbKey, Boolean fOAEP)" I also tried :- * changing the CspProviderFlags property to to "UseMachineKeyStore" and the code doesn't work at all, even in the normal windows application running as my user. * Importing key using RSAParameters object - will not work encrypting with private key / decrypting with public key - works other way round. * Various combinations of setting up CspParameters - with KeyContainerName set, Flags = UseMachineKeyStore, to no avail My suspicion is that Key stores are somehow involved but with a deadline looming I now require someone with more knowledge on the subject to help me! Also, can you encrypt using the private key and decrypt using the public key? The above code works like this, but the UseMachineStore solution would only work encrypting with Public Key & decrypting with the Private Key. Really, I need to be able to Encrypt with the Private Key. The customer requirement is to be able to receive encrypted (& signed) data packages where I can also verify they have come from a specific sender. My solution is to encrypt the data with Rijndael encryption, encrypt the Rijndael Key & IV with the RSA Private Key & package that up in one file. To decrypt this use the public key to obtain the Rijndael Key & IV (and know who that this can only have come from someone with the private key) & then finally retrieve the data. Sorry for such a long posting, and there are probably multiple issues here but any help would be hugely appreciated! -- Best Regards, Pike :-) Tag: MSINET.OCX Tag: 90708
  - 2
    - Assembly.LoadFrom error? Hello I'm Developing for PDA and using Assembly.LoadFrom("") static method, but I obtain a strange behavoiur. If i use an old DLL I compiled long time ago, the method correctly loads the assembly dinamically, but If i use now compiled DLL, instead of return the DLLs assembly it returns my EXE assembly, without giving any error. The Path and DLL localization are correct. Anybody can help me? thanks Juan Tag: MSINET.OCX Tag: 90705
  - 3
    - BUG?! Visual Studio .NET 2003: Why is a Modal Dialog destroyed? I have problem, which is to minimize a WinForm Application with an Open Modal Dialog. When the WinForm Application is minimized, then the Modal Dialog is destroyed. Why?! Bug ?! Sample: using System; using System.Windows.Forms; class MainForm: Form { Timer timer = new Timer(); Form modalForm = new Form(); public MainForm() { Button btShowModal = new Button(); btShowModal.Click += new EventHandler(btShowModal_Click); btShowModal.Parent = this; timer.Interval = 5000; timer.Tick += new EventHandler(timer_Tick); timer.Start(); } static void Main() { Application.Run(new MainForm()); } private void btShowModal_Click(object sender, EventArgs e) { modalForm.ShowDialog(this); ...when MainForm is minimized, then modalForm is destroyed... ?! BUG ?!; } private void timer_Tick(object sender, EventArgs e) { if (WindowState == FormWindowState.Normal) WindowState = FormWindowState.Minimized; else WindowState = FormWindowState.Normal; } } I have Visual Studio .NET 2003 and Framework v1.1 SP1. Kindly solve my problem. Tag: MSINET.OCX Tag: 90698
  - 4
    - Security problems Hello: I have several question about the security system in dotnet framework. 1: How is the evidence of assembly decided by common runtime system? 2: If a assembly is deployed to producton enviroement,is there anything changed in evidence? 3:How does security policy have effect on the execution of assembly? Thanks in advance!! Tag: MSINET.OCX Tag: 90692
  - 5
    - Tell if an object will be local or remote A question. Before I instantiate a type I need to know whether it will be local or remote. Obviously I know the type by a namespace.type string, as I don't have an instance. Now, I can tell a WebService proxy by using reflection to see if it's derived from System.Web.Services.Protocols.SoapHttpClientProtocol, so that's fine. The hard bit comes with MarshalByRef types. I need to distinguish between a MarshalByRef type which is configured for Remoting (eg set up as a well known type) and one which is not. Any ideas? Thanks in advance. Tim Tag: MSINET.OCX Tag: 90687
  - 6
    - RichTextBox Question I am using Framework v1.0 (C#). My question about richtextboxes is: I have been choosing a location in the text box string doing the following: ... textbox.SelectionLength = 0; textbox.SelectionStart = myPos; ... After setting the position I have been inserting text by calling: ... textbox.SelectedText = "Testing"; ... I discovered that the new SelectionStart after using SelectedText is: myPos + 7. 7 being the length of the selected text inserted. This has worked well for me but it has been brought to my attention that this might be a bug in the RichTextBox and I shouldn't rely on this and SelectionStart should really be myPos after using SelectedText. Is this true? I find this to be very useful because if I use SelectedText again say: ... textbox.SelectedText = "NewString"; ... The result would be: "TestingNewString " and not "NewStringTesting" It seems very natural to move the SelectionStart after using SelectedText, am I wrong? Thanks in advance, Eric Tag: MSINET.OCX Tag: 90685
  - 7
    - Files to clipboard Someone knows how to copy Files into the clipboard using C#? I've tried filling a DataFormat with FileDrop and I passed a string with the filename to setData() but no luck. I've also tried with a FileInfo object but It does not work. Is it possible? Please help!!! Tag: MSINET.OCX Tag: 90684
  - 8
    - Problem with System.Process and quotes/spaces in arguments I wrote a console application that basically consumes arguments and starts other command line apps via System.Process. Let's call it XCompile for now. I wrote a Visual basic add-in that does pretty much the same thing to XCompile. Let's call it MyAddin. XCompile collects information to send to vbc.exe. When it comes across any arguments that are file paths, it wraps them in quotes. For example: [VB.Net psuedocode (from XCompile)] Dim prms As String Dim fil As String Dim files() As String = New String() {"c:\Documents and Settings\...\file with spaces.vb", "temp\NoSpaces.vb"} For Each fil In files prms &= " " prms &= """"c prms &= fil prms &= """"c Next Console.WriteLine("vbc.exe " & Trim(prms)) Dim si As New ProcessStartInfo("vbc.exe", Trim(prms)) si.UseShellExecute = False si.CreateNoWindow = True si.RedirectStandardOutput = True si.RedirectStandardErr = True Dim prc As Process = Process.Start(si) ... This works well. The problem I come across is when I try to use a Process against XCompile in the same fashion. vbvc pretends that all the quotes have disappeared and treats everything with a space in it as a separate argument. [VB.Net psuedocode (from MyAddin)] Dim si As New ProcessStartInfo("XCompile.exe", Trim(prms)) si.UseShellExecute = False si.CreateNoWindow = True si.RedirectStandardOutput = True si.RedirectStandardErr = True Dim prc As Process = Process.Start(si) ... [Output from XCompile] vbc.exe "c:\Documents and Settings\...\file with spaces.vb" "temp\NoSpaces.vb" vbc : Command line error BC2001 : file 'and' could not be found vbc : Command line error BC2001 : file 'Settings\waldo\My' could not be found ... vbc : Command line error BC2008 : no input sources specified So in summary, XCompile works, shelling to vbc by itself, but doesn't work when MyAddin shells to XCompile. Any Ideas why this happens/how to fix it? Thanks in advance. WALDO Tag: MSINET.OCX Tag: 90683
  - 9
    - motivation behind delegates I'm sorry for the newbie question, but I'm a bit confused. I'm reading about Delegats in Jesse Liberty's C# Programming book and, well, I'm confused as to the motivation behind delegates. On the surface, they look exactly like using interfaces in java, so why have another construct to confuse things? I know they work "like function pointers" but the whole reason I went to java was to avoid pointers! And before java, I used VB, so pointers are not something advantageous to me. And I understand delegates are how .net does event driven coding, but why can't interfaces be used to accomplish the samething? Thanks for any advice. Tag: MSINET.OCX Tag: 90681
  - 10
    - Session String value confuses Response.Redirect Overview: I redirect a user to a page to register, then redirect back to orginating page. The registration page is a two part form. On the second post I send the user back to the page they came from. On Page Load I assign a Form value called ReturnURL to a Session value called the same thing. A sample value of ReturnURL would be: ("/whitePapers/paper.aspx?PID=5655") The code is: Session("ReturnURL") = Request("ReturnURL") The user fills in data and submits the form. If the user passes validation they fill out another form. If the user passes validation they are redirected back to the orginal page. Here is the code: Dim sessionReturnURL As String = CType(Session("ReturnURL"), String) Response.Redirect(sessionReturnURL, True) But instead redirecting back to the correct page, the Redirect command appends the sessionReturnURL value under the current directory: http://www.testdomain.com/userReg//whitePapers/paper.aspx?PID=5655 Instead it should be: http://www.testdomain.com/whitePapers/paper.aspx?PID=5655 If I hardcode the value, such as: Response.Redirect("/whitePapers/paper.aspx?PID=5655", True) It works fine, it redirects the user to: http://www.testdomain.com/whitePapers/paper.aspx?PID=5655 Any thoughts? Tag: MSINET.OCX Tag: 90676
  - 11
    - HttpWebRequest.GetResponse() Hi, how does GetResponse() act (request-method is GET!), when the Content-Length of the HTTP-Response is -1, i.e. unlimited? Using a Packet-Sniffer i found out, that it returns after having received the HTTP-header and a few packets from the data-stream. However, i'd like to know the method's "documented" behaviour which i could not find on its documentation page. Thanks in advance! Tag: MSINET.OCX Tag: 90672
  - 12
    - Windows Service gives Access Denied error Hi. Iâ??m writing a Windows service in C# that needs to run in the NetworkService account, but when I create an Installer and set ServiceProcessInstaller.Account to NetworkService on an otherwise unaltered new project, I get an â??Error 5: Access Deniedâ?? message when I try to start the service, even when logged in as Administrator. Does anybody know why this is happening or how I can get around it? Thanks in advance Tag: MSINET.OCX Tag: 90669
  - 13
    - Compiling C++ class project to a dll I've been given a C++ class library project which I need to use from my asp.net vb.net project. I have tried building the C++ class library it but it only creates a series of .obj files which I can't reference from the asp.net project. How do I get the C++ class library to compile to a dll (I've played around with the properties of the project but it still doesn't seem to produce a dll), is there any other way to include it in my asp.net project?? Tag: MSINET.OCX Tag: 90668
  - 14
    - ActiveX, plug-in...whatever The other day I posted a question about using ActiveX in my project..... obviously, that's not the best solution. But I found this great article on what the author calls rich-client which does EXACTLY what I'm looking for. Being able to show a windows form in an IE window! http://msdn.microsoft.com/msdnmag/issues/02/06/rich/default.aspx Unfortunately, some of the terminology is over my head and it's in C#...I'm a VB person. Could anyone explain how this is done or point me somewhere that does this? I will admit, I can be quite dumb some days and learn best by a nice step-by-step example. Thanks for your help. -Rob T. Tag: MSINET.OCX Tag: 90664
  - 15
    - Sharing data between applications Hi Using the System.Web.Caching.Cache object, I'm able to share data between two (or more) different web clients (http-sessions). But what if some of my Clients are Windows/Comsole/... applications ??...can I somehow access the same cache or am I bound to access my data using http?? Tia Søren Tag: MSINET.OCX Tag: 90661
  - 16
    - Persistance medium problem. I save and get the ViewState from persistance medium in my application instead of saving it in the hidden field and my program works without problems except in my login screen. In my login screen I have two dropdownlists. The first contains the name "Administrator" and any branch names that the administrator had previously created. The second dropdownlist contains a list of employees that changes whenever the first list is changed. The second dropdown list is not created if the first list has selected Administrator since the Branch is Administrator and the User is Administrator and it would look funny to display a useless dropdownlist. My problem occurs when the Internet is very slow and someone switched from a non administrator to administrator in the first dropdownlist and then clicks the submit button. Since the first submit has processed the change over to eliminate the second dropdownlist, the second submit enters application and when the ViewState is got it does not contain the second list and .Net puts out a message squaking about the missing list. I wouldn't mind if .Net just threw away the second submit. I put javascript code in the form on submit to disable the submit key, but the dropdownlist submit doesn't call the function. I then put javascript in trap the onclick of the dropdown list to disable the submit button but the on click occurs as soon as you click on the dropdown list long before the real submit was issued to my application. I then tried to create the object but make it invisible but that didn't help either. Does anyone know of anyway to solve the problem short of creating the object and disabling it? Tag: MSINET.OCX Tag: 90646
  - 17
    - BinaryFormatter.Deserialize after signing of assembly fails Hello, I have a class which is beeing serialized/deserialized using the BinaryFormatter class. That has been working with no problems until I signed all my assemblies. Now I get a SerializationException when I try to Deserialize the class which has been serialized before the signing. So what is best practice in my situation? Do I have to convert all my saved classes or do I write a SerializationBinder to handle it runtime? If I delete all my data and run fra scratch it works fine until I compile my assembly. Then the assembly gets a new versioand it fails on the version. Why do I get this error now, i did'nt get it before I signed the assembly? Best regards Henrik Skak Pedersen Tag: MSINET.OCX Tag: 90645
  - 18
    - (Color myColor = Color.LightBlue) returns value RGB{0x0}??? Hello, I just started out with Windows.Forms and was going through the MS tutorials. In the tutorial where you can create a non-rectangular shaped window by using your own window painted with some paint utility, I am having some problems with trying to compare the color of the pixel that I retrieve using Bitmap.GetPixel(...) method. My pseudo-code looks like this: **************************************************************************** ****** OnMouse_Click(...) { Color myColor = Bitmap.GetPixel(e.X, e.Y); Color colorToCompare = Color.LightBlue; // At this point I notice that the colorToCompare variable has a value of RGB{0x0}???!!! why? if (myColor == colorToCompare) // then execute logic which never does. } **************************************************************************** ******* I have another question. The reason I am trying to get the color of the pixel is because I want to allow a mousemove event only when the user clicks the mouse on the visible region of my form and not on its transparent background. But I still have the problem that when a user clicks on the transparent background of my window the icons (e.g.) that I see on that position are not chosen? How can I choose the background items on a desktop or if there is another application on the background when a user clicks on the transparent background of my form? -- Regards, Sami [Remove Numbers from e-mail address to use it] Tag: MSINET.OCX Tag: 90644
  - 19
    - Plugin Architecture Problem Hi, [ BTW I'm using C# ] I'm trying to implement a Plugin architecture where I have a single UI framework, and then load dll components into that framework. At the moment I'm constructing the Plugin loading mechanism, I've created a plugin interface ( that the plugin clients must implement ) and a pluginhost interface ( thart the ui framework plugin manager must imlpement ). When the UI framework loads the plugin assembly it checks the types in the assembly to ensure it supports the plugin interface, if it does then it constructs an instance of this type and casts it to the plugin interface type. If I create a source file with these interfaces in and link this file ( i.e. share the file )into each project then I get a CastException - in CreatePluginInstance - when I cast to the plugin interface type. If I implement this interface in a separate dll and then reference this in the framework and the pluginclient, then the cast succeeds. I suppose this works, but I would rather keep the number of dlls to a minimum, and hoped to be able to get away with just sharing the interface source file. Is this possible ??, or do I need to implement it this way ?? regards Rich. CODE: Interface..... namespace PluginInterface { public interface IPlugin { IPluginHost Host{ get;set; } } public interface IPluginHost { bool Register(IPlugin ipi); } } PluginCreation and Cast... Assembly objAssembly = Assembly.LoadFrom(_strPath); foreach (Type iterTypes in objAssembly.GetTypes()) { foreach (Type iterInterfaces in objIterGetAssemblyTypes.GetInterfaces()) { if (iterInterfaces.Equals(typeof(PluginInterface.IPlugin))) { CreatePluginInstance(iterInterfaces); } } } } public void CreatePluginInstance( Type _assemblyType ) { PluginInterface.IPlugin sui_Plugin = (PluginInterface.IPlugin)Activator.CreateInstance(_assemblyType); } Tag: MSINET.OCX Tag: 90643
  - 20
    - what is the difference hello who can tell me the relation and difference between the following concept: 1 no-touch deployment 2 clickonce 3 smart client Tag: MSINET.OCX Tag: 90640
  - 21
    - Steps to consider when upgrading Win app from .Net 1.0 to 1.1 Hi, We have Win app that runs on .Net Framework 1.0. We want to port the app to run on 1.1. What are the steps that I need to perform the upgrade and also what are the issues that I should consider prior to that conversion? Application components: Win App, COM+, SQL Server 2000, Biztalk Server 2002(conversion to Biztalk 2004 is not currently an option) , MSMQ, MSMQ Connectors, Workflows(Biztalk orchstrations Xlangs), Windows Services, Infagistics controls, User & custom controls, so on. Pretty complicated. Any thoughts on this? Thanks in advance, --Alex Tag: MSINET.OCX Tag: 90638
  - 22
    - Read\Write to Network Share using a Console App Hello, How can I read, write and delete to a network share using a console application? I keep getting a security exception. I have read about FileIOPermission but I don't understand how to use it with DirectoryInfo and FileInfo classes. The permissions on the share are set to All users, Full Control. Example code would be great! Thanks ! Tag: MSINET.OCX Tag: 90637
  - 23
    - SDE Anyone know where I can get the SDE file for Visual Studio.NET 2002? I can't seem to find it anywhere and I want to try developing for a PocketPC. Thanks DS Tag: MSINET.OCX Tag: 90630
  - 24
    - Open File Dialogbox Hello, I am running VS 2002 and need a FolderBrowserDialog . I could create one using a DirListBox and a DriveListBox but it does not allow browsing to a network. Is there a way to display the network using a DirListBox and a DriveListbox? Is there a way to use the VS 2003 FolderBrowserDialog in a VS 2002 Application? Any Suggestions will be greatly appreciated. Thanks, Chuck Tag: MSINET.OCX Tag: 90625
  - 25
    - Sorted array component Does .net have a sorted collection component similar to the C++ std::set ? I am not interested in a dictionary object, just a sorted collection where I can pass in a delegate to do the sort. I am also not interested in calling ArrayList's Sort() as I want the collection to automatically maintain its sort order when objects are inserted into it. I looked in the System.Collections and System.Collections.Specialized but did not find a sorted collection class which was not also a dictionary. Tag: MSINET.OCX Tag: 90621
- Next
  - 1
    - Windows Remoting Service Periodically Crashes. I am developing a three tiered Windows Service application using remoting. The Server portion of the program runs on a Windows Server 2k3 machine and intermittently crashes. The event log contains the following error message corresponding with each crash: #################################################### The description for Event ID ( 0 ) in Source ( .NET Runtime ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: .NET Runtime version 1.1.4322.2032- rwcarewarebusinesstier.exe - Common Language Runtime Debugging Services: Application has generated an exception that could not be handled. Process id=0xac4 (2756), Thread id=0x718 (1816). Click OK to terminate the application. ##################################################### Any known issues that could cause this? It seemed to run without incident on a machine with Windows 2000 server although the application has changed since then. Tag: MSINET.OCX Tag: 90620
  - 2
    - Get Executable name from Window Handle I need to get the executable name for window under the cursor. I feel like my code is pretty close but the i never find a process.Handle that matches the handle under my mouse. here is my code: public object ParentExecutable(IntPtr hWndUnderMouse) { object p = null; System.Diagnostics.Process[] allProcesses = System.Diagnostics.Process.GetProcesses(); for(int iii = 0; iii < allProcesses.Length; iii++) { try { if(((System.Diagnostics.Process)allProcesses[iii]).Handle == hWndUnderMouse) { p = ((System.Diagnostics.Process)allProcesses[iii]); iii = allProcesses.Length; } } catch{} } return p; } Thanks in advance for any help, ~Logan Tag: MSINET.OCX Tag: 90615
  - 3
    - .Net 1.1 sp1 troubles I have heard so many issues with failed sp1 installations and problems with applications after installing the service pack that it makes me nervous. We are moving our development to .Net and yet have been unable to install this service pack on 3 of our machines. While I am sure, if I dig deep enough, I will find the solution to fixing (Yes, I have even uninstalled 1.1 and reinstalled it) but I shudder to think what will happen when my end-users need to update their .Net installations. -- David Farrell-Garcia Whidbey Island Software LLC Posted with XanaNews 1.17.1.2 Tag: MSINET.OCX Tag: 90611
  - 4
    - Timing Hi everyone, I'm neck deep in ASP.NET and sinking fast ;) Any help much appreciated. I have two user controls on a page that I want to communicate with each other. One control is called RoleList and allows the user to select the type of view they wish to see on the page. The other control(s) - sometimes there may be several - then change the stored proc, query etc they use to extract info from sql. Therefore, I have set up the RoleList to generate an event and coded the other control(s) to listen and recieve it. The problem is timing. I've done some tracing to see what happens and when: 1 aspx.page Begin Init 2 aspx.page End Init 3 aspx.page Begin LoadViewState 4 aspx.page End LoadViewState 5 aspx.page Begin ProcessPostData 6 aspx.page End ProcessPostData 7 Control ID: RoleList - role was previously set in the viewstate: tutor 8 Control ID: StudentList - role was previously set in the viewstate: tutor 9 aspx.page Begin ProcessPostData Second Try 10 aspx.page End ProcessPostData Second Try 11 aspx.page Begin Raise ChangedEvents 12 aspx.page End Raise ChangedEvents 13 aspx.page Begin Raise PostBackEvent 14 Changing role to: Secretary 15 Control ID: RoleList - changed role to: Secretary 16 Control ID: StudentList - changed role to: Secretary 17 aspx.page End Raise PostBackEvent 18 aspx.page Begin PreRender 19 aspx.page End PreRender 20 aspx.page Begin SaveViewState 21 aspx.page End SaveViewState 22 aspx.page Begin Render 23 aspx.page End Render Line 7 and 8 came from the page_load event in each control. Line 14 came from the event being fired and the next two is where the event is caught. But the Load event (which contains the data binding for the list / grids etc) for the response has already happened! Therefore the user must click the role they want to see TWICE!!! I could probably make some public properties in the base page and read/write info from them to get around this. But this will mess up my otherwise quite low coupling and I don't want to. Thanks in adv. Mark. Tag: MSINET.OCX Tag: 90609
  - 5
    - XML schema for a CodeDom Graph Is somebody know an XML Schema to represent a .NET Source Code as an XML file ? More precisely, in CodeDom you can write a source code like this: cns = new CodeNameSpace(...); cns.Imports.Add( new CodeImport(...) ); cns.Imports.Add( new CodeImport(...) ); ctd = new CodeTypeDeclaration(...); ctd.IsClass = true; ctd.Name = "MyClass"; ctd.Members.Add(...); ctd.Statements.Add(...); My wish is to have an XML file like this: <Namespace name="..."> <Imports> <NamespaceImport nameSpace="..."/> <NamespaceImport nameSpace="..."/> </Imports> <Types> <TypeDeclaration name="..." isClass="true"> <Members> ... </Members> <Statements> ... </Statements> </TypeDeclaration> ... </Types> <Namespace> Ultimatly, of course, I would translate my XML to CodeDom and generate my code. I've tried to serialize the CodeDom graph but it's really too verbous. Lionel. Tag: MSINET.OCX Tag: 90608
  - 6
    - Save file to network share not part of a domain I need to save files to a network share that is not part of a domain. I have set up a user on the remote machine that has permissions to write to the share. How do i supply the credentials through my application that will allow it to write files into the share on the remote machine. -- shaheed Tag: MSINET.OCX Tag: 90602
  - 7
    - MSDN subscriber I was informed that If I am a MSDN subscriber, if I post question here and no one answer, it will fire an Internet question at Microsoft I think when I bought VS.NET Enterprise version, I got a one year MSDN subscription, is this right? How can I get a MSDN subscription and make sure that microsoft look at my question if no one answer it? Tag: MSINET.OCX Tag: 90600
  - 8
    - Error upon sending request to a web service on Windows 2003 I am facing the following problem I have a windows serivce client sending records frequently to a web service installed on a Windows 2000 Server machine. The connection line between the two machines is 512kbps however only quarter of it is used for these transactions and the average of the records sent is 400K. Recently the machine was upgraded to Windows 2003 Server and i started receiving the following errors: 1. Server was unable to read request. --> There is an error in XML document (1, 1665). --> An unexpected end of file parsing TAG has occurred. Line 609, position 57. 2. The underlying connection was closed: An unexpected error occurred on a receive. 3. The operation has timed-out. Please keep in mind the following: - This error never appeared on the previous 2000 server. - This error doesnt always occur (not for all records), when it does and the client tries to resend the failed records they are sent successfully - I tried to increase the connection timeout value for the web sites enter in IIS and the responseDeadLockInterval in the machine.config file and the masRequestLength in the web.config file however it didnt help - This error also appears when the newly upgraded machine tries to send to other sites Any Solutions? Tag: MSINET.OCX Tag: 90597
  - 9
    - Mobile verses normal aspx? I put a small amount of code to support limited capabilities in my application to support mobile devices. I've used normal aspx (not mobile) and it appears to work very well. I checked it out with the OpenWare 7, Microsoft Mobile Explorer 3.0, and Pocket PC 2002 emulators and everything works very well. I save and get the ViewState from Persistenance media and each of the two pages that I'm producing only transmits about 500 bytes of data so I think the performance is OK. Is there any reason that I should change the code to use the Mobile workspace? Tag: MSINET.OCX Tag: 90596
  - 10
    - Cannot remove assembly from cache Hi, I tried to remove assembly from Framework 1.1 Configuration, it says 'Error removing assembly' I then hit the gactil which results the following Microsoft (R) .NET Global Assembly Cache Utility. Version 1.1.4322.573 Copyright (C) Microsoft Corporation 1998-2002. All rights reserved. Assembly: foo, Version=1.0.1.1, Culture=neutral, PublicKeyToken=1234567890123456, Custom=null Assembly could not be uninstalled because it is required by Windows Installer Unable to uninstall: assembly is required by one or more applications Pending references: SCHEME: <WINDOWS_INSTALLER> ID: <MSI> DESCRIPTION : <Windows Installer> Number of items uninstalled = 0 Number of failures = 0 --------------------------------------------------------- I also looked the following registry keys, but there is no such entry. HKEY_CURRENT_USER\Software\Microsoft\Installer\Assemblies HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Assemblies Any help would be really appreciated. Thanks in advance, Fahad Tag: MSINET.OCX Tag: 90594
  - 11
    - Regular expression problems Hello al I am not sure where to post this, so I hope this is correct. We have written a Visual Studio AddIn that relies heavily on regular expressions, which are often executed thousands of times. When running, it works successfully for a while, but the Windows Page File Usage gradually increases, and eventually the application freezes. We have traced the problem to the regular expressions, but the problem does not apply equally to all expressions. For example, the expression "^([\s]*)('|REM( |\t|\v))([\s\S]*)$" does not cause any problems, whereas the expression "^((("(("")|[^"])*")|([\s\S]*?))*)(('([\s\S]*))|$)$" causes a severe memory leak. We always execute the expressions in 'interpreted' mode. Is there a problem with certain expression constructs? Thanks for any help/tips Saira Tag: MSINET.OCX Tag: 90588
  - 12
    - Crystal Report Run-Time customization I want to ask whether Crystal Report 9 (and DotNet Version of Crystal Report) supports Run-Time customization (Grouping) or not? If it does then how? Also I want to ask whether they support drill down charting or not? If it does then how? Regards, Irfan Tag: MSINET.OCX Tag: 90583
  - 13
    - Comments for dokumentation (VB.NET) Hello folks, i change from C#.net to vb.net for a project and can't found a answer to this: How to write Comments like /// <summary> /// /// </summary> using VB.NET. I just found the ' Char to write Comments. Is there any possibility to use the Tool for creating a HTML-Documentation together with VB.NET Code? Thanks in advance for any help. Niels Tag: MSINET.OCX Tag: 90581
  - 14
    - PerformanceCounter (CPU load) staggers for 20 seconds When using PerformanceCounter.NextValue to measure CPU load (percentage), it returns quickly on every call but then takes 20 seconds at the 2 minute boundary. After this it again returns quickly. Here's a sample: //********************************** using System.Diagnostics; using System.Threading; PerformanceCounter pc = new PerformanceCounter("Processor", "% Processor Time", "_Total"); pc.NextValue(); // prime (values are relative to last) DateTime now = DateTime.Now; for (int i = 0; i < 240; ++i) { // it staggers at i == 120 int start = Environment.TickCount; decimal load = decimal.Round((decimal) pc.NextValue(), 0); int end = Environment.TickCount; Console.WriteLine("Period: {0}, Load: {1}, Delta: {2}ms", DateTime.Now - now, load, end - start); Thread.Sleep(1000); } //********************************** This code displays the time it takes in milliseconds for each call to PerformanceCounter.NextValue to measure CPU load as a percentage. It typically takes 0ms for the first 119 calls. Then at 01:59 it takes 20 seconds. After that it again returns quickly. I'm seeing this on three different systems (XP Home, XP Pro, Server 2003), and using .NET 1.1 and .NET 2.0 Beta2, both debug and release builds. Has anyone else had problems with this issue? In production code I'm calling PerformanceCounter.NextValue from a separate thread, but it still seems to "freeze" ALL currently running threads of my app - nice 20 second delay :-) It only seems to happen at the 2 minute boundary, after that it doesn't (seem to) happen again. Thanks for any help. Tag: MSINET.OCX Tag: 90579
  - 15
    - how do you get current username in aspx? I have tried everything I can think of, but nothing is working for me. Just when I read an example and I'm 95% of the way done, I can't actually update the xml file. :< (http://www.devhood.com/Tutorials/tutorial_details.aspx?tutorial_id=96) Very disappointing as the reason I came to aspx was for it's supposed simplicity to JSPs. :< I hope I wasn't wrong. I've tried the following and all I get is this. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. These are the lines I've tried: testing.Text = Thread.CurrentPrincipal.ToString(); testing.Text = User.ToString(); testing.Text = System.Security.Principal.WindowsIdentity.GetCurrent().Name.ToString(); The aspx compiles so I'm assuming I have all the right imports, what could I be doing wrong? The reason why I'm on this ride is I can't actually update the XML file, if you know how I can do that it would be greatly appreciated! :> Tag: MSINET.OCX Tag: 90577
  - 16
    - How do you get username of current user? I have tried several different things in my aspx and all I get is Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Please help? So far I've tried: Tag: MSINET.OCX Tag: 90576
  - 17
    - strange memory managment Hi All, This might be something really straight fowward, but I have been debugging my application. I noticed some really unusual memory behaviour, after putting it through a profile, I narrow it down to the property AllowDrop = true. I created some sample code, which simply adds a panel to a tab control 10 times, then removes the control 10 times. If I have AllowDrop=true set the panel is never destoryed in memory. I am just interested in knowing why AllowDrop=true would stop the panel from being destroyed ? Thanks Scott ------------- Sample Code ------------- for(int i=0;i<100;i++){ for(int j=0;j<10;j++){ TabPage page = new TabPage("we"); Panel a = new Panel(); a.AllowDrop = true; page.Controls.Add(a ); this.tabControl1.TabPages.Add(page); } for(int k=0;k<10;k++){ this.tabControl1.TabPages[0].Controls.Clear(); this.tabControl1.TabPages.RemoveAt(0); } } } Tag: MSINET.OCX Tag: 90571
  - 18
    - .Net Remoting TCP or HTTP? Hi, Iâ??m new to .Net Remoting, I am wondering what should I use for my channel, TCP or HTTP. Can someone tell me why I would use one over the other? And in what cases will I use TCP over HTTP and vice versa I am using C# .net. I am behind a firewall; this app will be for a few hundred users over a WAN, internal only. Better performance is what Iâ??m looking for. What Iâ??m trying to build is a middle ware for my windows appâ??s to connect to, and the remoting server will talk to Oracle database and return the data to the client. Andâ?¦ does anyone know about http://www.genuinechannels.com/ what is this? And why would I need this? Tag: MSINET.OCX Tag: 90568
  - 19
    - ASP.NET import code I know in PHP it's possible to import another PHP file, so that you don't have to type the same code over and over again. I've been trying to find out how to do this with ASP.NET but haven't found a way. The code I have so far is: <%@ Page Language="VB" %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Data.OleDb" %> <script runat="server"> ' Insert page code here ' Sub Page_Load(sender as Object, e as EventArgs) Dim connString as String connString = "Provider=Microsoft.Jet.OLEDB.4.0;DATA SOURCE=c:\phone.mdb;" Dim objConnection as OleDbConnection objConnection = New OleDbConnection(connString) objConnection.Open() Dim strSQL as String = "SELECT * FROM staff" Dim objCommand as OleDbCommand objCommand = New OleDbCommand(strSQL, objConnection) Dim objDataReader as OleDbDataReader objDataReader = objCommand.ExecuteReader(CommandBehavior.CloseConnection) lstNames.DataSource = objDataReader lstNames.DataBind() End Sub </script> <html> <head> </head> <body> <form runat="server">  <asp:listbox id="lstNames" runat="server" DataValueField="FIRSTNAME" DataTextField="FIRSTNAME" Rows="1"></asp:listbox> </form> </body> </html> I'd like to be able to chop out the code for the database connection, so that it starts right at lstNames.DataSource How do I go about doing this? Tag: MSINET.OCX Tag: 90567
  - 20
    - ASP.NET import code I know in PHP it's possible to import another PHP file, so that you don't have to type the same code over and over again. I've been trying to find out how to do this with ASP.NET but haven't found a way. The code I have so far is: <%@ Page Language="VB" %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Data.OleDb" %> <script runat="server"> ' Insert page code here ' Sub Page_Load(sender as Object, e as EventArgs) Dim connString as String connString = "Provider=Microsoft.Jet.OLEDB.4.0;DATA SOURCE=c:\phone.mdb;" Dim objConnection as OleDbConnection objConnection = New OleDbConnection(connString) objConnection.Open() Dim strSQL as String = "SELECT * FROM staff" Dim objCommand as OleDbCommand objCommand = New OleDbCommand(strSQL, objConnection) Dim objDataReader as OleDbDataReader objDataReader = objCommand.ExecuteReader(CommandBehavior.CloseConnection) lstNames.DataSource = objDataReader lstNames.DataBind() End Sub </script> <html> <head> </head> <body> <form runat="server">  <asp:listbox id="lstNames" runat="server" DataValueField="FIRSTNAME" DataTextField="FIRSTNAME" Rows="1"></asp:listbox> </form> </body> </html> I'd like to be able to chop out the code for the database connection, so that it starts right at lstNames.DataSource How do I go about doing this? Tag: MSINET.OCX Tag: 90566
  - 21
    - .NET and C++ template I have created a C++ MFC dialog based appliction with .NET 2003. I am trying to use a functioning MFC extension dll. There is a header file for this dll that defines a template class. .NET errors when trying to compile this file. This dll and it's associated headers compile and function just fine under VC++ 6. Help is appreciated. Thanks Here is the gist of the header file in question: template<class TYPE> class AFX_EXT_CLASS CGisPtrArray : public CArray<TYPE *,TYPE *> { public: CGisPtrArray(); ~CGisPtrArray(); ... }; template<class TYPE> CGisPtrArray<TYPE>::CGisPtrArray() { } ... Here's the error from .NET: GisArray.h(22) : error C2491: 'CGisPtrArray<TYPE>::__ctor' : definition of dllimport function not allowed GisArray.h(28) : error C2491: 'CGisPtrArray<TYPE>::~CGisPtrArray' : definition of dllimport function not allowed This error is duplicated for every method of the template class. Tag: MSINET.OCX Tag: 90563
  - 22
    - Image comparison, from image capture device Hi I am trying to find some code, or reference docs, to assist in helping capture images from an image capture device (ie. webcam etc etc). I want to be able to compare successive images coming from the device, and be able to detect if the image has changed from the previous one. I have found some Java code which does something similar to what I want to do, but I am unsure which classes in the .Net framework are equivalents or of use in this. If anyone can help, it would be most appreciated. Thanks Paul Tag: MSINET.OCX Tag: 90559
  - 23
    - Problem with datetime constructor Why this? >? new DateTime(2005, 1, 1).tostring "01/01/0001 0.00.00" I think the right output is "01/01/2005 0.00.00"... I've some tests on a property set routine, as If Value > New DateTime(2025, 1, 1) Then Throw New ArgumentOutOfRangeException("registrationDateTime must be before gen 1, 2025") and I cannot make work them! thanks Tag: MSINET.OCX Tag: 90551
  - 24
    - Running a process and the environment path variable If I do System.Diagnostics.Process p = new System.Diagnostics.Process; p.StartInfo.FileName = "<an executable name>"; // ... (set other properties) p.Start(); How can I force .NET to look for the named executable in the path? It does not appear to do this by default. Tag: MSINET.OCX Tag: 90549
  - 25
    - Possible to read a AppDomain's ConfigurationSettings from another domain? Hi, I have a .Net component running under a COM+ server package. On occasion one of my aspx web applications calls it to do some work. The web app has some configuration settings stored in its Web.config file that I'd like my component to get to if possible. However, because it runs in a separate appdomain (the COM+ server package is an entirely different process) from the web page I can't get to that information-- at least, I don't know how. Would anyone know if it's possible for my component to read the config settings from another application domain? Tag: MSINET.OCX Tag: 90547

Anyone knows what would be the equivalent assembly in .NET to the Inet
control from MSINET.OCX ?

All I want to do is send HTTP requests from VB.NET with no UI

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RE: MSINET.OCX by NoSpamMgbworld

NoSpamMgbworld
Fri Jan 28 08:37:13 CST 2005

System.Net!

YOu can find a sample app here:
http://www.c-sharpcorner.com/References/ReferencesWebRequest.asp

---

Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

***************************
Think Outside the Box!
***************************

"Ofer" wrote:

> Anyone knows what would be the equivalent assembly in .NET to the Inet
> control from MSINET.OCX ?
>
> All I want to do is send HTTP requests from VB.NET with no UI

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RE: MSINET.OCX by Ofer

Ofer
Fri Jan 28 11:29:02 CST 2005

Thank you much!

(I posted twice because I had an error, sorry!)

"Cowboy (Gregory A. Beamer) - MVP" wrote:

> System.Net!
>
> YOu can find a sample app here:
> http://www.c-sharpcorner.com/References/ReferencesWebRequest.asp
>
> ---
>
> Gregory A. Beamer
> MVP; MCP: +I, SE, SD, DBA
>
> ***************************
> Think Outside the Box!
> ***************************
>
> "Ofer" wrote:
>
> > Anyone knows what would be the equivalent assembly in .NET to the Inet
> > control from MSINET.OCX ?
> >
> > All I want to do is send HTTP requests from VB.NET with no UI

Top