Can .NET & IExplorer well work together?

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Framework
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
  - 1
    - Unable to validate the file path Hello: Could somebody help please? I can't open any file in Visual Studio .NET It gives me the following mesag: unable to validate the file path c:\inetpub\wwwroot\filename doesn't match the url path http://localhost/filename Thanks Tag: Can .NET & IExplorer well work together? Tag: 56737
  - 2
    - delegates over remoting i wondered if anyone could tell me why i get a security exception when i pass a delegate to a "broadcasting" object that takes a delegate as a parameter. the "broadcasting" object takes a delegate and invokes the method in a new thread. the idea was to pass a method to another computer for it to excecute instead of me please advise Andrew Tag: Can .NET & IExplorer well work together? Tag: 56735
  - 3
    - Framework Versions 1.0 and 1.1 Hi All! I have the .Net Framework 1.1 and the Visual Studio 2003 installed in my development machine. But I need to develop an application in the framework 1.0. How can I do this? Can I install the framework 1.0 in the same machine? Do I need to install the visual studio 2002 as well? Or do I need to unistall the framework 1.1 and the Visual Studio before? Thanks Cesar Tag: Can .NET & IExplorer well work together? Tag: 56734
  - 4
    - locating netfx.msi I have tried locating this file on both the original Operating CD (Windows Pro 2000) and the upgrade CD (XP Pro) but cannot find the dotnetframework folder or dotnetfx.exe. I have also tried installing Microsoft .NET Framework 1.1 to see if that fixed my problem. Where else do I look for the file I need? Please advise, CC Tag: Can .NET & IExplorer well work together? Tag: 56733
  - 5
    - performance counter instance How do I create a new instance in a performance counter category? The PerformanceCounterCategory class only has InstanceExists but I can not find a way to create a new instance..? Tag: Can .NET & IExplorer well work together? Tag: 56731
  - 6
    - case insensitive replace all- How do you a case insensitive replace on a string in .NET?? Preferrably using the StringBuilder object. I appreciate it. Thanks. Tag: Can .NET & IExplorer well work together? Tag: 56730
  - 7
    - Preserve schema location during serialization It seems that XML Serializatoin automatically puts certain XSD attributs in the root node. How can I control the root node attributes emitted to something more custom so I can preserve my schema link? Tag: Can .NET & IExplorer well work together? Tag: 56723
  - 8
    - XML serialization applying attributes I want to apply 2 attributes to my root node when I serialize. How would I specify that in the class definition? Tag: Can .NET & IExplorer well work together? Tag: 56722
  - 9
    - XML generated from a Dataset with a DataRelation Hi, I have a dataset with two tables (Order, Item) and a relationship setup to join the tables. I have the nested property of the DataRelation class set to true. When I use the GetXML method the XML looks like this: <Orders> <Order> <OrderID>1</OrderID> <Item> <ItemID>1</ItemID> </Item> <Item> <ItemID>2</ItemID> </Item> </Order> </Orders> But the XML I want it to produce would lokk like this: <Orders> <Order> <OrderID>1</OrderID> <Items> <Item> <ItemID>1</ItemID> </Item> <Item> <ItemID>2</ItemID> </Item> </Items> </Order> </Orders> Is there way to force the Dataset to give me the XML with the <Items> and </Items> tags using the GetXML method? If not, how would I go about generating the XML the way I want it? I don't have to traverse the Dataset and generate it myself do I? Tag: Can .NET & IExplorer well work together? Tag: 56721
  - 10
    - DLL, memory leak, handles issues with TCP/IP. Hi, I have an application that uses a dll that we have written. This dll makes use of winsock2.h functions like WSAInitialise etc. all related to opening and closing tcp connections wrapped in our own dll commands. I pass the application handle to the dll.(this might be the issue i think) Problem is i am seeing a memory leak (handles go on increasing) when i run my application using functions from dll in a loop and its being caused by our implementation of tcp probably. However if i use the same low level commands which are interfaced with winsock commands i dont see the memory leak(handles dont increase) Is there something special about working dll and tcp/ip. I read somewhere that you need to create a hidden window internal to dll to post the messages. I hope someone gives me a helpful answer. I am going crazy trying to stop the increase of handles. Thanks Prady Tag: Can .NET & IExplorer well work together? Tag: 56718
  - 11
    - XML Serializer question... Hi, I have an array of structures I would like to turn into an XML string using the XML serializer. The problem I am running into is that I get an exception. Depending on what data type I set the serializer up with (my structure or ArrayList), I get either "Invalid Cast" or "...did not expect type <my structure> ..." Does anybody know how I can do this WITHOUT having to resort to using the SOAP formatter? It seems like a waste to put all of that extra stuff in my xml. Thanks, James Tag: Can .NET & IExplorer well work together? Tag: 56717
  - 12
    - err.raise inside catch? I would like to use err.raise(x) within a catch block to send an exception back to the calling function or cain of functions. Is this ok to do? I know if i dont use try catch fail in the child function that it will send an exception to the calling function but i want to have error handling in all chain functions. any MSDN documentation on this? Tag: Can .NET & IExplorer well work together? Tag: 56715
  - 13
    - Set system time Is there a .NET Framework class that can be used to set the local system time? I do not want to use the P/Invoke to call the SetSystemTime WIN32 API unless I need to. I would like to be able to do it from within the Framework. Thanks for you time, Dave Tag: Can .NET & IExplorer well work together? Tag: 56714
  - 14
    - Versioning compatibility hi all, In VB we used to have versioning by implementing a) No compatibility b) Project Compatibility c) Binary Compatibility how can the same things be achieved explicitly in .NET in context of all these three for CLR Components(managed Code). please guide us through the steps to implement managed component on client machine for newer version as well as older version. Scenario : I have made a class library in which there is a method Test(int a,int b) This class library is being called by client. 1) now I am altering the method (test) definition, so when would the client get the newer copie of the test method, how will system identify that which version has to be picked. 2) or I am altering the method (test) signature by providing new arguments, now when would the client get the newer copie of the test method. please guide us through the steps and provide me some resource on net. Please reply ASAP. bye AMIT PUROHIT Tag: Can .NET & IExplorer well work together? Tag: 56712
  - 15
    - MethodInfo Invoke - getting source line number after TargetInvocationException Hallo, I have a problem getting the line number of an exception thrown in an executable generated using ICodeCompiler (from a source text file) and then invoked. I catch the TargetInvocationException in Invoke, but line number of where the exception in the ICodeCompiler executable is thrown is missing! However assemblies referenced by this executable can show line numbers (if debug versions) All that is said regarding the code compiled is that the exception was at Main(). CompilerParameters.IncludeDebugInformation is set to True Source snippet shown below: Thanks for any help, Nick CompilerParameters cp = new CompilerParameters(assemblynames); cp.GenerateExecutable = true; cp.GenerateInMemory = true; cp.IncludeDebugInformation = true; TempFileCollection tfc = new TempFileCollection(); CompilerResults cr = new CompilerResults(tfc); cr = icc.CompileAssemblyFromFile(cp, fileName); If successful I invoke using: System.Reflection.MethodInfo m = cr.CompiledAssembly.EntryPoint; try{ m.Invoke(null, null); } catch(TargetInvocationException tie) { Console.WriteLine(tie.ToString()); Console.WriteLine(tie.InnerException.ToString()); } Tag: Can .NET & IExplorer well work together? Tag: 56711
  - 16
    - CGI Hi All, I have a slight problem needing to produce a simple application which needs to run as a cgi. Unfortunately due to historical reasons the application needs to be an exe hence the use of asp.net is no good. The problem I have is using a response and request functionality in vb.net for use as a cgi. (Should I create this as a console application?). I will only really need a response.redirect and request.form. Basically going to read information out of a form and process the information then jump to a page depending on the process. Any clues please. Thanks Robbie Tag: Can .NET & IExplorer well work together? Tag: 56696
  - 17
    - framework classes for WinInet.dll? Hi, I try to establish a dial-up internet connection in my VB.NET application. I found some VB6 code examples for wininet.dll which is part of the Win32 API. Example: Private Declare Function InternetAutodial Lib "wininet.dll" (ByVal dwFlags As Long, ByVal hwndParent As Long) As Long Is there an equivalent API in the .NET framework or do I have to call wininet.dll from my VB.NET app directly? Thanks, Guido Tag: Can .NET & IExplorer well work together? Tag: 56693
  - 18
    - Access - dotnet comparison Hi all, I have an old app (its a relativ small app) in acc-dao-msde (odbc) which i would like to reprogram for distributing 10-100 times. Now i should decide the platform i will use for the development: Access2000/XP - ADO - MSDE or dotNETvb If i use Access i will need about 100 hours. dotNet i have to learn first. - What are the adavantages/disadvantages using dotNET? - to create reports i have to buy cristal report or something similar? - in dotNet there are no subforms and no endlessforms? - The development costs (time, tools) for dotNET are quit higher than in access? - developing / distributing an app: which platform produce more headache thanks in advance for your ideas Peter Tag: Can .NET & IExplorer well work together? Tag: 56691
  - 19
    - Strange Error after leaving program overnight I'm developing an application that needs to run 24/7 (its not a mission-critical application, but most of our users of the Win32 version leave the program running continuously.) Last night I did the same, and when I returned I couldn't get the program to resume - the screen was just blank. I found the reason for this when I returned to the VS.net IDE - there had been an exception thrown. The problem is, I'm pretty sure its nothing I can do anything about in my own code. The exception was "An unhandled exception of type 'System.BadImageFormatException' occurred in <mymodule.dll>. Additional information: an attempt was made to load a program with an incorrect format". I was running in the IDE and it is the only time it has happened, but this is also the first time I've left it overnight, so I want to do due diligence in trying to find the source of the error so I can address it. I've googled for this error and found many references, so many in fact that looking was almost pointless - this error was apparently around at least since Win95... Any ideas on what might be the problem?? Michael D. Bray mbray@ctiusa.com Tag: Can .NET & IExplorer well work together? Tag: 56690
  - 20
    - Http stream performance Hi. I'm reading a 5 meg (or so) file from the response stream of a WebRequest, and it's pitifully slow. I mean *really* slow, in the order of 15 minutes to download. Now obviously I'm caching this on the client (Windows app / IsolatedStorage), but I can't have it taking this long to download in the first instance. We've got Gigabit LAN. what's the bottleneck? I could make the resource available via a different protocol / means if necessary to overcome the problem. Has anyone had similar issues or know of a better method of large network downloads? Cheers, Leon Tag: Can .NET & IExplorer well work together? Tag: 56688
  - 21
    - Underlying bound datasource not reflecting changes to textbox value until control loses focurs I have a column from a dataset bound to a textbox on a user control, hosted on a form. The control has a Save method which writes the contents of the dataset back to the db through a dataadapter. The hosting form has a menu item (save) which fires the control's Save method(). However, the contents of the textbox are only written to the bound dataset when focus is lost from the textbox. With only one control on the usercontrol, there's nothing else to get focus. Using the ContextManager.EndCurrentEdit method doesn't work - the textbox wont expose the changed text value until focus is lost therefore EndCurrentEdit doesn't know anything about this new value. Ideally need some mechanism on a textbox that for flags a pending update for the ContextManager's EndCurrentEdit to identify in much the same way as losing focus off a textbox does. Any ideas? Tag: Can .NET & IExplorer well work together? Tag: 56680
  - 22
    - why .net cann't access Java webservice? why .net cann't access Java webservice? i programed a java webservice, and a client by MS SOAP Toolkit. it work well. Howerver, a .net client cann't access the java webservice and report the following exception: unhandled exception£º System.Net.WebException: resquest failed because of http status code 405£ºMethod not allowed¡£ at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClie ntMessage message, WebResponse response, Stream responseStream) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodN ame, Object[] parameters) at MyHelloService.sayHello(String String_1) at MyClient.Main() -- ¾´Àñ£¡ Ð¤Èª Ò×Ë÷µÃ(±±¾©)Í¨ÐÅ¼¼ÊõÓÐÏÞ¹«Ë¾ (010)65889666-8010 xiaoquan@aircom.com.cn http://www.aircom.com.cn Tag: Can .NET & IExplorer well work together? Tag: 56677
  - 23
    - AssemblyVersion not accepting 1.0.*.1 Hi all, According to the documentation of the AssemblyVersionAttribute, it should accept version strings like '1.0.*.0' However, when I use that format I get an error: (29): Error emitting System.Reflection.AssemblyVersionAttribute' attribute -- 'The version specified '1.0.*.0' is invalid' The line in my AssemblyInfo.cs reads: [assembly: AssemblyVersion("1.0.*.1")] I would like to be able to specify Major,Minor and Revision but use the automatic Build number... am I doing something wrong, is this a bug, or is the documentation incorrect? TIA Dick Appel Tag: Can .NET & IExplorer well work together? Tag: 56675
  - 24
    - Menu Designer Does somebody know where can I find information about Menu Designer? I make a component and it need to look similar to MainMenu component at design time. It is not inherited from MainMenu Tag: Can .NET & IExplorer well work together? Tag: 56673
  - 25
    - Decimal class now preserves trailing zeroes after the decimal point How can I disable this behavior. Tag: Can .NET & IExplorer well work together? Tag: 56671
- Next
  - 1
    - Debugging shared assemblies - symbols not loaded Hi ! I try to "Step Into" my shared assembly while debugging, but this doesn't work for me.... I did the following: 1. Referenced in client the shared assembly as "Copy Local = False" 2. Copied *.pdb of my shared assembly to bin directory of my client (now the client and shared assembly pdb reside in the same directory). When I run my project in output window I can see that symbols were not loaded: 'SharedAsmClient.exe': Loaded 'c:\winnt\assembly\gac\sharedvbnetairvehicles\1.0.0.0__b01c8341480ae057\sharedvbnetairvehicles.dll', No symbols loaded. Even when I run my client as an external application from within my shared assembly project, I am getting the same problem. Where am I wrong ? Thanks a lot. Jean Tag: Can .NET & IExplorer well work together? Tag: 56664
  - 2
    - Memory Leak with Unmanaged Objects Hi, I am getting a strange scenario where I am using RCWs for CDO and ADO in my managed classes. When the managed objects get destructed, it seems the referenced unmanaged resources are stacking up in memory for ever. Does'nt GC take of those too? Please note that I am using these unmanaged object references in method level in managed classes, but not at class level. I have tried Marshal.ReleaseComObject method to explicitly detroy the memory trace of the com object, but there is no improvement noticed in memory usage by CPU, and getting higher every minute. Please let me know how to dispose unmanaged objects at method level ? (The exact and right way indeed.) Regards Tom Tag: Can .NET & IExplorer well work together? Tag: 56662
  - 3
    - .NET based diary/note tool Hi, I developed a small PIM tool with .NET. Here is a brief function list: Write diary Emphasize date on calendar Create notes with rich formats Set tasks/reminders Reminder on important dates or holidays Can embed OLE objects Support file attachments Support 128-bit RC2 encryption to protect document You can check its homepage at http://weixiang.nease.net/diarium/index.htm One year before, the original motivation for me to develop it is to write daily and keep notes on desktop. Now I am using it to keep daily tracks and sudden inspiration. And also I found it is helpful to be used as a nonvolatile clipboard to save some important source codes and chat logs. Since I thought it might also be useful to others, I built a website for it. Hope you can provide me some ideas on how should I improve it :) Sincerely yours, weixiang Tag: Can .NET & IExplorer well work together? Tag: 56649
  - 4
    - Can I control the GAC display name of my assembly? It's looking like the GAC display name is always the name of your dll. Is there any way to control the display name? Here's some background, in case you're interested. I am making dialog that lets you browse the GAC (using fusion.dll), select an assembly and create an object within the assembly. This is to achieve location transparency for our servers - similiar to how Ole View worked in the COM days). Trouble is, it's very hard to see our assemblies in the mass of microsoft and other third party assemblies. As far as I can tell, there is no information offered by the GAC API that will allow me to filter out our servers (eg. the company name attribute). So that's when I thought it would be cool if I could register our servers with a namespace (eg. MyCompany.MyServer ) that I could use to filter on, but it appears that the GAC display name has to be the assembly name. I guess I could name my dll MyCompany.MyServer.dll (Microsoft does it), but I'd rather not have to rename my dll name every time I want to change the GAC display name. Maybe the GAC is not meant to be used as a means to create objects with location transparency. Please feel free to propose alternative solutions. Thanks, Aaron Stibich Tag: Can .NET & IExplorer well work together? Tag: 56647
  - 5
    - Wrong Byte order when writing with a binary writer Hi! I have the following problem: I want to write an integer value (e.g. 14) with a binarywriter. The written file contains the following entry: 0E 00 00 00 I want the entry to be the following: 00 00 00 0E Does anybody know how to get the desired result (Language vb)? Thanks in advance, Marko Tag: Can .NET & IExplorer well work together? Tag: 56639
  - 6
    - Equivalent of a C++ library What is the equivalent of a C++ library in VB .NET? I have a collection of classes that will be used by several Windows applications (.NET solutions). How do I go about putting them into a "library", that can be shared. Tag: Can .NET & IExplorer well work together? Tag: 56638
  - 7
    - Stream Reader getting to the bottom of the file I'm using a FileStream, and a StreamReader to read a file. When I open the file I need to get to the bottom of the file and read some data about the contents of the file, and then go back to the top and process through the file (line by line using StreamReader.ReadLine). Is there any easy way to do this? Can I open the file from the bottom or anything like that? jeffpriz Tag: Can .NET & IExplorer well work together? Tag: 56628
  - 8
    - Visual Studio 2002 and .NET Framework 1.0??? According to the help file of Visual Studio 2003... "Visual Studio .NET 2002 shipped with version 1.0 of the Microsoft .NET Framework SDK; Visual Studio .NET 2003 shipped with version 1.1. If you have both versions of the .NET Framework installed, Visual Studio .NET 2003 allows you to choose which version your projects support. Visual Basic, Visual C#, and Visual J# projects use a new property, Supported Runtimes. Visual C++ provides a way to manually specify runtime support." But, for users who ONLY have VS2002, can they just download and install the .NET Framework and SDK 1.1 and compile to 1.1 using VS2002? Or am I required to buy VS2003? TIA -samantha Tag: Can .NET & IExplorer well work together? Tag: 56627
  - 9
    - IE Download icon within .NET Framework? Hello all - I'm not 100% sure if this is the right newsgroup to post this question but......I'm attempting to download a file from an FTP site from within my VB.Net exe. Is there something within the .NET framework that I can use that is similar to displaying the typical IE Download Dialog box until my download is complete? Thanks Tom Aguirre Tag: Can .NET & IExplorer well work together? Tag: 56624
  - 10
    - connection pool exist after program ends I have a test program that connects to SQL server. All this test program does is create a connection and then closes the connection. The following code is a function to create N connections and then close them... testing the use of the pool which i find it does work as stated in the docs. Now, the issue i do see is that when i close this program ( windows application ) the connection pool still exists. When i run the program again and do another test the second instance of the program will create a new connection pool and then increment the connection counter by N. When this program exits the connection pool still exists. What i would like to know is why the connection pool still exists after my program exits. I am checking the status of the connection pool information via the Performance monitor. I want to know if i should be worried that the number of connection pools increase per instance of the application i load. But each instance correctly pools its own connections in its own connection pool.... help please!!! -mark private void recConnect( int count ) { SqlConnection tmpConnection = new SqlConnection( conString ); try { tmpConnection.Open(); } catch ( Exception err ) { textBoxLog.Text += "Connection " + count.ToString() + " " + err.ToString() + " " + err.Message + Environment.NewLine; return; } if ( count > 0 ) recConnect ( count - 1 ); tmpConnection.Close(); tmpConnection.Dispose(); } Tag: Can .NET & IExplorer well work together? Tag: 56622
  - 11
    - XPathExpression.AddSort not working with xmlns Hi there, don't know whether anyone ran into this issue formerly (in .NET 1.0). I have an XML document with a default namespace (indicating the target namespace of the XML Schema used to validate the document): <ObjectIndex xmlns="http://ref.devlink.net/opal/runtime/ObjectBaseSchema .xsd"> Adding the default namespace to an XmlNamespaceManager with a bogus prefix and prefixing element and attribute names in XPathExpressions is the only way that works to evaluate and search with XPathNavigator on documents that have such a default namespace applied, which is annoyingly enough. What's more, trying to sort the selected nodes using the XPathExpression.AddSort method doesn't seem to work when a default namespace exists - simply NO nodes at all are returned! Using the bogus namespace prefix within the sort key works, if (and only if) the namespace manager has been added to the XPathExpression twice (!) - before and after the .AddSort () statement. Moreover, although now the selected nodes are returned correctly, the desired sorting is simply NOT applied to the resultant node set!! What am I missing here? Is this a framework bug? I don't want to remove the default namespace - I need it for validation and when selecting with XPath, I use the performant, but read-only XPathDocument rather than the DOM-Document... Any help would be greatly appreciated. Best, Philipp Tag: Can .NET & IExplorer well work together? Tag: 56621
  - 12
    - any example of graphs? I want to plot 1. VI curve 2. Sine wave. Any links ? Thanks. Tag: Can .NET & IExplorer well work together? Tag: 56620
  - 13
    - Don't forget to RSVP for CSSG Meeting Sept 11, 2003 Our meeting for the month of September will be on 9/11/2003 from 7 to 10 pm for more info please visit our website: http://www.csharpstudygroup.com David Foderick will be speaking about Introduction to .NET Persistence - a preview of Object Spaces. This presentation introduces you to the powerful concepts at the core of .NET persistence layers. You will see examples of coding techniques that reduce your data access code by up to 75%. Unlike ADO.NET, persistence layers enable inheritance and polymorphism, fulfilling the promise of true object-orientation. By mapping your domain classes onto relational tables (with ORM), a persistence layer blows away the object-relational impedance mismatch. All of these benefits are the result of extracting persistence from your business objects and placing it into a persistence layer. If you are writing object-oriented enterprise applications then you don't want to miss this session. David Foderick is an independent consultant in Southern California specializing in .NET technologies. He is a Microsoft Certified Solution Developer in .NET and has a degree in Electrical Engineering from the University of Minnesota. Our speaker has requested Chinese Food for the evening - a $5 meeting/dinner fee will be greatly appreciated. Don't let us run out of food - please RSVP by emailing victor@options-sc.com or frank@atinnovations.com - we look forward to seeing you there!!! Until next time - happy coding! Tag: Can .NET & IExplorer well work together? Tag: 56619
  - 14
    - MMC snap-in development using .Net framework... Hi all, I have the following queries regarding MMC snap-in development: 1. Is it possible to develop snap-ins using .Net framework? 2. If yes then what are the namespaaces that have the implementations for the Interfaces required for snap-in development? I would really appreciate your help... Thanks a lot. Best regards, Avinash Tag: Can .NET & IExplorer well work together? Tag: 56617
  - 15
    - Limitation on Multiple File Selection using CFileDialog I have an application wherein I need to select multiple files. I am using a CFileDialog class for opening the 'Open file dialog' . However i cant seem to select more than 2605 files. I mean i can select more than that but the operation supports only 2605 files. Is it a limit set by windows API on the number of files that can be selected at once. Tag: Can .NET & IExplorer well work together? Tag: 56614
  - 16
    - Question about VC++ Com and C# Hi I've a com that has been written in VC++ 6.0. I've included it in my C# project using "Add Reference" Option. I'm using few methods of this COM in my C# code. I wanted to ask that will i have to re compile my code (to update the interop*.dll that is created for each reference) each time i change my COM without changing the the methods that i've used in my C# code. The change can be like adding some new method..though it is not being used by C# code. Since the exe generated by this C# code is to be run on another system..so i ship three things to other system. 1. Exe 2. Interop*.dll 3. COM dll. So now the question is that will i have to update all of these things every time i bring any change to my COM or just replacing the COM on the other system and registring it will do.. Hope i've made my problem clear. Thanx and Regards Usman Jamil Tag: Can .NET & IExplorer well work together? Tag: 56612
  - 17
    - security/obfuscation question Hello all, Our company is trying to write some code in C#/.NET that we don't want an end user to be able to see. The algorithms are not that complex, but are sensitive such that if a user could decompile them, they'd be able to bypass alot of things we don't want them to bypass. We've looked at some obfuscators and, although they make it more confusing, they certainly don't make it impossible for someone to figure out if they have enough time on their hands. Because of that, we've turned to another option. This is what we're thinking - please feel free to poke holes in it and tell me i'm wrong. First, we'll write the "sensitive" code in vanilla C++ and compile that into a .dll file. Then, we'll statically link that .dll file into a Managed C++ .dll file with some more functionality. (we've read that static linking only works for C++ into Managed C++) Last, we'll reference that .dll file from the main application (written in C#) and access the functionality provided by it via normal means. In addition to all this, we'll be signing all of our .NET assemblies using normal signing procedures documented all over the web. If i'm not mistaken, this will do two things. 1) The signing of the code, along with the versioning and things already built-in, will prevent a user from replacing the Managed C++ .dll with their own .dll that does other things we don't want. 2) By hiding the sensitive code in vanilla C++, which is then embedded in the Managed C++ dll, we're making it near impossible for someone to decompile the assembly and get to that information. We haven't tested #2 yet to make sure it works (we've just read it has, we're testing next). Does anyone know for sure that it does/doesn't work? Are we on the right track here? Is there possibly another option available to us? Thanks in advance, -T Tag: Can .NET & IExplorer well work together? Tag: 56609
  - 18
    - WebRequest via SSL fails Hi, I'm experiencing a problem trying to perform a WebRequest to an SSL & Basic Authentication protected web server. The code I'm using is as follows: HttpWebRequest request = () WebRequest.Create(https://someurl); request.Credentials = new NetworkCredential("uid", "pwd"); request.PreAuthenticate = false; WebResponse response = request.GetResponse(); However, when I call GetResponse(), the process blocks for about 20 seconds, then throws a WebException with status SecureChannelFailure. The server hosting the site is running iPlanet and the server certificate is invalid. However, I've tried using my own CertificatePolicy (one that just accepts anything) and I get the same problem. Also, if I don't pass the credentials I still get the same error. Which leads me to think that the problem is more fundamental than the invalid certifiate. The strange this is, if I navigate to the url from IE, I can get in without any problems (apart from having to OK the invalid certificate, and entering the credentials when challenged). Also, if I use ServerXMLHTTP from an asp page with the following code, I can get in without any problems at all. Dim http Set http = Server.CreateObject("MSXML2.ServerXMLHTTP") http.open "GET", https://someurl, False, "uid", "pwd" http.Send Response.Write http.getAllResponseHeaders So, I imagine that there must be some configuration of the WebRequest that I am not correctly doing. Does anyone have any ideas? Cheers Ian Tag: Can .NET & IExplorer well work together? Tag: 56608
  - 19
    - Truly bizarre - XmlSerializer + ADO.NET = Thread Handle leak? After two days of debugging, I have finally discovered a very odd bug when using the XmlSerializer object and the SqlConnection object. It seems that if you instantiate an XmlSerializer object before opening a connection to a SQL database, then all future Thread objects created in the entire program will not be garbage collected. Since my application is a TCP server, it is constantly creating threads using the Thread object. If I let it run for a couple days, and watch the Handle count in the Task Manager (click View...Select Columns...) or even better, SysInternal's Process Explorer, the thread handle count will get well above 200,000. Eventually the app runs out of memory. I'm using the 1.1 framework. Try this sample code below and see for yourself (compile as a console app): class Class1 { [STAThread] static void Main(string[] args) { // any valid database connect string string dbConnectString = "replace this with your DB connect string"; SqlConnection db = new SqlConnection(dbConnectString); Console.WriteLine("Press enter to start..."); Console.ReadLine(); // All you need to do is instantiate the XmlSerializer to produce the problem. // If you switch the next two lines, the problem goes away! XmlSerializer xs = new XmlSerializer(typeof(object)); db.Open(); db.Close(); // create and finish a bunch of thread objects for (int x=0;x<100;x++) { Thread myThread = new Thread(new ThreadStart(DoNothing)); myThread.Start(); myThread.Join(); } // this should clean up all thread objects (and therefore, handles) GC.Collect(); Console.WriteLine("Press enter to exit..."); Console.ReadLine(); } static void DoNothing(){} } If you compile and run the above class, then watch its process, it will allocate approximately 570 system handles and never release them. Obviously, the workaround is to open up a connection to the database before using the XmlSerializer. But unfortunately, I'm using the XmlSerializer to parse an XML app configuration file which contains the DB connect string itself. Chicken-and-egg you might say. nick ===================== Nick Farina CTO Spotlight Mobile, Inc. ===================== Tag: Can .NET & IExplorer well work together? Tag: 56607
  - 20
    - Embedding Java in .NET Does enybody if it is possible to embed Java component in a .NET control? thanks, viktor Tag: Can .NET & IExplorer well work together? Tag: 56604
  - 21
    - Exception Handling Hi, A button event on my page actually triggers a chain of method calls, and each of these methods has its own try catch statement. The error is thrown all the way from DataAccess->Business->and subsequently handled in the Presentation layer. My problem is, if i do a try catch, the inner exception of the exception which i get in the presentation layer only shows what happened in presentation. The bus, and presentation exceptions stacktraces are all lost. However, if i DO NOT use try catch, and just handle the exceptions in the web (meaning try catch in button_clicks, page_loads), i get the entire chain of event leading to the error. Is this by design (try catch throw statments removes my exception trace)? My goal is the obtain the entire chain of events, for error trapping and debugging purposes. Thanks in advance Tag: Can .NET & IExplorer well work together? Tag: 56602
  - 22
    - call c++ mfc classes directly out of c# classes hi how can i call mfc c++ classes directly from c# code? i am interested in doing this in the compactframework as well as in the normal. thanks clemens Tag: Can .NET & IExplorer well work together? Tag: 56601
  - 23
    - SafeArray in Inter-op Hi, Prototype of a method in com ocx is func1(variant far *) inside which this pointer is converted to a safearray How do I pass the parameter to this method from C#. If I pass an type of object to this method in the com it is throwing an error saying "Invalid parameter used". Is there anyway of marshalling it. Thanks in advance Subhashini Tag: Can .NET & IExplorer well work together? Tag: 56597
  - 24
    - Enterprise Sample, VisualStudio.NET 2002 Hello, I'm trying to reinstall FMStocks7 from the Enterprise Samples. Environment: VisualStudio.NET 2002, Windows 2000 Advanced Server, .NET Framework 1.1, MS SQL Server7.0. The error I get in the setup log file is: ******************************************************* $ Run C:\Program Files\Microsoft Visual Studio .NET\Enterprise Samples\FMStocks7\.\FMS.exe System.Management.ManagementException: Provider load failure at System.Management.ManagementException.ThrowWithExtendedInfo (ManagementStatus errorCode) at System.Management.ManagementObjectEnumerator.MoveNext () at FMStocks7.Tools.Configuration.CreateVariables(String [] argv, Int32 argi, Int32 argc) at FMStocks7.Tools.Configuration.Init(String[] argv) Provider load failure $ Run C:\Program Files\Microsoft Visual Studio .NET\Enterprise Samples\FMStocks7\.\FMS.exe System.Management.ManagementException: Provider load failure at System.Management.ManagementException.ThrowWithExtendedInfo (ManagementStatus errorCode) at System.Management.ManagementObjectEnumerator.MoveNext () at FMStocks7.Tools.Configuration.CreateVariables(String [] argv, Int32 argi, Int32 argc) at FMStocks7.Tools.Configuration.Init(String[] argv) Provider load failure ******************************************************* Both WMI and WMI Driver Extension run.What could be the problem preventing the installation? Thanks a lot Tag: Can .NET & IExplorer well work together? Tag: 56589
  - 25
    - HttpWebRequest Problem Hi, I am making requests against my website using HttpWebRequest. It works fine, I get the response and all. But when I try do the same request against my local web site (localhost), I get (401) Unauthorized. Could that be some settings in iis ? Thanks for you help Franck Tag: Can .NET & IExplorer well work together? Tag: 56583

I want to know if .NET's UserControl can work well like Java applet or
ActriveX control in the microsoft's Internet Explorer.

Thanks From ZBUILDER.
2003.9.

Top

Re: Can .NET & IExplorer well work together? by William

William
Thu Sep 11 20:17:29 CDT 2003

Yes. But remember that usercontrol is different depending on where you
build it from. Web Controls are different from Winforms ones...but you
actually have a lot more power in the context of .NET as a whole.
"zbuilder" <jianshez@bjxj-xjgc.com> wrote in message
news:uhPw0kMeDHA.1752@TK2MSFTNGP10.phx.gbl...
> I want to know if .NET's UserControl can work well like Java applet or
> ActriveX control in the microsoft's Internet Explorer.
>
> Thanks From ZBUILDER.
> 2003.9.
>
>

Top