What is the fastest way to get the 'hash' (or CRC32 or whatever) of the contents of an object i don't care what's inside, I just want the 'hash' of its contents (not to mixed with object.GetHashCode() which gives a hash code of an instance, I want the hash of the data contents) Evan ...more >>

I have a mixed DLL (a managed DLL in C++ calling functions in other unmanaged DLLs) which I can build successfully in Visual Studio 2005 but can't reference as I get then immediately the error: is not a valid Win32 application. (Exception from HRESULT: 0x800700C1) Trying to find out what...more >>

I have a Windows Service that I created in .NET version 1.1 and it runs under the system account. I created a Windows XP SP2 Virtual PC (in Microsoft Virtual PC 2007) that has the latest updates. From this base VPC I created 2 new VPCs. One that has framework version 1.1 installed (and any...more >>

What methods of what classes I must use in .NET to get the info that GetCharABCWidthsFloat gives? Or what is a way to obtain char widths for the font in .NET ? Thanks in advance. ...more >>

I am writing a method that kind of works like the default implmentation of the serializing logic when using the Serializable attribute. I have a base "serializer" that is using reflection to determine what properties to serialize out. When I am deserializing I know the name of the property a...more >>

Time.Zone.GetDaylightChanges(2007) returns 4 (April) and 10 (October) for DST begin and end dates. That is incorrect. It should be 3 and 11. My registry is correctly updated for the 2007 rules (the TZI structure for my time zone has 3 and 11). Why is GetDaylightChanges() returning pre-20...more >>

Hi, I'm building an application that performs some operations of several kinds : file copy, IIS web site creation, etc... Since if one of this operation fails, all others have to be rollbacked, I started to look at the transactionscope class and IEnlistmentNotification interface. How ...more >>

I copied some code from a C#.NET program into a J#.Net program: StreamWriter sw = new StreamWriter(ThisFile); sw.Write(msg); sw.Write(sw.NewLine); The compiler says: Error 1 Cannot find field 'NewLine' in type 'System.IO.StreamWriter' But the same code runs just fine in my C# program...more >>

Background: I'm attempting to access a web page hosted on a server embedded in firmware on a device. I initially tried using the HttpWebRequest (which I know is coded properly since it works with other web servers) but the server embedded in the firmware is returning an error and the reponse obj...more >>

Hi, I need to substitute a method of a Framework built-in class with my own. Please suggest a way how I can do this (without having to copy/ paste whole source of a particular assembly). Reflection, probably? Alexei. ...more >>

I'm just discovered Version-Tolerant Serialization and am synthesizing it into an existing serialization scheme. What I read from the docs indicates that in the example below the .Deserialize() statement should throw a SerializationException indicating that field2 is expected from the data stre...more >>

Hi! I was wondering if anyone had to deal with a load balancer that didn't provide session stickiness when using IIS. I seem to be running into a bit of an issue with ASP.NET session state. I know it is possible to share session state across IIS servers using SQL Server, but the target enviro...more >>

In my application users generally only have one tab page and I'd like to hide the tab page buttons (headers?) when this is the case. I have not been able to find a way to do this. Do I need to re-apply an entire template to the tab control to have a handle into the appropriate object, or c...more >>

In many asp.net pages I want to trap for errors, but I often really dont do anything with the exception object itself, so I get annorying warning messages when it comes time to build. So i started changing how i catch exceptions like so: try { ....code here } catch(Exception) { //d...more >>

I have a query against a database that continues to crash my app with an Oracle CLient Error OCI-22053 Overflow Error. The query is: SELECT pt.adjusted_delivered_qty, pt.expected, (CASE WHEN pt.val2> 0 THEN pt.val1 / pt.val2 ELSE 1 ...more >>

Hi all, I've been doing some socket programming for a while and can get a server with multiple clients working fine on my development machine, but what does one need to do in order to have the server application hosted somewhere on the internet? These are more low-scale apps that I don't...more >>

Have data on a cd when i try to open the files the all have squares and no text how can i get the text back please help thank you...more >>

not sure where to post this question about System Center Service Manager so maybe someone could post a link or something, but im trying to install this software and having a bunch of trouble installing some prerequisites. These are: ..NET Framework QFE Q925499 ..NET 2.0 Hotfix 925272 ..NET 2...more >>

Does .NET support a way to convert a double/single to a string using a minimum number of characters, similar to what Java does? If not, does anyone have any links to algorithms to do this? Thanks...more >>

I have a C# app that is doing a series of coordinated disk writes. I want to prevent or postpone the death of my process by the user while I am in the middle of this sequence. Can I do this?...more >>

Hi, I'm currently working with sockets. I accept connections using m_mySocket.Listen(BackLogCount); But when I want to stop listening, I shutdown all my clients and call m_mySocket.Close(), but it always raise a OnConnect event (actually, it calls the callback function as if there was a new...more >>

I have a need to manage a rather large set of indexed objects. Currently I'm doing this in memory with a Dictionary<> and persisting to a text file, but it has an unpleasant habit of using very large amounts of memory (several GB). So I would like to offload these objects onto disk (access t...more >>

In the non-pooled System.Threading.Thread class, there is a Join method that will wait until the thread is complete. How can I easily simulate this using the thread pool. Basically, I have an application that, given it's druthers, would generate over 300 threads, but because of resource li...more >>

What's the current recommended best practice for the exception to throw when an argument is invalid? I could have sworn there was a general InvalidArgumentException exposed by the framework, but if it's there I must be blind. It seems like this is a common enough occurence that there would ...more >>

Hi I am developing a complex VB.Net Windows application for an engineering firm (don't ask me why they prefer VB.Net...). All the engineering calculations are done in FORTRAN which is compiled to a non COM type DLL (meaning you can't create an Interop for it). This is called from within the ....more >>

I've just converted a C# app (see my Visual Studio information below) to a 3D API (OSG) using the OsgDotNet C# to C++ wrappers. When I tried to run it the first time I got a FileNotFoundException (see below). The exception is thrown in main when it tries to create the first Form. I can't ...more >>

Looking at List<T> and LinkedList<T>, we have: public class List<T> : IList<T>, ICollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable public class LinkedList<T> : ICollection<T>, IEnumerable<T>, ICollection, IEnumerable, ISerializable, IDes...more >>

I'm running Money 2005 UK Standard on XP Pro SP2. I have income from various sources including a few investments, for which I enter the dividends iin Portfolio Manager and show them as transferred to my current bank a/c. All entries reconcile with my downloaded bank statements. But when I tr...more >>

Hello all, I am developing a windows service (c#, .net 2.0, windows 2003). When the service starts it performs several functions that depend on an internet connection, downloading rss feed etc. The problem is, that if the connections is very slow, it takes a long time for the status of th...more >>

Does anyone out there know how many classes there are in .NET 2.0? Thanx, Mike ...more >>

Hi all, I am currently having a problem with NT Bkup. I have a file server and a separate DC. Dc is running windows server 2003 R with SP2. Since yesterday while doing a simple backup on tape, it gives me the error as below: Backup Status Operation: Backup Active backup destination: Ecri...more >>

Hi, Does HttpWebRequest supports SSL session cache? That is, if i make a ssl request to a server (using HttpWebRequest ) and close the conection will the second https request using HttpWebRequest to the same server will require to do handshake all over again? I know that IE and Firefox sup...more >>

I can not find my last post, and I want the answer. I am new to forum. Start me there - how do i find my last post ? AND How do i come back to the same place? -- Thanks, Tina D...more >>

Hi all, Having Visual Studio 2005 .NET Framework 2.0 Windows XP SP2 I installed .NET Framework 3.0 ("dotnetfx3".exe - 50 MB). The installation was successful, and if I go to Settings -> Control Panel -> Add or remove programs, I can see the "MS .NET Framework 3.0". However, when I op...more >>

Hi, I just started learing Visual C# and the .NET framework. I am thinnking of developing a Windows application with features like Contacts, To-Do List, etc.. Now, once I am done with this, I wish to develop a Web application with the same functionality. Is it possible that I can do it in suc...more >>

Is there a way to get all AppDomains of a specified Assembly?...more >>

G'day, I have encountered a problem with serializing a class using xml serialization and a memory stream. what i am attempting to do is serialize a class and the read the serialized string into an xml document. However when I convert the memory stream to a string the first character shoul...more >>

Hi, I would like to ask to ask why when I output some xml to the console window i get different encodings. for example, consider the following code. XmlDocument xmldoc = new XmlDocument(); xmldoc.LoadXml(@"<?xml version=""1.0"" encoding=""utf-16""?> <Vehicle xmlns:xsi=""http://www.w3....more >>

I get the following error messages when compiling my code: The best overloaded method match for 'ByteArrayToStructure(byte[], ref object)' has some invalid arguments Form1.cs Argument '2': cannot convert from 'ref RESPONSE_STRUCT' to 'ref object' Form1.cs My code is as follows: public ...more >>

Every once in a while my .Net Framework 2.0 "breaks", causing applications to fail. So I clean and reinstall it, and it fixes it. But several days later it "breaks" again. I'm not sure if this is related, But I have been trying to repair and install .Net Framework 3.0, which fails every tim...more >>

Hi, I have an application that calls an async delegate from the UI thread. The async operation throws an exception with an inner exception attached. When I get the callback in my form class I call this.Invoke(...) which throws an exception as expected. However, the exception thrown is the inner...more >>

Hi there, I need to create a desktop application using both C# and JavaScript. Is it possible? How can I do to have a DLR "up and running" on my machine? Which FW version shall I download and install? And which development environent shall I use? Thanks in advance. Best Regards, Giuli...more >>

Hi I am intrested in combining the results of the following 2 select queries into one to display data like this Count1 Date1 Count2 Date2 10 1/1/2007 6 1/2/2007 SELECT Count(*) as Count1, Str(Month(User.Logged),2) + '-' + Str(Day(User.Logged),2) + '-' + Str(Year(Us...more >>

Hi, According to RFC 2822: Internet Message Format, the following should be a valid email address: chris.o'connell@world.com But on using the aformentioned class, a format exception will be thrown when creating a message. Is there a way I can use this email address for a message crea...more >>

Hello, i´m using the backgroundworker in an Consolenapplication. For testing i write the current ManagedThreadid from Main, the Backgroundworker Dowork-delegate and RunworkerCOmpleted-delegate. i expected that the ids from Main and RunworkerCompleted are the saim - but they are not! ca...more >>

Hi, Our company has developed a smart client application using C# and Visual Studio 2005. We distribute the application using the ClickOnce technology. ClickOnce works fine when the clients are desktops where the user is an administrator, but we're experiencing problems installing the same...more >>

Hi, Very curious of the role of C++ today, was wondering if C# was actually written in C++. -- Thanks in advance, Juan Dent, M.Sc....more >>

I have already posted to the Sharepoint discussion group but I think that this is a more general dotnet.framework error than a Sharepoint error. I am getting the following error with Windows Sharepoint Services 3.0. Does anyone know the quickest method to correct the error described below. I ...more >>

Framework 1.1, I have an existing complex XML document. I need to add some namespace information to certain elements. Can anyone illustrate how to use and XmlTextReader and XmlTextWriter to add custom namespace info where I want it? Thanks. ...more >>

My environment: VS 2k5 Team Software developer SP1, VB.Net, Web Service I have a web service. I also have another class file. I am trying to call a web service operation from within my private class file on another thread. In my class file I have this Private Sub MyPrivateSub() Di...more >>