hello everyone. i need your advice to be implemented my code. i am making some program to send lots of data to Server. i wrote some code below. i am using c++/cli and C#, c and c++. c or c++ will be client C# will be Server with Net Remoting. c++/cli is to send data between c/c++ an...more >>

A few of the users of my program are encountering an XmlException that looks as if the XmlSerializer is seeing an empty file (error at line 0, position 0, root element missing). I have a hunch the problem is that I was doing this: StreamReader r = new StreamReader(filename); XmlSerializer...more >>

Hello, I have an issue where I've replaced a single class field with a number of separate fields that allow more fine control. The problem is that my old files, saved using XmlSerialization, still have this old field name in them, and I need to be able to read it and set the new fields appro...more >>

Hi I've just begun learning C#, and it is really fun. I'm using a book called "beginning Visual C# 2005 Express Edition, From Novice to Professional". It manages to explain all the concepts very clear. But, what the book is missing is some good assignments with proposed solutions. I wonder...more >>

I was just trying to consume the simple HelloWorld webservice that comes in Visual Studio 2005 with a simple ASP.NET WebSite. We have created the web reference to the url that serves the HelloWorld Service and have invoked the response ... How do we call and post this "Hello World" response ...more >>

Hi - I know that this is most likely a Microsoft-ism, but none the less... I have a C++ class namespace JELLO { public ref class DEMO { public: DEMO() {;} ~DEMO() {;} bool DoStuff(const char *s1, char *s2) { int a = 1; } }; } And when I try and call this...more >>

I'm looking to implement the Enterprise Cacheing block as a plugin to an ASP page. I expect this page to be hit many many times a second and I'm concerned about thread safety. One of the 'bullet points' that I saw in the description of the block was "Thread Safety" but I've found nothing ...more >>

Hello, I have a regex and I want to modify the value of a named capture before doing the regex.Replace. So something like: string text = Regex.Replace(oldText, myRegex, @"<a href="$1">$1</a>", regexOptions); Now I want to modify the value of the second $1 just in case it is too long...more >>

I am trying to connect with a SQL server2005 database from a C# (Windows application) using a connection string and then use SQLconnection for a data reader which will use the result returned by a stored procedure. I get "an error has occurred while establishing a connection to the server .<s...more >>

Whats the best way of implementing authorization in a win forms application. I mean things like show/hide or enable/disable Save button ,creating context menus etc....more >>

Hi! I am developing an application, and i suspect i am forgetting to close a connection. Is there a way to se how many connections that are active to the sql server? Studio 2008 and SQL Server 2005 Developer is used. Regards Martin ...more >>

hey all, what's the best way to turn my csv string into sql parms? the sql parms can vary in count. thanks, rodchar...more >>

Hi, is this the same thing? string regex = @"(?'tag'.*?)"; and string regex = @"(?<tag>.*?)";...more >>

I need to remove non-printable characters from a text file. I need to do this in C#. The Hex codes for the characters I need to remove are '0C' and '0A' which equate to 12 and 10 in decimal. Their codes are 'FF' and 'LF' from the ASCII talbe. I have searched and searched and cannot come up...more >>

I am using the file upload control and want to limit the size of the file that is uploaded. But it appears as if it actually uploads the file and then does the check. Is that true? Ideally I'd like to have it give me the results back before it uploads the file so it doesn't need to waste al...more >>

PerformanceCounterCategory.Create() takes 3 minutes to add a new category!! How come? What can cause this? ...more >>

Anybody have a function that will calculate the number of business hours between two dates? I will assume eight hours a day and don't want to count weekends. TIA - Jeff. ...more >>

Hi, I have to develop an application which will print thousands of pdf files daily on different printers. I am planning to use the ShellExecuteEx command with "print" as the verb to send pdf documents to print. I want to know if its the right way or there is some other best solution for...more >>

After leaving a working project to work on a website I have now returned to experience the following exception private void LoadProducers(string currentFileName) { AppDomain.CurrentDomain.AppendPrivatePath(Path.GetDirectoryName(currentFileName)); Assembly producerAssembly = Assembly.LoadFi...more >>

The IEnumerable's documentation says: "After an enumerator is created or after the Reset method is called, the MoveNext method must be called to advance the enumerator to the first element of the collection before reading the value of the Current property; otherwise, Current is undefined. C...more >>

Hi - I have some C++ code (functions) that I'm trying to create a C++ class for that can be the used as part of a C# project. (Very simplified) The C# file ..................................... using LightBinding; namespace SrvLib { public class Bosco : MoreBosco { public st...more >>

One function in this fabulous DLL (http://www.codeproject.com/KB/ office/excelxmllibrary.aspx) requests a file read in the form of the Stream class...not StreamWriter or StreamReader or MemoryStream, just Stream. Since Stream is abstract, this makes it hard. I've done my best to bounce from Stre...more >>

Suppose I have a class A that works with instances of class B. I would like it so that only an instance of A can generate instances of B, but I would still like users of A to be able to handle instances of B, including passing them as arguments to methods on A. Is there any way to achieve this? ...more >>

Hi, I'm developing a Winform application in C#( .net 2.0). I've a dialog box where user can input text and that text would be sent across to other machine using sockets. When the user enters ASCII character which are non-printable like ASCII 20 ( using ALT+20), this character is convert...more >>

I want to share a structure array containing multi dimensional char array between C# and C++, by using memory mapped file. I already have C++ code for handling memory mapped file. I am passing pointer to the structure array as shown below for C++; I am able to work with pointer ( for C++ ). ...more >>

What's the best way to debug code that is being run during garbage collection? We are getting AccessViolationExceptions that seem to be happening during garbage collection. But when it hits the debugger, it is at whatever line of code the main thread was at when the garbage collector decided...more >>

Hi all, I found the following in MSDN The Flush method implements the Stream..::.Flush method; however, because NetworkStream is not buffered, it has no affect on network streams. Calling the Flush method does not throw an exception. So, does the networkstream write directly to the stream...more >>

In the webbrowser control, is there any reason why I can't see the "CanGoBackChanged" event in the properties box? How do I capture the event? Dom...more >>

Hello there, I have a class which I can serialize and deserialize just fine, but one of its fields actually contains html data, including <, > etc. Now in the serialized .xml files, these are actually escaped or converted into entities (&lt;) etc. How do I dump the html just the way it is w...more >>

Time for XP Free? An Open Letter To Microsoft Corporation Since the advent of the PC, the price of all components has dropped substantially in real terms. The one exception to this rule is the operating system. To be fair to Microsoft, in terms of value for money, Vista offers a lot more feat...more >>

Hi, I always thought that MVP (Model-View-Presenter) was a newer design than MVC ((Model-View-Controller), so I assumed that as time goes by, more and more frameworks would be implemented using the MVP pattern. But instead, the opposite is happening. All the major frameworks are MVC based (l...more >>

I am pretty new to csharp myself, but have been trying to do a few things that I am running into problems with. I know there is a way around it, but I just dont know what it is. I am hoping somebody here can help me. Here is a code example: string sanswer = ""; int answer; // have use...more >>

Hi! I have a question.. How can csharp read a text file and execute it in another application? What I mean is that, Im doing a drawing using Tekla Structures. But instead of doing the same thing over and over again, I want to create an exe file that allows it to read a text file and execut...more >>

SqlCommand findProducts = new SqlCommand("SELECT PRODUCT_TYPE_ID FROM PRODUCT_TYPE WHERE [NAME] = 'Meals'", sqlConnection1); This command returns a value of 17. How can i insert this value into a string variable? Please help . I tried this but it wouldnt work SqlDataReader myReader = findPr...more >>

Hi and Hello. Im new at .net framework. Now Im using C# . I have a little problem. How can I get a value of a text in the mdi parent form to child form. Example in VB6: form1.text1.text = MainForm.text1.text How to convert it to C# -- To be Happy is To be Yourself...more >>