I am working on a .net project and need some help. The project contains different components. Each component is in its privated assembly. For e.g Component1 is a C# library project in VS.net and compiles to a dll. Similarly Component2. All components implement an interface IService which has a S...more >>

I have a function as follows in managed c++. public foo( object *objectValue) { // pseudo code below, as I don't have exact code at this very moment. if( type of objectValue is int) { objectValue = objectValue * 2; } elseif(type of objectValue is short) { ...more >>

Hi guys, I was under the assumption that the default type access modifier for classes/structs is internal. But the MCAD Study Guide (from MS even) says public?!?! (The Dr. GUI .NET tutorial from MS's site says internal!!) So which source from MS do I believe? It is internal is it not? Tha...more >>

(Was originally, probably wrongly, posted to the vc subgroup.) (This doesn't appear to be a c# problem, but a problem with a bug in the Visual Studio c# compiler, but, any help will be welcome...) Oh, I forgot to list the error messages; I would be delighted if someone could explain how to d...more >>

Hi Is it possible to mask console input in a c# console application? What I mean is: if I entered string "test" in the console, it'll echo "****"(or nothing) instead of the string "test". I've tried setting the foregroud color of the console the same as the backgroud color through native API,...more >>

I have a quick (pun intended) question for the guru's out there. I have a piece of code where I am validating the input of chancters into a cell in a datagrid. I am using the keypressed event to get the charcter that the user typed and then allowing it to be passed to the cell. Now here is t...more >>

Hi Is there a way is a 'class library' to get the reference to window of application that uses the library ? I'm using class library to create a custom command for a closed source application (GeoMedia), so obviously I can't make it to pass this reference to my lib as a method parameter. ...more >>

I have a csharp, VS 2003 solution for a winform application The application uses an object called a "matter" and the class is defined in matter.cs. I can load matter objects into a combobox Matter[] matters= v.Matters; comboBox1.Items.AddRange(matters); And I can fetch the matter o...more >>

I have 2 threads using the same StreamWriter (obtained from FileInfo.AppendText). This first thread will always use the WriteLine() method and the second thread will always use the Flush() method. At the present, I have protected the access to the StreamWriter using a Lock() section. Is this...more >>

What i want to achieve(in runtime): A root named "Home" with nodes added to it named "A","B","C" and so on til "Z". I want these subnodes named accordingly Home_A, Home_B and so on, in the code so they can be accessed like Home_G.Node.Add("bla bla"). Basicly, i'm trying to make a "Register" w...more >>

Hello, how can I realize a server that starts a thread which is listening for connections. this thread have to start a new workerthread for each new connection and continues listening? some code snippets? thx ...more >>

Hi, I'm trying to develop an ASPX page that supports multiple languages. Everything has gone well till now - 1. Created a project in VS.NET 2003 2. Added 2 resource files named Captions.resx and Captions.fr.resx for English and French cultures respectively 3. Used the follo...more >>

Hello, wenn I create a list of running processes, how can I get the name of the executable file? thanks ...more >>

Well, here's the situation.. It's pretty simple; just that I can't get it to work. I have 2 Executables.. The first one is called CSharp.exe which is a simple WinForm App. I have a single button on the form which does the following OnClick. // CSharp.cs private void button1_Click(object ...more >>

I would like to be able able to implement some Access capabilities into my C# project. Is that possible? One of the capabilities I would need in my project is the Import Text Wizard so I can import a text file (like in Access) into another file (an MDB). Then the user would be able to divide the...more >>

I am trying to serialize a class to xml and I havent been able to figure out how to add attributes. I am trying to get a node to look like this <alert type="pager" >True</alert> I have this so far which produces this <alert>True</alert> [XmlElement("alert")] public string Alert { g...more >>

Is there a function that'll let me find a substring of a fixed size? in other words, I'd like to get a substring in position X and length Y from a string. Left or Right wouldn't work since the substring's usually in the middle. Thanks. ...more >>

OK, this should be my last question for the day. I have spent a couple hours on google trying to figure this out but I probibly just dont know what I really need to be searching for. I have a Windows Form program that calls a web service that will return (as a string) the full url to an image ...more >>

I'm trying to access a text file that was created by another process but I keep getting the contents of the file before the external process modified it. I believe the previous process left it open and doesn't let me access it. Is it possible for me to close the file before using in order to mak...more >>

Let's say class parent class B : parent class C : parent ....etc. (may add later......so I don't know how many classes will there...) I wanna to let the user type in the class name and instaniate a new instance e.g. string userinput = "classB" parent temp = new SOMEFUNCTION("classB"); I...more >>

There are some glimmers of off-Intel net support, I was wondering if its theoretically possible to write a language compiler that was portable to another platform? ...more >>

Hi, What is an easy way to create DateTime from a string that contains date in the following format "yyyyMMdd"? Take care, Sasha ...more >>

I was looking at this page http://www.garret.ru/~knizhnik/dybase/doc/dybase.html And noticed running the same code (Java ported to C# using the MS tool I expect) that the C# implementation is over 50% slower than Java in all tests. Coming in at the same speed as Ruby, which isn't known for i...more >>

Hi all I'm trying to traverse through the results from a query that returns more than 1 row. The data reader reads only the first row. The following code doesn't work. Let me know what's wrong. do { while(reader.read) { x += y; reader.NextResult(); } }while reader.NextR...more >>

What is the 'this' keyeword for? If I'm filling a textbox, what's the difference between this.textbox1.Text = "my text"; and textbox1.Text = "my text"; ? I normally use it w/o the 'this'. Thanks. ...more >>

In attempting to use the GotDotNet SerialStream class under Win98 a call to CreateFile("COM1",....) is failing. A call to Marshal.GetHRForLastWin32Error() returns a code of 0x80070078 ("call valid only in Win32 mode"). Does anyone know if this indicates that the CreateFile() call will just no...more >>

I am still struggling with this problem of getting my 2 list boxes to show the initials items as being selected on the first time that I go to the Tab with the boxes on them. I am reading from my database multiple bit columns with true or false and using the listbox.SetSelected( index, true...more >>

Can someone please explain to me why you cannot use enum at the method level to define a type. The declaration seems to only work at the class level. From my understanding enums are classified as a user define type. I do understand that in order to define a type you have to derive it fro...more >>

Hi, Can anyone help me to convert the following VB6 code into C#??? Declare Function SQLSetConnectOption Lib "ODBC32.DLL" (ByVal hDbc As Long, ByVal iOption As Integer, ByVal lValue As Long) As Integer Thanks in advance pcPirate ...more >>

I found in internet this example of code. I'd like to know somthing about what happens behind the scenes when these lines of code are executed: //----------- Code Snippet ---------------------------- GenericCustomer[] Customers = new GenericCustomer[2]; Customers[0] = a; Customers[1] = ...more >>

I am looking for a good referance on how to validate a string in C#. Specifically have a string which will contain a postal code that may or may not be in the US. I need to check this string to decide wheather it is in the US or outside the US. I think all I really need to do is see if the strin...more >>

I think this should be on topic. Many of us here may have considered purchasing Visual Studio.NET on eBay or other web auction sites. However, I would like to issue a warning that there are some sellers who will list the 2003 promotional upgrade (for sale by Microsoft for $29), evaluation copie...more >>

I would like to have a progress bar as part of my StatusBar. This is just like in Internet Explorer, where when a page loads a progress bar becomes visible, shows progression and disappears. I would like to achieve the same in my application for fetching files. Thanks Viay ...more >>

Hi, I have a function where I would like to test whether an object is of a certain type. Here is my code so far. public bool HasValidType(Type t, object val) { try { if (t==typeof(double)) { double x = (double) val; } else if (t==typeof(System.DateTime)) { ...more >>

I know this has been asked a million times, but I have read all the MS links to installing the .Net framework with a setup project and I still cannot figure it out. First of all the docs keep referring to Bootstrapper Sample, where is the Sample ??? All I can find is how to write the Settings....more >>

How can I remove the default exception handler handler? When adding a custom handler, I can't get rid of the VS.NET unhandled exception dialog. Ex: AppDomain currentDomain = AppDomain.CurrentDomain; currentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyHandler); MyHan...more >>

Using the Layout event of a control and the AffectedControl property, how do I know if a control was added to or subtracted from the main one ? Thanx. _____ Marco ...more >>

Hello everyone, I have a table, which contains a picture column, I put URL info into it. "www.myweb.com/1.jpg..." I want to show this picture in my crystal report, I find some samples show the "static" picture in Crystal report, No "Dynamic" one. Can Crystal Report do that? Thanks in advanc...more >>

I'm new at this so please bear with me. I have two webforms, for example purposes I'll say a.aspx and b.aspx... a.aspx has a datagrid populated from MS Access with all the records, including contactID. On b.aspx, I want to populate a datagrid with only one record, based on the selected row from ...more >>

On the advice of a user, I've timed stringbuilder v string. Here are the results. Here are the numbers: Total # queries 3747 Time in Milliseconds StringBuilder: String 460.6624 320.4608 350.504 220.3168 240.3456 230.331...more >>

I am in the process of creating an international GUI application with C# on ..NET1.1 (Win2k), which is supposed to implement a particular look/design. In order to achieve this, I plan amongst others to define a certain font (MS Arial Unicode) for the user controls, and provide custom controls whi...more >>

I transfert data in a Excel File. I want that the border of the cell in Excel have only left and right border. if i do : range.Columns.Borders.LineStyle=Excel.XlLineStyle.xlContinuous; My cell have up, down, left ,right borders. How can have only left and rigth border ? Thanks for you...more >>

Hello, I have got a very strange problem with the calcualtion of the the square root (Math.Sqrt()). I calculate in a loop a lot of of diameters maxDiameter = Math.Sqrt(maxCrossSection * 4.00 / Math.PI); minDiameter = Math.Sqrt(minCrossSection * 4.00 / Math.PI); In my Visual Studio .N...more >>

I want to Overload operator "+" such that I can add two complex numbers and but the sum into a third one, but I only want to call the constructor 3 times. Here is the current algorithm: Declare Three complex objects: Complex a,b,c; Sum a and b and save the result in c: c = a + b; ...more >>

hi, Does anyone have any sample code for this?? I can't find anything relvant at all. Please share out some code if you have any. thx...more >>