I can't find the answer to that in the Documentation. Besides, I don't know under what circumstances will Equals() and GetHashCode() be called. TIA Fernando Cacciola ...more >>

H this is the code in my windows for ------------------------------------ Cursor oldCursor = Cursor.Current tr Cursor.Current = Cursors.WaitCursor; ...............SOME PROCESSING............ DateTime dt = DateTime.Now.AddSeconds(10); while(dt > DateTime.Now) ...more >>

Hello, I have a question on inheritance, please see the code below for reference: **************************************************************** using System; public class Parent { internal int id; public Parent(int id) { this.id = id; } public void Meth( ...more >>

Hi, I'm new to webservices and I was wondering when you are able to invoke a webservice in your browser. When I return a string in a webservice , then i can invoke it but when I return a ArrayList that I build from data out of my sqlserver, I can't invoke it.I think it has something do to wit...more >>

Anyone know where to find a progress bar without a value that simply scrolls a couple of segments across the bar such as the one when XP loads? I had one and lost it :( Dont have time to make one at the moment. TIA JB ...more >>

I have generated documentation for my application the trouble is i have many namespaces..........I want to be able to give a brief description of these but for some reason i don't know how to. There is a description field in the documentation beside the name of the namespace but does anybody kno...more >>

I was just thinking... maybe this flickering problem is an XP-only thing? Does anyone who tried my problem reproduction code run XP, and see no flicker?...more >>

How can I debug an application on a Windows 98 computer when as soon as the application starts I get a runtime error. This is before anything starts or happens and there is no details to the error. I think it is because there is a missing DLL or something. I have both the .NET 1.1 framework...more >>

I was just wondering if there is a way in CSharp to list all of the available OLE Data Providers in the system? Mark ...more >>

Hi I want to use a transition effect on th images in a slideshow. I'd appreciate if anybody could help me do a transition effect using C# Thanks....more >>

I'm writing an Nntp library and I've run into a problem that I've run into before with async sockets. I fixed it before, but I don't remember how and I'm running out of ideas this time. My receive code is below. My question follows: private NntpStatusResponse ReceiveData(CallbackType callb...more >>

Hi I'm programming a application use the COM+, MSMQ, SQL server. I want to use one thread reading the data from the SQL server, and then put then to a System.Collections.Queue, use another thread get the data from the Queue and then Send them to the MSMQ. Now i meet a problem that the C...more >>

i know i could use the DateTime.DaysOfYear method to get the difference between 2 dates in days but what if the 2 dates are in 2 different years? DateDiff takes this into account but it doesn't exist in C#.. ...more >>

MyAssembly contains a Type ClassA with a member MyStaticSingletonInstance. I want to invoke this member to get an instance of the singleton. Maybe I'm missing something but it seems as though this is not possible! The reason why is that InvokeMember() requres a target instance. To get that ...more >>

Hi, How can I create a 2-dimensional arraylist ? Any link or suggestions would be apprecaited greatly. Thanks ...more >>

How to open/show/display .doc or .rtf ( having formatted text and pic ) in RichTextBox control in C#. ...more >>

Hi, I'm getting the following Exception and Message when I try to set an user's password in the Active Directory, I Would appreciate any help: The Network path was not found Description: An unhandled exception occurred during the execution of the current web request. Please review the st...more >>

hello, i need to make check the date of instalation of a software that i write; the instalation date is written somewhere in computer, that's not a problem; but, to check the diferrence between the present date and the install date, i need a reliable time source (i presume that the client will...more >>

I have a control on my page, but I don't know how to CAST it so that I can access the properties dynamically using FindControl... help. Is it possible?? since control is not a real class. If not, any solutions suggestion? Here is the code: <%@ Register TagPrefix="company" tagname="items" s...more >>

I have a class called OBJ public class OBJ : Editor { public System.Windows.Forms.Button btn; public OBJ() { btn = new System.Windows.Forms.Button(); } } The Editor class extends a Windows.Forms.Form and have a "save" button. When it is pressed i need to serialize the...more >>

using System; public class Animal { public string Sleep() { return "Animal::Sleep"; } } public class Fish : Animal { new public string Sleep() { return "Fish::Sleep"; } [STAThread] static void Main(string[] args) { Animal objFish = new Fish(); Console.WriteLine(objF...more >>

Hey, using the OpenFileDialog class is causing me errors. Conside the following code private void method1() { OpenFileDialog open = new OpenFileDialog() if(open.ShowDialog() == DialogResult.OK) { FileStream stream1 = new FileStream(pathName, etc, etc, etc) //D...more >>

Can anyonoe tell me is it possible to sort a treeview by the child nodes( *See Below ) if so can someone tell me where to look e.g TreeVIew | |_ Parent Node | |_Childe Node // Sort by this node |_ Parent Node |_Child Node // Sort by this node Regards J...more >>

I have <first-name>Benjamin</first-name> as you see it's not <first-name>"Benjamin"</first-name> how can I find out a node like first-name contains something or not ? Thanks ...more >>

Hey, using the OpenFileDialog class is causing me errors. Conside the following code private void method1() { OpenFileDialog open = new OpenFileDialog() if(open.ShowDialog() == DialogResult.OK) { FileStream stream = new FileStream(pathName, etc, etc, etc) //Do...more >>

Dear all, Any one of you have successfully use the SqlCommandBuilder? I am pissed off by it, I have tried out several tutorials but stil have got it working yet :( Any working examples would be much help to me. Thank you very very much. Cheers,...more >>

When should I use static variables and when should I use instance variables? I'm working on a class X and initially (for some reason I yet do not know), I declared some variables static but the methods weren't. So I'd initialize fill the variables statically and then I'd create an instance of X ...more >>

I was wondering, if you load an XML-file into a DataSet, how much memory will take this up, compared to the size of the XML-file on disk ? I'm curious because most of the size of a XML-file is taken up by its tags. If you compress a XML-file into a ZIP-file, it becomes about 8 ten times sm...more >>

I managed to find some old posts through Google related to this, but none that is recent. This appears to have been a mystery for some time. For the first time, I checked my ASP.NET sources into SourceSafe yesterday. Today the automatically generated code from InitializeComponent was gone fro...more >>

I'm trying to figure out if it is possible to bind multiple IPs to the same Socket listener. For example, when I bind my LAN IP to the socket, Only computers on my network are able to connect to the server. When I bind my External IP, everyone except computers on my network can connect to the ...more >>

Hi, How can I find out a node into an xml file contains text information or not ? thanks ...more >>

I have several classes as part of a Console Application that sent output to the Console. I want to use these classes as part of my Windows App and I'm looking for a way to send the Console.Out to a TextBox or something similar in my Form. I already know about Console.SetOut() but I want the ...more >>

Hi all, I am new to .NET, Any idea that I can't get the below to work? It gave me this error: <An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in system.data.dll Additional information: System error.> Any help would be greatly appreciated. Assumption: ...more >>

hello, The is no double-click event for control in c#. I would like to get different actions when click and double-click on a listbox. Have we need to oeverride WndProc and manage WM_LBUTTONDBLCLK event ? thanks cyrille ...more >>

Hi, I am using .NET provided Trace class for tracing purposes in my code: [code snippet] serverLogFile = new FileStream("C:\\Temp\\log.txt", FileMode.Append, FileAccess.Write, FileShare.ReadWrite); TextWriterTraceListener serverTraceListener = new TextWriterTraceListener(serverLogFile); ...more >>

Hi, Is possible to return ArrayList or Array from Method and how? Where I can find some example? Thanks, Mirko ...more >>

How can I avoid allowing user to type in the a ComboBox ?? I see not read-only property over there. Thank You. ...more >>

Hi, How I can create COM object with predefined credentials ? Actually I have following problem, I should create COM object from my .Net WebService, this COM object should have right to some folders, but unfortunately given COM implement apartment model and impersonation doesn't help. Ma...more >>

Hello, Is there a special message a c# tray application should handle to allow the system to shutdown/reboot properly ? Actually when my tray application is launched, the system will not reboot/shutdown until i close manually the application and try again. Any hint would be appreciate...more >>

How can I dispose of a string array? I create it with: lines = new string[3]; //the declaration's somewhere else but now I'd like to dispose of its contents so I can create it again with a new size. Thanks. ...more >>

Hi, does anybody know how to find out of dimension of a screen? let's say we have an application which should run on different PCs, laptops and ... then we have to write the application in a way to sense the dimension of the platform (or target platform) it's running or will be running on. I...more >>

Hi, does anybody know how to find out of dimension of a screen? let's say we have an application which should run on different PCs, laptops and ... then we have to write the application in a way to sense the dimension of the platform (or target platform) it's running or will be running on. I...more >>

Microsoft KB Article: http://support.microsoft.com/default.aspx?scid=kb;EN-US;323246 I took the code and copied and pasted it in the my two files. Everytime I run it, I get: Parser Error Message: Could not load type 'CSharpUpload.WebForm1'. Line 1: <%@ Page language="c#" Codebehind="Web...more >>

Hello everyone, I have an abstract class (classA) and in my abstract class I have a few protected methods. Now I have another abstract class (classB) that inherits from classA. Now both classA and classB are in the same assembly (assembly1). Now in another assembly (assembly2) I have a sealed...more >>

Does the += operator decompose to: op_Addition op_Assign I don't see a specific operator for +=, and searching Google doesn't reveal anything (probably because it is a screwy search term). ???...more >>

If I have a string of "1t2e3s4t5i6n7g8" I want to return a string of "12345678" Is there a String.Format syntax to this or can it be returned using int.parse?...more >>

Hi, I'm trying to send a POST request by using HttpWebRequest. To send the data I should get a Stream: HttpWebRequest wReq = (HttpWebRequest)WebRequest.Create(aUrl); Stream reqData = wReq.GetRequestStream(); but for writing into the Stream reqData.Write(?) the Stream expects a byte[] bu...more >>

Hi, I'm experiencing something very weird when I switch from Debug to Release and vice versa. Everything was working fine under Debug mode and then I made a Release compilation. Now if I go back to "Debug" mode will not compile showing the error message. If I switch back in "Release" mode it w...more >>

Hi IF I design a class and would like to be able to call the class distructor, how can I do it in c#? Is that the propose of the dispose? What I need to do is in my class I connect to sql server and the user can call the close method of my class which will close the connection to the server. B...more >>

Hi I wonder what classes are there if any for printing support. I would like to be able to lables, enveloped and so on. What I need to do is to design the print layout that will be printed and to have a print preview option. ...more >>

I added a mask COM control to my app and now some computers are getting a "Class not registered" COMException while others are not. I have verified that they all have the DLLs on the same directory. Any idea what could be causing this? Thanks. Here is the detailed error: See the end of t...more >>

can properties take arguments in C#? They could in VB 6.0. thanks....more >>

friends, I have a question about accessing structure members. I have a structure defined in my dll something like this. namespace myNamespace { internal struct myStruct { int myMember1; string myMember2; } } Because I have declared the struct with scope internal, I ...more >>

Hi There are so many mosts on here that searching for previous posts will be impossible. So please excuse if this questions been asked before. I'm rather new to c# development bu not windows development. I'm writing a MDI application with my main form as a MDI container. I'm opening with in ...more >>

Hi, I'm having problem to insert rows of data with number of columns from temporary datatable into SQL Database. How should I go about? Thanks, Thila ...more >>

Hello, what does the null assignment means in C#: CMyClass mc = new CMyClass(); // Do something with mc mc = null; What does the "mc = null"-line actually means: is the mc, and the memory and resources it has allocated, released? thx Kimmo Laine ...more >>

Please I need to find a good text about the benefits of .NET... Can you give some links Thanx in advantage.. ...more >>

Hi, I have a TextBox and I want that everytime it gets the focus etc,,, in the other words, everytime I "enter" to this control no matter how I want this event to be fire poping up a message "hello". I tried but it doesn't happen and the event doesn't fire at all no matter what I do with the...more >>

Hi All, I have seen something written in VB6 which will sit in the outlook as a bar inturn will sync with some server in the Internet. I want to simulate the same thing in .NET using C# any body give me a glue to start with that. Thanks Anandraj.A. ...more >>

If I add reference X (a C# dot net DLL) to my Project Y and then change the reference and rebuild (added new methods), do I need to delete the "old" reference and add it again with the recompiled dll? Or is there some way that the project can update its own references automatically? Thanks. ...more >>

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If I define a class like so: class foo { private string bar; private int x; } Is it redundant to do this in the constructor: public foo() { bar = null; x = 0; } I guess what I am asking is - Is a string initialized to null or string.Empty? Is an integer initialize to 0? ...more >>

how to set the application at the bottom right hand-side corner when I = minimize the applicaiton with C#??...more >>

Hi, Probably a silly question, but why is all Convert.ToInt(xx) methods stated as CLS non compliant. Cheers gwc ...more >>

I am using the Save(stream, imageFormat) method of the Bitmap class with ImageFormat.Bmp to save a bitmap. If I then manually load the bitmap file header and bitmap info header information I find that the biSizeImage is 0... Why doesn't the Save method set this to the proper value? Is there ...more >>

I am using an embedded resource(".aspx or .HTM") which is then extracted from the for the Assembly like I have shown below. stream = assem.GetManifestResourceStream(resourceName) This stream I want to output to the browser in a open new window call generated from the code behind. Any help...more >>

How to make my application multi language? Do I need some resource files? Any articles? ...more >>

Problem: have a search form that accepts search criteria. Queries often take extended amount of time. Want to display a Flash pluging that says "Searching", while the webapp is querying the Database. Tried hiding & displaying a panel with the flash plugin on postback...didnt work. Seems l...more >>

Does anyone know how to send an IO stream to the browser? Preferably in a new window. Thanks in Advance. ...more >>

Hi, I have several classes which need to access the same object (a dll). What is the best way of achieving this? In C++ I would just have a pointer in a library and #include that library to all my classes, but obviously cant do this in C#. I have tried making the object static inside one of...more >>

In a .Net application, given a C++ dll with methods called by a C# GUI Assume (x&y) is FALS the following code in the C++ dll, when called from the C# interface bool theMethod(unsigned int x) unsigned int y = 0x2 if (x&y) // FALSE printf("True") if (x...more >>

I need to have a tab strip but can't find code as to how todo make one using C# Thanks, Bryan G ...more >>

My site uses frames, and I need to reload specific frames individually. For example target="mainpanel" or target="_top". Response.Redirect() doesn't seem allow for named targets. Thanks, Roger ...more >>

Hi everybody, I have a database table here, containing the full paths of all subdirectories of a certain directory. example: E:\Development\VB.NET\Mobile E:\Development\VB.NET\Services\FileSystemWatcher E:\Development\C#\ E:\Development\C++\MFC-Apps How can I use this table to populate...more >>

I have a large solution with approx 20 individual projects. This compiles fine via the UI, but fails when compiling using devenv.exe via the command line - this happens with visual studio .net 2002 and 2003 on several machines. The error is: "Runtime Error R6025 - pure virtual function call" i...more >>

Hello. I'm wondering. is it possible to share code between a windows forms application and an asp.net. Specifically, I'd like to do something like: class Demo { private static ArrayList al = null; private string sType; public Demo(string sType) { this.sType = sType; ...more >>

so I've read these blog entries and such on why the not allowing non-zero based array index. turns out, you can make it work in C#. this code coming straight from the .NET SDK 1.1 under Array.CreateInstance. my question is, is this there for VB compatibility reason or something using System pu...more >>

I'm new to 3-tier architecture, and I am looking for some advice on how to implement it in C#. I am creating an app with a Presentation layer, a Domain layer, and a DataServices layer. There is also an Application Services layer that sits between the Presentation and Domain layers. This layer ...more >>

Hi people, Is there a free library / source code out there that copies properties from an object toanother object, something equivalent to Jakarta commons BeanUtils? In fact, are there code repositories out there (Open source / sourceforge) for C# or the .Net world? Thanks for your help...more >>

I posted a query about this yesterday, and got a lot of helpful and useful information back... but it still won't work. For the moment, I want to send the simplest of email messages, using the System.Web.Mail.SmtpMail class.... So, here's what't in in my little ol' console app: System.We...more >>

Hi, Can anyone give me any information about using C#/.NET to build real-time precision applications? Pros/cons etc.? Thanks...more >>

Hi, How do we add command parameters to a windows application? Thanx...more >>

Recently I was trying to figure out why a small program I had written didn't work. It was a simple problem really, normalizing the length of a couple of coordinates in a vector system and I just couldn't figure out why the coordinates refused to be changed. Suddenly it hit me what an idiot I had...more >>

Hi I am new to windows forms, and I can't figure out how to create an IP address control as part of my form, using MFC there was no problem dragging this kind of control from the tools menu, this type of control doesn't seem to exists in .NET...... How do I create an IP address control using c#??...more >>

Hi In my application i set the cursor to waitcursor but its not appearing for a time till my application process the code in the try block. i am able to click out side of my application. which i dont want...help this is my code in my application ------------------------------------- Curso...more >>

Is it possible to get a list of the local variables and their corresponding values? For example, take a look at the following IL: ..locals init ([0] int32 i, [1] string x, [2] class [mscorlib]System.Reflection.Assembly a, [3] class [mscorlib]System.Reflection...more >>

Hi In the XML comments for a property of one of my classes I'd like to be able to reference a particular constructo (actually, even the constructor summary page would be a start) of that class e.g /// <summary /// Check <see cref="MyClass.Constructor">this</see> constructor /// </summary pub...more >>

Hi Anyone knows how to change (increment) the Major, Minor or Build version of an application Wy the build version has a value of (18149) ? My code is this one Major = System.Diagnostics.FileVersionInfo.GetVersionInfo(System.Reflection.Assembly.GetExecutingAssembly.Location).FileMajorPar ...more >>

I have a textbox that is set to readonly = true I change the backcolor to color.red in the enter event. I change the backcolor back to systemcolors.control in the leave event. Textbox now has a red border until I move the mouse over it. Any ideas how to fix this would be great. Cheers JB ...more >>

Hi how can I change the icon of a custom control when viewed in the toolbox? Thanks *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

what class to do that? ...more >>