I am trying to create a stream that writes text to a file and: - automatically creates a new file once the current file exceeds a certain size - makes it possible to be used by multiple threads and/or processes so that multiple threads/processes can write to the same file (all threads use the...more >>

1. When and why a string defined with or without "@" in front of it? string sSample = "xxxx"; string sSample = @"xxxx"; 2. Any difference between the following two? string sSample = ""; string sSample = string.Empty; 3. Given an Interface IMyInterf and it derived class MyCls. IMyInterf ...more >>

Is there a way to run a program from my application and close down my application before the program ends/is closed?...more >>

Hi, I'm using an array list as the collection for my indexer (_alPeople). When i try to set _alpeople to a value at a certain index, I get an error. I can't simply add the value as it needs to be at an index set by the user. the Set statement is this: _people[index] = value; or even _peop...more >>

I have been porting some C++ code to .net. I know C# doesn't have unions but in order to write a particular algorythm efficiently i have a need to address memory in in 2 different ways. As individual elements and also as an array. I have tried the following (along with several variations) and ...more >>

Hi, I'm trying to do get my head around some, probably basic, math calculations. I checked some .net math libs, but the only thing I learn from studying those is humility ;-). Anyway, i have an array of points on a basic 2 dimensional axis. They are all points of a sine shaped line. (not...more >>

I'm not sure if I'm going about this the right way - it may be that Generics might be able to help me out here... but here goes: I have three classes as follows class BaseEdit class WidgetEdit: BaseEdit class FooEdit: BaseEdit These are all acutally Windows Forms and BaseEdit is ...more >>

Hi all, I have a custom colllelctoin class which inherits collecton base. It is a collecton of objects of type X and X has ID integer as like a unique key. How do i check if the object already exists in the collection?. I think i am missing something straightfoward. Thanks for y...more >>

Hello. I am developing an application that uses Panels to guide the user through a form they must fill out. Each Panel contains different controls, such as Text Boxes and Drop Down Lists. When the user clicks the Next button, it sets all Panel.Visible to False and sets only the current Panel ...more >>

Hi, i would like to get some view points on the use of properties within classes. My belief is that properties should generally be used to return values of private members. They should not do anything that is likely to return an error and they should not instantiate or return any big objects ...more >>

I am familiar with using events and delegates in an application. I am working on a new project in work where I have two applications that are running on the same box and I need to send a little bit of data from one of them to the other. I was thinking about using events to do this. I would actua...more >>

in UDP broadcasting, how do i know from which client was the message sent to the server? is there a way to know this without having to place the IP of the sender in the message itself? Thank you so much in advance!...more >>

Does anyone have a link to Visual Studio 2005 directcx 2d sprite manipulation or just simple graphics with directx 2d. Jack -------------------------------------------------------------------------------- Jeg beskyttes af den gratis SPAMfighter til privatbrugere. Den har indtil videre spar...more >>

Hi, I m new for c # pls help how to install c# in my machine Rgds, Ganga ...more >>

Hi I've a GSM modem to put a SIM Card and communicate to any cell phone. But I don't found any library for send and receive SMS or MMS thats works in .NET. I've try with Mercury, but don't works ok. Someone knows some library to send and recieved sms/mms? Thanks! ...more >>

Is there a DBM equivalent in .net? I want to store serialized C# objects in a file store using a GUID key in a random access fashion. Pretty much a dictionary<> that is disk based. Thanks...more >>

Hi All, I am trying to read the contents of a page through its URL. My code snippet is as follows: public void mtdGetPageDataHWR() { HttpWebRequest objRequ = (HttpWebRequest)WebRequest.Create("http://www.microsoft.com"); HttpWebResponse objResp = (HttpWebResponse)objRequ.GetResponse(); ...more >>

How can I locate the SID of the host machine? I've looked online, and there are plenty of examples on retrieving the current user's SID, but not the machine. Cheers, Jon ...more >>

I'm way out of my league here but I'm having problems sending e-mails programmatically. I have a web app that will allow users to have e-mail sent to them (forgotten password/resetting password, ...) When I send it to the same domain as our company, it works fine. When it's outside the company...more >>

I'm currently converting an existing application from .NET 1.1 to 2.0. I'm down to the point where I'm only having one issue, but I'm not sure why. I have the line: ConfigurationSettings.GetConfig("WinAppConfig") Where ConfigurationSettings.GetConfig has been depreciated in favor of:...more >>

Hello, I´m relatively new in programming with C#. I want to design a class with can only be used in the same namespace. So I declared this class as protected, but the compiler gives me the following error: Error 1 Namespace elements cannot be explicitly declared as private, protecte...more >>

hello, because msdn is so poor... somebody did he write a similar script ? (DTE/DTE2) _applicationObject.Documents.Open(docPath, "?string kind?", false); i must type the "string kind"... but with what ? thank... steph ...more >>

I just created a Windows Service. But now, how do I install it so that it shows up in my list of services? Thanks, Ron ...more >>

java applet to dotnet ? ...more >>

Hey Guys&Gals my combo box is never empty it always have the text from the first member of the table... Plz help my code: this.cbo.DataSource = SearchData.Tables["Name"]; this.cbo.ValueMember = "ID"; this.cbo.DisplayMember = "Name"; this.cbo.SelectedIndex = -1; this.cb...more >>

I use the paint event to call an external object that will write text and or drawings to the form - (to make it persistant) If i have the form property DoubleBuffered set to true the text will only occassionaly display on the form. However when I set the doublebuffered property...more >>

Hi all, I am having some trouble integrating a C++ native DLL into a C# App. I am using SWIG to generate the C# wrapper for my DLL. My problem is that for debugging reasons I have a different DLL for the debug and release modes. This is reflected into the creation of SWIG wrapper...more >>

Hi Everyone, I've done several C# console applications now, and feel comfortable with the language. Can anyone recommend a web site, book, etc which has information on starting to develop full GUI applications? Many Thanks, Lint...more >>

I need to move specific records from one server to another as part of a customer upgrade process. What's the easiest way to do this? I could use a DataTable to get the data and then write out a text insert statement but that seems pretty cumbersome. Is there some way I could read in the data...more >>

Hello, I used VS 2005 to create a console application. Got the application working just fine. I then decided I would create a folder for each of my "console" applications within that project. I created a new folder and placed the working application under tht folder (This included the .conf...more >>

Is there a way to get a controls location in screen coordinates? (not relative to the container it is in)? Thanks, Jon ...more >>

What is the class name for open/write/read a text file? I can't find it in the reference book. Thanks! WJ ...more >>

How can I compile my VS2005 c# code to not be dependent on CLR to run? I want people that install my software to be able to run it without having to bother with CLR's and "Windows installers". I would like to generate a binary for lets say Windows XP. How do I do this? ...more >>

I have a collection that I add my objects to. When I go to remove an object from the collect I get an error {"Cannot remove the specified item because it was not found in the specified Collection."} Now I do understand what it is saying but I know the object is in the collection. Here i...more >>

Hello all, I'm experiencing some, imo, strange behavior with the StreamReader object I am using in the code below. Summary is that I am downloading a file from a website and saving it to disk for further parsing. I know, I could use the WebClient and it would be easier, but I don't have the...more >>

i need to play (in a windows app) all or part of wav/mp3/midi files thru software without a user interface. i also need to allow the user to choose the midi instrument to play the midi files by filling a list box with available instruments. i would prefer not to have to install a windows me...more >>

Can someone explain to me what the difference is between big indian, and little indian? I see people talk about the need to convert between the two... What are they? ...more >>

I thought I had it figured out but I'm still getting errors :( I would appreciate any help I could get. I have two forms: Form1 and frmVerify. Once the info gets submitted on Form1 its text fields are transfered to some label fields to frmVerify. Sounds easy but I keep getting "System.Windows....more >>

Hi All, I am trying to do a Page.Server.Transfer on a web control and am getting this error, "Error executing child request for SecureRegistration.aspx." Any suggestions. Thanks in Advance ...more >>

I am designing an inherited control. Besides the OnCreateControl , what other events can be listened to that the if(!DesignMode) test willl work? The reason I am asking is that a customer has asked to hide the control. However, setting the controls visible property to false means that the OnCrea...more >>

I have several comboboxes on a form that are bound to the same dataset. I want to simulate the Access Lookup Table in these comboboxes. That is, I can select a value loaded in the combobox without changing the selected value in another combobox that is bound to the same data. I have been readi...more >>

I have the following code using System; using System.Windows.Forms; using System.Drawing; using System.Collections; namespace FINN { public class flickerFreePictureBox : PictureBox { public ArrayList Lines = new ArrayList(); public flickerFreePictureBox() ...more >>

[sorry for 'crossposting', but m.p.d.f.w.controls has very low activity] Hi, the company I'm working has got a styleguide, which we use for web-projects. The guide should also be applicable for Windows applications. Basicly it tells you the color, font, margins etc for various controls. Wh...more >>

Hello, I need to write a function to calculate the average value from a coupe of parameters from database. Question 1 (value) (people that answer the specific value) [1] 5 [2] 21 [3] 67 [4] 233 [5] 348 Any ideas would be very w...more >>

hi, i'm expecting to know how to register a service manually? something like writting the registry? Thanks in advance -Zhilin...more >>

hi, i'm wondering how to reader or write registry of a remote host. are there any classes help? Thanks in advance -Zhilin...more >>

I am trying to find the best way to save data between application sessions. I have an options form that can be used to configure an application. This information needs to be stored so that it can be loaded up when the application next starts. In terms of persistency I have confusion around the...more >>

hi, i want to code to register a custmer service on a remote machine and i've tried class System.ServiceProcess.ServiceInstaller, but i can't do the job. Is there any other ways? Thanks in advance -Zhilin...more >>

It must be simple, but I don't find how I can read a XmlFile in an ArrayList. Sample of my XmlFile: <?xml version="1.0" encoding="utf-8" ?> <Relations> <Person> <FirstName>John</FirstName> <LastName>Smith</LastName> </Person> <Person> <FirstName>Peter</FirstName> ...more >>

please help me,I've searched for the solution for two days,but i can't find the perfect solution. ...more >>

I can only using system.web; but not using system.web.mail; I want to sendan email I am using C#exp Thanks...more >>

Is there any way how to get the item which has the most similar key in key-value collection object such as Dictionary<> or SortedDictionary<> although there is no matching key? If there is none, is there any substitution class for enabling this? Please reply. Thanks in advance. Hyun-jik ...more >>

Hi, FrameWork 2.0 Quick and dirty job so I thought I would do it all on the UI as quick and easy as possible. I got the datagridview to display my Access databaseview by using the Datasources and dragging the exposed view onto the datagrid as per the help instructions I can't get edits to go ...more >>

I use plugin controls in my application,but i find i can't free the memory the assembly held. please help me. ...more >>

I can use my pc to access any web page, but can't access web service. Can it due to firewall? Which setting can block web servcie but not web page? ...more >>