Really a theoretical question out of curiousity more than a truly practical one ... I seem to recall that casting arrays was a no-no in C++. I think it is not possible to take an array in a Tag object : // put an array in a UserControl's Tag object myUserControl.Tag ...more >>

Hi! I was testing an application that is writing a mail and sends it to a recieptiens. I then came across a couple of ??? in my head, coul anyone briefly tell me what the difference is between this and where in the help i can read more about it First out... Outlook.Application oApp = new...more >>

Hi, I'm programming an application with .net C#. The application will talk to SQL Server on same box. The box has 4 P4 CPUs running Win2k3 server. I have a question here, what kind of technique I should use to take the most advantage of the box besides multi-threading? Thanks in advance! Mar...more >>

I would like to know if there are any good, free, charting components that I might use. This will be enbedded in a web page. ...more >>

I would like to implement an MarshalByRef object similar to System.Threading.Monitor. The interface would look like class RemoteMonitor : MarshalByRef { public void Enter(object obj, Guid threadID) { ... } public void Exit(object obj, Guid threadID) { ... } } Let assume that each...more >>

Hi, I am throwing an exception derived from ApplicationException as follows catch (Exception ex) { throw new MyException("message", ex); } My exception's constructor is: public ExceptionBase(string aMessage, Exception aInnerException): base(aMessage, aInnerException) ...more >>

Hi, I have a .net dll (say dll assembly) which has a class implimenting an interface defined in a application (say application assembly) so I add the reference of the application assembly to the dll project and compile. I have a dll available. from the application assembly i create an ins...more >>

I was writing an Bluetooth Application which makes calls to Windows APIs. I feel I'm doing something wrong with the structure. Could somebody help me? The code that I'm using is pasted below: using System; using System.Runtime.InteropServices; namespace System.Net.Bluetooth { [StructL...more >>

I am trying to compile some code that takes an input value from a combo box named comRate. I am having difficulties trying to assign this value from the comRate combo box to a float data type variable named input. There needs to be some a conversion from a string to a float data type but I am not...more >>

I need to know the Exception number when an exeption arise.. but the exception number is protected ..how can i access this number when an exeption arise.. and also I don't want to inherit that exception.. ...more >>

is there any function like this? Console.Read is not good for me because I dont want to click Enter after reading an input. thanks , Okets *-----------------------* Posted at: www.GroupSrv.com *-----------------------*...more >>

I have tree variable with their values: 1) rptName="report1" 2) rptPath="c:\......" 3) serverPath=http://server... and 4)an arry which contain Name/value pairs. what is the best way of wrting them into an xml file?? these Xml files are stored in the same directory so I also give the XML f...more >>

the following code produces an error: "The left-hand side of an assignment must be a variable, property or indexer" ----------------------------------------------------------- private void ListBox_DrawItem (object sender, DrawItemEventArgs e){ ListBox b = sender as ListBox; ((IconI...more >>

Hello, I am days into this problem and I cant make heads or tails of it. Please post suggestions, I dont care how crazy they sound. Scenario: I have a TAPI C# application. (TAPI 3.0) Driver is an Alcatel TAPI Service Provider v. 5.0.46.003 with an Alcatel PBX unit. The appl...more >>

I have some code that needs to know if an int variable is one of several possible values. What is a better way of performing the test than stacking a bunch of case: in a switch statement? I also don't want to have a bunch of logical ORs in an if() statement (e.g., if (someInt == 25 || someInt ...more >>

HI there, I am developing a client side app which requires me to launch another program when a user clicks a button on a web page. I thought I'd create an asp.net page (using c# ) to accomplish this. After much research I found that it's not that simple. The asp process runs under an aspnet...more >>

This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C4CD88.605424B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Anyone used the WindowsIdentity class with success? I find if I try to = change the current identity to one t...more >>

Hi! I am a new to programmeing in .Net and C#. After some time programming in C# i want to go to the next level of programming. I want to include a database with my applications, but i am a litle confused about something. Must the client have ex: Access installed, or can i accsess the file...more >>

Thanks ...more >>

Hi I have a web method that returns a string (which has an xml format). I get a dataset and I need to convert the table in the dataset to xml and then to send it as a string to the client. How can I do this? Thanks ...more >>

How do I send an object from one computer to another? -- I am a 14 year old C# developer, I am completely self taught, so please don't get mad if I ask a stupid question. Thanks....more >>

I want to write a class that has multiple values associate to it public class Person { public string FirstName {get; set;} public string LastName {get; set;} public DateTime Date {get; set;} } For example, I want to create an object like this: Person p = new Person(); p.Fi...more >>

Hello Newsgroup, I have an enum as such, public enum VariablePositionEnum { Row = 1, Column = 2, RowAndColumn = 3, } I need (for all intensive purposes) for a control these enumeration values as strings rather than the enum value name, i.e. If I want the Row value as a...more >>

Hello, I have a .Net service registered in my machine and set Logon type as "This account" and gave my domain account name and it's password. It works fine and I am able to connect to a remote drive and to a remote database etc from the service. How ever if I use a local user (administrator...more >>

Hi, I need to give my application to diferent clients. I wanna put their names on app. I was thinking about XML data, where I can have data (as connection parameters, pic folders, client name)? Is this good?!? Can I protect that file?...more >>

Hi There, can some one please clarify the difference between SQLDataReader and IDataReader? What are the advantages and disadvantages of each? Thanks Vivek ...more >>

While writing a windows service, I've run into a fairly strange problem. I have a worker proc that gets fired every n seconds using System.Threading.Timer. This works fine, unless I open an SqlConnection on it. Just as soon as I do so, the proc fires that time, and never again. The connectio...more >>

Hi, I have generated xml documenentation using command c:\> csc /doc:test.xml test.cs but I couldnt find any "member type" info in that. for eg: I have a "uint" type variable "address" in a class called "test" in namespace "test". so the xml document says <member name="F:test.te...more >>

I have a Windows.Forms.Form containing a DataGrid where the DataSource is a DataView. Everything refreshes fine after adding, deleting or editing rows. When I close the dialog and reopen it with a new set of data, all is okay showing the new rows of data. But when I go back to the first set of d...more >>

Hi, I'm a newbie to .net. I want to do a good project using .net for my course work. this project should help me in learning basics as well as for jobs too. Please suggest me some fields where i can work and possible references to it. Any help or references will be appreciated. Thanks & R...more >>

How can I get the windows system version in my C# App? ...more >>

In C#, what is the difference between a property block that has a readonly keyword and a get block, versus a property block that has only a get block? Thanks, Jon ...more >>

Bear with me, please... :) TableA on Database1: CodCli -- Name -- Age -- SalesCod (...) (...) (...) (...) TableB on Database2: Key -- CodCli -- Date -- Value (...) (...) (...) (...) [Using Vs 2003.net Crystal Report] We need to see and print...more >>

Hi all, I'm working on a win app that uses a logon form to verify the user that logs in the program and then hides the first form and displays an MDI form where the user does his work. The app is STA. The problem is that I wan't to be able to close the app from wherever in my app (no matter ...more >>

Hello, I am writing a utility to get the performance counters from a remote machine. Currently, I am usign the System.Diagnostics.PerformanceCounter class to retrieve these counters, but they only retrieve the counters with the permissions of the owneer of my utility's process. I dont s...more >>

Hi, I know that to launch an application that is associated with a particular file I can use Process.Start(filename), but that assumes the file physically exists somewhere. My problem is I already have the contents of the file in memory (read from a DB) and it seems a bit redundant to write t...more >>

I've explained the problem in the following code snippet. I want to share single functions for use by several data types. In this function I call different functions to fill out the original object "o" that is passed in. FileGroup is a derivative of an ArrayList object. Can I fix this problem...more >>

Hi everyone! I am developing an application that runs a seperate executiblie file, calls the SetParent API so the application is contained in my application. The problem that I am having is I have to wait a certain period of time for the application to completely run/load into memory befor...more >>

Suppose I have the following enum that I need in multiple projects: enum Ratings{Poor=1,Satisfactory,Medium,Good,Excellent}; Instead of defining it in every project that needs it, I want to create it in one and have it accessible from the others. How do I do it?...more >>

All, I have created some ASP.NET/C# webpages that displays pefectly in internet explorer 6.0 but when I use Firefox 1.0 and Netscape 7.1 the page does not display correctly i.e the text and text boxes for example dont line up they are smaller in size. Does anyone now why this is happenin...more >>

Hi, I am writing some kind of a file scanner, at certain time all of the files under a certain directory will be scanned, this scan require de-compression of common files formats such as ZIP and MSI, the ZIP file format is well known so there is no problem of decompressing it manually, howe...more >>

How to programically add an ODBC source to System ODBC sources? ...more >>

Thanks ...more >>

Hello, I have an application with a main class subclassing the System.Windows.Form and i changed the Icon setting for the application to point to a different icon file. Now, when my application runs, the icon appearing in the upper left hand side of the window frame is the default one and not t...more >>

I am trying to launch an executable application from my C# application. I tried using the Process class which did start the application but it did not show the command prompt window. My code is as follows: Process p = Process.Start(@"C:\Debug\MyApp.exe"); This code replaces my C++ code which...more >>

How can I call the VB Pmt & Rate functions from C#? -- Glen Mills...more >>

how to create msmq queue at remote machine? n how to send messege to remote queue? -- deepak...more >>

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I want to build a cyber cafe - like program.I need to prevent users from launching task manager.How do i achieve this ? I also need to make the program kiosk - like (where the taskbar and start button will be unlaunchable until the program exits). Please help me if you know how to,this is ur...more >>