I know and have been told that global variables are "bad". I must say that I agree but what's the alternative to this? 1. I have an application that logs into a website. The site returns me a sessionID and I must use this sessionID throughout the remainder of my application. I'm just ...more >>

Hi everyone, I am trying to learn how to use dynamic controls with/by calling a class library that contains the properties that will set them. Send/called from the main form. I am using windows forms, C#. The two codes for the two forms are as follows: >>frmMain.cs<< Calling form usin...more >>

Hi all, I have a method that accepts a string as the parameter. This can be a base64 image string, or just a normal string. Currently to test whether it's a image string or just a normal string, I used try and catch: private void MyMethod(string str){ try{ // If not exception is cought,...more >>

Hi there, I am reading in a textfile which looks like this (there is no new line after the last number) 03 98661881 0407 566453 The code to load the textfile looks like this: System.IO.Stream sio; sio = fDocument.PostedFile.InputStream; StreamReader sr = new StreamReader(sio); str...more >>

I have a class named MyMessage with 3 properties DateReceived, From, HasRead When i bind this do a datagrid for example all works well but I do not want HasRead to be bound to the grid. I can just hide it in the grid but it seems to me that there has to be some way to mark it in the MyMessag...more >>

I'm in the process of defining a very complex data model that consists of dozens & dozens of properties. To keep things better organized I've decided to embed some classes within the main class, such as this: public class MainClass { public class SubClass { . . This wor...more >>

Hello, Background: I am familiar with VB.NET, vanilla C++, and Pascal but not Csharp. Please confirm/comment: If I want to get a windows application running quickly (and minimize total effort), and have the eventual goal of porting back to MFC (that is, no .NET requirement), should I write...more >>

I have a form with several controls. I would like to paint *over* several controls (mainly GroupBoxes and Labels). But, Everywhere I try to perform painting, I end up "behind" the controls. I need a device context for the entire form, that I can render to *after* all the controls have been ...more >>

Hi, I have problem with a C# Win Forms app that uses the ErrorProvider class to provide input validation feedback to the user. On my development workstation (WinXP Pro + Visual Studio .NET 2003), when I run the app by itself or from VS in debug, everything works fine... the ErrorProvider to...more >>

Okay, so here is my EnlistmentNotification class - this is the class that implements both ISinglePhaseNotification and IEnlistmentNotification (for non distri and distributed transactions involving non durable or more than one RM). Funny thing though, while in a single RM scenario, public void...more >>

Hi there, I have an ArrayList containing approximately 20,000 database INSERT command objects. Each of these commands needs to be executed. The commands do not need to be executed in any particular order, nor do they need to be part of a transaction. I'm currently accomplishing t...more >>

I have placed text within a resouce file. The class has a reference to a Resource Manager LocRM created in the constructor. I want to reference the text within the resource file when declaring a property. See below. [Description(this.LocRM.GetText("strTestCategoryID")), Category(TestCas...more >>

The following function, SplitTheString(), splits a string based on a flag that is like this: {Flag1:whateverHere} Note that the "whateverHere" part can be any character - and at least one character. I simply want to extend this RegEx to do the same job - but to do it based on an additiona...more >>

Hi I have a simple problem hopefully. how would I replace all no numerics using <string name>.regex if if I have a string like 123456.309.123456 or 123456-307-123456 or 123456 307 123456 all need to be nomalized to 123456307123456 so if bn="123456-307-123456" bn=bn.regex([...more >>

Hi, I wrote a FTP Client library and this is how I make a socket connection. But this doesnt work for a remote ftp site. It fails at Dns.Resolve. How do I make a socket connection for a remote ftp site? private Socket ConnectSocket(string strRemoteServer, int strRemotePort) { Soc...more >>

Hi, I have a comboBox set to also be editable. If I have code that is something like: cmbBox.Text = "Hello"; MessageBox.Show(cmbBox.Text); The MessageBox will display just an empty string. I cannot figure this out. The text "Hello" will be displayed in the combobox but it doesn't seem to ...more >>

Hi, I created a DataAdapter, connection object and dataset generated from DataAdapter by dragging DataAdapter compenent to win form. Now in the code behind I want to use that DataAdapter. I go to use the dataset that was generated from DataAdapter and I get an Object ref error. So do I hav...more >>

Hello, I've got a problem with access to special ranges. I renamed some cells (for example "C4" in "CUSTOM.GENERAL.VPRIM"). This is necessary, because I have to read out only these cells in active worksheet. The method get_range("RangeName", Missing.Value) is ok as far as I have an existing...more >>

I'm building my own version of a readonly DataTable, which needs to bind to various controls. My data table class has two main collections (CollectionBase instances): one of columns, one of rows, where each row has a collection of column values. I have implemented the ITypedList interface on...more >>

When debugging a Console Application in Visual Studio 2003, how to specify the command line arguments ? static void Main(string[] args) ...more >>

Trying to get the path to My Documents and I can't seem to find the Environment.SpecialFolders enumeration. Environment.GetFolderPath is there ... is there some other assembly/DLL that I must reference?...more >>

Hi, I am trying to write some threading code to my application. The reason I've been tempted to do this is because, I am doing some FTP uploads, and sometimes during the put method, the application just hangs ("Not Responding") instead of the regular timeout and return. I am using a library ...more >>

Hi, I added a string property for my winforms control. This string property can take multiple lines of text by using "\r\n". For example, "Hello\r\nWorld" SHOULD prints: Hello World The problem is that c# _always_ treats my string as _path_ (using @-quoted). It prints: Hello\r\nWorld I...more >>

Basically just want to "open" a file the same way Windows would do it if you double-clicked on it, invoking the correct application depending on the file extension. How to do that from C# code, assuming you just have the file location and name? ...more >>

Hi, I am developing a ActiveX Control which will be used in a web page. The control will encrypt some value then decrypt it when the web page opens next time. I tested the control in a windows application and it works fine and no error jumps. However, when I tried to use it in a web page, pr...more >>

Hi, I am trying to the following: String s = "( 54.05)"; decimal d = decimal.Parse(s); when s = "( 54.05)" I what the value -54.05 and s = " 54.05" I what the value 54.05 Any suggestion. Thanks. ...more >>

I am trying to use delegates for the first time and I am probably missing something. I have a legacy DLL and I have used DllImport to get to the functions that it contains...the normal function calls work fine, but I can't get callbacks to work. The delegate declaration etc is below. publ...more >>

I'm using sockets. I need to send bytes without alternation from 0-255. When I use the standard, Byte[] bytestuff = System.Text.Encoding.ASCII.GetBytes(stuff.ToCharArray()); tSocket.Send(bytestuff,bytestuff.Length,0); It encodes most characters to ? past asci 127. I beleive that's because ...more >>

Hi guys, Just meant to say hi. I came here from Borland products which keep showing disappointing results. I bought VS 2003 and my problems were over. Just downloaded a bete version of VS 2005. The likes of something I would have payed big $$$ for within the context of my former Borland lic...more >>

Hello, Can anyone explain why this could be happening. I'm running some code that does the same thing over and over again. For example query the Sql database for employees where the name begins with say 'A'. I run this same query syncrously about 2500 times. Each time I look at the overa...more >>

Hi, If you understand the subject of my post that means you would know why i want this. Please dont give me the code for Volume number as i am talking about manufacturer serial number. I am working on C# and I know about win32_PhysicalMedia to retrieve the manufacturer serial number but that doe...more >>

1) Is there a discussion of somewhere of exactly which versions of Sql Server will work with visual Studio and C#? 2) Is it possible to use the SQL Server 2000 Desktop Engine from a different PC over a network by sharing the folder or drive? ...more >>

Hi. Is there a way to get a list of supported cultures/languages for my application. By calling CultureInfo.GetCultures( CultureTypes.AllCultures )) I get the whole list of supported cultures en .NET, I would like to get only those that are supported for my application. ...more >>

Consider a C# function that logs an error string and returns a new Exception object: System.Exception LogError(string msg) { ... return new Exception(msg); } In my program, this method is exposed to both .NET and COM clients. For C++ COM clie...more >>

i want Console write the EventLog message when the source = "Print", code as following : using System; using System.Data; using System.Diagnostics; using System.Text.RegularExpressions; public class LogTest { public static void Main(String[] args) { string machine = "."; s...more >>

I have created a very simple form with which I would like to update a single value in a single row of a database as a proof of concept. The relevant parts of the form are a DBWebTextBox (which is hooked into a column ORGANISATION.SHORT_NAME) and a Button which I am using as a submit button....more >>

Hi, This is my first time coding in C#. I am trying to implement a call to a particular function from a dll I downloaded off the internet. I have managed to do it fine in VB6. Unfortunately I'm struggling in C#. I can't make the function work. I've tried so many things, i'm completely at a...more >>

Hi all. I have been programming a simple console application, and want to delay several seconds in the application for testing purpose. I've been searching google and this newsgroup, and I found out I could do so with Thread.Sleep method. I would like to, however, avoid creating threads if po...more >>

Hello, Is there a good way to call a big time-consumming function from an ActiveX DLL (interoped) through a thread without blocking the main UI ? Here are the details : I have a class CInteropCall encapsulating a call to a visual basic ActiveX DLL function named FillAlloc_ArrayStruct_D...more >>

Hi all, I have an application, which requires several SQL activities, so I wrap them in a transaction: SqlConnection conn = new SqlConnection(connectionString); conn.Open(); SqlTransaction tran = conn.BeginTransaction(IsolationLevel.ReadUncommitted); I use MS Application Block for D...more >>

Hi all, how can I set an app's main window to visible from an other application? My problem is, that I know only the handle of the other app's main process, because the application's main window is set to hidden, so it doesn't have a mainwindowHandle, so I can't send a message to it. Any...more >>

Hi all: In the winform i want to run commandline with return value(string), then display this string in winform textbox. anyone has idea about that? Thanks Nick ...more >>

Is there any way to estimate the time required to execute a T-SQL statement? I need to set the command time out by calculating the time for T-SQL statement. Can any one give an example? ...more >>

Can I require a C#2.0Bate2 CD form MS ? It's too large to download it by ADSL in my home:P ...more >>

Hi, I know this isn't strictly C# language related, but my service IS written in c# and I checked out the list of microsoft newsgroups for win2000 and couldn't really see one that applies. I'm trying to test my service on a remote win2000 server machine, accessing the machine as user "admini...more >>

Hi to everybody, I have chnged a button text in design mode. But After compiling and executing the program the text of the button do not change to new value. Any Ideas? Thaks for helps. Arif Çimen ...more >>

Hi Gang, I've created a C# .NET component which transforms a .TIF file into a .JPEG file. I have a classic ASP website in which I wish to call this C# component from my classic ASP. Can anyone point me in the right direction as to how this may be done. I'm hungry for some guidance as I can'...more >>

I have a dictionary that I would like to load with data and then have as read only, so I can pass it as a result of a get on a property and not have the recipient of the dictionary change the data in it (and change the data for everyone else using the property). I can see from: http://msdn.m...more >>

MS API help is still geared towards C programmers only despite that fact that programmers from other languages have been using them for 10+ years now. When looking up an API it can be a real pain to find the dll that the API is in and the value of the constants. With the common API like Show...more >>

Hi when do you use destructors and what are the advantages /disadvantages? ch Jim ...more >>

This line: Line 40: ResourceReader objResReader =3D new = ResourceReader(Server.MapPath("Resources/resTitles.resx")); Error: Stream is not a valid resource file. What could it be ? =3D/ Daniel...more >>

Hi i have the following string: /BooksOnline/CadUser.aspx But i need to get just ---> CadUser.aspx How do i do ? ...more >>

Hi, I have a string for example str = "abc&de" When I try to put this string into a label, the & character disappears. How can I stop this from happening? What about for other special characters? Cheers ...more >>

Hi, I am using ASP.NET SmtpMail to send email using the following code public void SendEmail(string From, string To, string Subject, StringBuilder Message, string Attachment, string mailFormat) { MailMessage mailMessage = new MailMessage (); mailMessage.From = From; mailMessag...more >>

Hi I am in the middle of upgrading an old 16bit app written in dBase 5.7 to C# and i need to do a data conversion tool but cannot seem to be able to open the dBase tables *.dbf. any help would be appreciated. Darryn ...more >>

Looknig fro any small .cs sample showing how the System.Runtime.Remoting.Lifetime.LifetimeServices Class should be used. Thanks. ...more >>

Hi, In our application we reference com components written in c++.When errors occur the messages appear like this 'Exception from HRESULT: 0xC0068002" is there a way to convert this HResult value string (0xC0068002) and convert it into an int value thanks in advance Manoj Nair ...more >>

hi, i'm sort of a newbie in .net and i'm currently doing my major project. i would like to know if it is possible to have a datagrid that would not be having a database as its datasource? and is it possible to have an editable column in that datagrid wherein it would ask for user input? if so, ca...more >>

Greetings. I use Configuration Application Block of Enterprise Library to store some user application settings like window size, position, etc.. Is there a way to set the FileName property of default XML File Storage Provider to use ApplicationData folder of current user? This way each use...more >>

Dear Sir I know {0:c} is a format string. Where to find the articles aobut that? ...more >>

Hi all how can I update my application from internet??I'm looking for a simple way.. I approciate you if you can show me a simple code. thanks in advance ...more >>

Hi, I'm learning C#. I'm confusing about event and delegate. delegate void mydelegate(); event mydelegate d1; mydelegate d2; What are the differences between d1 and d2 variable ? Whate are the differences between event and delegate ? Thank a lot. Ly Hoang Hai ...more >>