int sqrft = 1335; decimal pricePerSqr = 18.33m; decimal pricePerYear = Math.Round(pricePerSqr * sqrft, 2, MidpointRounding.AwayFromZero); decimal pricePerMonth = Math.Round(pricePerYear / 12, 2, MidpointRounding.AwayFromZero); Con...more >>

Basically I have a listbox to which I add simple STRING items- I have a progress bar which I increment whenever I populate another portion of the complete set of items I wish to add. What I observe is that as more and more are added, population of the list box takes longer and longer. ie the firs...more >>

I have a DataTable defined in a strongly-typed DataSet: [Serializable()] public class MyDataSet: DataSet... { ... public class MyDataTable: DataTable... { ...} ... } I have a class that references MyDataTable: [Serializable()] public class MyClass { private MyDat...more >>

Hi guys I am making a custom form top border and have done it by making 3 picture boxes. One is the top border Second is acting like a button for closing the window third is acting like a minimise button. All is fine until i try and use the label button as my window caption/title. Whe...more >>

Hi there, I am trying to compile a WinForm project using csc. The compilation works fine. But when I start the project it crashes. The problem appears to be linked to resources which were created because I put some ImageLists onto Forms. I use the following directives with csc: /res:"...more >>

People, does .Net (C#) support plugable look and feels as java does? So I can easily change the look of my softwares? TIA, Scirious....more >>

People, why are C# generated binaries so much bigger than Java ones? TIA, Scirious...more >>

After running into a design wall with my traditional thread approach, I realized that a BackgroundWorker object would fit my needs pretty good. Never really used them before. In a nutshell, my problem is cancelling the worker. I've read the MSDN docs, checked google and haven't found a solut...more >>

I am a newbie user. I am trying to get source code of a webpage using WebRequest and WebResponse. I've managed to get source code but this time I got stuck on character set. I can't display non-English characters like ÞÇÜÝ and so on. Here is my code; WebRequest objReq = HttpWebRequest.Crea...more >>

I have a piece of code (written is Visual Studio 2005) that is only reading the Security EventLog. On Windows XP Professiona/Home this code works just fine. int numberOfEntries = myEventLog.Entries.Count; if (numberOfEntries > 0) ... However, when run under Windows Vista I get the error ...more >>

We have upgraded our web project to Visual Studio 2005 (from VS 2003) and are still interfacing with some legacy ASP code that we do not want to change. The problem is that the VS 2003 compiler used to serialize a DateTime as: 2006-06-07T15:00:00.0000000-04:00 Now, VS 2005 compiler is se...more >>

I need to cast a value at runtime to T from object. public class GreaterThanFilter<T> where T : IComparable { private T _value; private void SetValue() { //DataGrid.GetValue(0, 0) returns object _value = DataGrid.GetValue(0, 0) // i have tried _value = (T)DataGrid.GetValue(0,...more >>

Hi, i'm looking to find a way (using RegEx) to take the following text break it into 3 parts: <table><tr><td>#Content#</td></tr></table> which will give me an collection/list with 3 elements: <table><tr><td> #Content# </td></tr></table> please keep in mind that the html might be dife...more >>

I'm trying to figure out a way to pass this .cs file a variable from form so that I can build a custom query block. Example of what this file contains that I want to modify. this._commandCollection[0].CommandText = "SELECT * FROM * WHERE *"; this._commandCollection[0].CommandType = System.D...more >>

Hello app.Documents.Open("TEMPLATE.DOC", False, False, False, "", "", False, "", "") doesnt work on server. But it is working in my computer. What is the problem, what can i do ? ...more >>

I'm in the process of porting a bunch of code to C# which for the most part is going well, but just can't seem to get this one to work properly.. Here's the code I'm currently using: *** [StructLayout(LayoutKind.Sequential)] internal struct NETRESOURCE { public int dwScope; public ...more >>

I am serializing a class to XML using the code below, but the XmlSerializer opens the object's tag with some very verbose attributes: "<TestClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml ns:xsd="http://www.w3.org/2001/XMLSchema">" I am serializing thousands of these objects,...more >>

Hi, I have encountered the following problem. Say I have the following, DataGridView dgv; DataTable dt; OleDbDataAdapter oleDb_da; (bound to a OleDb data connection) dt is the bounded data source of dgv, and I use oleDb_da.Fill(dt) to fill the data table. If I execute dt.Rows.Rem...more >>

Hello, In a Unit test with visual studio 2005 I have this code in the test assembly: 1.System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); 2.ConnectionStringsSection csSection = config.ConnectionStrings; 3.ConnectionStringSettin...more >>

I hope the old saying, "The only dumb question is the one you did not ask." applies here. I have been "attempting" to program vb.net for years. Previously and sometimes even now I use vbscript for random projects, but I cannot say that I truly know vb.net or even vbscript. I am excelent at cod...more >>

Does anyone at Microsoft know the number of classes, namespaces and functions in .NET? Microsoft must have spent a lot of time in development. Do the same people know how many employees, departments, and time, it took for them to get here? I work for a financial firm that is going to start...more >>

I have a simple application built with several DLLs that access XML files for information. My local setup works just fine. As defined in my Install folder, the files are copied to the "application folder" and the DLLs find them just fine. However, when I publish the same application to a ...more >>

Am I reading the docs right? If i have a class that has a string field when i call MemberWiseClone() the same field in then new object will reference the string in the original object? Meaning changing one changes the other. dan...more >>

I have a prospective client who can't get my WinForms app running on his machine. I sent him some sample .Net apps and they run fine. The error coming up is very cryptic and doesn't help me resolve the problem. My "traditional" way of debugging like this would be to create a special versi...more >>

Hi I have an existing function which has a stream object (inmsg.BodyPart.Data). I'm trying to search and replace the stream object in the most efficient way possible This is my attempt below, however I'm getting a message on the last line that I can't convert a memorystream to a stream. A...more >>

I have a custom control created in C#. The control is being consumed in a COM exe written in VB 6. At runtime when a user moves the mouse over the control I want to get the parent form for the control and use it as if it were a C# form. Is that possible? If so, how? Redesigning the consumer ...more >>

This post is intended to verify that true value semantics DO NOT EXIST for the Enum class (relative to boolean operations). If this is true then (thus and therefore) you can not design state machines in C# where the machine can use the enumerated 'state' to execute (thus the term 'machine' as ...more >>

I'm trying to write a generic function (List<TPanelType> GetGenericPanels<TPanelType, TObjectType>()) that returns all UserControls that derive from T and and implement an interface IGenericPropertyPanel<V> such that U implements or derives from V. The idea being that I can discover (via reflect...more >>

I have an application that requires accessing peachtree information. is there any way to use C# to interact with peachtree?? --Roman ...more >>

Hello, My Code: dvM1.RowFilter = "DATEPART(Month, Datum) = " + Monat.Month + " AND DATEPART(Year, Datum) = " + Monat.Year; But DATEPART is not a ADO Functions? Can someone help me? ...more >>

Hi, I'm try to find an easy efficient way to generate my web pages dynamically from an xml/text file. What exactly I want? I want that whenever a pages is loaded it will go and read an xml/text file which will include the style of the page (tables,div, web controls, etc) and will bui...more >>

I have made a DLL using C# and .NET 2.0. My customers develop an app using C# and .NET 1.1 and wants to use my DLL. How can we do this ?...more >>

Hi, i use VS 2005 and i've Form that have a NotifyIcon on it, when i minimized the Form it minimized to the Sys Tray ok, i need that when i minimized the Form it will throw a Ballon popup from the Sys Tray that will say "i'm here" : - } how i do it? Thanks...more >>

I have two object that has been acquired using reflection as follow: string str = "123"; object param1 = dataRow["myRow"]; System.Type paramType = param1.GetType(); System.Reflection.MethodInfo Parse = paramType.GetMethod("Parse", new Type[] {typeof(String)}); object param2 = Parse.Invoke(p...more >>

hey guys heres my question. I was told by a little birdie that .net 2.0 has the ability to read a connection string directly from a registry key. so in the registry key a string value of say : database=northwind;user=username;password=pw; is stored at software/myApp/connSTR in the registry, i...more >>

Hi, I am using C#.NET2.0, My Outlook Inbox is having some mails. My system Configured with Outlook, I need to capture the Unread mail subject line. How to capture the subject line from the unread mail. Thank in advance for giving great inputs Thanks & regards Kondapanaidu ...more >>

I'm a C++ programmer of many years, trying to get my feet wet in C#. I have a question about conditional compilation. In C++, I would sometimes define a constant in an include file, and then have blocks of code in different source files that were conditionally compiled based on that constant....more >>

Hi all, I'm developping a project which you can see a video stream in a panel (like webcam). I am using DirectShowNet library to see the render, and it works correctly. But i need to compress the video stream in live with a codec (codec developped in C). Problem is that i don't know how to re...more >>

I want to run a service at the background but also provide some user interface for editing some configuration options. In this regard, my questions are: 1. Can a Windows Service have a UI along with it? 2. Can I associate a NotifyIcon (systray icon) with a Web service? 3. Can a Windows servic...more >>

Hello; I have an XML file with data which I show in DataList sucessfully, using DataSet Problem is that XML has about 30 records which is too much I need to show just first 10 ordered by date (10 newest) I don't know how to do this. Any help is highly appreciated Thanks ...more >>

Hi All I am looking to utilise the validation controls to validate a date of birth, however, I would like to take it one step further than just making sure that the user has entered a date. I have three text boxes for each part of the date (DD, MM, YYYY) and firstly I would like to make sur...more >>

Hi all I have a datagridview which is bound to a dataset. The datagridview is filled at run-time. How can set the column-width for each column. I have tried : DataGridViewColumn column = dataGridView1.Columns[0]; column.Width = 60; This works fine if a create a datagrid and the col...more >>

Hi all, I'm working in a application to work in the PC without using a mouse. I've been using the "User32.Dll" to set the cursor position but I don't know how to click or double click in any place on my PC without the mouse (in a shortcut placed in the desktop for example). Is there any way t...more >>

If one clicks useraccount via start/settings/control panel one finds the (created) users of a given computer under the reiter Username, their domains under the reiter Domain and their groups under Group. How can I extract or read out these usernames, their domains and the groups they belong to...more >>

Hi, i've this code that minimize application to sys tray i managed to hide the application to the sys tray but i don't know how to bring it up back by double cliking the sys tray icon this is the code for the hide private void SysTrayIcon_MouseDoubleClick(object sender, MouseE...more >>

Hi All, I am developing a Window based application using .NET 2.0. In the application i want to have the support for Multi-monitor mode. For that, i would like to know if there is any in - build support for creating such application. Thanks Vikash ...more >>

I have created an object: A. (a control derived from another control) Using the designer, I made 'A' a field of another object: B. I then set the Modifier property of 'A' to "Protected" while designing 'B'. When I compile the code the following error occurs: "Inconsistent accessibility: fi...more >>

Hi, if I have a generic class such as: public class MyGroup<T> : Collection<MyChildClass> and from one of it's methods I want to pass a reference to myself to the following method in another class: public void OnValidateChanged(MyGroup<MyChildClass> group) I am trying: _myReferenceToT...more >>

I'm trying to do things properly and use OleDbCommand objects and parameters to build me SQL queries. In the past, I've always built them as strings... I'm now stuck. I have an SQL statement of the form: Select <field names> FROM <table name> WHERE field_1 IN ( values list ) How do I s...more >>

I'm writing an app on the PDA using C# with .net 1.1. It is all working well except in some cases a try catch is simply ignored and a totally different error is returned. I've got code like below to execute a command. I'm simulating loss of connection by stopping sqlserver during a transaction...more >>

Hi guys I must be missing something fundamental here in my animation prog. I have a class called Object Manager and in that it holds a List<> of SceneObjects, on every frame on my animation i update my GameTime which is a TimeSpan. So inside the object manager i do: public void GameTime...more >>

I have a situation where I need to control the creation of a class. I need to be able to create it externally but only by classes that I define. To accomplish this I thought of the following process: Define a delegate that returns an instance of my class. Pass this an instance of this delegate...more >>

Good morning everybody, I have been dealing with this strange issue for almost two days: I got stuck and I can't get out of it. I built up for the first time in my life (I'm quite new in stuff like .NET, C#, Visual Studio, windows programming and so on...) a Windows Service. Debugging it in...more >>

Hi, I have a source file which is shared by two projects. It is included in one project, and linked to from another. In the source I have #if compiler directives, as I want to exclude parts from one of the projects. The problem I have is that the project that is linking to the file does...more >>

hi, I have already tried this URL's code "http://www.java2s.com/Code/CSharp/Network/SimpleSNMP.htm" but I am getting error when i am creating a UDP type Socket and recieving packet from this socket. some time error is---"An existing connection was forcibly closed by the remote host" and ...more >>