Hello, I'm interested in taking the following exam for an upcoming job. Exam 70-315: Developing and Implementing Web Applications with Microsoft Visual C#=E2=84=A2 .NET and Microsoft Visual Studio .NET. Since the job is being offered soon I need to know the "quickest" and "best" way to pr...more >>

Hi All I need to update some data on a web page through the httpwebrequest. For which i am writing the code below . Kindly tell me where the flaw is as it is not updating the values. Thanks and regards Shantanu WebNetCred = new System.Net.NetworkCredential("test","test123"); System....more >>

I've spent hours tonight trying to figure out how I can get my WCF DataContract to serialize properly and I'm going nuts. The DataContractSerializer, at this point, seems to me to be very restrictive with regards to the final xml format. For example, from what I can see, it only serializes XML...more >>

I've to pass one xml node at a time to a Web Service. The Web Service will create an xml document and then will validate it against a schema with qualified names. What is the right parameter type I have to use: XmlNode, XmlElement or what? Thanks, Luigi. ...more >>

I have this code: private void btnConvert_Click(object sender, EventArgs e) { // Get a directory string path = @"c:\WAMP\"; foreach (string fileName in Directory.GetFiles(path, "*.xml")) { XmlDocument xdoc = new Xm...more >>

Hi, I want to write a method to read the first column from a textfile and output them in 2 arrays to the main program. I don't know the length of the column beforehand. I use out to avoid needing to assign the array a value, but still, I get the following complaint: Use of unassigned out p...more >>

Helo everyone, I'm doing a software that is installed on my clients, to transfer files via WebService... I need to do something that should update this software....when a update the code, some bug fixes i wish to update all my clients... Anyone have some articles about it?? some tips for ...more >>

Anyone do any tests on it? I would assume it has improved since C's rand(), but who knows. For some reason, and it could just be coincidence, I seem to see patterns. But even a crappy rand() function should be good enough to avoid that, so i may be seeing things. Zytan ...more >>

We have a project in .NET 1.1 , some of the .NET methods take COM interface reference pointer as a parameter, somehow we have to call Marshal.ReleaseComObject to release the COM Object, otherwise the COM object will never get release, Even we call gc.Collect() But the same code compiles in .NE...more >>

I am embedding an xml file in my class library assembly. In solution explorer I right click a folder, add , new item, xml file. then on the xml file I right click, properties, build action = embedded resource. build the class library, run the following code to access the XML as a stream: ...more >>

Dear friends, I would like to know what you are using to generate reports on your WinForms and Asp.net (web) applications. Crystal? Microsoft Reporting? 3rd party? I am still lost on this part and I would like to have a better idea to choose in which technology I will spend time studying. ...more >>

I ran in Mono a program developed on .NET Framework 2.0 and it ran OK until I tried to desirialize a object. There the program died abruptly dumping this: System.ArgumentOutOfRangeException: Value -8590321990885400808 is outside the valid range [0,3155378975999999999]. Parameter name: tick...more >>

Hi, I am a Delphi programmer and in Delphi the rows order of datagrid is given by the sql query result, so, if I "order by" columns 1 and 2, the results will appear ordered on the datagrid. I am learning C# and I am trying to implement the Microsoft's suggested 5 layers design. This mean...more >>

Hello group, I"m new to COM Interop and Add-Ins. Today I was reading an article that says: "Use Visual Studio Tools for the Microsoft Office System to create a new Excel Workbook project in Visual Basic .NET or Microsoft Visual C#". I"m using Visual Studio 2002 and I don't see any proje...more >>

How can I have access to the items collection of a listview control on my form from a background thread? I know I need delegates to update the listview control and I have those calls in the foreach loop, but I'm not sure how to access the items collection. foreach (ListViewItem li in thi...more >>

When processing the OnGotFocus event, I need to know the window/control that lost the focus. Is there a way to determint this? With MFC, you could use OnSetFocus which passed you the window that lost the focus. It there something similar with a c# control....more >>

C# newbie here, Launching VS, my start page assumes I'm using VB. Likewise when I start a new project. How do I change default language to C#? TIA, Mark Hammer Lake Oswego, Oregon, U.S. ...more >>

If I have an XSD, and I have to create an XmlDocument from scratch; do I have to create the XmlDocument and then validate it using the xsd; or is there a better way to create an XmlDocument to make sure that's it's correct? in other words: how do I have to create an XmlDocument if I have the ...more >>

Is there an app.config setting I can add or a System.Diagnostic.Process property I can tweak to cause someone else's CLR 2.0 console app to not show a base CLR dialog box offering to debug the app when an unhandled exception is reached? On production systems, I still get a dialog box with Debu...more >>

I'm using this column type binded to a datasource column. I would like to use a string collection in another column of the same data source. is this possible? is there like a ...databinding.add("items"... i could use for this. please & thanks. ...more >>

I don't want to use IIS, (design specifiaction) data security isnt an issue, I just want to make a custom authorization and authentication system for my remoting server... how would i do this? set up a custom channel sink pair? any examples of something like this? I just need basic username an...more >>

I want to convert rfc822 (.eml) files to MAPI (.msg) files. I do not need to log in to Outlook to retrieve the messages, since the messages have all been downloaded from the exchange server and are sitting in a folder. I also do not need to save the converted file (.msg) to outlook. I merel...more >>

Are user-defined conversions chosen at compile time, or are there ways to make sure that they are chosen at run-time, based on the actual type of the object? Here is a simplified example of what I'm trying to accomplish: I have a method that has a parameter of type object. If the paramete...more >>

I have a situation where I am working with a user class and I need to reference the form. Is it best to pass the form object to the constructor of the class on instantiation, or to access it another way? Thanks, Ron ...more >>

Hi, i'm new in this list so I don't know if anyone has asked this...but... I have a process (dos app instance) started like this: _procStartInfo =3D new ProcessStartInfo(); _procStartInfo.FileName =3D appPath; _procStartInfo.RedirectStandardInput =3D redirectStandardInput; _procStartInfo.R...more >>

I'm converting a project from C++ to C#. I need a structure with several members that will be read from a file as a single block of data. But when I try the following, I get an error for the data declaration that says "Array size cannot be specified in variable declaration". struct BLOCK_BU...more >>

To make it easier for translators to convert my program to their local language, I'm using XML files as translation dictionaries since its much easier for deployment and production purposes. This is a sample XML File: <translation> <language key="en_US" rtl="false"> <form1> <button1...more >>

I am an experienced vb.net programmer looking to learn C#. Is there a good book or tutorial designed for those of us in mind? ...more >>

Hi, Is it possible to set up C# compiler so that I would get a warning when I miss any exception thrown by a framework? Something like in Java, where the compiler forces you to handle all exceptions. Thanks, Lubomir...more >>

Hi all ! Considering the code below, is it possible to declare this array static and readonly/const in order to force .NET to allocate this array only once instead of at each method call. Thank you for your help ! public static int NbBitsOnOpt(int n) { byte[] PreComputedNbBitsOn = new...more >>

You can you program against generic interfaces generically? For example, how can I make the following code which works for the non-generic interface also work for the generic counterparts? public bool Equivalent(ArrayList x, ArrayList y) { if (x[0] is IComparable) { x.Sort(); ...more >>

I know there's a DataGridView, but I think that's for synching the GUI to data in a SQL database. Is there anything simple like a slightly more complicated list box? Even if I could use a listbox of strings which align the text into multiple columns with tabs I would be happy. Zytan ...more >>

I'm working on a "pok=E9dex" for people who play Pok=E9mon. I need to have a list of all the pok=E9mon, along with a set of radiobuttons for each. I've initially tried a ListView control, with the details view, but if it's possible to add a radio button I can't figure out how. I know that I'...more >>

If you have a disabled button in a form (or tabpage) whose background color is customized, the text on the disabled button will not be gray. In fact, it becomes a *brighter* version of the backgrond color of the button's owner, making it glow, destroying the apperance that it is disabled. Is...more >>

Following is a method of the Control class defined in System.Windows.Forms protected virtual void OnPaint(PaintEventArgs e) { if (this.CanRaiseEvents) { PaintEventHandler handler = (PaintEventHandler) base.Events[EventPaint]; if (handler != null) { ...more >>

Hi, I am a fairly seasoned developer and have recently started looking at software design patterns. I am starting with the Abstract Factory Pattern and was wondering if someone could help me understand where I might use this Pattern. I get the general concept but I am having a hard time c...more >>

You can download them here: http://msdn2.microsoft.com/en-us/vstudio/aa718338.aspx This snippet seems wrong: Visual C# 2005 Code Snippets -> filesystem -> Search a Directory for Files Recursively I don't believe DirSearch will return any results for files in the root directory originally p...more >>

Hi, i would like to remove a number of characters from my string (\t \r \n which are throughout the string), i know regex can do this but i have no idea how. Any pointers much appreciated. Chris ...more >>

Back in the dim mists of antiquity I used to program in VBA for Microsoft Access (hey, don't knock it - very useful tool for the right application). This had a really handy control in the toolbox called an Option Group. It could contain any number of radio buttons (which Access called Option...more >>

Hi, I am writing a small utility to perform system maintainence tasks on Windows. In this, I am launching a MMC snapin as a process using BackGroundWorker and using the "RunWorkerCompleted" event handler to know when the snapin was closed. This works fine on Xp and Vista 32 bit and the RunWor...more >>

Hi I'm currently working with vbscripting through MSScriptControl. We have shared some of our objects that should be available for scripting. Some of the functions of these objects will return an interface to a class that must be cast to the appropriate higher level class to use all func...more >>

I have a simple worker thread that does "BeginInvoke(UpdateUI)". In UpdateUI I have "panel.Refresh ()" which the debugger shows is executed. Yet a breakpoint in the panel's Paint handler never gets called. And the panel is never painted. Can someone clue me in why Refresh does not cause a Paint?...more >>

Hi, Still new to csharp. I am coming from a C++ background. In C++ I would create a few top level variables in the application class. These are effectively global variables which can be accessed throughout the application because the application object is known. What is the csharp equivalen...more >>

Hello All I had used "WebRequestMethods.Ftp.ListDirectory" but it returns a string contains html format I thought it returns a string that contains files names how we can resolve that?...more >>

I'm writing a small program in C# that will sit in the system tray and "monitor" Windows Media Player. I want the program to grab the file name (and checksum) of whatever video a user is playing in Media Player. I've looked at the WMP SDK, but haven't really found something that can be used (i c...more >>

Hi all, New to C# and VS 5 and .NET. I have attempted to write a service via various examples and after several failed attempts to write an installer via the VS 5 wizards,etc I tried to install the service manually using Installutil.exe utility. Unfortunately I am getting an error very earl...more >>

I'm using the VScrollBar and set it as follow: m_vScrollBar.Minimum = -19602; m_vScrollBar.Maximum = 0; m_vScrollBar.SmallChange = 1; m_vScrollBar.LargeChange = 1089; m_vScrollBar.Value = m_vScrollBar.Maximum; The scroll bar is set to start from the bottom. It works fine but with one pr...more >>

I'm developing a small app and need a database for storing data on the fly. I've looked a little into SQL Server 2005 Express Edition and it seems to be working fine. I've added it to the prerequisites and performed a publish. However, when I try to deploy it to a XP/Vista system I get all kin...more >>

Hi, I got a webservie that supply users with binary files based on a parameter id. The method is void and I stream the file by: HttpContext.Current.Response.ContentType = "application/xxx"; HttpContext.Current.Response.BinaryWrite(arrResult); HttpContext.Current.Response.Flush(); HttpCont...more >>

Hi im sending this string to a device String cmd = ""N1\x0D") this device needs the esc \x0D on the end where you see it After i have sent this string i want to print it our to a rich textbox, but the \x0D keeps performaing the CR I dont want the CR to occur, i want the string to print...more >>

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C# Language Specification 1.2 says: <<Exceptions that occur during destructor execution are worth special mention. If an exception occurs during destructor execution, and that exception is not caught, then the execution of that destructor is terminated and the destructor of the base class (...more >>