I=B4m trying to validate a xml file against schema... I had to migrate my code from .net 1.1(where I was using XMLValidatingReader and it was working just fine...) to .net 2.0. The XMLValidatingReader became obsolete, so I tried the XMLReader instead, but I always get only the first error... Her...more >>

Hello, I´ve a general question about the visibility and modification of an object. I will try to explain it in my code, where I have the problem: DocumentList dList = initDocuments(thesaurus); for (int i = 0; i < testRuns_; i++) { Algo algo = new Algo(dList, 1.1, anzahlCluster, t...more >>

Hi, I'm using RadioButtons in datagrid But When I select one I can't unselect it and when I select the others they cannot unselect the other instead they are selected all at once. how could I go about this to be able select one at a time. these Radio button are in one column. Thanks. ...more >>

Hi, I have a DCOM DLL with a method expecting me to send parameter as LPSTR Sub SendCommandArg1(ByVal Command As Long, ByVal Size As Long, ByVal Arg As LPSTR) Is there a way to convert c# string into LPSTR ? Regards, Hugo ...more >>

I have installed the Visual C# 2005 Code Snippets, and the snippets for file handling use StreamReader and StreamWriter, instead of System.IO.File.*. VB 2005 code snippets don't use these. Why are they suggesting the use of these classes instead of the fundamental File methods? Are they bette...more >>

hi SQL queries does not recognize *$()!.,?/\[]{};:'"&^+=<>|. if I have a variable alike this: Date = "Thursday, March 01, 2007 - 9:53 PM"; how can I inset in my database? strCommand = "INSERT INTO Profiles (Date) " + "VALUES ('" + Date + "')"; ....................more >>

Hi Folks Greetings to you all. I am dealing with a project ( windows application ) in which I have to read the REG_BINARY value from the Registry and get its string equalent ( the ASCII text value ). Can anyone please suggest me how can I achieve that in VB/C#.NET. Thanking you in advanc...more >>

I'm a beginner with C#. I've got a Forms C# application that has an AxWebBrowser component embedded. While the C# application runs, a user is filling out some text boxes in the AxWebBrowser. If they then alt- tab out and alt-tab back into the C# forms application, their blinking cursor is no lon...more >>

Please can you have a read of my latest project design. Just wondering if anyone can think of things that I have missed out. Have spent lots of man hours hacking this together. Be honest....... http://users.aber.ac.uk/jap6 -- Regards JJ (UWA)...more >>

Hi, I have several reports within my c# winform application, I need to be able to give the user the ability to make minor modifications to some of these reports prior to running them. Currently I am making use of both .rdl and ..rdlc reports within my application. the modifications that t...more >>

hi, how can I solve this problem? should I write some code or this is provided by Microsoft? string FirstName = "Monica"; string Number = "123456789"; strCommand = "INSERT INTO Profiles (FirstName, LastName) " + "VALUES (FirstName, Number)"; ....................more >>

I've setup the simplest of tests; A form with a ListBox and a Button. The ListBox is bound to a List<string>. When you click the Button, a new string is added to the list. I can't for the life of me get the ListBox to update when new items are added to it's DataSource! <code> List<strin...more >>

I'm developing a windows service that needs to listen for a particular WM_ message. Is there a way to listen for a message from .NET service application? This would seem to be a simple thing, but I haven't seen anything on it... ...more >>

I have been given the task, to take an excel document with over 50 sheets and is updated weekly, and pull from it 5 of those sheets, convert them to html so they can be viewed on our company web site. Does anyone know of a way to pull a single sheet out of a workbook, convert it to a stan...more >>

I'm trying to use System.DirectoryServices to update Active Directory from a Web Service. When I try to commit the changes, I get the following error message: "A constraint violation occurred. (Exception from HRESULT: 0x8007202F)" My code is like this: <code> *** method signature an...more >>

Hi all, In C# 2.0, if I take a set of strings and toss them into an ArrayList and then sort them it does not always work as expected. I used some garbage data (I just grabbed the using statements from the top of my own program which were out of order): using System; using System.Componen...more >>

I am writing a COM in C# using visual studio 2005 and VSTO. Inside the code I use some support classes that are generic but they are not used in the inferface of the COM. However I still get a number of warnings from the compiler like: "C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.Co...more >>

I have an access database dataset which a draggedonto a form which also put the data navigator on the form. The problem is that when I ADD a new record witht he add button, it gives me a primarykey that has already been used and deleted before in the database. Then of course when you try to sa...more >>

Hi, We have a multi-threaded app, which has a windows form front end. We think we have been pretty careful to ensure that nothing but the UI thread alters controls on the form. But we've started experiencing lock ups. Of course, there could be any one of a number of causes but we wonder if...more >>

Assume i have a db connection and a datareader for that connection. Now I perform a query that retrieves 100MB of data. I know that the data reader gets 1 row at a time. However, there is a result set out there that is 100MB is size. If I close the dataReader but keep the DB connection o...more >>

I already have the icon added as an item in the solution. I tried this: this.Icon = ((System.Drawing.Icon)(resources.GetObject(@"C:\Inetpub \wwwroot\c#NewTest\WebResponse3\WebResponse\WebResponse\wr3.ico"))); and Nothing. Any help is appreciated. Trint ...more >>

Hi all, I'm never gonna get the xml part of c#.... sigh.... My xml file is structured as so: <?xml version=.....?> <TheAs> <TheA filename="name1" enabled="true" /> <TheA filename="name2" enabled="false" /> .. .. .. </TheAs> I'm trying to update the boolean field - here's what I've...more >>

Since some controls such as the DataGridView take a long time to update themselves when performing certain tasks, I have added a StatusStrip with a ProgressBar on it. While I am updating the controls on the form, I want the ProgressBar to scroll in marquee mode. However, I cannot seem to get...more >>

I am building a message body to be sent by email, but I can't seem to get the correct syntax for 2 lines where I am defining the <form> and trying to pass parameters and where I am creating a hyperlink and again trying to pass parameters to it. I have tried escaping the "s both like this : \" a...more >>

Hi: I'm creating a simple port listener. When I call start() method it returns "AddressAlreadyInUse" error. He is my code... Int32 port = 80; IPAddress localAddr = IPAddress.Parse( "127.0.0.1" ); TcpListener server = new TcpListener(port); server = new TcpListener( localAddr, port ); s...more >>

I know this is simple problem but I am so new that there is some fundamental disconnect in my understanding of: Enumerable, Enumerator, and Generics. As a result I am having a problem debugging this error message "Error 1 'SimpleSite.Email.Model.Hosts' does not implement interface member ...more >>

I am new to serialization. Apologies, if my question sounds really basic. Stuck in this problem for the last two hours. Thought, will ask the experts instead of banging my head more. This is what I have..! <code> Abstract Class FooBase { } Abstract Class FoobaseCollection : ICollec...more >>

I am trying to put 2 controls in a page where I want the first control to have 80% of the screen and the second control 20%. How can I do that? I used control property to set the first one to Top and the second one to Bottom and is not working properly. I am loosing the first controls bottom ...more >>

Im looking for help making a good GUI out of pure images. I would like to embed the common controls and such, but I want to make a nice looking GUI, similar to that of, say Windows Media Player. I'm not sure how to make an image "clickable", nor do I know how to make rollovers and such. Also ...more >>

Hello, I updated my article on generics with databinding and serialization/ deserialization. Summary: Generics are one of the most useful improvements in the .NET 2.0 framework. In this article I start with pointing out the disadvantages of using the classical arrays and .NET collections, a...more >>

I have searched and the only stuff I can find is out of date (or I can't figure it out). I'm trying to make a browser that will accept Files or Folders as a target. First off, does this even sound logical? I'm making a sync type application and you may want to sync a single file or an entire...more >>

I have a question about declaring the Global.ascx: In VS.NET I create a Solution, and there are 4 projects under it. They are put under 4 folders, but web pages would be called across the 4 projects. For example, web page Page1 in Project1 will redirect to web page Page2 in Project2 which will...more >>

Is extentions only allowed on 'pure' methods? I was playing arround with lambda functions and while googling I tried a small example (In a static class): public static Func<double, double, double> Hypotenuse = (x,y) => Math.Sqrt(x*x + y*y); Now it would be cool if I could easily mak...more >>

I'm serializing a big class using XmlSerializer (I need xml serialization cause compact framework). I've learn that all my fields must be public. Ok. Now it is completly useless to serialize my get/set properties, but I haven't found an anttribute like [NonSerialized] working foer properties. ...more >>

Hi Friends, I have a Registration page which uses Asp.net CreateUserWizard Control. Now I want to send a unique value(a guid) by which i can be sure that the email address is of that user only. I will provide a Textbox in the next step which the user has to input so that his email address is ...more >>

I have a form with 8 checkbuttons in "button" apearence mode each button press activates a relay device on a connected piece of hardware. For the relay device to activate a specfic relay it needs to get a number of the relay to be used from the button pressed EG press button 1, activa...more >>