I cant use the NULL constant to check a pointer (eg. say Object*) whether it is valid or not - when I use C++ .NET. What comes in place of NULL in the managed extension of C++ Pls Help. Sincerely Sanjoy Sinharoy...more >>

It seems that when I am using the WebBrowser control, that it stores every site it has been to in memory so that the next time it browses to this site, it can pull everything directly out of memory "i.e. all the images and such". Is there anyway to clean out the Control so it doesnt store all t...more >>

Hi All Could anyone help me, pls? I am trying to run a .net application from my computer. This app is in another server. Everytime I try to launch the application, e.g. http://remotemachine/appname/folder/logon.aspx, this page is being redirected by an annoying application and telling ...more >>

Just like you can launch word or excel from IE, I want to develop something so I can launch my app from IE, thanks! ...more >>

Hi, I have an aspx page with a web form. I need to change the page that this form posts to depending on certain conditions. To do so, I have Javascript code on the page that looks like: function OnLoadFunc() { if(document.Form1.elements["state"].value == 'regd') { document...more >>

I seem to be having some problems with .NET running a garbage collection. I have setup an application that reads in records from a database into a dataset. The user needs to modify a group of rows in this dataset, a save routine is run when they are done with all of their modifications, a...more >>

My app has to temporarily use the clipboard - and while doing so, it would delete any existing data which the user has copied (possibly from other applications). What I want to do is temporarily store (if to file then by serializing) the clipboard data, use the clipboard, and the restore th...more >>

hello, i have to reach a web service which need a client autentication with certificate. the certificate they gave me is in pkcs#12 format .p12 file. i have istalled this cert both on local_machine and current_user and i succesfully reach the service via browser (IE 6.0). Now i have to set ...more >>

Hi. SqlDataReader and OleDbDataReader support IEnumerable interface. When I looked up IEnumerable.GetEnumerator for SqlDataReader, it says the following: This member supports the .NET framework infrastructure and is not intended to be used directly from your code. What does this mean? ...more >>

I have a dll that creates a named mutex. The mutex is successfully created when loading the dll through a console application. However the same fails when running it though a Windows service. The service is running under the local system account. Thanks....more >>

I have an application where the data access portion will return a value based on the enum type month passed to it. I was wondering if this should be done with a hash map (dictionary) or an ordinary Array with the index numbers. Answers can come be direct, or simple links to data access expla...more >>

I am having a problem with the "POS for .NET" product. Is this the right newsgroup to ask? It seems to be fine, more or less, for my display, cash drawer, and receipt printer. But when I try to Open() the magnetic stripe reader, it gives me an error "Closed". Of course it's closed, that's ...more >>

I am uploading a JPG file using FTP to a remote server and often the file is corrupted at the server end. The file size is the same, but the image often has a block of garbage embedded, or the image goes funky (please excuse the technical term) from a point to the end of a line, or to the end...more >>

Hi, I have tried several times to use the following post build command: copy "$(SolutionFolder)\EnoughPI\*.config" "$(SolutionFodler)\EnoughPI\bin" > Nul I have tried it without the null, I have tried everything I can think of. For some reason it is not able to find the copy command. I...more >>

Or do I post here? ...more >>

My application calculates data and then shows it as a Crystal Report. Since it takes a while and there are several pages in the report I would like to display a progress bar. Is there a possibility to determine when the ReportViewer is finished rendering the preview pages? Thanks, Guido...more >>

First, a little background. I'm trying to forge ahead into ASP.NET 2.0. I've dome many assemblies in C#, but I've yet to have to use ASP.NET. I'm trying to forge ahead in getting some web/server controls created so during a future conversion the work is already done for other programmers. I...more >>

I working on a web project which must verify user device identity by MAC. I know how to get local MAC but can't find any way to get remote MAC by .net framework. Why I hooked on .net is because the user device may be PC or PocketPc and I hope the method be supported on either .net framework or...more >>

My company is setting up a deployment process for implementing .NET Windows applications. One of the standards we want the process to enforce is verifying that the assembly is built in release mode. Is there a way to check an assembly to determine if it was built in release mode? The deplo...more >>

I accidentally started VS.NET 2005 installation on my primary machine and although I canceled it, every time I start my machine, the installation tries to run again. Seems to me Microsoft is saying, "your going to install VS.NET if it kills you." Anyway, how can I stop the installer from runnin...more >>

When you bind a text box to a field that contains null values the text box displays an empty string. Great! My Database field is an integer and I want an empty text box to represent a NULL value. However the EndEdit event on the datarow returns the error The input string was in an incorrect...more >>

I have created an simple visual basic windows application with the visual studio 2003. But i want to compile this with the vbc compiler (.Net framework 1.1 SP1) an not with the visual studio. Now i have the following issue: My form is using an icon, which i have defined in the properties of this...more >>

hi , The Code like this: public static Mapping Deserialize(string strXmlFilePath) { XmlSerializer s = new XmlSerializer(typeof(Mapping)); using (StreamReader sr = new StreamReader(strXmlFilePath)) { object o = s.Deserialize(sr); Mapping m = (Mapping)o; return m; } } Somet...more >>

We have some .dlls that we have written that use config files to store configuration information such as usernames and passwords. In a previous posting I asked for some suggestions for encrypting the passwords. Someone suggested DPAPI and after some research this sounded like a good idea. A...more >>

Please insert the disk: Microsoft .NET Framework 1.1 I am trying to install the dotnetfx.exe redistributable .Net Framework 1.1. During installation it always pops-up a message box prompting for CD when reaches mscoree.dll while Installing Components. This is a major problem because I have...more >>

Is there a way to change the font color in a specific row in a datagrid. I know who to identify the specific row....more >>

Is there a sendinput function in Visual Studio .net beta 2? I don't see the namespace that you must include for the sendinput function listed on msdn2.microsoft.com. David Harris...more >>

Hi, I am a big fan of coding using business objects - even though it takes a little extra time over using datasets etc. I think it's worthwhile. However, I really get stuck when attempting to implement persistence of one-to-many and many-to-many object relationships, where a single "Person"...more >>

Dear Cor Ligthert My account is not yet validated so i cannot log in to reply directly to you. An analogy of what i need is the following: Say e.g. you have a groub box "Sex" and two radio buttons "Male" and "Female". When you recall the form to edit the information of the person to chang...more >>

Hi I am working on a web project. I have a InstallerClass in my project. While making setup ( using web setup template) for this web application, I have added a userinterface with 4 textboxs, and added assembly to CustomActions-->Install In the installer class I have the following code...more >>

Hi All, I'm facing a seriuos situation with a .Net application I developed. I have developed a stand alone application in VS2003. The application doesn't contain any forms in it. I invokes the application from a .dll class library using the CREATEPROCESS function....more >>