Hi, I have a whole bunch of integer constants that are best given in octal (PDP-1 opcodes). It makes a huge difference in readability and authenticity if these can be entered in octal. I haven't found a way to do this. Is there one? Thanks, Gary ...more >>

please bear with me, I already tried the built-in help, Google but not finding the solution. I want to use generic KeyedCollection first crack private class RegexHolder { String Name; bool Tested; RegexOptions regexOption; St...more >>

I've 5 projects and in 2 of them I have added some dll I need to copy to the handheld (add existing item). When I build and deploy the solution these files are not copied to the device: is there a workaround? Thanks, Luigi. ...more >>

Newbie question: I've been looking for a utility that lists ALL open files and can't find one so I'd like to write one in .NET. How can I check for FileLocks as they happen? For instance, if I open a PDF file in Acrobat, the name of the PDF would be listed in my GUI. Is there functionality f...more >>

Hello, I am building a network application that make use of .Net Sockets, I created a class that works like a server and fires an event when anything arrives at the server, however I ran into some problems because of the WPF threading model, my code is like: //***************************...more >>

From a CSharp program I would like to connect to an OracleDatabase with thefollowing code: using Oracle.DataAccess.Client; using Oracle.DataAccess.Types; .... string connectionstring = "User Id=peterm;Password=mypasswd;Data Source=XE;"; OracleConnection connection = new OracleConnection(co...more >>

From a CSharp program I would like to connect to an OracleDatabase with thefollowing code: using Oracle.DataAccess.Client; using Oracle.DataAccess.Types; .... string connectionstring = "User Id=peterm;Password=mypasswd;Data Source=XE;"; OracleConnection connection = new OracleConnection(co...more >>

Does anybody know what the names of the component volumes are in "MCAD/ MCSD Self-Paced Training Kit: Microsoft® .NET Core Requirements, Exams 70-305/70-315, 70-306/70-316, 70-310/70-320, and 70-300"? Is "MCAD/MCSD Self-Paced Training Kit: Developing Windows®-Based Applications with Micros...more >>

Hello, I have a COM+ application built using C# and the MSI for it runs just dandy, its basically a COM proxy for .NET to ASP. However, when running a test VBScript, I get the following message whenever I attempt to execute one of the methods (object seems to get created though).. on this...more >>

In Linq, you can apparently get a meaningful body from and expression's .ToString(); random question - does anybody know if linq also includes a parser? It just seemed it might be a handy way to write a safe but easy implementation (i.e. no codedom) for an IBindingListView.Filter (by compiling t...more >>

When I change the source code and save it I have currently always to press explicitely F6 zu "compile" the code (and get new error list). Isn't there an automatic build function which is called whenever I save new code ? BTW: What is the difference between the two menues: Build->Build solu...more >>

In order to retrieve a NUMBER value out of a column from an Oracle Table iinto a local variable there are two functions: Decimal var = reader.GetDecimal(1); or Decimal var = reader.GetOracleDecimal(1); What are the differences ? I am using the standard (non optimized) Oracle.DatAcces...more >>

Is lint stable enough for production? what is memory consumption like? I am using 988M out of 3876M when I run vs cs with dotnet 2 along with a VPC VM. actually I only have GAB of real RAM ...more >>

I have worked on webservices as i can code them...? But what is the underlying concept behind it? How does it work? Somebdy told me that webservices do not have security? Why is that so ? Its related to SOAP, xml or something? can somebody plz explain it so i can remember the mechanism i...more >>

Can anyone explain briefly what is the difference between inheritance and polymorphism? i read and seem to forget it again and again... Can anyone along with good examples of c# explain the fundanmental concept so i can remember it forever as it is a common interview question.... Tha...more >>

Still working on my XML DataSet... Having moved on past difficult and complex problems, resolved with the assistance of everyone here, I find myself facing yet another problem. My XML document breaks the schema. There are missing tags everywhere, on purpose I'm told, because we don't need t...more >>

I checked definition of class CollectionBase public abstract class CollectionBase : IList, ICollection, IEnumerable, it implements 3 interface IList, ICollection and IEnumerable. I found IList is derived or extended from ICollection and IEnumerable. Why the definition of class CollectionB...more >>

Hi All, I need to read data from a Excel spreadsheet, but I got the problem when I tried the code below: StringBuilder sbConn = new StringBuilder(); sbConn.Append(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" ); sbConn.Append(excelFile); sbConn.Append(";Extended Properties=")...more >>

Hi all. I have a class, which has some data. I work with list of objects of this class. The data of each object can have different types. For each type of data should has its own Value property to be correct. It looks like this: public class DataElementInt32 : DataElement { ...more >>

I've created a form and added the following code in the CreateParams property to display a drop shadow on the form. protected override CreateParams CreateParams { get { CreateParams parameters = base.CreateParams; parameters.ClassStyle = (parameters.ClassStyle | C...more >>

Is there such a way to ensure that at a time just one variable (pointer to ref type) is used to maintain the object. This is needed for a multi-threded application where shared data should be used properly. In general I`ve done this by locking objects` fields using mutexes or lock(){} mechanism...more >>

Hi, I have a product entry program that I need, at the time of entering the description, to open an extra window for the image that goes with the description. This product adding program is a windows application for updating our companies website. Here is what I need help with: When the ta...more >>

Hi, I know it is very easy, but I just can't fngure out the algorithm. For example: I have these: string[] a={"1","2"}; string[] b={"a","b" "c"}; string[] c={"d","e","f"}; How to write an algorithm to print all the combinations like: 1 a d 1 a e 1 a f 2 a d 2 a e 2 a f 1 b d 1 b ...more >>

I understand VS2003 cannot develop applications with .NET Framework 2.0. But is there any tricky way to use from a Windows Application built with VS2003, classes from System.IO.Ports namespace, that is, classes from .NET framework 2.0? If not, what's the best free C# class for serial commun...more >>

I'm trying to define a Show3D class that takes a scene graph and spawns a visualization rendering that scene graph in a new thread but keeps it editable via properties in the Show3D class. For example, I'd like to be able to alter the camera in the spawned visualization via a property in the S...more >>

I am getting the above error with this Class Library code: namespace ClassLibrary1 { public class Class1 { private string FoundPathKey; public string LastError { get { return FoundPathKey; } } public static string Read(string pa...more >>

Is it possible to create an asynchronous web application? If so, does anybody have an example that I can follow? Many thanks. *** Sent via Developersdex http://www.developersdex.com ***...more >>

Hello all, Does anyone have any idea that how to use GetLogicalProcessorInformation, win32api, under using csharp? http://msdn2.microsoft.com/en-us/library/ms683194.aspx For me, one of the most difficult things is how to define SYSTEM_LOGICAL_PROCESSOR_INFORMATION structures and how to cast...more >>

Hi, I'm running into one problem with trying to call = "Type.GetCustomAttributes(...)" on my reflected code. Basically - I = can't trap my own custom attribute - I can only catch / identify system = "Custom Attributes" by type. The output below identifies that I can = catch the "DefaultMemb...more >>

I have a solution with 5 projects ( 4 dll + main). When I build it, the log comes up showing a successful build, but the cursor is a thick arrow. When I click on the editor page, the hourglass cursor comes on and stays on for about a minute or so. Is this a known phoenomenon ? ...more >>

Hello, I would like to add some actions to show function of a form with Visual Stuio 2005. Is it possible? Is it possible to create a new Show function which inherit of old it? Best Regards. ...more >>

I found a *.sln and an *.suo file which belong to my current project because the have the same name "TestDatabase33....." as my project. What is the purpose of these files ? If I delete them accidentially: Are they re-created automatically ? Why are they currently not in the project folder...more >>

I thought "using System.DataAccess.Client" would contain all necessary stuff for OracleConnection, OracleCommand and OracleDataReader objects but this is not the case. They are still unresolved after adding. Do I have to install a separate package or enable Oracle specific extensions som...more >>

By default a Form is resizeable. How do I prevent the resizing of a Form ? Ken ...more >>

Assume the current name of my project is "mytestroj". A couple of project files are named with this stem name like mytestproj.sln, mytestproj.suo, mytestproj.csproj,.... How can I rename my project to "testproj1" ? Is it sufficient just to rename all file in WindowsExplorer? Can I do this...more >>

In general I have two procedures which are called at the beginning of a Form: Form1() { InitializeComponent(); ..... } and Form1_Load(); What is the difference ? Which one is called at first ? Where sould I put my own initialization statements ? Carla ...more >>

Hi all. I am sorry for my weak English. I want to dial a modem to ISP with C#. All documentations about this I could find are based on openning serial port and sending modem commands to it like "ATD<number>" for tone dialing and "ATDP<number>" for pulse dialig. Then how can I pass use...more >>

I would like to get the current time(stamp) (including the milliseconds) and assign it into a string variable with a format like: xxxx mytime = getcurrentsystemtime(); string mytime = reformatto("yyy.mm.dd HH:MM:SS:MSMS", mytime); How do I do this ? The hours should be displayed in 24h mode ...more >>

I would like to change the name of the namespace in all of my project source files (after the rename of the project itself). I found no way/menu to let VisualStudio do this for me. Do I really have to change all the various namespace myoldnamespace; lines in dozends of files manually ...more >>

In general the program is GUI based. However sometimes I would like to wirte some text lines to Console as if it is a Console program. When I write a System.ConsoleWriteLine() statement this is accepted without error (during build and runtime). Unfortunately no Cosole pops up at runtime and ...more >>

What si the easiest way to switch from the source of a Form to its corrsponding Design and vice versa back ? Currently I always click on the file in the Solutions explorer. Is there way way with HotKeys ? Peter ...more >>

Assume I position a button on a Form on position (x,y)=20,75pixel Where (in which file) is this information stored ? Marl ...more >>

I would like to write seomthing into the title bar of the current Form "Form1". How can I do this ? How can I display/add a status bar (currently there is no such status bar) and write something into this status bar? Carla ...more >>

Assume the current name of my project is "mytestroj". A couple of project files are named with this stem name like mytestproj.sln, mytestproj.suo, mytestproj.csproj,.... How can I rename my project to "testproj1" ? Is it sufficient just to rename all file in WindowsExplorer? Can I do this...more >>