Hi, I have a newbie question. Lets say I have a very large file and a key that says the information I am interested in is from byte 1,000,000 to byte 1,100,000 in the file. How can I read in the bytes of interest without reading in the entire file? Thanks, Bob ...more >>

Hello, I am concerned about my current project. I have to connect to a database by internet. Therefore I have to store login name and password for the database in my application in some way but I am concerned about security. I would be very pleased with ideas of how to store these informa...more >>

Structure in C DLL ---------------------------- typedef struct IrData { unsigned short uiFormat; unsigned short uiLength; unsigned char* pchData; } tagIrData; Function in C DLL ---------------------------- short ConvertData(char* pchString, tagIrData* ptIrCode); ---> This function fi...more >>

Quick Remark. I have a class that looks like this [Serializable] [XmlRoot("Class")] public Class { [XmlAttribute] public int Attribu { get{};set{}; } [XmlAttribute] public int Attribu { get{};set{}; } } Set up perfectly for Xml Serialization / Deseriali...more >>

Here is a snippet: ------------------------------ double[,] a = new Double[2,2]; a[0, 0] = 1; a[0, 1] = 2; a[1, 0] = 3; a[1, 1] = 4; MessageBox.Show(a.ToString()); result: System.Double[,] ------------------------------ Is there a way to customize ToString's returning value so th...more >>

Hi, I am writing a console application to send a key sequence to an old clunky application on a regular interval using the windows scheduler. I can get it to work if it is a windows form application but not in a console application. Two questions I have: 1) how can I get this code modified ...more >>

Hi I am in the progress of developing a web site whereby developers can do free online tests on various programming languages. I would just like some advice or feedback on ways to improve the site or other comments of the site The site is http://www.quiznetonline.com Thanks in advance M...more >>

When using the properties designer to store application wide properties how do you get this to work across a project group containing an EXE and a collection of DLLs. I'm using C#.Net 2005. I noticed that the designer creates and app.config that gets copied to the output directory as a [progra...more >>

I have an application that I am adding support for plug-ins and I am looking for some help on the best way to handle this. My question has to do with AppDomains and the best way to use them. I have a directory structure like this: MyApp \AddIns ...more >>

Can someone tell me what is the difference. Just start learning it, most books are for Pro edition, will I miss something by using Express edition? Can get VS for about $100, so is not problem to use either one. Thank You ...more >>

How do I declare an array of references to the elements of an array of values? Ray ...more >>

Hi, I'm coming back on the ListView component that i would like to design. I finally finish to analyse how it should work (on paper). So i have properties, methods and events that i should implement. I found several points that must base component respects to implement it. - it should imple...more >>

Hello Everybody! Considering this code: try { ExecuteOperation(); } catch { Rollback(); throw; } Now, if ExecuteOperation() throws an exception "exA", AND during catching also Rallback() throws an Exception "exB", I will lose every information about ex...more >>

In C++ I can initialise a struct as follows: struct fileInfo {char filename[STRLEN]; int gotFile; int ch; int ln;}; fileInfo configFile = {"", 0, 1, 1}; Is there a similar way to initialise a struct in C#? The compiler flags an error at the opening curly brace of the second line of the fo...more >>

i want to extend the progress bar control via inheritance my question is...in the ide how can i expose the inherited control for instance can i ad my inherited control in the tool box or is there a property that has control inherits from thanks dave ...more >>

My computer is set to English location and locales via the control panel. How come it therefore thinks the current culture is en-US ?...more >>

...more >>

I have created an ASP.Web Service on my machine. This has a COM Object registered to it that was written in Visual C++ in Visual Studio 6. I want to have the debugger step into the Visual C++ code. Is this possible? ...more >>

Hi I have been tring to use some of the following classes which are new in ..net version 2 from what i have read on the MSDN the following should be supported XmlReaderSettings settings = new XmlReaderSettings(); AND XmlReader rdr = XmlReader.Create("books.xml", settings); Bue i get...more >>

Hai, What is exact difference between in windows user controls and custom controls and i want to dispaly login user control as popup (like a form) window in one Parent form can any body help me. thanxs chandu ...more >>

Hi!, I am just starting out in c# here and what I want to do is get a list of files, list them in a a listBox. I want the to beable to select either 1, 2, ... ALL files in this list and execute a job on them. Here is what I have so far: using System; using System.Collections.Generic...more >>

Hi I have a an application that opens up forms as it runs. So at any time 5 forms may be open for example, each form represents a room. I need a way to iterate through these forms so that someone doesn't open the same one twice. Is there a built in way of doing this? c#, .net. So i would ...more >>

Can anyone tell me what I'm doing wrong in the below snippet of code? I'm simply trying to override the == operator but having no luck. I can't even get it to hit a break point at the top of the == method. The line of code I'm using to compare is: MyState a = new MyState(LINE_STATE.LINE_STATE_...more >>

Hi guys I have a project that sometimes, when i run it, it just hangs as if it is about to run but stays hanging. Obviously i assume it's my code, however, restart my computer run the same code and it runs fine over and over and over and then seemingly randomly hangs when trying to run. ...more >>

Can I change the language of an existing form on the fly? Say I have two radiobuttons: "dutch" and "english". When the user selects one, the form must switch to the selected language. Is that possible and how? When I set System.Threading.Thread.CurrentThread.CurrentUICulture, any new form...more >>

Hi, I'm not having a lot of luck googling for this one, I want to be able to store a custom class in the user settings (DotNet2.0, win app). I don't wish to create public get / set properities for all the things I want to persist just for storing in the user settings file (because that wou...more >>

Hi, This could also be read as 'Does the EnumChildWindows callback block the rest of my application until the enumeration has finished?'. Basically i want to create a treeview similar to spy++... and i don't want to start building the tree until all the windows have been enumerated (obviously...more >>

Hi, I have been searching for tutorials and tips on how to create my own Dialog box using the CommonDialog abstract class, and I have not been able to find anything useful. Can anyone have any example they would be willing to share or suggest a decent tutorial? Thanks David ...more >>

Hi, My application creates a project that is structured like a tree, so i want to use a treeview to display it to the user. Would it be a good idea to create the various parts of project as classes inherited from TreeNode and then just add them to the treeview (ie adding extra properties to t...more >>

Num1=1 Num2=1 writeconsole(Num1==Num2) Writeconsole(Num1.ToString()==Num2.ToString()) WriteConsole((object)Num1==(object)Num2) What will it print? ...more >>

How can i access the value of one textbox1.Text in Form1 in Form2. Form2 is opened right after Form1. I have worked on c++ but havent worked on c# with Windows applications. ...more >>

Hi! everyone on this group. For the last post, i figured out what was the problem. I was trying to create ans parse xml file which is not possible simultanously as the file is already in use by a process and another process for parsing cannot access it. I have to implement e-banking as my f...more >>

Dear All :) i'm using c# , VS 2003 and IIS 6 i was wondering how can i get all the virtual directory folders available on the local server using c#. i'm trying to build a desktop application that will list virtual directories available on the localhost. any help:) thanks for ur time :) ...more >>

Hi, I've got a setup project which installs SQL Server Express as a prerequisite to my program. The problem is that by default it's installed using the SQLEXPRESS instance name and Windows Authentication login mode. I'd like to have my own instance name and SQL Authentication, which is easi...more >>

Will private bool IsDST(DateTime d) { return System.TimeZone.IsDaylightSavingTime(d, System.TimeZone.CurrentTimeZone.GetDaylightChanges(d.Year)); } in .NET 1.1 return the same thing as this in .NET 2.0? private bool IsDST(DateTime d) { //convert time to local and check for daylight sa...more >>

Hi, My application requires 3 different types of logging: Standard Debug Performance I want an approach that can easily allow the user to do this: At the moment, my code looks something like this: //To display some standard log message WriteLog( myMsg ); //To display a debug mes...more >>

Hi, Can anyone tell me why i cant create the following class as 'static': //Start using System; namespace WinAppSQL.windows { public static class WinAPI { public static int go() { return 1; } } } //End The compiler refuses! I'm using VS2003 framework 1.1.4322 SP1. Cheer...more >>

is it possible to select from 2 datasets, forming a 3rd dataset - "select ds1.field1 from ds1, ds2 where ds1.field1=ds2.field1" ? Or something similar? thanks ...more >>

hi. i am new to dotnet .... please clarify my doubts tell me about type of applications which is in ide... eg: what is the purpose of console application,..and so on how many applications in templates... by devi.n ...more >>

Hi, I have a class with a handle to a window and a handle to its icon (if it has one). What do i need to do to correctly free these resources when my class is disposed? Cheers, James. ...more >>

Hi there, I have a farely simple question that I can't seem to find the answer to. I've got a C# Winforms application that after building results in an executable. This executable is then renamed to an .scr file and used as a Screen Saver. How can I get this file to come up with a differ...more >>

I have an resources only assembly. >From inside the assembly I can access the several resource objects. string1 = Resources.Resource1.String1 string2 = Resources.Resource1.String2 image1 = Resources.Resource1.Image1 But using this assembly in another project I can't get to them becaus...more >>

Hi, I have this project it has a folder that it's supposed to read but when I run an error occurs the type or namespace name src could not be found(areyou missing a using directive or an assembly referrence?). This folder is src it contains a folder called controls and in controls that's ...more >>