The ADO.NET DataSet is idea for application development, especially if you need disconnected data. DataReader objects are great in the connected environment but are forward only. What do you do when you want a connected application but need the ability scroll forward and backward within the ...more >>

Ex: I have 2 classes like this: class Parent { private string msg; public string Message { get { return this.msg; } set { this.msg = value; } ....... } }; class Child : Parent { ...more >>

I'm using NUnit to test a Class Library project (in a dll) that will eventually be used from a web project. When writing my test, everything is great, except I want to have my database connection settings in my web.config file, and use System.Configuration.ConfigurationSettings.AppSettings["m...more >>

Hello. I'm downloading some file from some http resource to file on my local disk with DownloadFile method of the WebClient class. Since the file is pretty large I want to show the downloading process in progress bar. Can anybody advice me how can I do this? Thank you. ...more >>

I've managed this before in C# but can't manage it again for some reason. I've tried both CreateFont and CreateFontIndirect. Help please. Freddie L Richard ...more >>

Hello, Can I use the ToolboxBitmap from the inherted Control to show up in my toolbox and if so how? Greetings Jean Paul ...more >>

Hello, I read several articles about the GAC. Here is my understanding The GAC has 2 main purposes: a/ avoid having the same shared dll loaded several times by different programs b/ several versions of a dll can run in parallel. It is also easy to update the version of a dll in a GAC witho...more >>

it's me again.. with quite interesting discovery :) I was tracing an error for 3 hours instead of 3 minutes because of this surprise. Recently I'm compiling this project in RELEASE with Debug info turned on so that it creates .PDB files and I can see the line numbers in stack trace. To m...more >>

Hello all. Air Hockey game is due up in just over a month. And i've about 2 and a half weeks to work on it. So, i need some feedback and advice. http://homepage.eircom.net/~basquilletj/AirHockey.rar Please download it and give it a quick spin. Not completely working yet in terms of: ...more >>

Hi, I was wondering which is the best way of checking if a record exist in the database before inserting. There are quite a few ways I have seen. Here are some... 1> Insert and hit a primary key violation and then handle it 2> Select of a dataset/datareader based on the new record ...more >>

Hi All! I have a .NET remoting Client-Server application with Server Activated Objects only.. something is worrying me.. sometimes (rarely), I can't connect to the server although it is running. I get the exception saying "A socket operation was attempted to an unreachable host".. it mea...more >>

I have an array of one of my classes (Client[] myarray) ,I'd like to pass this array to a static method of a class for further processing what dose the calling Methods signature look like? Something like this ?? Public Static bool Validate(ref Object pointerToArray) { } Thanks fro...more >>

I am trying to generate: ShortCut.None ShortCut is an enumeration and None the value I want. I can't seem to find anything that will allow me to use enums in the codedom. Anyone have a suggestion? ...more >>

I have a struct... namespace Test.Web.UserControls { public struct StructTest { public const int PageBorder = 0; .... And I'm trying to use it in a ".ascx" file: <%@ Control Language="c#" Codebehind="Header.ascx.cs" AutoEventWireup="false" Inherits="GSS.Web.UserControls.Header"...more >>

Hi, I have a table which has 3 forign keys to three other tables.I's to make an schema out of this table which contains all the constrainsts and all its relations and also I'l like to have the records from the look-up tables to be included into that schema.The reason I like the data is that...more >>

I am trying to send a UDP packet out over the internet to a device. This device is NOT on a local network or LAN or WAN. Just a random IP address on the internet somewhere. For whatever reason, the UDP message does not arrive there the first time I send it (after starting the app). It arr...more >>

Hi All, I am on listing a class's fields with reflection and I have to handle fields which are array of type DateTime [others also]. I cannot get this to work and I get an unexpected run-time exception: //The class to analyze public class Args { public DateTime[] start; } public ...more >>

I'm getting a strange ArgumentNullException after deserializing a SortedList. Haven't seen this discussed in the newsgroups, but it looks like a bug - unless I missed something obvious? I've distilled the problem into the following code. Can anybody reproduce/explain the problem? Thanks, Dan...more >>

I have the need to generate the following code: Type someVar = typeof(MyType); I know how to declare the var and can intialize vars except in this case. I can't figure out how to get the codedom to generate a cll to typeof. Any help would be appreciated. ...more >>

I would like to have the same look on every webform in a solution. Is it possible to have a header and footer with some labels and textboxes and include them on every page? regards Reihaa ...more >>

I'm getting this error when i execute my program ERROR [HYT00] [MySQL][ODBC 3.51 Driver] Acces denied for user:'root@DAKKAR123' [Using password: YES] and when i write the line like this i dont take any error [code:1:3667756d8f] MyConn = new OdbcConnection("DRIVER={MySQL ODBC 3.51 Driver...more >>

I would like to ask which class should i use for getting my PC's gateway ip and can send an email to smtp?thanks I am going to write a program that will check my pc gateway regularly, and send an email if the ip has been changed. ...more >>

hey I tried to make ASP.Net site with a datagrid. On the dg there is a button columnt with command set to select. I put in the code some very simple ItemCommandEvent. In the ... generated code there is this.dgMydata += ... so it should be ok. But it's not. I tried to remove it and recreate ev...more >>

I have develp a web application. My application used msde as my database. How can I pack my application with MSDE as a Installation package? ...more >>

I have built a control that runs an on-line help system. Depending on the category you selected via dropdownlist, it goes out and gets the child subcategories, and if there are any, adds a new dropdownlist to the screen for selection. This continues until there are no children, and then it check...more >>

Hello, Can please tell me how to do it ? This should be simple, because I'd think it's used a lot.. but in reality is not that simple and there is at least 50 topics about it in newsgroups, but the problem is that people see the question and just write about overriding OnPaint or pointing to...more >>

I wand to add an about form to my main form and it should be accessed the old style via the popup menu when clicking on the main form caption bar. It’s easy to create the about Form, but I do not know how to add a link to it on the main Form caption popup menu. How do I do that? -- Re...more >>

Hello, I have a problem with a folder browser (it probably collides with some other control and I can't see the folders). Is there some way to implement it? Some code sources on matter? Thanks! *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...more >>