Hi all, i am having c# application. I have bunch of URL's which i want to validate. that means i want to check whether those url's are valid or not. When i start processing url's one by on synchronysly its taking lots of time. So what i want is to split above task. I want to use threading in ...more >>

Hi, I'he a datagrid in asp.net in a C# project and binded the following dataset to it: grdAssignments.DataSource = myDataSet.Tables[0]; but whey I run it the grid is not visible!!!? -- Regads, Rochdi...more >>

I am trying to build IVR system using c# . i know that .net wrapper for tapi does not work well. but it seems that many made it work. So my question: Is there any hope to find a working code that may show how to start in tapi and utilizing Text to speach engines to respond to call? Any hints ...more >>

Hello All, I have a question about how to handle exceptions. Iam working on an ASP.NET application which has a presentation layer, Business Layer and DataAccess Layer. Iam confused about where to handle exceptions. Say forexample I have a requirement where certain value has to be between 30-7...more >>

Hi all. I am having application which is checking whether URL is valid or not. I am using webrequest for this. But it is taking lots of time as at a time of getting response may be that url is downloaded. So is there any other way to get response in terms of url only instead of downloading who...more >>

Hi, How do I write a db driven app that will work independently of data provider. No matter whether backend is Oracle, SQL Server, mySQL or Access, it should work smoothlesly tx...more >>

I am trying to push a array or struct onto a queue then dequeue... when dequeue'ing, it is returned at type"object"... i can see the "value" is acutally the struct/array type however, once i get this return object I cannot access any of the definitions/values withing the struct... heres an e...more >>

Hi all, Lots of MS's apps have horizontal lines in dialogs, that look very much like thr GroupControl, but they're just single lines. Any way I can have lines like this in my apps without having a GroupControl with three sides off the form? ;o) ...more >>

Hello, I need to interact with the Win32 API "BackupRead," and it returns a byte array as one of its parameters. I need to be able to cast the first part of the byte array into a special structure that describes the data contained in the rest of the byte array. How can I do this? For ...more >>

How can I download an image from a web server provided I have the url of image (i.e. http://mypictures.com/pics/picture01.jpg) ? Thank you...more >>

I've never done database code in C#. :( I've connected a dataform to a database and can reference all the items in the table. I want to filter the elements though based upon the value of a field. The field is call CategoryType of type unsignedByte. The value I wish to filter on it '19'....more >>

I have some code that uses the WMI class win32_NetworkAdapterConfiguration to access each adapter in a system. On 99% of the systems the code seems to work. On a very few the code fails when trying to access the WMI object. Here's the code: ManagementClass objMC = new ManagementClass(...more >>

Hi all, I am trying to access a public field of another form class within the same namespace. The field is public, what is the best way to access it from a different class? I defined as private MyNameSpace.Form1 cForm1; and I am trying to use it later as TextBox.Text = cForm1.TextBox.Te...more >>

I'm trying to get the process id of some application and I get an error for this line: Process [] myApplications= Process.GetProcessesByName("MyApplication"); The error says: System.InvalidOperationException: Process performance counter is disabled, so the requested operation cannot be perf...more >>

Hi All, I have saved my Application Event Log from the MMC Console to a file on my C: Drive... Does any one know how to load that file in a WMI Object programmatically? This is available to me: 'Set objWMIService = GetObject("winmgmts:" _ ' & "{impersonationLevel=impersonate,(Security)}!\\...more >>

Hi, I have a few webservice questions i'd like to bounce of you... 1. Can a webservice contain a paramterized contructor ( can't the contructor take parameters )? 2. If two users make an initial call to a webservice, will diferent instances of the webservice object be instantiated on the s...more >>

Hi, I have a console app written in C# to kill a certain process. I don't want the console to come to the foreground when run and I want it to exit itself without waiting for the 'Press any key to continue' prompt at the end. How can I run it so that it is hidden and once it has completed ...more >>

Hi everyone! I'm trying to get the windows messages sent to and from another application. I'm able to get the handle to this object, and I pass it into the following function: public class MyHookClass : NativeWindow { public MyHookClass(IntPtr hWnd) { ...more >>

We are looking to obfuscate our code and other assembles. I just want to which obfuscator to use and does anyone knows any site or article which compares different obfuscator including pricing information. I need a obfuscator which be integrated without my build process. i don't need any manua...more >>

I am having a hard time understanding the logic behind the Rectangle object. My problem has to do with the way the rectangle treats the "Width" property. For example, take the following rectangle object. Rectangle myRec = new Rectangle(0, 0, 2, 2); If you draw this rectangle on the screen ...more >>

I have the following code on a form that launches Microsoft Outlook and creates a new email message for the user: [CODE] Outlook.Application oApp = new Outlook.Application(); Outlook.MailItem oMail = (Outlook.MailItem)oApp.CreateItem(Outlook.OlItemType.olMailItem); oMail.HTMLBody = "SOME H...more >>

I need some help with this. I have two files page.aspx: A page that a user calls uc.ascx: A user control that page.aspx uses. The ascx file has HTML used for a site background which would display one of two images. If page.aspx is in the root directory, the displayed image has no text. ...more >>

How do you handle nulls and strings from Sql to a string value? On a web page if the type is a VarChar going to a textbox, you can: textbox.text = user["stringValue"]; But if an int value that could be null you need to test for DBNull.Value first and just ignore it if it is a Null. This ...more >>

Hi, On a form , I'm trying to trap when a shift key is pressed. Can someone explain how the KeyUp,KeyDown and Key Press event works for Forms. Thanks -ZS...more >>

Hello, all. I've created a C# dll that contains, among other things, two functions dealing with byte arrays. The first is a function that returns a byte array, and the other is intended to receive a byte array as one of its parameters. The project is marked for COM interop, and that all proce...more >>

There is probably an extremely simple answer to this question and I'm just being foolish. I have a main form (let's say FormMain) which opens other forms (let's say Form1, Form2). How do I keep those created forms, Form1 and Form2, from closing when I close FormMain? Right now what I'm doing...more >>

I have a dataset with a date in it. The type is smalldatetime on Sql Server and I am just doing a "SELECT * from x" to get it. All my other fields are fine, but this one gives me an error of: Specified cast is not valid. The data that is coming back is: 2005-05-09 17:52:59.923 My C...more >>

Hi all, just wanted to know how can I just quickly round to nearest 100th, and use the first two decimal places of a double value in a textbox, instead of all the decimals. Thanks in advance, Carlos ...more >>

I have been handed a program that someone else wrote to preform simple maintenance on. I had a request to fix a minor bug, so I checked the program out of Source Safe and attempted to just build it. When I do, I get a build error Could not find type 'MyProject.MyControl'. Please make...more >>

Please do not respond ! It 's only test for learning aims ...more >>

I'm getting the exception: <exception text> An unhandled exception of type 'System.Resources.MissingManifestResourceException' occurred in mscorlib.dll Additional information: Could not find any resources appropriate for the specified culture (or the neutral culture) in the given assembly. ...more >>

How can I collapse all of my methods in the viewed class at once, instead of clicking the '+' next to each one? Is there some magical 'double click here' and they will all collapse at once? :) Thanks all! ...more >>

I have created a series of classes for my business layer, data retrieval is working fine and things seem good. However I have quickly discovered a design flaw in my system in that my objects aren't aware of siblings and parents. In other words, if I have a Customer object and Customer object...more >>

Hi, I have created a WinForm application and used the MVC pattern to enabled the client-side to be developed in ASP.NET in the future. I have a question about the location of the various files and how many assemblies are required to minimize the impact of changes and deployment. Curren...more >>

hi, all I am just wondering if there is some difference between these two code: I: using(SqlDbConnection con = new .....) { SqlDbCommand cmd = new SqlDbCommand(strQuery, con); cmd.ExecuteNonQuery(); } Once the program exit the using }, the con should be disposed. II: SqlDbConnectio...more >>

Ok, so here is the problem. I'm working on a headless server program implemented as a .NET C# Console project. There is a UPS mounted to this server (though not a windows compliant UPS). I can only talk to the UPS over a special device driver. Through this device driver I can detect that the U...more >>

Hi Every One I wanna to access the [TARGETDIR] in my Installer. I don't want to save the Target Dir in to Registry. Becuase I have to use it once. Thanks...more >>

I've been using enum as input parameter to methods in the belief that this was a safe method of restricting the input parameters, but the example below proves me wrong. Is there a way to prevent this? class Program { enum ValidColor { Red = 1, Blue = 2 } static void Prin...more >>

I've created windows application with its default form and add my function to the form then added other form , i need to show the second form before the default one, i can not get this work?...more >>

Hi all Im building an object model so I can deserialize my incoming XML and Ive got a wee problem My incoming XML looks like this .... <Surnames> <Surname>Kelly</Surname> <AlternativeSurnames> <AlternativeSurname>Hill</AlternativeSurname> <AlternativeSurnam...more >>

I have object that connects to a database and fetches data for 10 tables in the database. Because the database schema can change I have opted for a collection of SQL Databadpaters that fill a dataset client side. The procedure cycles through each table and executes "select * from [i]" th...more >>

Hello, I have a dataGrid that contains customers details, i made an event that when the DataGrid is loaded the first row is marked or when some row is clicked this row is marked, how can i do that when the user uses the Up and Down arrows, it will mark the row that the user is on now. i tri...more >>

I have two Question : 1) I created an installer project for my application and added it in User Program Menu=> i wondering how can I add UnInstall Action when install in User Program Menu. 2) when install the application i have three copies of exe file one in desktop second in application ...more >>

Below is a bit of code that creates a delegate. The delegate invokes a member function of a struct. The code compiles, but has surprising behavior: using System; namespace ConsoleApplication1 { public struct SimpleStruct { public int i; public void assignTo...more >>

Hello Newsgroup, I've seen (not too) much talk (chat sessions) and a few links about C# 3.0. I'm a right in assuming that C# 3.0 is a long way off and next month when VS 2005 comes out, it will have C# 2.0 contained? Does anyone know if C# 3.0 release is something like VS 2002 being relea...more >>

I have tried to make apps in VS2005 C# for PDA, runs on emulator but fails to deploy to pocket PC 2003 saying I need to update activesync...but have latest ver. Barry ...more >>

Hi all, I am not sure if this is the right NG to post this question. If that's the case please point me to the correct NG. I have a class library(myLib.dll) which has a class(myClass) which has a method(myClassMethod) that creates a form with a button on it. The application tha...more >>

Hi All, Can any body please tell me how i can write a device driver using CSharp. Thanks, Ritu ...more >>

I'm developing an application on the smartphone. To reduce the size of = the application i'm using panels where appropriate instead of forms. As = a result of the design, I need to have different context menus on one = form. I had tried to declare two MainMenu items and then simply switch = t...more >>

I am trying to write an app that accepts many connection from a client (TCP). So, threads are required (I assume). I have created a thread, but when a connection is established, I'd like to write this to a RichEdit. So the code inside the thread code needs to access this RichEdit control...more >>

Hi, I have a PassWord column in SQL Server 2000 which is image datatype. How do I transfer or decode/encode text to image datatype so that my SQL Server recongnize it? Any help will be appreciated. Jason ...more >>

I created a reference in my project to SQLXMLBULKLOADLib. Then I create an instance: SQLXMLBULKLOADLib.SQLXMLBulkLoad4Class bulkLoadObj = new SQLXMLBULKLOADLib.SQLXMLBulkLoad4Class(); bulkLoadObj.Execute("c:/data.xsd", "c:/data.xml"); and i get the following error message: 'SQLXMLBU...more >>

Hey all, I am accessing an ms access database using .NET and C#. Like so, /* Create the database connection. */ connection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Name); connection.Open(); And all is good. My "ticket" table has the setup: auto number (P...more >>

A quick question. In C++ I always do the following to stop a user from loading two or more instances of my application: HWND hWndByTitle = FindWindow(NULL, "Hello World"); if (hWndByTitle != NULL) { /* MessageBox(NULL, "The Application is Already Open.", "Warning", MB_OK | MB_ICONWARNING)...more >>

Hi, Can anyone tell me how to disable the horizontal scrollbar and make it invisible in a listview? Thanks in advance!! ...more >>

Sorry for reposting, subject line was incorrect... These are not working in Visual Studio .NET 2005 beta 1 (no such methods) mainMenu1.MergeMenu(contextMenu1); and myContextMenu.MenuItems.Add(fileMenuItem.CloneMenu()); Are these being changed from Visual Studio 2003 to VS2005 ??...more >>

Hi guyz, How can I manipulate programmatically to show placeholder text for all empty elements? Thanks in advance. ...more >>

I'm starting up on big project that will take much of my time in next year or two. Until now I was mostly self-employed on small projects so I didn't spent so much time modeling system before implementation. Sure, I wrote use cases now and then, draw UML in Visio but it wasn't matter of life a...more >>

Hi. I would like to ask if there is a method to force streamwriter.writeline() to write line at the end of existing file, or should i have write the method for my own. PK ...more >>

Hi, I have created a Windows 'user control' in C#.NET. This user control defines several public 'properties' that the outer world can use to tweak the behavior of the user control. However, whenver I drag the user control to a Form, I noticed that the 'Windows Form Designer generated code' c...more >>

Hi, I have created a Windows 'user control' in C#.NET. This user control defines several public 'properties' that the outer world can use to tweak the behavior of the user control. However, whenver I drag the user control to a Form, I noticed that the 'Windows Form Designer generated code' con...more >>