Hi, I extended one of the standard controls by adding a new property, which is also a class itself. I got everything going nicely in PropertyGrid except for 2 things: 1. As soon as I drop this control on a form, the subclass-property doesn't get instantiated as expected. For example, the...more >>

I'm using a third party .NET 2 DLL from VB.NET and I'm am setting a property of type 'int'. However, if I set a value larger than a 'short' (32k) then reading the property back returns a negative number. Can someone tell me what is likely to be happening within the property procedure that woul...more >>

Hi all, I'm using DAL auto generated code. Is it possible for me to have the same connection string for all my transactions but to execute the command "Execute AS USER = 'myuser'" (SQL Server 2005) before each execution. Where I control the name of the user. Thanks, Avi ...more >>

Hello, we have an ASP.NET website which uses NT authentication to authenticate against an AD server. We then have a set of business objects which are used to store / retrieve information into database tables. The business objects retrieve the connection string from the web.config and use In...more >>

Hi all, I'm having trouble with a project that I've distilled down to the following code. Unfortunately it won't compile and gives the following error (caused by the call to GetHorses() in HorseFarm's GetAnimals() method): Cannot implicitly convert type 'MyCollection<Horse>' to '...more >>

Using VS 2003, I am trying to take a class that I created to create new variable types to handle nulls and track changes to standard variable types. This is for use with database variables. This tells me if a variable has changed, give me the original and current value, and whether the curre...more >>

hey ..NET 2.0 I'm wondering if tit's possible to add some info to an exception. lets say I want to add "helloworld" to an exception so where it's caught can check for this "helloword" text... The reason I ask is that I'm programming a n-tier application and want database errors to be ...more >>

Ok here's my question. I have a program which can run both online or offline. Online work on a Webservice getting data from SQL2000. When the person want go offline he have to be online first and few tables are being saved locally in XML (non sensitive data of course). In offline mode the progr...more >>

Using c# 2.0 in a winforms app, is there a common dialog I can use to allow users to select a directory? By selecting a folder, the user will be identifying the location a group of files will be saved to. The dialogue will return a string path that I will use for this. Please advise. T...more >>

I give up... I've wasted the better part of today trying to find a way to compile Enterprise Library 3.1 assemblies using a key and I simply can't aquire all the resources I need to make it happen. Does anyone have a pre-compiled version of the Enterprise Library assemblies (strong-named) ...more >>

Hi All, I have the following if statement: if ((e.Row.RowType = DataControlRowType.DataRow) && (e.Row.Cells[1].Text.ToLower() = "jake")) { e.Row.Cells[1].Text += "ALERT!!!"; } I am getting the following compilation error on the first line shown above: CS0131: The left-hand side of an ...more >>

Hi I an newbie to LINQ. I have a dataset with one table employee which has a self referencing foreign key manger id. I want to write a query to get all the employees under a particular manager. I tried the following query var results = from e in emp.employee where...more >>

Hi, i'm currently developing a class to communicate with a serial device,using the SerialPort component. Basically,the main application will interact with this class through its method "Call",the class itself will handle all the details of a call (AT commands included). My problem is that i do...more >>

Hi All, I'm new to C# so bear with me. I have a public string const that I need to be visible within any class within my namespace so I'll have one place to maintain the string value and have changes affect all classes. What is the preferred way to do this? Thanks, Steve...more >>

Has anyone have any experience of doing this ? I want a small menu on each row with a few options, I have tried it and it seems to work great at first but after clicking on a menu item and handling that event you get some weird display artifacts, when you hover your mouse over them all the ...more >>

Hi It's maybe offtopic, but do you guys have an ideea of how to develop an knowledge base for troubleshooting an application? Picture this. After deploying an application to multiple locations, we receive many requests for troubleshooting the application. Even if the application works fine, t...more >>

Bonjour, j'ai besoin de votre aides j'ai besoin d'un CMS pour la creation des sites webs dynamique e- commerce avec ASP.NET (creation des produits des familles categories ... et ventes) ou des sites exemplaires sur les quels il faut bas=E9=E9 Merci ...more >>

Adding a custom color in color dialog box: How do you do this? I did look through MSDN but could not find the answer. Zach....more >>

Sorry for the off-topic... It doesn't seems as though Team Foundation Server handles things like estimating 10 hours for a task, stating that 2 hours were done yesterday and 5 hours done today... i.e. time estimating/tracking. Anybodsy know if TFS 2008 going to provide this? My boss is ...more >>

Hi All, I am trying to build an image capture user control using DirectShow to be used in an existing C# application. It needs to have a view finder/ preview window and be able to take still images. My problem is that I am a C# developer and I understand very little C++. It se...more >>

Visual Studio 2005, .Net 2.0, Vista, XP. I have a client Tcp socket that is bound to a particular port and connecting to a remote host. In order to allow reconnects I'm setting the ReuseAddress socket option. This is somewhat dubious I know, but... With the ReuseAddress option, a bind to a...more >>

I must to work with SQL Server database that allow collumns to be null. F.e. column NREWID in table K_OSOBY is Decimal 7 and accepts NULLs. When creating DLINQ object of table K_OSOBY vs net creates property NREWID as Nullable<Decimal>. Is there any way to "tell" vs net that it should create N...more >>

Is there any way to monitor open IE/Firefox windows/tabs from VB.NET/CSHARP and display a small button next to all username/password form fields? Same thing as Skype does with their software add-on, which turns phone numbers on websites into buttons which you can click. I would apprecia...more >>

Is it possible to call another method out of the select statement? In this example I am trying to call GetItem() from within the first select statement. But I get the following error" "Method 'GetItem(MyDataContext, System.Guid, Boolean)' has no supported translation to SQL." public static...more >>

Hi Folks, I've got a treeview control (trvRecipes) and am attempting to detect the 'checking' of a nodes checkbox in order to check all the child nodes. Ive found some sample code to do precisely this on MSDN, but for some reason the event never seems to get raised.... private void tr...more >>

I have a program that uses displays data with scientific units. The user can select which particular unit they wish to see the values in (Kelvin, Celsius, etc...). I have handled this by implementing a conversion in the Format and Parse events. However, if the user changes the configuration opti...more >>

Hello i have one problem with sorting in an unbound DataGridView. I set sorting to automatic but i get errors when having DBNull values in the column that gets sort ("Object must be of type string"). I solved that problem for one grid/column by fetching the _SortCompare event and doing the so...more >>

Hi, The problem is that the line - this.Invoke(new MyDelegate(Function), args); // this = MainForm is being called after the line - terminatePopulate = true; therefore I get an exception which states that MainForm has been disposed when this.Invoke is called... Is there a way to c...more >>

I am throwing the ArgumentOutOfRangeException in my code as shown below throw new ArgumentOutOfRangeException("value", "Value must be > 0"); my catch block is below catch(ArgumentOutOfRangeException exception) { MessageBox.Show(exception.Message,"Input Error", MessageBoxButton...more >>

Hello all, I'm looking for a very simple code analysis tool. I have a large codebase to analyze, and all I really need to do is to find all uses of all methods in a few interfaces. Many tools (e.g. Resharper) obviously do this internally, but I can't seem to find any that expose this simple...more >>

Hi, This is my Program class in my Application - static class Program { /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.EnableVisualStyles(); ...more >>

First I'd like to say that this is not strictly a techie question, but I couldn't think of a better place to ask. I have been asked to write a report on the analysis of a piece of software. Apparently I will need to describe the system as an algorithm, i.e. using pseudo-code and mathematical...more >>

Hi misters, I have an application web (asp.net) and I want define custom Handler for exceptionhandling (Enterprise Library) My custom class.. [ConfigurationElementType(typeof(CustomHandlerData))] public class GestorExcepcionesIU : IExceptionHandler I want to do like this: E...more >>