I am (like many here I read) still quite new to C#. I meticulously try the examples in the book I use and found some tutorials online. Somehow (and this becomes a dejavu, from the time I tried mastering Delphi) the gap between doing these separate assignments (many in Console Applications) an...more >>

I notice a certain 'flimsiness' to the Outlook OM. After running a c# interop against it, the OL client seems to degrade to the point where I have to stop/start OL, or log out or reboot to restore functionality ( such as the MarkAsRead ) property. ...more >>

after I installed the .NET frame work, I try to run some XML project but I cannot, because no *.sln file for those project, they are just *.mak file. How can I start the project with those *.mak files. Any help is deeply appreciated. Thanks you all in advance... the file location is: C:\Progra...more >>

Is it possible to open (ShowDialog) the FolderBrowserDialog in a specific folder location? Thanks. ...more >>

Hi All, Who prints RTF files or streams from C#? Can you give a hint or a good advice? How to do it easier? Regards, Dmitri Shvetsov ...more >>

Hi, I want to get a list of files matching certain extensions, such as "*.jpg;*.gif" (i.e. all files ending with .jpg and .gif). I was using DirectoryInfo.GetFiles(string) method. Unfortunately it appears that I cannot have something like: dirInfo.GetFiles("*.jpg;*.gif"); // where dirInf...more >>

Hi, How do I call the base class's version of method when there is polymorphism? also, what if there are multiple levels of inheritance and i want to call the method that is several levels up? Thanks. ...more >>

I have a program that search the application path for all the Dll that implement a certain interface IText ,when a Dll with the interface is found ,I run a method called IText.Format() which works very beautifully but then I would like to unload the Dll after running the ITextFormat procedure. A...more >>

Hi People, sorry that I will repeat myself, the previous message wasn't cleared. Here is the error: using System; using System.Windows.Forms; <------------- ???? using System.Threading; When I tried to compile: the compiler gave me errors: D:\Oleg\Practice C++\samples\VCSharp\A...more >>

Today, I ran into something I didn't quite expect. I'm sure there is a logical explanation for it so I want to post it and see if anyone can explain the difference to me. I came across a situation when I wanted to see if a public variable inside a struct was null or not. Sample code below: ...more >>

Hi, How do I install an instance of a Provider Control in a way that the IDE will understand - so that the extended properties the Provider Control adds are show in the IDE property grid? In the November MSDN Magazine Cutting Edge code at http://msdn.microsoft.com/msdnmag/code03.aspx ...more >>

Is there some setting that will allow users to select the text displayed in a Label on a Windows Form? I would just like to be able to highlight the text so that I could use Ctrl-Ins to capture the text to the Windows clipboard. (I understand I could have the text display in a TextBox rather t...more >>

Hello, How to start 2 winforms at the same time (in 2 threads ?) ? Application.Run(new frmForm1()); Application.Run(new frmForm2()); Here frmForm2 waits frmForm1 to be closed before beeing displayed. Thanks, Cybertof....more >>

I have a coding problem, modelled by the trial code below I don't understand the error, however elementary this is. Pleases assist, Patrick. try { FileStream stream1 = new FileStream(@"c:\trial\trial.006",FileMode.OpenOrCreate,FileAccess.Read) ; stream1.Close(); } catch { Directory.Cre...more >>

I have a private field like: private XmlDocument xmlDocument; In the constructor, I have: xmlDocument = new XmlDocument(); Is it better to instantiate the XmlDocument in the field declaration like: private XmlDocument xmlDocument = new XmlDocument(); Does it even matter? What is the orde...more >>

Is there any way to determine if the CTRL key is pressed from a MouseDown event on a DataGrid ? TIA Boaz ben-Porat DataPharm a/s Denmark ...more >>

Hi there ! I have some Problems to get a SafeArray out of a COM Server written in (Unmanaged) C++. From (unmanaged) Visual Basic , everything is ok , but unfortunately in C# I get an exception. Can anybody help me ? Thanks a lot !! Roland ----------------C++ (unmanaged) C...more >>

I set up sorting by various columns for a DataGrid. For one of the columns, I would like to implement my own sort algorithm, though. For example, the column contains data like: <a href="http://www.example.com">DEF</a> <a href="http://www.test.somedomain">ABC</a> If I sort by the default a...more >>

Hi, I can have code like: Application.ExecutablePath to return something like "c:\blah\myapp.exe" I only want "c:\blah\myapp" (or even just "myapp") to return, is there some other code I can use? Otherwise, I'll have to trim the ".exe". In the end I want to build a string like "c:\blah\m...more >>

Is it possible to detect when an application crashes, like Watson does? ...more >>

When I call Dns.GetHostByName(Dns.GetHostName()) on one of our lab boxes I get the below exception. I've seen posts saying others in these newsgroups have seen similar issues since moving to .Net. I currently can only reproduce it on one lab box. The box is running Windows 2000 Pro SP4. I ...more >>

Hi, I can make a simple initialization work like this: Object[,] ONE_ROW =3D {{"Vodafone", "5550160100197016"}}; But, now I want to create another array that consists of multiple copies = of ONE_ROW like this (will not compile): Object[,] TWO_ROWS =3D {ONE_ROW, ONE_ROW}; // Works in Ja...more >>

Hi People, Does anybody knows how to set up a V.S. .NET. I am trying to use Windows libraries in my code, but got en error that library in not found, not installed, etc. here is the simple exaple. using System.Windows; using System.Windows.Frames; anyhow, it doesn't recognize the ...more >>

Hello! With the help of what API can I develop my own debugger in .NET Framework??? -- Vadym Stetsyak PDS ...more >>

Hello, This might be a really easy question, but... I am developing a simple Smart Device application that uses a listview. I have a function that adds a item to the listview - code is below. I use the type listviewitem, selitem, on one form to modify the listviewitem, using a timer, ev...more >>

The clcik event on the ListView control seems to trigger off the item level ( the first column ). I would like to be able to trap the click event on a particular subitem ( a specific column's row ). If possible, what do I do to activate that 'cell' - thanks. I thought that listView.Labe...more >>

Hi everyone, I'm writing an application that needs to quit when it encouters an error. However, Application.Exit() doesn't do anything here. Does anyone know why? public bool timerenabled { get { bool timerenabled; ManageXML XMLSettingFile = new ManageXML(); try { timerenabled = C...more >>

Hello, I need some help about a strange thing. I have the following declaration : public class CLockeEnv { private static CLockeEnv mlockeEnv; public CLockeEnv() { } public static CLockeEnv GetInstance() { if(mlockeEnv == null) mlockeEnv = new CLockeEnv(); // R...more >>

Hi, I have a quick question on a design approach using enums - based on the model of something like the HtmlTextWriterTag enum. I presume that what the text writer does is use the Enum.GetName method to convert the enum value to its corresponding tag string. My question is, which is better ...more >>

I have a user control that populates a dataset from a stored procedure. In the event that the stored procedure returns an empty result set, I want to add a record to the dataset indicating to the user that the search returned nothing. How should I add a value to the dataset? *** Sent via D...more >>

Hello, I have a simple question : In the below code, why do i get an (ERROR) saying "An object reference is required for the nonstatic field, method, or property 'mLockeEnv3'" I don't understand why mLockeEnv3 should be static..... Also, what is the difference betwenn mLockeEnv & mLo...more >>

If I catch an exception in a static callback method like: private static void ResponseCallback(IAsnycResult asyncResult) { try { //code...code...code } catch (WebException e) { //handle exception } } will that that WebException object remain for the life of the process??? I h...more >>

In vc6 there was the TRACE fuction to write to the output window while debugging Is this also possible in the VS .NET IDE ? ...more >>

Hey, I made a custom usercontrol (Custom listview) in the Control Library. Now I want in the properties of design a property 'Sort'. (That is not a problem to do that) But, when it is Yes then I want to add following code in my class. private ListViewSortManager SortMgr1; and in the...more >>

Hi All, the following Situation is going through my mind: class Xox { public Xox(){} public object Foo(){ return null; } } class Class1 { public delegate object Functor(); [STAThread] static void Main(string[] args) { Functor f = new Functor(new Xox().Foo); // do someth...more >>

The documentation indicates that the threads "default stack size" is 1MB. The work "default" implies that it can be changed. Is it possible to change the StackSize in .NET? If so how? Is it possible to determine the amount of memory used in the current stack? Any assistance would be appre...more >>

Hi, In C#, how to convert a string to a double? Thanks in advance! Cindy ...more >>

Hallo, ich möchte ein kleines Testprogramm erstellen, dass auf eine Visual C (Studio 6.0) DLL zugreift. Bevor ich damit beginne wollte ich die notwendigen Schritte, anhand eines Beispiels nachvollziehen. (http://www.codeproject.com/useritems/interop.asp?target=dll%7Cimport). Im Beispiel wi...more >>

Hi all, Can someone point me in the direction on this one, resources or examples. I am writing a Windows Service to monitor a folder. When I file is modified within the folder or any subfolders it should write the name of the file to a xml file. Then at a specifed time all the files in the x...more >>

I have a class that I use throughout my application, and I store collections of my class in an ArrayList. To avoid some really ugly casting I'd like to subclass ArrayList to get a typed version. Has anyone done this? Do you have any advice for me? How about some sample code? -- W...more >>

Hi, My question is how to resolve in C# ambiguous overloaded operators? Let say, I have two unrelated classes A and B, each one implements overloaded operator + with the first parameter of type A, and the second one of type B. Let say, these are not my classes and I know nothing about the im...more >>

Hi, I have been working with what i believe is, an poorly designed client/protocol, and this is causing me no end of headaches determining the end of a 'fragment'. The header of each fragment ends in a constant fasion (single line consisting of a carriage return) however the payload afterwar...more >>

hi- i am trying to debug some design-time compenents. i have instructions from this article. http://msdn.microsoft.com/msdnmag/issues/03/04/Design- TimeControls/default.aspx however, when i get to this part "Set Start Application to Devenv.exe path\devenv.exe" the field is ready on...more >>

Is there a class similar to DataGrid.HitTestInfo for Keyboard moving? Need to get the coordinates of the grid when the user is using the shift key and arrows Thanks *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

I've read some material on the upcoming Generics for C#. I've seen two types of syntax used for constraints: - direct specification of the interface in the angle brackets - where clauses I looked at the files in the Gyro download but I couldn't find any mention of constraints. Can anyone enli...more >>

Working with a DataGrid/DataView in VB, I have the following code VB.NET //set the OrderID field of a newly added product _productsData.Item(_productsData.Count - 1) ("OrderID") = _order.orderID; I need to convert this to C#?? Liz...more >>

Hi, I have to use the IPersistMemory interface but I don't know wich reference I have to add to my C#-project to get access to that interface. What reference has to be added? Any help appreciated, Winston ...more >>

Hi, i m working on a vb 6.0 to c# conversion project. It is a mailing application.Existing code uses CDO library for that and this code uses content-type-encoding and charset properties for the message existing code is like that Dim m As CDO.Message m.HTMLBodyPart.Charset = MsgCharset ...more >>

Hi, I'll be very gratefull, if I get information how to instance Microsoft Index Server(if it is possible?) and how to use Index Server methods in C#. Best regards Duncan...more >>

while compiling windows service Project configuration skipped because it is not selected in this solution configuration Regards, Raghavendra ...more >>

Hello I'm on the learning curve for c# and .Net. I program in vb. I'm writing a small application in c# and .net and the database in Oracle. I want to open the database and send a query to retreive some values from the table and store that value in a variable, and if the value is present...more >>

How do I display the system RAM in C# ?? Do I have to get it from the Registry or is there a function for it? If so how?? Thanks /Jonny...more >>

I'm an expert C# programmer (honest) but... the following code prints 'Oranges', not 'ORANGES' - this confuses me because I thought reference types (eg string) where passed by...err..reference - so changing where the reference points to in a method ought to change the behaviour outside the me...more >>

Open source programs in general suck pretty bad also. Here are some loose facts regarding why projects like Linux, PHP, MYSQL, and other open source programs suck: - Linux is simply a clone of an operating system over 20 years old similar to DOS (Unix). That's ALL Linux is. The kernal was tak...more >>

Hi, I created a new control and build a Dll of it. Then I open a windows application (C#) and add this dll to the toolbox. When I will put it on my form I receive following error : An exception occurred while trying to create an instance of NSDataListView.DataListView. The exception w...more >>

I am having the problem described by many people and also discussed in the Microsoft Knowledge Base Article - 313512. The solutions mentioned in that article do not solve my problem, or apparently, the problems of many other people using VS.NET. I have several projects that produce DLLs > 64k ...more >>

hi- i have a custom control that can be dragged onto a form. the control can be dragged around the form with the mouse. i want to draw a selection box around my control when it is selected to be dragged. on the mouse down event of my control i want to pass the size of the control and the l...more >>

I am having serious problems with the following IDE bug: Could not write to output file 'x.dll' -- 'The process cannot access the file because it is being used by another process. ' and BUG: "Could Not Copy Temporary Files to the Output Directory" Error Message When You Build a Solution Tha...more >>

hi, I have following VB code : default Public ReadOnly Property Item(ByVal Index As Integer) As DataColumnHeader Get Return CType(list.Item(Index),DataColumnHeader) End Get End Property How can I in C# pass an argument to a property (getter accessor)? I started as follows but thats ...more >>

Can any one tell me how I express the following VB.NET code in C#???? 1. Private Sub _productsData_ListChanged( _ ByVal sender As Object, _ ByVal e As System.ComponentModel.ListChangedEventArgs) _ Handles _productsData.ListChanged .. . . 2. DataView1.Item(_productsData.Count - 1)...more >>

I know the following is not allowed, but shouldn't it be? sharedObject is part of Derived and should be able to be set in the constructor - no? tia public abstract class Base1 { protected readonly object sharedObject; } public class Derived : Base1 { public Derived() { sharedO...more >>