When you use generic, especially if nested, names can become very long. Is there a way around that, similar to typedef in C? E.g. something like class Mickey<T> {} "typedef" Mickey<T> MickeyT; Thanks, Fabio ...more >>

Hi all, I am building an application that use SecureSocket between java and c#. I found that java need a "keystore" to communicate while c# use cert like ..cer or .p12 or .pfx , etc. I have difficulties making them communicate. Can anyone gives examples on how to make the "keystore" using ...more >>

Hi - I have a interesting issue that I am trying to resolve with a Windows Service I created. I am trying to allow the end-user to install multiple copies of the service on the same server (think SQL Server here, multiple instances on the same system). I am able to set the services name during...more >>

Hi, I'm using \n\r to attempt to carriage return a string which will be displayed in a text box, however, the line remains one line. How do I cariage return a string being displayed in a text box? e.g. displayText = "Hello world line one\n\rHello world line two"; textbox.text = displayText...more >>

I'd like to encapsulate several files -- mostly graphics files -- as a single file. Does .NET provide a convenient way to do this? COM provided structured storage -- but I definitely don't want to go there! Thanks, Dan ...more >>

I am trying to create a simple mdi app with a form anchored down the left of the main form. In this "menu button" form I will have various buttons etc. (i.e. similar to lots of websites) However i cannot seem to achieve this. I have created an mdi parent, created another form and set its Md...more >>

I have an NT Service written in c# (.net framwork 2.0). When it hits a certain error condition, I want it to be to cause itself to stop. How can I do this? -- Message posted via http://www.dotnetmonster.com...more >>

I have a form with a progress bar and a label. The form launches a class that raises an event to indicate the progress. The event arguments contains integers to update the progress bar and a string to update the label. The event handler modifies the two controls with values from the argumen...more >>

Hi: I am looking for any ideas/comments/suggestions on how a Windows Service kind of functionality can be acheived from a web application which which will run under IIS or for that matter any application server say Tomcat. I have a Windows service which should run every half hour and call four ...more >>

I have 2 problems regarding my c# pocket-pc application made with vs2005. both are used in my other applications but i dont find a way to use them on my pocket pc version of the application. 1 How do i open my data in excel ?- did not fint any refrences to office in the pocket pc availabl...more >>

Hi, My production machine has 2G of memory, when aspnet_wp.exe goes up to about ~1.2G of memory usage, I start get out-of-memory exception. Other processes don't use as much memory and I added all the peak memory usage of all the processes (including aspnet_wp.exe), it goes up to no more th...more >>

Hi, I just started the chapter on "Inheritance" and I'm a bit confused so I have three questions: first, here's the code: using System; using System.Collections.Generic; using System.Text; namespace ConsoleProject1 { public class Base { public virtual void SomeMethod( )...more >>

Hi all, in VC6, it was possible to mix multiple lang within the same project using different resource file adn resource only DLL, with Loadstring to change the UI string on the fly. I don't know what is the .NET way of doing that. Could someone please enlighten me on this?...more >>

I want to introduce a one-second delay into the MouseHover event of a label. In other words, I want the user to have to hover over a label for one second before the label's MouseHover event triggers a response from the application. Here's what I've got so far: -- Add a timer control and ...more >>

hi all, i have one requirement in my project.The requirement is i want to fix some domain sites in TcpIp like proxy servers behaviour.When ever end user passing the inforamtion of that domain sites,at that time i want to get the inforamtion and i ahve do some operations.How can i implement th...more >>

We have a component that has no window. Well, no window in managed code - it uses a DLL which itself uses a window, and this is our problem! When the garbage collector runs and removes our component (created dynamically by, say, a button click, and then not referenced any more), the GC runs...more >>

Hi, I'm working on an application that needs to be able to transfer Excel files from remote users (using tablet pc's) to a central server. Is it possible to encode the Excel file in such a way so as to use web services to transfer the file? If not are there any other good solutions? Any...more >>

I have created the following: [WebMethod] public SubjectProperty[] UpdateSubjectProperty(string _CDKey, string _UIKey, string _Subject) { SubjectProperty[] _SubjectProperty = _SearchController.UpdateSubjectProperty(_CDKey, _UIKey, _Subject); return _Su...more >>

How does a custom casting operator work? I have a class that defines one, but doesn't work as expected (or perhaps, the way I want it to). I have the following example classes: ------------------ public class One : IOne { .... }//One public class Two { public One MyOne; .... ...more >>

I recently updated a simple program that uses a filedialog control to locate a file. When I try and run the following code I get this error: Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute ...more >>

Hi NG, how can I implement more then one array property to a class? I have read about the Indexer, but as far as I can see this would only work for a Collection type of class like list or arraylist.... an I could only have one indexer per class right? Coming from Delphi I know array pro...more >>

Hello, I've scoured this usenet group and didn't find anything specific to my problem, so hopefully this won't be a repeated question. I'm all but certain it's not. I would like to *declare* (not just instantiate at runtime) a generic collection whose element-type is a generic class too. Bu...more >>

If I use: ArrayList TimeScale = new ArrayList(); TimeScale.Capacity = 1000; TimeScale[20]="test 1" The last line trow me an error: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index Is there anything I don't get here? ...more >>

Hi all, please pardon me if this sounds too simple. Basically I need to have inter process communication, between a native MFC applicationa nd my C# program. Basically it works something like this, the MFC application is asctual a keyboard hook which translate keyboard combinations into sp...more >>

Hi NG, I have a base class "Telegram". This class , as well as all descants have a static public field "public static int TelegramNo = <a tlg no>;" Now I added all descants of Telegram to a generic List<Type>: List<Type> tlgList = new List<Type>(); TlgList.Add(typeof(Telegram1)); Tl...more >>

I convert a collection to DataSet, reference the first table and throw that into a DataTable. The DataTable is used as a DataSource for a DataGrid. The DataGrid has an associated GridTableSyle. I use the RowChanged() event on a DataTable to capture changed column data. I get their values an...more >>

If I got the following code: try { // something that might throw an exception } catch (Exception ex) { // Log contents of ex here throw; } this will rethrow the exception after logging it, however the stack trace from there on will show the line of the "throw;" stateme...more >>

Hi all, The following call hr = appDomain->CreateInstanceFrom_3( assembly,type, VARIANT_TRUE,BindingFlags_Default,NULL,args,NULL, NULL,NULL,&objectHandle); is fails on some machines we are developing on. This is our first ...more >>

Hello, I would like to create a discussion forum. Anyone know of any good to decent articles/sources that would provide some sample code to get me started? Thanks in advance, Frank K. ...more >>

I have a C# GUI on a Windows XP machine. I need it to run a C executable which resides on a UNIX machine which is networked with the Windows machine. In C++, I think I could have done this with a System() call. Is there a way to do this in C#? thanks, Zenon ...more >>

I would like to create a virtual web drive like what xdrive has. I what this for personal reasons. I know this can be done I just do't know where to start. I would login to my webpage and have a virtual drive Like h:\%username% mapped to my desktop from my webserver....more >>

I'm having a strange problem with a RadioButtonList (manually populated in the HTML, not data-bound) on one of my ASP .NET pages. I have the user select a value and click a button, then the code-behind's function for that button re-sorts a list based on the selected value. However, every p...more >>

I've been trying to find a way to auto size the columns of a data grid but I'm having some problems with it... I have a boolean column that are check boxes for the first column, but most of the ways that I've found cause it to become a text column. Does anyone have any ideas? Karl ...more >>

In the AssemblyInfo.cs file, what exactly is the AssemblyConfiguration used for? -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/...more >>

Hello, I have a question of using 'property' on accessing elements of array. There is an array member in a class. I'd like to restrict accessing the elements of the array through property. And also by annotating the set method of the property with user-defined attribute, i'd like to activate so...more >>

On Page_Load I have set a default value to the field TxtDate.Text as shown below: TxtDate.Text = DateTime.Now.ToShortTimeString(); On the Click Event of my BtnSave I want to capture the default value if the user hasn't changed it, or the edited value of the field if the user has changed it...more >>

Does the function below returns an UDP packet, for example, from the local machine? Why does it give me an error: "The best overloaded method match for ReceiveFrom... has some invalid arguments". Why this error? How can I receive a packet from a specific adapter, for example, my local machine...more >>

Hi, I have a service that runs perfectly well on a normal server but when I install it on a virtual server the service suddenly stops (at random times), all the exceptions on my service are caught, the only entries that I have found are "The service terminated unexpectedly. It has done thi...more >>

In a winform I want to display database records using datagrid, with dataset for a couple of thousands records it seems very slow. I have read an article in group microsoft.public.dotnet.languages.vb. It uses datareader to solve this problem, it's a good idea. I have translated it in c# and want...more >>

Hi All, Quick question, in my program I need to download a large file (100MB) file. I would like to know how can I do this in segments so that if the download fails, I will able to download from the the place where the download fails. Thanks. ...more >>

Hi all I am trying to call a C# method (in a DLL) asynchronously from VB. I don't know how to do this. Any suggestion is appreciated. Thanks....more >>

Hi all, I'm new to c# and .net and I have a few questions I did not manage to find an answer to: 1. what is the equivalent to the "exec" command in python/lisp? meaning: a string is given as input and the function execute it as a C# expression 2. what is the equivalent to the "eval" comman...more >>

Hi all, I'm building a user control in c#. This control has a property which can contain an instance of a user defined class which has to be a subclass of an abstract class A. I'd like the user of the control to be able at design time to select the value of this property from a dropdownlist s...more >>

I want to create a button that will open a file browser dialog box for .exe files. also would apreciate if someone could give me an yahoo messenger id it would make my job alot easyer to contact soemone plz...more >>

Hello all i want to know how to capture the icon of a file or folder , or at least create shortcut icon for it , and then use it in my application thx all...more >>

The two obvious methods for ref'ing assemblies are: Add a reference and 'Browse' for the actual DLL OR Add existing project to the solution, then add a ref to 'Project'. 1: I'd like to find out what the latter method is doing. I'm assuming that it makes sure that debug exe gets ...more >>

Hi, Can any one can please post a code of how to use GetCharacterPlacement API with C#? Regards, Asaf ...more >>

There is an article on MSDN called: "HOW TO: Build a Connection String Programmatically in ADO.NET by Using Visual C# .NET" http://support.microsoft.com/default.aspx?scid=kb;EN-US;310083 The article outlines adding refs to MSDASC and adodb to a project in order to interactively generate and te...more >>

I have the following: this.dataGridViewBill.DataSource = tblResult; //hide the following columns this.dataGridViewBill.Columns[8].Visible = false; //email this.dataGridViewBill.Columns[9].Visible = false; //mobiltelefon When I run the programm, the columns are still displayed. I am de...more >>

I have C# 2005 Express installed on a PC that is unconnected to the internet; therefore the copy is unregistered. I cannot see the Publish option under the Build menu option. Is this a penalty for not registering? Or is it that C# is not correctly installed? Any insights? Thanks....more >>

Hi all, I have a problem with SMTPMail as I want to evaluate the respone of the server, but unfortunately I could neither on the web nor in the MSDN find an example of it. There is no problem with sending the mails, however, I need to find out whether the server sent an error or said that e...more >>

I want to rotate screen, but i don't know how to start. Have anyone even programed about this or known to refer to some information? Thanks....more >>