does it works like ordinary virtual method?? coz I find that child class can't invoke the event of the parent class. class parent { public virtual event SomeDelegate SomeChanged; } class child : parent { void abc() { this.SomeChanged+=SomeMethod; // ok if (this...more >>

I use a SQL server 2000 to store data in local language (gb and Shift-JIS). I can successfully store the data into database, but when i retrieve back from database, i only get "?" in my asp program. Is there any solution? Thx for help....more >>

Hello all. I'm new to .Net so please help me out. I have a application with several "Threads" running to observe various things. From time to time each thread need to add an log entry, which is displayed on a form (a datagrid on a form) there is no database, but i created a dataset usin...more >>

Hi all, I was wondering: Why isn't it possible to write "static classes". By this I mean a class that will _never_ get instantiated, but will always work on and with other static members of its class. The class would in effect behave like a "classic" win32 dll and its exported functions, o...more >>

Inside a method some controls are created at runtime. I added an event handler to one of these controls: tracker.Scroll += new System.EventHandler(this.tracker_Scroll); So in the event handler I used unboxing to get access to the value of the TrackBar: private void tracker_Scroll(object s...more >>

i am writing a Console app, it needs user to input a path. the problem is how can i validate the user input path is valid or not? many thanks.. Kel...more >>

I am trying to develope a small RTF writer to generate project report at runtime, with a limited RTF writing capability. RTF is one page document only, untill we intentionally put page breaks in it and Project report consists of number of pages. Thus, on what criteria it should be decided to insert ...more >>

Will XAML make c# unnecessary ? http://www.c-sharpcorner.com/Longhorn/XAML/PuttingXMLtoWork.asp ...more >>

Hi, I'd like to make my C# usercontrol appear as an OCX does, so that I can import and use in a legacy environment. Is this possible? I hear a whisper of being able to put some registry values in, to make it work, so would there be attributes that do the same thing properly?? any help would ...more >>

Hi Newbie question, New to C# and ADO.net coming from a Foxpro background so struggling with Data access in general.. Just a quick one.. Have databound listview, of a dataset and also textbox boxes bound to the same dataset. On the click event of the listview I want to move the reco...more >>

Hi All, I have a "lib" file and I need to create a wrapper to expose some methods. How can I do this in C#. Can I use [DllImport] to expose methods from this lib? Which folder does the lib file need to stored in order for C# to call unmananged methods. For Example: [DllImport("abc.lib"...more >>

Hi I'm hoping that somebody can help me with the following question. I have a DataView which contains a column which contains a Time. I would like to create an array which will store the times within one hour. For example, all the times between 12:00 and 13:00 will be placed in one index ...more >>

I want to write my own specialized news reader. Are there any free NNTP libraries for the .net framework? ...more >>

Ok, the good news is the last kernel upgrade made bzflag stop working. The bad news is that mplayer, ogle and real player stopped working ! Is anybody in a similar boat? I am using Suse 9.1 Pro with the latest download kernel. ...more >>

Is there a way to query a remote xml file periodically by not using web services? For Windows and Unix platforms. Is there a cheap software product that I can install on each client and my Windows 2000 server and have 'secure' network access? I would love to use VS.NET to access both windows a...more >>

Hi, I have a byte array which I'd like to init to all 0xFF. The array size is passed in as a parameter. What is the best way to do it? I can certainly do it in a loop but it is not effecient. Thanks in advance for your input!...more >>

Hi, Last time I asked about it over a year ago. Did anybody write or maybe somebody knows if the program exists to convert the VB6 source codes (mainly classes, not forms) to C# classes? Any information about any program including commercial would be appreciated. We're having about 500'...more >>

how can i know how many drive in computer? Thanks in advance ...more >>

Here's my code: string[] strKeys; RegistryKey rk = Registry.CurrentUser; RegistryKey val = Registry.CurrentUser; string sLocation = "Software\\Microsoft\\Windows\\CurrentVersion \\Internet Settings\\P3P\\History"; rk = rk.OpenSubKey(sLocation); strKeys = rk.GetSubKeyNames(); for (int i = 0...more >>

I need to write code which will open all HTML files in a given folder and possibly dump the paths into a collection. A user will not be able to select them. Any ideas?...more >>

Hi there, I am trying to follow this guide (http://www.c-sharpcorner.com/Code/2004/March/MultilingualAppsInNet.asp) with regards to creating a multi language application. I want to offer 2 languages at the beginning - English and Spanish. My question is, do I need to embed the resource fi...more >>

Hi all: I have an application that hides itself and displays an icon in the system tray. Is it possible for this application to detect keystrokes and/or mouse movements while hidden/minimized. So the application is not loaded and visible, so mouse movements on the form won't work, I need th...more >>

I've read, http://support.microsoft.com/default.aspx?scid=kb;en-us;326495, and searched on msdn.microsoft.com and google, but can't get this to work. I've done it in the past, but I can't remember what I did. A developer has created a C# web project, and sent me the source files. I'm trying t...more >>

How can I copy the contents of one datatable to another datatable? I've already the source table so I only need to copy its rows. Thanks. ...more >>

Hi all I have a list of Componet objects and put them in Containner, after container is disposed then components doesn't disposed I write some code example Component c = new Component(); using(Container list = new Container()) { list.Add(c, "c"); ISite site = c.Site; ... }...more >>

If I'm filling a DataTable and, in the middle of the table fill, I set the datagrid.datasource to this table, how can I stop the grid from reflecting the changes from the table after I set the dartasource? Since I' m not sure I'm explainng it well, here's some pseudocode: for (int i =0;i<20000...more >>

What tools are available for multi-language issues? Menu items, error strings, etc. Qt has the tr() macro and some other tools that make it easy (relatively) to translate an entire application to other languages. Windows uses string tables. Does .NET have something that could be similarly...more >>

This works well for binding a Dataset (created from an XML file) to a DataGrid for the entire 'page' table. However I would like to only grab a few rows from the 'page' table (like: select id, description from page where docid = 1). Any help would be greatly appreciated... because this datagr...more >>

Hi, I'm getting a list of running processes on a machine using Process.GetProcesses(). Can I identify programmatically which of these processes is running as a service. 10x in advance. Chris ...more >>

I am about to install a asp.net web application I have written in the 'real' world - this app uses mutilple assemblies (minimum of 10) and calls out to web services which in turn call some COM+ components all of which I have written in C# .net. Currently the AssemblyVersionAttrbiute is set to ...more >>

Anyone know how to scroll a server multiline text box to the end of it's contents after it's been updated? ...more >>

Hello, I was wondering if callback delegates, called in response to a event, are executed in their own thread. I was suspecting the OS might spawn a new thread and have the delegate execute in that thread but having written a small sample application this does not seem to be happening. I'm ...more >>

What are some good ways to programmatically check for software already installed on a computer? For example, to check a version of Internet Explorer, a program can check the registry for the following value: [HKLM\SOFTWARE\Microsoft\Internet Explorer] Version, and see if the version is 6.0 or...more >>

My print status dialog is appearing outside of the context of my application. How can I center this dialog on the parent? Also, is there a way to modify the information shown on the print status dialog? TIA Harry ...more >>

I am being passed a string value in the form of MMddyyyy that needs to be converted to DateTime. Do I need to first convert the string to MM/dd/yyyy before calling the DateTime.Parse(string) method? ...more >>

Hi, I try to query the Logins on a remote computer with a little c#-program. Everything works fine, but some Logins are not returned from the remote computer. Microsoft confirms that there's a problem with the Win32_NetworkLoginProfile class. http://support.microsoft.com/default.aspx?scid=kb;DE...more >>

Is there any way I can have a C# program check to see if Anti-Virus software is installed using the same methods that the Windows XP SP2 security center checks. I'm writing a program that verifys a user has anti-virus software installed and running before allowing the user to proceed. If I can avoid...more >>

Question: Will C# 2.0 offer a way to directly and reliably produce the fastest MSIL null check, i.e. a single opcode? The current C# compiler will emit this opcode automatically when comparing a type against null that doesn't override operator==. However, if the type does have its own equality...more >>

how can i convert string to int or long AND into to String ? Thanks Axel ...more >>

I am getting an error (a few among many) for the following lines of code: retval[curRowNum].BrokerName = (( curRow["BrokerName"] == System.DBNull.Value ) ? SqlString.Null : (string)curRow["BrokerName"] ); retval[curRowNum].BrokerGroupId = (( curRow["BrokerGroupId"] == System.DBNull.Value ) ...more >>

All, I am having a problem using the Logging Application Block and EIF with a Windows Service I am writing. If I run the Service under an admin account all works fine. However, If i run it under a normal user account I get the following error message in the EventLog Error loading an Event Sink...more >>

Hi, I have used the xsd tool to generate a class from a schema. I then use the XmlSerializer class to write an object to an XML file. So far so good. However attributes that are set to their default values are not serialized to the XML file. However I would like to force the serializer ...more >>

Hi, I wonder... occasionally I am answering questions in this group, BUT looking at my profile I can't see the 'Questions answered' and the 'Users helped' counters update... why is that??? -- Nadav http://www.ddevel.com...more >>

Hi all, Does anyone know how to end a Console.ReadLine() programmically rather than typing the enter key in C#? I have tried just setting the class object that contains this line to null, but unfortunately that doesn't clear it up because it is waiting for a signal to reactivate itself. I ...more >>

A lot of people say to use properties to pass variables between a main dialog and a subdialog like so: Form form = new Form(); if (form.ShowDialog()==DialogResult.OK) { string str = form.StrinValue; } but how should I close the dialog since if I do the following in the sub form when the...more >>

Hello, i need help regarding using Crystal reports in C#. I don't want to populate my Dataset/Datatable through database. I have used a Datatable and also a dataset as DataSource for CR. but it didn't help much... in case of DataTable, it throws an exception "Error in File <.rpt File Name>: In...more >>

"Mustafa Rabie" <mrabie007@hotmail.com> wrote in message news:... > Hi All, > i have a question if someone could help i'd really appreciate it: > > 1) i was wondering if there's a way to cast a bitmap into an icon that could > be used with notifyicon component? > > thanks > mustafa > > ...more >>

I've got a service that's for some reason decided to disable itself - it can't be stopped and started, and when I try to uninstall it, it says 'the service has been marked for deletion.'. eh?? It actually IS uninstalled - i.e. it hasn't got a file to run installutil /u on, or an entry in add/remov...more >>

Hi I have created a windowds service project, it is working fine and I can debug it ok, but there is one thing up - when I drop a timer onto it, it doesn't work. I have set the service to be a LocalSystem account, I have set the interval to 2000 (2 seconds) in the OnStart event (which I know is fir...more >>

Hi. I have a web form with a datagrid that displays employees who are on holiday. One of the datagrid columns shows the date of their last day of holiday, but what I really require is the Start Back at work date, i.e. if their last day of holiday is a Friday, then the Start Back date should be the f...more >>

Hi, Anyone knows what the equivalent of the IsDate function is in C#? Thanks Mike...more >>

I know that 16bit colour is split up into 3 "5bit" sections but i can't seems to find how exactly 8bit is split up?.... *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

Hi, I have experienced low performance using the System.Net.Sockes.Socket object: 1. An unmanaged application that use IOCompletion ports gives performance of about 1.33 better then the same app written in C# using the Begin*/End* APIs. 2. I have did an additional test using .NET Sockets: I ha...more >>