I've seen a couple of posts on the Internet with others having this problem, however, no one seems to have a good answer. I am working on a C# Smart Device application and have been able to browse for a PictureBox image and insert in the Visual Studio .NET 2003 PictureBox1 properties pane. No...more >>

Hi y'all, I have resized the columns in a DataGrid and I want to set the width of the DataGrid to fit the columns. Just summing the column widths is too short due to the grid and gray row selection column on the left. I have the widths of the columns. What other values do I need to include...more >>

I have developed a mini-app that does some routine maintenance tasks on my Outlook 2003 files. For the dev process, I ran a form with just a GO button on it but now that the app is ready for testing, I want to run it without any user interface. Up until now, I have started it with: ...more >>

Now, i'm converting some c source to c#. Then I can't convert the following statement? Help me... typedef void (*SWFByteOutputMethod) (byte b, void *data); Following is usage of it... void writeSWFFontToMethod(SWFBlock block, SWFByteOutputMethod method, void *data)...more >>

Ok, starting from the basics. Reference types and value types are all objects underneath. So, a String is an object as well. Now, when when we are debugging and we examine the contents of a String object - the debugger actually shows the value of containing string object when you keep a ...more >>

I have created a coposite user control of a text box and a label. I have exposed the font of the textbox property through a property of the control but every time I try to change that through the property grid of the designer when I use the composite control in a form, after a rebuild the ch...more >>

Im trying to understand implicit type conversions from object -> string and vice versa. I have two classes, one Driver and one called StringWrapper. These are just test classes that try and emulate the pattern im trying to follow in an existing project. These are my steps: 1) I have a m...more >>

i'm calling refresh() on a custom UserControl, but for some reason other functions get processed before OnPaint. Any ideas why? cheers dave ...more >>

Hi, I wish to use a class derivated from DataRow. The rows within a table are created with the NewRow method of the DataTable class. So I writed a method NewSTMTTRNRow() in my class STMTTRNDataTable, but I have an Invalid Cast Exception in the code "return ((STMTTRNRow)(this.NewRow()));". ...more >>

Hi, I am writing an ftp program and I provide a form interface (say Form1) to display the status to the window. This form1 reads an ini file, which has all the settings needed to do the ftp (Ex: IP address, username, etc) and starts doing the ftp displaying corresponding messages to window...more >>

I'm using reflection to invoke some methods, now the general patteren of the function defination is private void FunctionName( argument1 , argument2) for some functions i don't need the argument2 but for some i do...is there any way using reflection to invoke the method but omit the last ar...more >>

I have a string which has been assigned the value of "OneTwoThree". I have created a property because I want to be able to assign a new value to this string. I have: string numbers = "OneTwoThree"; public string StringToCompare { get { return numbers; } se...more >>

Why Windows doesn't allow to launch daemon/service in command line ?? Unix/Linux can simply do that.... ...more >>

How to debug a service ? Hi, friends: I created a new C# service project and wrote some log in OnStart() function. But when I type F5 to debug it, system prompt me "Can't debug a service program by debugger. Please use installutil.exe to install it." So, I tried to use " i...more >>

Hi everybody : I need to access the Active Directory of a server (\\server01) and check if an user exists (User : user01 / Pass : pass01). First, i need to check if the user exists and then check if the password is the user's password (user01's password). Any ideas of how to do this?? T...more >>

Is the lock in these two places needed for multi-threading? I thought accessing a variable value should already be atomic. Thanks for your help or comments. bool stopping = false; public bool Stopping { get { lock (stopLock) { ...more >>

Hello all: Does anyone happen to know the best way to handle null values for DateTimePickers? We have quite a few columns in our db that will not necissarily have a date for certain entries. How do you allow for this? I have tried to send a null string to the dataset but it requires a ...more >>

I am getting a error that should not be happening when I instantiate an object from my business layer in a console application within my solution. I get an "object reference not set to an instance of an object." I checked my references and the dll's are there. I have my namespace right and ...more >>

I was ok understanding threads in Delphi pre .net, but reading through a reference book and comparing it to what help file says has confused me A System.Threading.Timer thread in one class calls an event in a 2nd class as follows (fast timer) public void OnDriverSendResult(rackdetail RackD...more >>

Well, I think it is odd. I have written an application that fires off requests at a COM component written in VB6. I am creating multiple threads, one for each test. I know that the threads are being created, I know that the calls are being made to the COM component, I know that the COM...more >>

Hi all, this is a query more than a problem. I have a task in hand, whose scenario is as follows. i have a window application, using a button on which (say 'upload' or 'download') i need to connect to internet and then open my abcd.aspx page to process the text file passed.. The problem ...more >>

Hi How can i convert this into c# ? How can i convert the pointer to a zero terminated sctring back to a C# string object ? Best practice to declare the PCOPYDATASTRUCT in c# ? ...... case WM_COPYDATA: PCOPYDATASTRUCT poCopyData=(PCOPYDATASTRUCT)LParam; printf( "Message from program(...more >>

Hi, I am writing a C# program that is calling C++ legacy code. I wrote a C++ managed wrapper for this legacy code. It seems to work well. The legacy code is handling serial (RS232 or RS422) lines. To keep a serial line "alive", i have to call regularly a function. A c# thread is calling abou...more >>

Hi, I have two applications. One is a WinForm (in future it will be a service) and gets some data from serial port and adds them into database. It can be named as a beck-end appliacation. The second one, fron-end application, is a WebForm user interface. I would like to inform the WinForm (...more >>

Can anyone point me in the direction of a list for the release dates for ..Net including all betas, RCs, 1.0 & 1.1 I don't want 'sometime in Sept 2001' I need a definite list if there is one. Cheers Interviewer ...more >>

I am just getting into this =2ENET stuff=2E Looks really handy=2E I was= trying to run some standard tests, like throwing up a= MessageBox=2EShow("Code Hit Here - ln 124"); Just to make sure I= was building things right=2E I realize I needed to use a few things from the library to make= ...more >>

All, I have a very simple class and all I want to do is override the add and remove methods for logging, thats it. This is my class, however the only methods which I can override are equals, gethashcode and tostring. Why can't I override add and remove? using System; using System.Colle...more >>

Hi, We developped many Dll in C++ to use in a project developped with VC++ 6.0. Now we have another project for Pocket PC that I have to develop with C#, can I use the same DLL, and what I have to do ? Thanks...more >>

I am under the impression that an interface can not have implementation for any of it's members. I have been examining the: HttpContext.Current.User object. The User property of Current is of type IPrincipal. Yet it has a property called Identity which is of type IIdentity and that has a p...more >>

Hi all, Consider the following code as just an example to understand what I want to say. My question is if a class instance subscribes one or more events of another class. If that instance which implements the event handler goes out of scope, what will happen to the instance? Will it be e...more >>

Hello, I was calculating some percents and ended up with these two values that I swa in the debugger (amount1 and amount2 are doubles): amount1 = 4,999,999.72 amount2 = 0.28000000026077 Then, I added these two together and got 5,000,000.00 Why didn't I get a number like 5000000.0000000002...more >>

Hi, I have a server which span two threads and I want to be able to signal the threads to stop in order that my server will shut down properly in the old days of winapi I did it by using a named event created by the server, a call to WaitForSingleEvent in each thread loop with the minimu...more >>

Hi all, I have an app that I want to have activation codes for, it has plugin dll files each of which have an activation code as well. I need to generate a unique code that is specific to the machine that the software is installed on, when the user contacts the registration server the key ...more >>

Hi, I want to know if there is an easy way to do update a column of a row in DataTable. ...more >>

I have created a little C# project that produces a .DLL that is exposed as a COM object using the regasm utility from the .Net Framework. Our formal build process is all VS 6.0 C++ and VB, no .Net development components installed at all. The build is breaking on the C++ code that tries to ...more >>

Tabpages and Imagelists - I want to align the image to the left so I can display some text... All, I have a number of tabpages and on each tab page I currently have an image and some text, now ATM the image is on-top of the text, I would like to align the image to the left, is there an easy...more >>

I have a textbox. If I write something in it and then press enter I want a specific method to be executed. How can I add this event to textBox? Thanks. Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETEN...more >>

It's a minor thing, but I'm confused on the increment operator in a for loop. I think most usually write: for (int i = 0; i < something; i++) { .... } But, in my book (from MSPress) it shows: for (int i; i < something; ++i) { .... } From what I remember in my readings, the ++i...more >>

No Cobol.Net yet? Wha?!? Anywho, hope someone is familiar enough with Cobol to help me out here. I have some files written by COBOL applications that contain COMP-3 fields (on a mainframe) that I ftp up to a network folder for processing in .Net. Anyone know if it's possible (and how) to ...more >>

After a call to the Reset() method of a DataTable and a call to the method Datasource of the datagrid for display data of the DataTable i cannot see the rows on the Grid. Help me please. By Simon. ...more >>

Hi, I have written a webpage, showpict.aspx, in C# that will fetch a jpg-picture from a database and display it thru a html-tag like: <img src="showpict.aspx?id=23"> where the 'id' parameter tells what picture from the db to display. Problem is, if the user e.g. rightclicks the pict...more >>

First, I'm extremely new to C# and the Microsoft Visual Studio IDE. I am in the middle of writing a small web application that communicates to a database server and sends out email confirmations. I've got the database connection going okay, but I'm having problems trying to find a good way t...more >>

Hello, I am a novice to regularexpressions and trying to build a regex for a string that consists of alphabets, special characters but no digits. Regex("^([a-zA-Z]!@#$%^&*?).{8,20}$") Does not seem to work for some reason. Could anyone help, pls. Sam. ...more >>

After a call to the Reset() method of a DataTable and a call to the method Datasource of the datagrid for display data of the DataTable i cannot see the rows on the Grid. Help me please. By Simon. ...more >>

If I subclass TextBox and add my own new properties, how do I set their default values? I tried assigning them in the default constructor, but they still show as bold in the object inspector and they still get assigned in the code-behind file, neither of which would be the case if they had ...more >>

Hi, Maybe I'm missing something: <begin code> MessageBox.Show("a = " + a + ", b = " + c + ", c = " + c); //message 1 double top = (Math.Pow(a, 2) + Math.Pow(b, 2) - Math.Pow(c, 2)); double bottom = (2.0 * a * b); MessageBox.Show("top = " + top + ", bottom = " + bottom); //message 2 ...more >>

I have a solution that contains three projects. Using the Property page, Startup Project I've defined which projects to start and the order. When running, each project presents a form or a task bar icon. Currently, when I exit any of the projects the other projects are shutdown. I would like ...more >>

Hi All, I'm writing an app using WebRequest in csharp. I need the app to respond to the host PC moving from one network to another, e.g. taking a laptop home after work. Currently the WebRequest.Proxy is always picked up from the work network settings, so that the GetResponse method throws ...more >>

I've encountered a very bizarre situation: a form's Initialize Component is not called and excution doesn't reach the code immediately following the call to initialize component. So in the following code sample the fist message box appears but the second does not. A few quick facts: - The form...more >>

Anyone knows how to add web reference in C#, when the internet need authentication. The credentials for proxy is asked and I pass the information. But after all, I got this message: "The underlying connection was closed: Unable to connect to the remote server." Tks!...more >>

I'm working on a project that entails calling into a legacy C DLL. The original unmanaged test code (ancient C++) works OK, but after generating managed C++ shells for calling the DLL via C#, performance has taken a hit. I can't explain it--Smaller scale tests run OK, but stressing the code cau...more >>

is there an easy way of making a date appear in this format: yyyy-mm-dd ? thank you...more >>

Given following code to instantiate object, how does one: 1) check a specific objects health - running, dead etc. 2) call a method in a specific object in the multiple object set 3) terminate a specific object foreach ( DataRow ConfigRow in DSWTG.Tables["TurbineConfiguration"].Rows ) { ...more >>

hello folks, is there a way to retrieve the highest value in the ArrayList? let say i have a value in the array: {1, 4, 15, 3, 7} it should return a value 15 as the result. i've looked at the Sort Method ( ) but doesn't seem like it can do the job or am i missing something? ...more >>

Hello, I'm trying to capture when users press the tab key. This is scrolling through different fields with tab is broken in my form. I'm not sure why, but it may have something to do with the fact that the Windows Shell is creating the form (it is defined in a DLL). I copy and pasted the form's ...more >>

Thank You. ...more >>

For example, I have a public enum: public enum MemberType { MEMBER_NORMAL = 0, MEMBER_VIP = 1, MEMBER_SUPERVIP = 2 } Is it possible to use a foreach (or for) statement to list out all available enum elements? e.g.: foreach (string s in MemberType) ????? Thanks ...more >>

I have a string variable, let say: string s; and I need to assign several lines to this string variable, so: s += "rept ioruet uroeiut oirueoi uorieuto iruetoi reoituroeuti roeutoi ureoitur oieutoire"; s += "uytuy tuytjghjlkg fhjlkghlkjhm fhm mhm gfmh mgfh rtiy triypotiry"; s += "iuygoie...more >>