Im puzzled by a data validation behavior I don't understand, related to enums. Stripped down scenario: enum Type {One=1, Two=2, Three=3} Type var1 = (Type)40; These two lines of code don't cause a compile error. In VB, trying to assign a value to a variable of an enum type does cause a ...more >>

Hi, I have a NNTP client application. How is it possible to convert = character that I received within a "Content-Type:" into the specific = file format specified in the content type? I tried to copy and paste the data I received, but it obviously did not = work :-) Thanks Mike...more >>

hi In vscroll bar I want to differenciate between Upper or Lower scroll buttons. Just say when user press top button a message is displayed "Top is pressed" and when lower button is pressed message is displayed "Buttom is pressed" is there any event to do this? ...more >>

I know this forum is for the language but i haven't found a Visual C# forum so I thought I would ask my question here. I have Visual C# Standard 2002 Edition. I have downloaded Framework 1.1. I have also downloaded several component libraries and tried to add them to my toolbar. In most ca...more >>

Dear all, I have a WinForm in C# and has one button to popup another modal window for user to key in wild card search against a database? Once found the user would double click on the list and this would call a populate method on the original WinForm. I am confused as to how to implement thi...more >>

Hi everyone, I'm having trouble with the keyword this inside a class. The following code is an example of the problem, not what I am actually doing. public class C { public C() {} public string s; public void Function() { C c = new C(); this = c; } ...more >>

How can I do so? Can I write a windows service that will run a bat file when the system shuts down? I want to write a service because I can create a schedule task by Windows Scheduler only when the system starts up. Thanks! ...more >>

Hi. I have a database from which I am reading some integers into my C# app. The problem is some of these DB values are NULL, so obviously an error is thrown when I try to read them. Is there a standard way of representing a NULL value type? Anyone got any tips on this? Mike ...more >>

Hi, In my Win app, I'm using delegates because the process that'll be running is time-consuming and it requires parameters. The only problem I'm having is that the lines following the BeginInvoke (lines that depend on the outcome of the method) are being executed while the lengthy process is bei...more >>

Hello, According to the MSDN documentation, FieldInfo.GetValue throws a NotSupportedException if “A field is marked literal, but the field does not have one of the accepted literal types”. What are the accepted literal types? What are the unaccepted literal types? *** Sent via Devd...more >>

I'm using a C++ dll and need to allow unsafe code because the dll function takes char *. I am using Visual Studio.NET 2002. Everything I've seen says to go to the project properties page, then the build properties page and allow it there. For some reason, my project does not have a build properti...more >>

Hi, I am building a custom wizard engine in C# following the example in "Mastering Visual Studio.NET" by Griffiths, Flanders and Sells (pg 304). Unfortunately, I'm having several problems that the book isn't helping me overcome. (It is a good book, but O'Reilly hasn't made code available and so ...more >>

I'm using a C++ dll and need to allow unsafe code because the dll function takes char *. I am using Visual Studio.NET 2002. Everything I've seen says to go to the project properties page, then the build properties page and allow it there. For some reason, my project does not have a build properti...more >>

It appears to be a flaw in the specs, or I did not understand how it works. 7.11.2 User-defined conditional logical operators says that in order to overload conditional logical operators && and || (which cannot be directly overloaded in C#) you need to overload the true and false operators and ...more >>

Hi everyone, I'm having a problem that I don't know how to sort. I am trying to execute a number of SQL stored procedures in a single transaction. However it always throughs an exception saying that the "Thread was being aborted" I really need to be able to execute these procedures in a sin...more >>

Hi all, I'm trying to get a full directory listing from a remote machine. Anyone know how? Also, is it possible to read a file from a remote machine, like a ..TXT file or a .XML file in a specified directory without using the C$, D$, etc. or other shares? Finally, what rights would I need t...more >>

Hi. I'm working with an app that uses exceptions for control flow. These are code blocks where exceptions are thrown/caught regularly. A couple hundred exceptions occur per hour and they're caught close to the point of origination. I'm trying to decide whether to refactor... What is the cos...more >>

Hello. The MeasureString method is quite slow so I am wondering how one can efficently draw a string in a growing or shrinking rectangle. In other words; having a huge rectangle the font size should be for example 100; having a small rectangle the font size should be 8. Any ideas? Thanks a...more >>

Hello, I want to read a text file which contains French charactor, then modify some of the sentence, save it as a new text file. But I found the new text file lost all the French charactors. Anybody can help me? Thanks, Yongjian My code: StreamReader sr = new StreamReader(stSource,En...more >>

Good Morning to all, I have a bunch of XML files that need to be readed inside the same DataSet (each XML represent a single table). In the event of a large (some megabytes) file, what is the best practice to read them into the DataSet via the ReadXML() method? Thanks, sorry for my newbie...more >>

I have an windows .NET application. I want to click a button to start outlook express to send email. Not only start Outlook express, but also pass information to fill int the subject and content field. Thanks a lot. David ...more >>

i konw a type(no class),can i get this type`s instance list? ...more >>

Hi, I've really been struggling with this. How do I make a form resizable with FormBorderStyle = None? I've had problems trying to get the form to start resizing by following the mouse position(after the mouse is at the edge of the form and starts to move out of the form with the mouse button d...more >>

Is it possible to convert an unsigned long to byte array. For instance, unsigned long = 23480923 unsigned long longNumber; longNumber=23480923; // in binary = 1 0110 0110 0100 1010 0101 1011 // so i want byteArray[0]=0000 0001 , byteArray[1]=0110 0110 , // byteArray[2]=0100 1010, byteArray[...more >>

Hi, I have a windows form c# project using a typed dataset. When a row is changed i need to update the revision column of the dataset, before calling the dataadapter.Update to update the database. I thought maybe i could use the row changing event of the dataset to add one to the revision col...more >>

I would like to have the value entry in the Hashtable to be a Hashtable itself and the value data in the second hashtable to be an ArrayList. I would like to store the following type of data date : time : open high low close ... .... I have intra day stock data. I would like to qu...more >>

If I create a collection and add members using the Add() method, is is guarenteed that the members will be returned in the same order that they were added, if: i) I enumerate using a foreach loop? ii) I index from 0 to Count-1 using a for loop? Cheers, Mike ...more >>

Iam trying to read an xml file from a website and i get junk characters. But when i open the same file in browser everything is fine. here is the snippet of the code WebRequest objRequest = WebRequest.Create("http://www.xvdabc.com/order.xml"); WebResponse objResponse = objRequest.GetResponse...more >>

Hi All, I wonder that why MS SQL query analyzer doesn't have similar= feature like the one in VS=2ENET studio, for example: when you key= in a table name, bring up all columns of this table to be choose= from=2E Can I do it with C#? what should be used to bring up those= list, context men...more >>

I need to show a litte advertisment window that remains on top until something happens. I'm trying to use .Show or ShowDialog but these windows go to back when I click any area of the back main window. I need some advice, please Carmen ...more >>

What is the analog of With operator from VB.NET in C#? ...more >>

I have made the following stored procedure with the following select statement select * from user select * from order, orderdetail where order.id=orderdetail.id I know I can uses DataReader class to get data from the store procedue. However, is there any way for me to use DataAdapter to get...more >>

Hi all, When executing the following, is it a copy or a reference thats copied to the array? SqlCommand cmd = new SqlCommand("w", x); myArrayList.Add(cmd); // A reference or a copy? The reason i ask is that I then want to go on and use the same va...more >>

Hi, Could someone please confirm the following? I think I have found a subtle .NET serialization bug. It occurs when object has a list of items containing another object of the same type and both objects have a non-static member reference to some other static object. In this case, I get a...more >>

Hi, I have an iteration to retrieve a number of messages from a server. = Within this iteration, I am using the following code: do { readBytes =3D base.GetStream().Read(received, 0, received.Length); string textToAdd =3D Encoding.ASCII.GetString(received, 0, = readBytes);...more >>

I have a windows service with a Timer which runs just fine on my Development machine, but the "timer_elapsed" is not being executed on the Production machine. same .exe on both machines. i'm writing events to the event log, so i know the dev machine is fine, but not the production machine. w...more >>

I'm trying to use the DrawText() method to draw some very long string text on the Panel with AutoScroll enabled. However, for some unknown reasons, I could not trigger the ScrollBar to show up. Here is the simplicied section of drawing code: private void panel_Paint(object sender, System.Wi...more >>

Does anyone know if a .Net installer app can be programmed to pick up any extra files that are not in the C# project and install them at runtime? Let's say I have a few images that are a part of the C# project. The installer project picks them up fine. Now say a user runs the installer and th...more >>

Using C#, I want to send a byte array to an unmanaged function with the minimum amount of copies. The array is input only and won't be modified (its copied on the unmanaged side). I'm currently using fixed byte *. My question is: Should I be using In byte[] parameter instead? Ref parameter?...more >>

Hi all I would like to instantiate an object from a string value. if, for example, i have a "Accounts.Account" class, how would i use that string to create that object? normally you would have Accounts.Account accObj = new Accounts.Account(); i would like to accomplish the same as the ab...more >>

I am coming from vb.net. I have seen that most variables need to be instantiated before using in c#, unlike vb.net. When you declare a variable and immediately set it's value, does that instantiate it? Since I never call the constructor (new xxx), I don't know that it does. Ex: int myInt = 5; ...more >>

hello, i'm writing a windows application in C#. i have a dataGrid that takes data from dataset that connected to sql stored procedure, and i have few radio buttons. i want that when ever the selected radio button chaged the data in the the datagrid will change also. i replaced the dataMemeber an...more >>

I have an ASPX page in which I am trying to bind a datagrid to a dataset pulled from Microsoft Access DB using code inline method. For some reason, the compiler is having a problem with 'using'. Any help here would be much appreciated. Thanks! Getting the following error: CS1519: Invalid toke...more >>

If I have a XML file, I can use ReadXml to load the file into DataSet. But if I have the whole XML string in memory, how to load this string into a new DataSet? Bill...more >>

One thing that has confused me is If I have a thread that is reading a file and would like to transfer the data to listbox which is the main application What needs to be done to transfer data from threaded space to main .. thanks...more >>

Hello I am new to this please forgive me if I dont explain this right but here goes, I hope you can help. I am building a site and on one of the pages I have Radiobutton List page. I am useing Visual Studio C# and I want to put the text for the buttons under them instead of on either side.. ...more >>

I have been asked to make a very simple messenger application to run on a local intranet. Having not designed anything like this before my first thought is to work out the trigger for the recieving of messages. All I can think of at present is sending a file to location on the hardDrive and gettin...more >>

I am using the following select statement in a web app where I take the cvalue in a text box and conduct a search of the database. "Select wo18 from workorder where wo9 = " + "'" + programText.Text + "'"; I want to search the text box to see if it contains % and if it does I want to use like ...more >>

Can any one of you let me know, how can I replace a pattern in an html file using C#? I have the contents of the html file stored in a string. I just need to replace some of the elements which have a similar pattern? ex: I have a field {Token = LoanNumber} in the html file. I just need to replace...more >>

Hi, I come from VB .NET where the InputBox function is ad hoc. Does any one knows if C# allows something like it ? Thanks and best regards Gilles *** Sent via Devdex http://www.devdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

I am building a website using C#, asp.net and SqlServer. I need to store a lot of images in my database. I need to store thumbnails but also larger pictures(when user clicks thumbnails a larger picture is displayed). For doing that I was told to store only the URL's. My problem now is how to dis...more >>

Hi, Is there any control (free) that has same functionality as IE to display the XML document without having to create a physical file? if using Webbrowser control (ActiveX control) I have to create a xml file and then use .Navigate(url) ... Thanks!...more >>

Really more of a VS.NET question than a C# question.... I have a couple files in my solution that I would like copied to the compile directory when the solution is built. How do I set it up so that everytime I build the solution these files will automatically be copied into the same directory? ...more >>

I am writing a C# app that has a Menu. Some of the menu items will have short cuts that do not exist in the Shortcut enum. I would like the custom shortcuts to appear on the menu but as far as I can tell there is no way to add a short cut that is not in the Shortcut enum. I have my on keyboar...more >>

All I'm trying to use the asynchronous method of reading a big file and outputting it but somehow it prints out the whole file before running the main routine. Here's the code. using System; using System.IO; using System.Threading; using System.Text; class AsynchFile { private File...more >>

Helloo, I'm planning on learning some asm since it has always interrested me (I know nothing of it yet, only .net and a little c++) and noticed that there are some differences in asm (MASM,TASM,HLA) so I'm a bit confused on where to start. My first impression is to go with the HLA since I hav...more >>

hello, i have an empty dataGrid which i want to insert different input for each cell. and i want to use the keyPress\Up\Down event. as iundestand after trying almost everything i know, is that when the cell has the focus on it, the dataGrid events don't effect it. so how can i write the cells to...more >>

Hi folks, I'm a Java programmer and now I have to use C# for a new large project. The language is the best I've ever seen. In some points it goes far beyond Java. I like that. But then there was a great dissappointments about WinForms. Compared with Java/Swing (skip the performance, I mean ...more >>

Does anyone know of any good VB6 to C# and VB.Net to C# convertors? Thanks for your help,...more >>

Hi, The following code snippet doesn’t compile with, helloworld.cs(25,39): error CS0246: The type or namespace name 'Library' could not be found (are you missing a using directive or an assembly reference?) Why can’t the “Library” namespace be found when its location “Company.Appl...more >>

Hi people, How can I set the first visible row by index in a DataGrid? Thanks -- Tom T....more >>

Hi people, How can I set a certain row as the first visible row in a DataGrid? Thanks, Tom T....more >>

Lee Wrote : Do you know if/how you can open a file say a txt or doc from a asp.net page that opens the file say a word document in word but not word within the IE browser. word as a application and will allow you to save any changes. this is for running over a intranet so if you click on the doc f...more >>