I'm assembling text attribute bytes (upper and lower nybbles) and have the following line of code: ushort a = (ushort)((csbi.wAttributes & (ushort)0x0F) | (ushort)((ushort)value<<4)); Here value is an enum of base type ushort, csbi.wAttributes is a ushort... so why is everything cover...more >>

I have something like this: socket.Receive( buffor, 0, buffor.Length, System.Net.Sockets.SocketFlags.None ); string tagS = System.Text.Encoding.ASCII.GetString( buffor ); // in tagS I have always tagS "<s i='404F8C46' c='1'>" , only i is changing tagS += "</s>"; // this doesnt append ...more >>

How would I be able to process keystrokes inside a Panel? The panel class has no KeyDown event, and I even tried to make a custom Panel derived from Panel, and used its OnKeyDown to create an event, but it doesn't fire when a key is pressed! I'm using this panel on a control I'm making, and I'm draw...more >>

Hi, folks. I'm just learning ASP programming in C# using Borland C# Builder I'm having problems, which I think are some sort of configuration issue, with .NET framework or IIS. I'm using XP Pro on a standalone PC. I use C#Builder to create a new ASP.NET Web application. It creates vario...more >>

Hi! I'm trying to validate a password by means of a regular expression. I've found the following: ^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{4,8}$ which should guarantee that the password length is between 4 and 8 characters and that it contains at least 1 lower case letter, 1 upper case letter and 1 nu...more >>

After looking at the documentation for the Queue class I became disappointed, or maybe I just did not see what I want. Is there any way to add a batch of objects to the queue similar to the AddRange method on other collections, or do I have to manually add them one at a time? I don't mean in t...more >>

Hello Experts, I want to write a chat room using C#. Does anyone in here know any articles that teaches you how to write a chat room in C#? I tried search in google, but could not find what I want. Thanks in advanced, Benny *** Sent via Developersdex http://www.developersdex.com *** D...more >>

I am seeing something I don't understand. I am creating a new file that does not exist. After instantiating StreamWriter passing the file name then FileInfo.Exists is true. Great. If I access FileInfo.Exists before the StreamWriter it is false. Great. Now if I access FileInfo.Exists before and...more >>

Hi Group, Assume we have an xml as: <GrandFather> <Father> <Son/> <GrandSon>'Tim'</GrandSon> </Son> </Father> </GrandFather> How can I get the type of every element during a search by XPath query in above xml file ? Let's ...more >>

Hello How could I use msgina.dll in C# The reason of using this dll is re-calling the Window Named WINDOWS SECURITY (also can be accessed by pressing CTRL+ALT+DEL keys) in a winform.I 've searched mfc in google but i do not really understand. How could I do this in C#I look forward to hearing...more >>

I need a regular expression that will match a string (retrieved from a TextBox in the UI). I need to verify that the string represents a fully path to a file. I know these things can get pretty complex - so I'd be happy to keep it simple by having the expression simply verify the text entered ...more >>

I have written an application in C#, using VS.NET When debugging the program, break-points etc. work find, but if I hit any unhandled exceptions, I just get an Error box, and no chance to jump back to the faulty code. The error box talks about invoking Just-In-Time debugging, and I think I've do...more >>

I will change listBox's scrollbar,I think add a image to scrollbar,can you help me? ...more >>

Hi, I'm stuck on a reflection problem. Here is an outline of what's happening // In A.exe: class A { // ... System.Type t = System.Type.GetType("A"); // Works fine } // In assembly B, used by A.exe: // ... System.Type t = System.Type.GetType("A"); // Returns ...more >>

Hi all, is there an equivalent to C++ 'showpos' for C# ? This format generates a '+' sign in non-negative generated numeric output. Thanks, Peter ...more >>

Can I export a data list from Data grid of windows application into IE = HTML page?? If so, how to do it.=20 Million Thanks=20 Eric...more >>

I have seen some posts here about asynchronous ICMP and I am having a little problem with threading. Here is what I am trying to do. I have a large number of hosts to ping. Each host is a class, that has a method running in it's own thread. I send out 10 ICMP packets and call the socket.B...more >>

I just started using ASP.NET yesterday (literally). I've been using ASP for some time, though This code is in mypage.aspx, and it works just as I intended, showing each table in a separately rendered grid for (int i = 0; i < 5; i++ { // iterate through dataset table grd0.DataSource= dsM...more >>

I'd like to retrieve a list of files in a directory, but I don't want the full path included in the name (i.e. I want "myfile.dat" instead of "d:\foo\myfile.dat"). Directory.GetFiles returns the full path of all the files in the directory. Is there a way around this problem? ...more >>

Having come from C++, I don't understand why C# does not get the same type of "Edit & Continue" support as VB.NET is scheduled to receive. Is it perceived that we can somehow "live" with it as opposed to VB programmers?...more >>

Visual Basic 6 has a debugger window where you can see the value of a variable during runtime with "debug.print". Does C# have something like this? Thanks. ...more >>

Does a SortedList have a more limited ability to cast that an ArrayList? I have an array of objects that I store in an ArrayList. I use an ArrayList because of its flexibility in adding and removing items. I use the array to populate a list box, so I use the ArrayList CopyTo() method to get a t...more >>

I have a parent page that has some form fields. The user can click a link on this page and open a child pop-up window to add a value. Once submitted, the child window is closed and the parent needs to be refreshed to update the value just entered. However, I do not want to lose the values already...more >>

Anyone seen this error? Any workaround/fix available? Thanks. James P ...more >>

hey up everyone, Is there a workaround for the cause of this warning in .net 1.0? (other than upgrading to 1.1, which my client doesn't want to do) warning CS0679: Other languages may permit the internal virtual member <member>' to be overridden Failing that, can you disable warnings as y...more >>

Hello everyone, Can anybody tell me if it is possible to call a javascript function in the html from a embedded winform control ? Note. this is not ASP, just a plain html page with a javascript function such as function Hello(name) { alart("Hello "+name); } and then in the body of t...more >>

I am receivng the following error when I add web reference to my windows application Custom tool warning: DiscoDodeGenerator unable to initialize code generator. No code generated I believe this is causing other errors in my code because I do not see any reference to my localhost or web service...more >>

Hi I have one problem with my LLBGEN assmebly. When I want to compile my TestProject I have that error: "Error: The dependency 'SD.LLBLGen.Pro.DQE.SqlServer.NET11, Version=1.0.2003.2, Culture=neutral, PublicKeyToken=ca73b74ba4e3ff27' in project 'TestApplication' cannot be copied to the run ...more >>

Any ideas on what the best way to do this is: [Flags] public enum EOptions { op1 = 0x01, op2 = 0x02, op3 = 0x04, op4 = 0x08, op5 = 0x10, op6 = 0x20, op7 = 0x40, op8 = 0x80, } public void F() { EOptions e = EOptions.op1 | EOptions.op3 | EOptions.op7; EOptions...more >>

Hi, I used a dropdownlist in an ASP. I try to assign a db field to the SelectedValue. but got this error: Exception Details: System.InvalidCastException: Object cannot be cast from DBNull to other types. <asp:DropDownList id=edit_Province runat="server" SelectedValue='<%# Convert.ToInt32(Data...more >>

Hi All, Best way to implement the following in C#. C++ Code: ClassOne {int a;} ClassTwo{int b; ClassTwo *pClassTwo;} I can do the above in C# by using ArrayList as fallows: ClassTwo{int b; ArrayList objClassTwoList;} But is there any performance penalty in coding this way or else is there any...more >>

Hello I've managed to list data from a database and present with a datagrid like this: ProductID Productname 65 A 34 B 11 C problem now is that when I doubleclick on a row i need to pass the value for selected Product...more >>

Just out of curiosity, are any big name developers / apps using the .NET framework to develop? Is Microsoft itself using the framework to develop any of their products Thanks!...more >>

Hello Group, I've dataSet with 3 tables. How to make Sql Querys with 1.join and 2. sql function min, max : - Select a,b,c from tab1 as t1 join tab1 as t2 on (t1.id1=t2.id) where t2.id2<100 - Select a, max(b), min(c) from tab1 group by a on the DataSet object Thx PawelR ...more >>

I've created a class to SMTP EMail from web apps, but find that I cant use this class in a windows app. The "Using System.Web.Mail" gives me an error. Is there a quick way to utilise this class from a windows app? ...more >>

Please help can I specify a string with mutiple update statements as the command statement using the .NET Managed Provider for Oracle? Or for that matter is there any way to do so from within c# into oracle Thank you Sa ...more >>

Platform Invoke Resources In our efforts to make the .Net platform continuously easier to develop for we have reviewed developer feedback and help requests from Product Support Services, Microsoft.dotnet newsgroups, and other blogs(http://blogs.msdn.com/brada/archive/2004/02/06/69095.aspx)...more >>

I had this post that never got a response: I have a base class A and a derived class B and need to create a new B from an existing A: A a = new A(); B b = new B(a); I've thought about this: A a = new A(); B b = B.GetFromA(a); I only want a shallow copy, and I DON'T want to copy eac...more >>

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncscol/htm l/csharp02172004.asp Can that possibly be right or is that chart mislabeled or am I just interpreting it incorrectly? ...more >>

Hello, I am looking for some opinions the way that the: string.Compare method returns results in the .NET Framework. I'm building a strings object that inserts strings in sorted order so I would like to know your expectations about this topic. Example 1: In the following, each line is a si...more >>

Scenario: I have a checkbox, if flag=1, check it(as usual, no extra coding is needed), otherwise keep old status and give Message to user. Any way to do it? Thanks in advance! ...more >>

To All Networking/.NET/C# gurus out there: Can anyone explain the behavior of what's happening under the covers when the following client intereacts with the following server (code below)? This code is basically a stripped down version of a system I'm trying to put together that is having majo...more >>

Hi.. I was hoping someone could help me understand whats happening in my code, it works fine, I just don't understand one part of it and would like to.. I've pasted some c# code and xml below.. When I open the xml file, it calls myTest and passes in the xmlNode and is recursive in calling itse...more >>

Anybody has seen DTD or XSD of web.config and/or app.config? Alternatively, is there an example of the most extended app.config file you can have? (to infer a schema) Thanks for your attention/help. ...more >>

I was just performing the following inorder to gain a deeper understanding of reflection and exception handling, so don't anyone go breaking their backs to help me. That said I cant figure out how to accomplish something. I was trying to write a function that would except an object (in this case ...more >>

I am just beginning C# after being in Powerbuilder for many years. I have a web application that displays information on a datagrid. After a user clicks on the datagrid, a new webform to displays with more detailed information about that record. There are 25 fields that need to be displa...more >>

Is there an event that fires globally for application whenever some window is showing? I want to know about any window displaying in my application ... ...more >>

I am trying to use the Interop assemblies with Outlook. If Outlook is waiting for a login when I call something like new Microsoft.Office.Interop.Outlook.Application(); it will hang. No error or exception, just hang. And I can't seem to tell if Outlook is in that waiting for login condition ...more >>

hy, i have to communicate with multimeters via IEEE-port / gpib-drivers. all devices are found without causing any problem. data is read by using "ibrd (ID, data, length)". the data is transmitted in an ascii-code. during my tests, i found out that using a string or an array of chars for ...more >>

The following code does not seem to work in a Windows service. Is there anyway I can make it work? Stream inStream = Console.OpenStandardInput(); if (this.archiveName != null && ! this.archiveName.Equals( "-" )) { inStream = File.OpenRead(archiveName); } if (inStream != null) { if (this....more >>

This is my first attempt of network programming, I would like to client to receive information from a server (another internal PC) in the firm, so one is a publisher and another is a subscriber. What exists in .NET that I could use to achieve this. I have seen some socket programming examples, ...more >>

Hi all I looking for a bit of help. I have this app with a datagrid that needs to add rows or edit cells at a rate of about 100 rows a second (15-16 columns in a row) with data received through a socket connection, (no user edits will be allowed, it's strictly a viewer) I've used static dat...more >>

I use Visual Studio .NET 2002 for developing such a program (... public Population(int quantity, int gntpLength currentPop = new Person[quantity] for (int i = 0; i < quantity; i++ currentPop[i] = new Person(gntpLength) // * Console.WriteLine(currentPop[i].ToString() + "\n") ...more >>

Hi, My application shows two seperate forms. I need both forms to be visible. Form one is kind of a paret form so it has a handle to form2. So when the user activates form1 a try to do from2.BringToFront but that causes me to loose focus. Yes I can think of a trick to send focus back to for...more >>