Hi, How can I save the text edited in a richTextBox into a field of an Access table. I have an error using the following code: OleDbCommand toto = new OleDbCommand("UPDATE Table1 SET Field1 = '" + richTextBox1.Rtf.Replace("'","''").Trim() + "' WHERE id = 8" toto.ExecuteNonQuery. Field...more >>

I'm using TCP/IP to send a Bitmap object over Sockets. This is my first time using C# at all so I don't know if this is the "right" way to do it. I've already found out several times the way I was doing something was really inefficient and could reduce 10 lines of code with 2, etc. For reading...more >>

Hi, This gives me a runtime error that it is an invalid value. I tryed some other keys with same result. However I tryed some function keys and they work (whell I did not test if it work, I did test if there was no exception). Are there limitations or do I do something wrong here ? cance...more >>

Hi, I wasn't happy with the customisability of the standard Windows form, so I decided to implement my own. Basically what I did was extend a borderless form and add my own borders and caption bar to it so it looks and functions like a normal bordered sizable form. However the only thing I ...more >>

Hello there. This should be very simple for someone to solve. string s = System.Text.RegularExpressions.Regex.Replace( "King Henry Viii", "\bViii\b", "VIII"); Console.WriteLine(s); I think the above code should write out the string "King Henry VIII" (with capital I's), but instead it w...more >>

Hi there, Is there a syntactically cleaner way to do this: if (!(MyObject is Whatever)) { // ... } Thanks. ...more >>

I have been asked to write a ..NET Windows app using the 1.1 framework. I have both 1.1 and 2.0 on my PC. When I create a new project in Visual Studio 2005, it shows initial namespaces under references (System, System.Data) all of which are version 2.0. How can I tell my project to use on...more >>

I'm trying to write new stream from string and i can't figure out why my memory stream instance is null after i have writen to it with stream writer. Here is an example. MemoryStream stream = new MemoryStream(); StreamWriter writer = new StreamWriter(); writer.Write ("my string"); at...more >>

I'm curious as to if .NET provides any direct means to modifying its own grammar? e.g., if say I want to had some "features" to C# which can easily be reinterpreted back into the original C# but I do not want to have to write a full blow parser just to change some simple thing. Lets suppose...more >>

Hello, I'm trying to speed up a piece of code that is causing performance issues with our product. The problem is we are using serialization to convert the object to a string, this is costing us performance degrade. Does anyone know any better way to archive this which just not degrade perf...more >>

I have a webservice that returns data from a database. Our services (the clients) have been blowing up because of illegal character problems. Is there anything I can do on the server side to work around this problem. I'm OK with deleting all the "bad" characters. I have a couple DTOs that...more >>

within a loop i am building a sql insert statement to run against my (programatically created) mdb. it works but it seems unreasonably SLOW! Sorry, dont have the code here but the jist is very standard (I think!); e.g: # get connection loop { build sql (35 fields to insert) ca...more >>

Hello. Is there a method in the .NET class libraries to know if a given file is binary or just plain text (ASCII)? Thanks in advance. -- ...more >>

Is there some way to export an event log to a .evt file? I ask because what we're trying to set up is a really easy way for a user to email the contents of our event log back to us in the event of some problem. Emailing isn't a big deal, the SmtpClient class is a breeze, and working with th...more >>

Hi all, I've got a DataGridView bound to a DataTable, and I need to make some of the columns into ComboBoxColumns. I've tried some of the solutions listed here, but I can't seem to make them work. They might not be the solutions I'm looking for; I just want to have a few arbitrary values...more >>

I am trying to add new record in database. There is no compile error but program is not adding any record to database. Hot to fix it? This is my code: OleDbDataAdapter odbAdapt; DataSet dsObject= new DataSet(); DataTable dtObject; string SQL; string ConnStr; int BrojSlogova; ConnStr =...more >>

Hello, I am creating a web page using c# and asp.net. I am trying to populate a list box by reading text from a file. The text in the file has leading spaces in order to show a hierarchy of the items. I would like this formatting to show up in the listbox, but it seems that strings are trim...more >>

While translating some VB code to C# (both .NET 2.0) I ran across the following line of code: sResult = m_oMaintain.Execute( sCommand ); sResult and sCommand are both strings and m_oMaintain is an object. The code is not compiling in C# because C#, it seems, does not have a definition for E...more >>

I've recently 'discover' the wonders of custom attributes and reflection. There's one aspect that has stumping me and I've been unable to find samples in the docs or on the web. I have fields in a class which have zero, one or more custom attributes associated with each field. I'd like to get ...more >>

Hi People, Please I need your help. This code run a thread ok but Not close later. thanks... private void RunServer(int aPortNumber) { _listener = new TcpListener(IPAddress.Any, aPortNumber); _listener.Start(); _ServerThread = new Thread...more >>

If I code as follows try { \\ do something } catch (.....Exception) { throw; } What should happen? A test program isn't doing what I had expected it would do. Hence this question. Adrian. ...more >>

If I have "using System;" at the top of my code, why do I also need "using System.IO;" or "using System.Xml;" to reference attributes of System.IO and System.Xml? In other words, why can't I just use "using System," and then the following? (I get a compile error if I try). IO.StringReade...more >>

Hello, I posted this morning and recieved no responces., so I decided to simplify my question. How do I stop an exception from being thrown after the first run through of the while clause: private void InsertionSort_Function(uint[] IntCard,int length) { for (int j = 1; j...more >>

I'm using the free pdf creation library pdfsharp(www.pdfsharp.com) to create a set of pdfs. This library makes heavy usage of System.Drawing and GDI+ I first implemented the pdf creation utility in a class that I than triggered via a simple NUnit test, a console application would have suffice...more >>

Hi everyone I am just trying to find how to implement Indexers... or at least that is what I think I want to implement! Very basically, in my database I have a table of T_Hotels which has many entries in T_Rooms. In my C#, I would like to be able to go: // Get a new instance of the Hot...more >>

Sorry for the cross-post but I didn't know which group would be better.....anyway: I have a small app that I would like to release soon. It was written in C# and .NET 2 (using things like DataSets, etc). I've literally got less than a month into development and I'm almost done. I don't ...more >>

Hello there - I've got the following problem: my C# app (an .exe using different dlls) has a different behaviour regarding the way I launch it. The right behaviour when I press F5 from Visual C# Express, and the wrong when I launch the exe file from the bin\debug directory. What's the differen...more >>

I have had no replies to my previous post so perhaps I didn't write it good enough. Please excuse new thread but i wanted to break from the last thread hopefully this thread will be better. Very simple. I would like to create listviewitem's for display in a listview control. The listview i...more >>

Hello, I just started working with Introduction to Algoriths from MIT Press and my goal is to rewrite them in c#. This is just a learning experiance. The following code: INSERTION-SORT(A) for j =E2=86=90 2 to length[A] // 1 Based Array { do key =E2=86=90 A[j] i =E2=86=90 j - 1 while...more >>

Just joined this group and wanted some advice on how to get the word out about my companies job opening. We have done Monster and Dice and as you would expect, not much success in candidate quality. We are a Boston, MA based company working in the Banking/Financial world provided the latest in...more >>

I would like to buy a book about ASP.NET2.0 with C#. I have chosen two book , - Professional ASP.NET 2.0 by Bill Evjen and - Pro ASP.NET 2.0 in C# 2005 by Matthew MacDonald I don't know what the book I should to choosed or have other book that better than this two books. Please tell me...more >>

Hi, I am trying to convert the following c++ code to c#. BYTE* pbmp = (BYTE*)malloc(lSize);; myFunction((long)pbmp); Can anyone help? Many thanks. ...more >>

I have, the following question: I have a WindowsForm with ProgressBar progressBar1 and Button button1. After onClick event on button the following method executes: button_Click(object sender, EventArgs e) { DatabaseOperations.ClearDatabase(); } where ClearDatabase() is static met...more >>

Hi, I've got a soap message as a string and would like to post it to a webservice (in C#) asynchronously: For example something like: string soap = "<soap:Envelope >...<MyMessageBody>....</soap:Envelope>"; I use the HttpWebRequest object to send off the message. But I think it does so sync...more >>

Hi, I will outline what i'm trying to do here, and would really like to here your suggestions of how I can do it please. I have some code which finds the open internet explorer windows. I would like to display a form that allows the user to choose one of these windows. I have generated an a...more >>

I'm a bit confused about the differences of these two commands (what is the right word for commands here?) when used to enumerate the contents of an array. The below example uses both foreach and for to enumerate the contents of the array. Also as well as explaining the differences could you ...more >>

Hi How do I get/set the value property of the combobox??? (similar to value field in the html below <OPTION value=1>Blah</OPTION> <OPTION value=2>Foo</OPTION>) Combo.Items.Add ... ? What kind of object have I to use ? Thanx ...more >>

Hello, I am parsing some main arguments and calling to functions according to it. Is it possible not to define the called functions as static? How can I design it better? Thanks *** Sent via Developersdex http://www.developersdex.com ***...more >>

Hi all, This is an excerpt from the Book "Programming Microsoft Visual C#: The Language": A function evaluates to the return value. When a reference type is returned, a function is available as a left- or right-value of an assignment. Functions that return a value type are restricted to ri...more >>

Hi, First, thanks for any time you spend helping me, I'm at a loss. I'm not bit-savvy, so I apologize if this is extremely simple, or I am going about this the wrong way. I am trying to take a byte array and extract some information from that array, and convert it back to a hex value. Fo...more >>

Hi and Happy Holidays, While typing in a member function an errant finger triggered a bit of code snippet that throws a "not yet implemented" exception if the member is called. It happened three times in two days but I haven't been able to duplicate it purposely. Just what is the keying that...more >>

Hi i have a string variable which can take one of a set of many values. Depending on the value I need to take different (but related) actions. So I have a big if/else-if construct - but what is a better way of doing this? if ("control" == commandString) { } else if ("execute" == command...more >>

If I place a table or graphic at the beginning of a Word document, does the wordDoc.Paragraphs[1] returns that? ...more >>