Hi, just looking for tips and ideas from the experienced. I wondered if you guys encapsulate the SqlDataReader so as to allow simpler code with less duplation, if so what does your code look like and what methods do you provide? My first effort is below, it's pretty sparce :-) using Sys...more >>

Does anyone know how to hard code the size of the paper being printed on? I am printing onto labels. Here is what I came up with, but I don't know what goes after the equals sign: printDoc.DefaultPageSettings.PaperSize = ; Thanks Chris ...more >>

I've a two part question involving picture boxes. Firstly, where is the picture? When I changed the image by using the Properties interface in VS, I browsed my system for a file and selected it. Sure enough, it works just fine in the program. When I move/delete/change the picture, however, the c...more >>

I have a program that launches multiple threads with a ThreadStart method like the following (using System.Net.Sockets.Socket for UDP packet transfers to a server): ThreadStart pseudo code: Connect Receive response Send Connect ACK Send request for wml page Receive wml page Disconne...more >>

Hello, I have made a main class. (main.cs) I also have made a menu class. (menu.cs) The reason that I separate is is just for the code overview. Now I want to see the menu calling from the main. The problem is is that I don't want to make an object... Is there not a way that I call the men...more >>

We have a project that we are developing in C# and one of our biggest requirements is that this be a single application but that many of the functions be customized depending on which cost center the user belongs to. In reality, what this typically means is that the user interfaces are the same eve...more >>

Hi I work in VB6 with Spread 6.0 from FarPoint can anybody show me an Example or any Exaples (C#) like this. VB6 Dim x, y as Integer GetText(1, 1, x) y = x * 2 thanks Chr....more >>

Hi, I want to get some data over http potocol within a csharp standalone executable. Can you help? Thanks, Rudy ...more >>

Is there something RePaint event? I have a couple of controls where I draw using control.CreateGraphics, BUT when I lost focus or do something inside the contorl (click ,etc) all graphics are disappears What the name of the event to handle in order to be able to repaint the graphics on lost? ...more >>

hello, why do we need explicit cast here ? short i = 0; //i = i + 1; // Cannot implicitly convert type 'int' to 'short' //i = i + (short)1; // Cannot implicitly convert type 'int' to 'short' i = (short)(i + 1); thanks, fleimeris ...more >>

Hi, Is it possible to integrate VBA within a C# MDI application? If yes, is there any exemples? What I am trying to do is let the user of my app add any child windows he would like to the MDI and customize their layout using VBA... Any ideas? Thanks JPRoot ...more >>

How to create custom event from code (as well as build property) set { } get { } Than kyou ...more >>

I all, I need a classroom equivalent the "Class List" of c++, necessary to recoup given of some hands tanks, Bruno ...more >>

Hi!, I am trying to add a value to a StringDictionary using its Item Property in C#. However this throws an expection as follows: Cannot implicitly convert type 'Component.TemplateComponent' to 'string'. The method I am using is as follows: private StringDictionary componentList = new Strin...more >>

Hi, I'm a newcomer to C# and I just wondered what the easiest way would be to read, write and modify an XML document from my C# program. If you could point me to a few good resources, it would be much appreciated. Thanks, David. ...more >>

Hi I have come across an apparant bug while using SmtpMail. The problem I have is that if a MailAttachment has a line in it that starts with a fullstop ( or period for those of you that speak American english ) then the fullstop is removed. This is an example of how I am using SmtpMail and Mai...more >>

i want to find a secure ftp library for uploading and downloading files. ...more >>

public class myClass { public myClass(string param1) { //HOW DO I CALL myClass() below?? myClass(); // THIS DOES NOT WORK } public myClass() { //Do something here that ALL constructors should do. Hence, I want to call it from } } NOT...more >>

What is the difference between declaring variables like ... string strSomething; versus String strSomething; My understanding is that the first uses a primitive type, and the second creates an instance of a String class. While it likely will never make a difference, is there reaso...more >>

A *lot* of our teams code is being deleted from the InitializeComponent() section of a winform, such as Grid settings, event handler hooks, layout settings etc. This mainly seems to happen to 3rd party controls such as Infragistics grids and menu bars and toolbars, but it also happens on native...more >>

public class BaseDALC { //Don't allow instantiation private BaseDALC() // To compile properly, I had to change this to "protected" { } } .... public class StatisticsDALC : BaseDALC { } error CS0122: 'AirportInformation.DAL.BaseDALC.BaseDALC()' is inaccessible due to its prot...more >>

I m querying the "Win32_DiskDrive" Class found at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/win32_diskdrive.asp to extract Disk Information. The missing part is the "n bytes used" for a selected device (ie. local hard disk). Where can I find this in c# ? Thank...more >>

I have a C# method that reads Binary data (BLOB type) from a database and returns the data an array of bytes (i.e byte[] outbyte = new byte[bufferSize];). The BLOB column is saved into the database by a C program (UNIX) as an array of "struct point" where struct point //C structure { ...more >>

I have a recursive program and a typical stackoverflow exception, i need modify the stack size , how can i do it? ...more >>

I'm loading a text file into a dataset. How can I simply display the table without having to navigate from the parent? thanks, TB ...more >>

Here's a very general programming question. I often wonder where to put the data validation when adding data to a struct or class, using its constructor. Suppose for example I got a class called Account with the variable Balance (float) and this variable shall not be negative. Shall I put this...more >>

Hi, I am trying to encrypt and decrypt an XML string. I have it encrypting but decrypting is a problem, somehow the XML is getting all corrupted. Any ideas? Im saving the XML text to a byte[] and then encrypting that using DES, and writing it to a file and the reverse for reading it ...more >>

I'm getting the error "Login failed for the user NT Authority\Network Service" I'm running this application in visual studio and the app is supposed to fill a datagrid from an SQL Server Db. Could this be an ASPNET permission issue? If so what is the correct configuration private void binding( ...more >>

Hello, My problem is that: I want to open a word document and writing something in it then save it.But it give me granting access error.and say that:To grant ASP.NET write access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. Click "Add" to add the ...more >>

Now that I have placed my class to be called as a service, the service does not know where the XML file for intialization ( deserilaization ) is. In my project I dropped the xml file in the bin directory. When I create and run the service I get my message that the file did not exist ( relative p...more >>

Hi, how would I translate this to c#? char ttext[100]; sprintf(ttext,"%2.2i %-.10s %8.3f",1,"Mark",123.24); [expected output] 01 Mark<6spaces> 123.240 Thanks...more >>

Hi group, is there a way that I can fire an event when a file gets written to a specific directory without knowing where the file came from (it comes from another program)? regards, Marco ...more >>

This message has been posted to 2 groups, one to the VB.NET group, and the other to C#. I am trying to decide which language to commit to for a large scale project. I am looking for the input of people who have gone through this process before. I am currently leaning towards C# solely becau...more >>

I have a string that I received from a web service call and I want to write it to a Stream. I cannot figure out how to access the string as a byte array and write it to the Stream. Any thoughts. I looked at Byte.Parse() but it will only convert a string represntation of a number and convert it to...more >>

I'd like to write a C# program that can change the login for a service that's already installed. I'm wondering if there is an API to use for that. I'm familiar with ServiceController, but I don't see a way to use it. Is it possible? If so, how should I approach it? Thanks, Steve Harclero...more >>

I've got some custom classes that implement IBindingList so I can bind them to a DataGrid. My test app works fine. So then I tried to format the columns - I have a function that creates a TableStyles object, formats all the columns, set the headers, column width, column order, etc. I tried ca...more >>

Is it possible for a Dataset that is added to a C# project to be based on a stored Procedure? Can I use either a OracleClient or Microsoft Oracle Client? Any help is appreciated. Jawahar ...more >>

Could someone tell me how I can read excel csv (comma separated variable) file using C#? I know how to do it by parsing each line myself. Since reading excel csv file in C# is a pretty common technique, I just wonder whether there is a class or a way to do it out there already. Thanks, An...more >>

Hello, I have the following code : ============ start of code ============ int number_of_children = 0; int some_random_number = 5; FileStream fs = new FileStream(@"c:\test.txt", FileMode.OpenOrCreate, FileAccess.Write); XmlTextWriter xw = new XmlTextWriter(fs, System.Text.Encoding.UTF8)...more >>

Hi all, I've some difficulties with the screen/form locations. When I fist set my location of the form and then the execute the show command the form is located at "WindowsDefaultLocation". Based on that I've created the following procedure: /// <summary>...more >>

How can I create transpanent textbox? I have control with pictureBox and textbox on it. I want to make textbox transpanent in order to see the image on picturebox. How to do it (if possible)??? ...more >>

Hi ya'all, I want to know how can I write multiple font text in a textbox , like it can be done in a rich textbox? I DONT want to use richtextbox control. I want to write multiple size text with multi colored and multi-font text in one single textbox. Very IMp for me to Do This. Regards, n...more >>

Hi, I have encrypted a bytestream with the SAME KEY and IV but both the output file is DIFFERENT. Shouldnt it be the SAME output for the same key and iv? Thanks. ...more >>

hi in VB, we can have Err.Raise vbObjectError + <app_number>, ... where "<app_number>" is some application-defined error number. This will prevent your error numbers from conflicting with system-defined error numbers How do I do the similar at c#? Thanks! ...more >>

Hi I have a c# project who load some other c# assemblies. I took one of the dll assemblies and ran the Dotfuscator and produce the output assembly. I added this assembly to the project (add reference) and the project doesn't compile. It doesn't recognize the new added assembly. Whats wrong? D...more >>

In C++ we had the ability to create a property page that could be merged into an existing property sheet to provide customization inputs for users. Can anyone point me to an example of how to do this in C#? I am creating a windows service which has dynamic parameters that the user can change. In...more >>

I am getting an unhandled system exception while writing to a RichTextBox. The process may run for a few hours or days before the error is generated The message is "Cannot access a disposed object named RICHTEXTBOX." A check of the stack trace indicates the error is from the DLL that controls writi...more >>

Hi, I have a question, and please I need a answer. How can I finalize a thread running with Application.Run (I need the message loop!!!) without call Thread.Abort?. I want to call Application.ExitThread in the same thread that it is running. So, This is my example and I don't know ...more >>

How can i obtain the language installed in the pc where my win app is running ?? Regards Marcelo López Infocorp Latin América ...more >>

Hi all, i'm developing a win app and i need to execute a .bat in the main constructor (in the codebehind). Which is the easiest way to do that ?? Could anyone give me an exameple ?? Regards Marcelo López Infocorp Latin America ...more >>

Hi Jon - Any chance you have a link to example opening an XmlDataDocument as DataSet, and then executing a sql command against it? I found the QuickStart sample app that loads books.xml and prints out structure, don't see how to run a "select * from books where name like '%blah%' against tha...more >>

I have an enum public enum MyEnum : int { X, Y } I have to do int a = (int) MyEnum.X; can i overload the operator or other means to do something like int a = MyEnum.X; ?? thank you! ...more >>

Hi, I've got an oledb parameter that I'm sending to an Access DB. The table I'm sending it to has a column called "Zone" of type String that has a default value of "". So I create the parameter with its name and dbType, and add it to an Insertcommand. I then set the Command.Text value. ...more >>

Hello. I´m using the ado.net provider from sourceforge for SQLite database. Till now everything works fine. But today i tried to enter some binary data into one row. Here´s my code: command.CommandText = "INSERT INTO _files VALUES ('" + obj.ID + "','" + this.GetTimestamp() + "',?,'" + o...more >>

I have a Windows Forms application where I normally had two threads running, with the second thread started by a main window. The second thread ran in the background just fine. Then I made some changes and I had the second thread initiated in a separate window ("owned" by the first thread)--a pr...more >>

public class A : IComparable { int IComparable.CompareTo(object obj) { return 1; } } /// <summary> /// <see cref="A.System.IComparable.CompareTo"/> /// </summary> public class Form1 : System.Windows.Forms.Form { .... } warning CS1574: XML comment on 'mynamespace ..Form1' has...more >>

I have implemented a container class with IList and bound it to a listbox. Works just fine, but if i then add a new item to my list, the listbox is not updated. Looking at the definition for IList it is clear that it does not have any events to tell the bound controlls about changes, but can i...more >>

I am trying to use an if statement to obtain a return value to use somewhere else in my program. Can you look at this code and tell me what needs to be added to the code to keep from getting an unassigned local variable sortParameter error public string SortParameter( ...more >>

How do I get the Immediate window back? It seems to be gone. Command window doesn't work. "View" menu items don't seem to show it Jon ...more >>

Hi all, Are the two snippets below equivelent, since they both only continue once the ShowForm method returns??? 1. delShowForm del = new delShowForm(ShowForm); //show form shows a form IAsyncResult asyncResult = this.BeginInvoke(del); asyncResult.AsyncWaitHandle.WaitOne(); this.EndInvok...more >>

I thought at first it was Microsoft Verified Programmer in regards to a qualification you can earn from microsoft. I remember in another conversation an MVP said it mean Most Valued Programmer or omething like that. If that is the case what is the difference between an MVP and a non MVP? Just won...more >>

I am trying to create a regular expression that will strip out all contents within my style tag. My string is this: <HTML><HEAD><STYLE type='text/css' MEDIA='print'>.MSGLINE {display:none;} </STYLE></HEAD></HTML>...more >>

Hi, I'm quite new to C# and to Object-Oriented Programming in general. I've managed to get my head around most of the concepts, but I'm still not always sure when to use objects. Sometimes it's obvious when to make something into an object (such as database access code), but I tend to end up ...more >>

I need some help. This regular expression strips out html tags "<>" /*Strips the HTML tags from strHTML */ Regex objStripHTML = new Regex("<(.|\n)+?>"); How would I construct a Regular expression to strip out one this code: <STYLE type='text/css' MEDIA='print'>.MSGLINE {display:none;} </ST...more >>

I'm a bit baffled by this: Console.WriteLine(true | false); Surely that's binary, not logical, OR... right? And then there's this: Console.WriteLine(true || false);...more >>

Hi I have a textbox, and I want to open the form that is writen in it I tryed some code, but it didn't work Form oform = (Form)System.Reflection.Assembly.CreateInstance(txtNomeEcran.Text) Can you help Thanks ...more >>

Hi, In Visual Basic there are modules where I can store public variables, Constants, etc. I have in a C# program a class that have a method to open a form. public void GUIGestaoAcessos(string sDBUser, string sDBPassw, string sDBDsn) { Form oform=new FrmSeguranca(); oform.Show(); //He wil...more >>

I am trying to add a label to a tab page tabMain.TabPages[0].Controls.Add(aLabel); and get an error "specified argument was out of the range of valid values. Any ideas???...more >>

Hi I have just started progrmming in C#...its going OK so far..only minor problems. I need to create and send an email from a C# prog. I use W2K, Outlook 2000/ IE/Outlook Express 6. There is an article on the MSDN site that suggests that you need to download some special versions of Office...more >>

I was wanting to write a Bluetooth application in C# that could 'talk' to my mobile phone. I have so far struggled to find any API/information on developing with C#. Can anyone help me or will I have to wait for the next release of the .NET framework?? Thanks again, David. ...more >>

Hi, I am writing a C# program and want to run a java application and pass it a filename as a parameter. I want to be able to write a method in C# that will run this Java app for me. Eg. I want to run the following command: java MyApplication filename.extension Can anyone help me? Man...more >>

I'd like to create a form by reflection. My forms' constructor takes 3 arguments so I have to use the 'long' CreateInstance overload as described below. Assembly assembly = Assembly.Load("<myassembly>"); object oForm = assembly.CreateInstance("<myform>", true, BindingFlags.Default, null, <myctor...more >>

It seems not unusual for me that I have special chars like < (less than) or > (greater than) in C# comments, especially in <code> sections. For instance, <code> if(a<b) c=3; </code> should be a valid comment, but the '<' in the if statement is treated as beginning of a new XML token and lea...more >>