Ok, while troubleshooting painting code, I am trying to see my canvas after each step. My OnPaint handler ultimately updates the screen with: pe.Graphics.DrawImageUnscaled(bmpCanvas, -scrollOffset.X, -scrollOffset.Y); So I tried writing the following, and calling it from the watch window an...more >>

Hi This such a poor question but..... can anyone tell me if this mouse glows or flashes red? Thanks for your help...more >>

Hello, Somebody ever tried to create a "GetChanges" method in a custom collection implementation (CollectionBase)? The goal is to provide the same behavior of the DataSet.GetChanges method to update the underlying datasource. TIA. ...more >>

Can someone please describe why impersonation requires the impersonator to be local admin? ...more >>

I hope I can get some advice on a design/technology question here. The app is a medical claims case management system. It is written in VB.NET and it works great. It is a Winforms app primarily; there is a web component, but that is not relevant to this discussion. A new requirement has re...more >>

http://en.wikipedia.org/wiki/Windows_Communication_Foundation ..NET Framework 3.0 (formerly called WinFX) - the new .NET Windows API to succeed Win32 with the release of Windows Vista. The above quote is from the link above it. It seems to be saying that the .NET Framework 3.0 will replac...more >>

Hi all, I have to deal a lot with serial data exchange between a .NET (1.1) application running on a PC on one side and controler based devices programmed in plain C on the other. The latter expect data as a stream of bytes, extracting numerical values or char[] by 'counting and casting' (e...more >>

Hello, everyone! I write a program with serial port, error happend--The I/O operation has been aborted because of either a thread exit or an application request. I have no idea with it. This is my source code. Imports System Imports System.Data Imports System.Windows.Forms Imports System.IO ...more >>

Hi, I'm doing comparisons over arguments passed as Object... they can be of any type, but must be comparable using < or >... unfortunatly, the compiler does not give the possibility to compare 2 Object instances with < or >... How can I do this without knowing the type of the objects? He...more >>

I am creating a text file with a StreamWriter set to UTF8 encoding like in the following example: Using writer As New IO.StreamWriter("C:\temp\HelloWorld.txt", False, System.Text.Encoding.UTF8) writer.Write("Hello World") End Using It appears that ASCII charac...more >>

Hello all, I got a problem using Exceptions in Debug mode in Visual Studio : I got an Exception on a classe like : catch Exception(e) { DoSomething(); throw e; } Running in debug mode when getting this exception works fine, but trying to continue running code intercept...more >>

Dear all, I want to install and run ClickOnce Deploying application under a Windows Service,I have make the service starting the application successfully(user API ShellExecute("MyApp.appref-ms")),but not like under regular user account, some time,it acts as if the application is still not insta...more >>

Hi all, I have private Assemblies (many) Now I am planing to put all in GAC. for XYZ reason. I have generated all keys for all assemblies one for each. assembly is A.dll key is a.key Question is is it possible to add a key file to a DLL directly without recompiling code ? Al has some s...more >>

Dear All, I am creating a Image Library and want to know what can the best and standard procedure to do this. Concept is to have all the images needed by all projects (dlls and exes) in the product at a central place (in a single DLL) making it easy to distribute and maintain. There are ...more >>

I wrote a C# Application for Microsoft .NET CF 2.0. It is used on Microsoft Pocket PC, Version 4.20.0 (Build 14053). Is there a way to prevent my Application to be startet twice? Best Regards ...more >>

Hi! I am use to the include file on classic asp for maintaining MS Access database location. On using Visual Web Developer Express, I can only use the MS Access database if it is located on the same folder with the web app. Is there a way that I can locate MS Access as my database but the l...more >>

How to develop a C# Windows application targetting .NET1.1 using VS.NET 2005, I have tried to develop a C# app but it does not run in the systems which do not .NET 2.0 version. Thanks & Regards, Prashant --> .Net Developer in WIPRO TECHNOLOGIES. ...more >>

I was attempting to install an application, but apparently, it needs the ..net framework version 2. I currently have version 1.1 installed. When going to the download page for the redistributable framework package, I see three versions that are available: x86, x64, and IA64. I guessing that the 6...more >>

What do FTP servers do when file send fails durring a file upload? Are partial files ever written? does ftp protocol cover this? ...more >>

Hi! Easy question. How do I compare a bit-column that has "True" and "False" in .NET framework Query Designer? I've made a connection to a Visual FoxPro database (ODBC-connection). I've tried several things like: select test1 from table1 where test1 = true where test1 = 'true' where...more >>

In C++/CLI I defined an enum like that: public enum class FontQuality : __int32 { Default = DEFAULT_QUALITY, Draft = DRAFT_QUALITY, Proof = PROOF_QUALITY, NonAntiAliased = NONANTIALIASED_QUALITY, AntiAliased = ANTIALIASED_QUALITY, ClearType = CLEARTYPE_QUALITY, ClearTypeNatura...more >>

At work we are using a virtual desktop manager called AltDesk (http://www.astonshell.com/), and it is causing a weird and extremely annoying problem with the VB.NET application I am developing. If I start my app, open a test form using ShowDialog() (this is a menu choice on the main app), and ...more >>

I have an app.config that looks like this: <?xml version="1.0" encoding="utf-8" ?> <configuration> <appSettings file="External.config" > </appSettings> </configuration> And External.config contains all my settings, e.g. <?xml version="1.0" encoding="utf-8" ?> <appSettings> ...more >>

Hi, I want to use CompileAssemblyFromSource to create an assembly on the fly, then I want to run it in a separate AppDomain. The separate AppDomain will have tight security permissions. Is there any way to compile an assembly in Domain A, then execute it in domain B, _without_ persist...more >>

Hi Gurus, My company just gave us a very weird requirement, they are asking two layers of protection. First layer, the normal windows log on and once users log in, for certain programs like microsoft word, outlook or whatever other executables they specify (could totally be some non-microsoft...more >>

I would like to have an array of objects (whose class I define) and then just invoke either: MyClass [] clonedArray = (MyClass[]) myArray.Clone(); OR Array.Copy(myArray, clonedArray, myArray.Length); and have an array of cloned objects (i.e. the new array of objects aren't the objects contai...more >>

I need a litle help with dragdrop... I can't find anything useful on google... I have a ComponentOne True Grid and Windows Forms Treeview i want to drag an item from the grid and into Microsoft Treeview... so far i have done this: grid.allowdrag = true tree.allowdrop = true privat...more >>

I'm writing kind of a "network monitor" application in .NET 2.0 (C#); At runtime, the user should be able to configure all kinds of different "sensors" and I want to serialize them to an xml file. There are several different classes for different sensors, all derived from an abstract base sen...more >>

I use classes in the System.Net.Mail namespace to send e-mails programatically. However what I want to do is the following: When the user clicks a button to send mail, the effect is like what happens when you click a MailTo link in a Web Browser. That is, (assuming Outlook is the user's ma...more >>

I get exception when I try to run my c# windowsapplication after its exe-file has been built with dotfuscator community edition. I can only use the "rename" feature. But from what I have understood thats the only thing available for this version. My problem is that even if I exclude everything f...more >>

Hi, I have seen a couple of threads dealing with similar questions, but I haven't found one to answer my question, so here I go: I have a service application that loads a couple of tasks (Plug-Ins you might want to call them). When a task gets executed it will be executed in its own AppDoma...more >>

Hi, i have some generic List instances which where created for different class (e.g. List<int> , or List<string>). Now i have a reflection framework in place which tries to get all the objects of the lists. This is what i would do in a "standard" Code for (int i=3D0; i< List.Count; i...more >>

I've built a small windows service on .NET 2.0 framework. In order to test/debug the application if first must be installed using the InstallUtil command from the vs command prompt. Everything I have tried results in: Unknown Error "-1" I built a similar service on my personal machine at hom...more >>

I would like the user to be able to choose "Unblock" on the security alert dialog when my application attempts to send a UDP packet for the first time. However, the securlty alert dialog does not appear. I have to tell the user (when running the app for the first time) to manually add my app t...more >>

Having documented your C# code with the XML tags for documentation, how do you then generate a HTML help file (.chm) for it? I am talking about code decoration tags such as: ///<summary> ///</summary> etc. ...more >>

In local system .net is working fine, but while working on LAN we are facing a problem . We open IDE and select new project for with Visual basic template choose asp.net webapplication Then we give path as http://serverip/nameofapplication on clicking ok button The error window web access f...more >>

I'm writing an app to upload/download via FTP using VS2005. I am using the FTP Client Library for .NET 2.0 by Howard Richards: http://www.codeproject.com/vb/net/FtpClient.asp Upload download works. but when trying to rename a file with GetResponse it errors with error 500 (Syntax error, com...more >>

A file named Form1.asp exists in the folder C:\Inetpub. The following code exists in a file named FindFile.aspx which exists in C:\Inetpub\wwwroot\ASPX: <script runat="server"> Sub Page_Load(obj As Object, ea As EventArgs) Dim ioFileInfo As FileInfo ioFileInfo = New Fil...more >>

Hi, I am a bit new in socket programming and I have a question about what's the best way to implemnt a TCPClient that can receive long messages? The example I found in MSDN works for me but it downloads only the first chunck of data sent by the server I connect to. How can i make the code ...more >>

I have some XML file like that: === <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>affiliateId</key> <string>AFL9124395098</string> ...................more >>

Please, can someone help me to translate this single function to VB.NET ? ' DECLARATIONS Private Const BMP_MAGIC_COOKIE As Short = 19778 Private Structure BITMAPFILEHEADER '14 bytes Dim bfType As Short Dim bfSize As Integer Dim bfReserved1 As Short Dim bfReserved2 As Short Dim b...more >>

I'm trying to create my own GridView with some addons. I'm realising that by creating a placeholder with a GridView and SQLDataSource in it. The problem is dat the fields defined in the DataFieldControlCollection gets instantiated twice with which the second instantiation doesn't have any at...more >>

Greetings, Is it possible to have the text wrap in a DataGridView's DataGridViewItem/Row? And if so how is it accomplished? Thanks, Chris ...more >>

For general information... as I spent a lot of time tracking down the library I liked and wanted to be sure it was getting the attention it deserved. I am a long-term users of Jabber-net for our xmpp library but were growing frustrated with the lack of Compact Framework support. I found the ...more >>

Hang my head in shame; I only found out yesterday that .NET sockets are already doing overlapped I/O with IOCPs when you make async calls. The only problem I see (experimentally via debugging, so I don't know if it's true), is that each socket gets it's own IOCP. Is there any way to attach a s...more >>

We have a native Windows DLL (let's call it native.dll) we developed a .NET interface for (let's say managed.dll). When a .NET application now uses the ..NET interface to talk to the Windows DLL we always thought that managed.dll must be copied to the application directory (where the .NET appl...more >>

Hi everyone. I have a .NET 2.0 application that has been released using clickonce installation both online and from CD. I have no control over the end user systems and I am being flooded with complaints that the application fails to install on XP SP1 machines and NT4 systems. I understan...more >>

I'm thinking about using the design pattern described at the link below to solve a problem: http://msdn2.microsoft.com/en-us/library/ms228963.aspx I have a question, though, and would appreciate any help. The pattern describes using BeginOperationName and EndOperationName methods for as...more >>

I've got some classes that I've built that currently require far too many locks when they're running in a multi-threaded environment. To get around this, I'm looking to make these classes immutable. I'm also trying to be (as any good programmer) as lazy as possible about the approach tha tI ta...more >>

Can anyone shed some light on why DataRowView.CreateChildView() would significantly slower than DataTable.Select()? my DataSet looks like this DataSet ds; //ds assignment code left out for simplicity ds.Tables["IDs"].PrimaryKey = new DataColumn[]{ ds.Tables["IDs"].Columns["ID"] }; ds.Tabl...more >>