Hi, I have one database for which I have developed windows applications. In the same time I want to continue to develop other applications or update old ones. For this I need a database different from the previous for debug. But after I change the debug database I have to synchronize the two ...more >>

I have one main table which references several other lookup tables, like think of on the main table for example a category_id column with a categories table which maps that id to a string value. I used the .NET IDE to make my dataGrid and all those data adapters and so on and it works grea...more >>

I would to list all devices on computer using IrDAHints Enumeration and I need to use the Assembly: System.Net.IrDA (in system.net.irda.dll) but when I try to include this with the 'using' command I get the error that I may be missing an assembly reference. Additionally, when I try to add a ...more >>

What's the easiest way to make an insert using Microsoft.Jet.OLEDB.4.0 OleDbConnection connection to a MS Access data base file? I'm finding examples out on the net that have like 1,000 line of code to perform what I would imagine should be a very simple task. I've mostly done DB code in J...more >>

I need to change the text of my listview item (not a subitem) the control will not have the current focus. I have tried the following without any luck: ListView1.Items[0].Text = "XXXX"; This does not work - please help! Thanks, Chris ...more >>

I would like to read cells from an excel document. Does anyone have a smple of code for that please? Thanks ...more >>

Hi All, I have a Windows Form app that does some work in a BackgroundWorker. I'd like to append information to a textbox from within the BackgroundWorker but it keeps telling me that I can't do this across threads. Can anyone give me some help in figuring out how (or if) this can be done? ...more >>

Hi Everyone, I'm using the System.IO.Ports.SerialPort component to attempt to kill an existing component opened by another application. I use the following code: SerialPort serialPort = new SerialPort ("COM1"); if(serialPort.IsOpen) { serialPort.Close(); } I cannot for the l...more >>

I was toying around with assemblies, signing and adding them to the GAC. I was mistakenly thinking that if I added a console app to the GAC it could be run from anywhere (anywhere meaning as if the path to the exe was added to your environment variables). It then occurred to me that in orde...more >>

Hi, I am not sure if this is the right group but I have a web control within a page and I am trying to access a method from the control. My master page is set as : public partial class _Default : System.Web.UI.Page { private string Cart = ""; public string GetCart { ...more >>

I have two classes. Class A and Class B. I give class A 5 properties int prop1(){} int prop2(){} int prop3(){} int prop4(){} classB prop5(){} what i would like to do is to create a 5th property and make its type equal to ClassB. but i would also like to index this property too. BTW Class B...more >>

How to translate a old (dos) C application to C# ... Suggestions, <Harvey Triana /> ...more >>

Hi all, I know MsDN is good, but I love a good book. Anyone know any good boks on C#/.NET threading/concurreny? Kev ...more >>

Hello, I need to print a report from the VS2005 Reportviewer control. My problem is that I need to print to a tractor feed (dotmatix like) printer that is not the default printer - for printing mailing labels (thousands of them). I can set all the settings from the pagelayout button of th...more >>

Not sure if here is the right place to ask but I have trouble to access forums.asp.net. I am using C# in VWD. Goal: I want to add the left and right spaces like http://www.dotnetnuke.com/. if the user squeezes the web browser, the web spaces will be gone first without affecting the conten...more >>

Hi I have a file list box with which i am passing the selected items to a string array (using copyTo), however i also need to pass the path of the FLB with each string in the array. Is it possible to add this to each element of the array or is there another approach i could take. Thanks Co...more >>

Not sure if this is the correct way to go about this, but it seems correct. I'm trying to eliminate dependencies through interfaces and want to minimize casting as much as possible, as a result I have interface inheritance setup like so Here's my class setup: BlogPost : IBlogPost PodcastPo...more >>

In order to get events back from a DCOM server (an embedded device running Windows CE), I seem to have to turn off security for my process. To do this, I'm saying: int ret = CoInitializeSecurity(IntPtr.Zero, -1, IntPtr.Zero, IntPtr.Zero, 1, 3, IntPtr.Zero, 0, IntPtr.Zero); in the constr...more >>

Hi, I have a XML file the I use as config file for a libary. Is there a way to use reflection to access the file using XMLReader? Thanks ...more >>

When I create a System.Drawing.Bitmap and save it as ImageType.GIF, how can I set the transparency so that the background is transparent. In my application, the Bitmap that I am working with has several transparent GIFs drawn on it and the transparency of each of them works within the bit...more >>

hai, what is abstract class and abstract method...more >>

Hi, I hope someone can help. I have written a simple form to demonstrate my problem/question. The code follows. The form starts a thread, which using delegates updates a label (Every second adds another dot to the label). This works great. However, when I put the GUI thread to sleep (Th...more >>

Hi! Don't know if this forum read somebody from MS team. I suppose yes, so propose new language future wich i need very much :-) I think it would be nice to have in C# something like macros, but more powerfull. Here is example: // code frame public codeframe MyCodeFrame { initializatio...more >>

Hello, I wrote a simple addin for Excel using C#. It works great on my development machine. However, when I installed the package to another machine, the COM addin does not show when open excel application. Question: What do I need to do to resolve this problem? Thanks in advance! DH ...more >>

I have a 1600x1200 screen at my desk which I love. Problem is when my boss comes in and I want to show him something - he has to squint and get real close to the screen. So in an ideal world, I would switch it over to 1240x1080 when he comes in. I know I can go through the screen properties ...more >>

I'm researching different component suites to use in VS 2005 and SQL 2005. I'm a beginner @ C# and ASP, so I'm looking for something stable, fast, and easy to learn. I've found 2 that I think are good, Syncfusion's Essential Studio and ComponentOne's Studio Enterprise. Has anyone used either o...more >>

Hello All: A pretty frustrating question to ask! I use the string [] something = stringx.split (delimiter.tochararray()) mathod to delimit a long string by space! So supposely if the stringx is : " something something1 something2 " I should get string [0] = something, string[1] = something1...more >>

Hi all, I have written a program and the label.text is retrieve from the database. However the length of the string could be very long and i would wish to have line breaks in certain portion I tried manipulating the text in the database with \r\n but this does not work. Are there anyway...more >>

Hi Everyone, Most tutorials I've seen address cookies from the server's perspective, assuming that the client (usually a browser like Internet Explorer) will manage the persistence. I am faced with writing a C#.NET client that uses a web reference to a SOAP web service, and I need to persist th...more >>

Hello, How can I write a C# code inside a javascript code, before body tag, as we wrote in classic asp? (I have a code file separated with a lot of C# code) I would like anything like this: <head runat="server"> <style type="text/css"> <% in...more >>

I currently have VS V7.1 which uses the 1.1 .Net Framework. Do I need to upgrade my VS If I wanted to use the 2.0 framework? I need to use C# 2.0 thanks for the feedback john ...more >>

I need to write an XML document, that other users can work with to change values and to add elements. My problem is that for each element that me or any other user will add, should have some kind of attribute (or any other solution...) to indicate its type, this type is a variable type to b...more >>

Very new to this but using the MS working with dynamics CRM 3.0 book to run web application to retrieve lead records from CRM 3.0. Have followed the book instructions on page 380-382. But am getting the following in ie 7. Compiler Error Message: CS0234: The type or namespace name 'CrmSdk' d...more >>

hi, If we want to register a service on a reomte host with C++, we call API OpenSCManager/CreateService to do the job. But with C#, how to do it? Are there any relevant classes to help? Thanks in advance -Zhilin...more >>

Hello, I have a base class that is serializable and a derived class that is not. I want to pass the base class object to an external function that requires a serializable object. How can I cleanly create a new instance of the base class that copies the base class from the derived object. I...more >>

Hi, We know that windows API WNetAddConnection2 can make a connection to a network resource. but how to do this job in C#? i'm wondering about it. Thanks -Zhilin...more >>

does anyone know how to convert from Int16 or short to Hexadecimal and vise versa?...more >>

Does anybody know about some project analyzer that displays modules and relations as a block diagram? GadyC ...more >>

how to create online shopping website.. ?? any architecture ?? How to design any guidlines ? and what is verisign ?? other secure protection needed ?? i want to develop in C#,Asp.net,Sql Server... ...more >>

hello, i want to know usage of static methods in a class. is it advantageous or disadvantage to use more static methods in a class. thank u ...more >>

I want to remove a remote access connection when a user logs out. The connection is a dial up isdn adapter. I can access the adapter via WMI namespace \root\microsoft\homenet, but i don´t find any way to delete it. Is it possible to do this or do i need to some pinvoke on rasapi32? ...more >>

Hi All, Part of my new app does some quite intensive calculations. In Delphi (my previous language) one could call Application.ProcessMessages; in the calculation loop to make sure that the system was being given enough time to process it's own messages (makes the app and desktop much more ...more >>

I've got a pointer to a byte and want to set the byte it points to to zero as well as the three bytes after. I could do this dstPtr[0] = 0; dstPtr[1] = 0; dstPtr[2] = 0; dstPtr[3] = 0; but can convert it to an int* first and just do *(int*)dstPtr = 0; is this correct and is it good ...more >>

Hi All, I am using the flow control (can't remember its full name), to display a few dynamically created controls based on the tags the user has added to my system. This works fine, except when a user scrolls this control area (when there are a lot of controls) the screen update is terrible...more >>

Hi All, I am trying to read the contents of a page through its URL. My code snippet is as follows: public void mtdGetPageDataHWR() { HttpWebRequest objRequ = (HttpWebRequest)WebRequest.Create("http://www.microsoft.com"); HttpWebResponse objResp = (HttpWebResponse)objRequ.GetResponse();...more >>

Hello, I use the code below to zip files to a single .zip destination. I get the expected result when i work on my developement machine (WinXP sp.2). When i deploy the web application which host the code on win2k3 , it only works for a single file. I gave the modify right to "Noetwork ...more >>