I would like to add barcode functionality to my POS program How does one attach barcode reader is it usually USB port How can the program get the data read by the device Thank you, Samuel ...more >>

I ran into a small issue and I found a solution however it is cumbersome = to use.=20 The problem and solution is describe within the MSDN article = http://msdn2.microsoft.com/en-us/library/ms171728(d=3Dide).aspx I would like to create one subroutine for all my textboxes and not one = for...more >>

I am trying to read some data from a dll via a callback. I have a deligate and all imformation is correct except for an array. This is the original struct in c: typedef void (*PutSampProc)(short samples[], int arraylen, int nrsamples,void *userData); This does not work: <StructLayout(L...more >>

hi, how can i access the header of MP3 files? like i want to access the Version, layer, if it has error protection, the bit rate, frequency, if its copywritten, etc....would i need to use a binary reader or how would i achieve this? thanks -- -iwdu15...more >>

hi, im making my own menustrip control since i want to add a few things to it. but now im stuck on how when you click on for instance a main node of "File", it always is highlighted in one color....i cant figure out how to change this, be it on the normal one or how to override this by making ...more >>

Hi, I am trying to write a script that sends a code to a COM port to open a till draw. The code at the bottom of the page (written in C) is what the suppliers sent as an example. I have used the SerialPort class in .Net 2.0 to try and send the same message. So far I have this on a button cl...more >>

Hello I'm building a UserControl in VS2005. How to make an editor for a collection of generics property for design time in property grid? Thanks ...more >>

This popped up during the execution of a routine that accesses data from 2 different system. Increase connection timeout won't help! ContextSwitchDeadlock was detected Message: The CLR has been unable to transition from COM context 0x1af9b8 to COM context 0x1afb28 for 60 seconds. The thre...more >>

Does anyone know how to get the checkedlistbox to display items horizontally on a windows form? It seems that it only displays its check box items vertically (up and down), which is not what I want. I want to be able to use the CheckedListBox to display the days of the week going across (ho...more >>

Hello! I have a folder with few big files (about 1GB). I would like to copy them to other folder. But "one after one". How can I now, that first copy of first file ended? I would like to run my special event (like writing to the eventlog) and then start to copying second file. Leszek ...more >>

Hello everyone. I would like to develop a program in VB.NET that will look for an instance of a running application and if the application is not running, the new program will execute the application and open it. There is a program out there called KeepAlive that does this but the thing is tha...more >>

Prewarning: I'm a newbie at VB. I just got done reading _Beginning Visual Basic 2005_ (wrox) and I'm trying to put some of the things in there to use. I have a form where I can page through the records of a database, one at a time. This form allows me to add new records, update records and de...more >>

I have a label on a Windows form. I have the following code which doesn't work when I mouse over the label. Any idea why? If I change MouseHover to MouseEnter it works. So, what good is MouseHover? Private Sub Label1_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs)...more >>

I have VB Studio .net 2003 Standard and I'm having trouble with two issues. First I'm trying to add a Console Application to my solution and I don't find an icon under Add New Item. On another similar issue I can't add a new Class Library object. Thanks for any clues! ...more >>

I'm having a weird problem with the Keydown event. - I have a form with the KeyPreview property set to true - I have a Form_KeyDown sub that does a bit of code for me - I have a few control buttons on the form Now comes the weird part. When I first launch the form, it intercepts the key pr...more >>

Why can't we create 2 properties with the same signature .. one on a base class and one on a derived class, even though both properties are shared? Public Shared ReadOnly Property MyProperty() As Integer Thanks, Mythran ...more >>

I was hoping someone has come across this and came up with a solution. We have upgraded our custom software to us Infragistics UltraWinGrid 2006 CLR 2.0. The code below worked with a previous release of the UltraWinGrid. When the user clicks on the 'Select All' button this code is selecting...more >>

Hello Folks, i hava a problem in coding of circular left shift of 25 bits in my program...how do i perform it, and how do i use unsigned in VB. My program (IDEA algorithm implementation in VB) requires unsigned bits...so how do i go thro this ,since VB does not support unsigned operations ...more >>

In the Java world you create a Servlet that extends the HttpServlet Class, as in: ---------------------------------------------------------------------------------------------------------------- public class ExampServlet extends HttpServlet { public void doPost(HttpServletRequest request, ...more >>

I hear a lot about Servlets running in Web Containers in the Java arena. I believe that the Web Container in question is the Web Server, like Apache Tomcat, or IIS in the .NET arena, but what about the Servlets? Is the counterpart to the Servlet in the Java arena a .NET "Web Form" written in V...more >>

Here's what's happening. I need to take a value, and insert it into an already-created row in a SQL database. The methods I know of only add rows to the end, therefore I cannot edit information. If I know the index for the row to be edited, how can it be done? Help would be much appreciated. ...more >>

Hi all, I have a string variable that contains HTML such as str = "<html><body>hi there</body></html>" now from above string variable I want to retreive the string between <body> and </body> tags. Can anybody please enlighten me as to how can I solve this problem. Any help and insights will b...more >>

Hi, I'm developing a new app. I'm using threads, I have used it before, but I'm not sure of some issues when threading as I'm not an expert with this. I'll go with a direct example of what I'm doing, I know that is not very correct, but it's the only way I know, so if someone knows how to do i...more >>

Am I right in guessing that there is no direct C# equivalant for the 'WithEvents' VB keyword. The substitute is to add event handlers to the delegate instances that are the public members of the class. For instance, Public WithEvents ObjFoo As New ClassFoo Public Sub ObjFoo_FooDone(ByVal ...more >>

I want my application to do three tasks simultaneously. Each of the three tasks must be performed at a periodic interval of time. Each of the three tasks is somewhat complicated and is thus composed of a number of sub-tasks that are to be performed in a linear sequence. The three tasks are ind...more >>

Do timers run on the same thread that creates them or (internally) a new thread is spawned per timer? ...more >>

I have a datagrid on a windows form that is updated with new records. When I add a new record to the table I want to automatically update the datagrid by filling it and refreshing it and in addition I want to sort a date column in the datagrid Descending (without clicking the column) reidarT...more >>