I have this snippet in Java:
final InetAddress address = InetAddress.getLocalHost();
final NetworkInterface ni = NetworkInterface.getByInetAddress(address);
key = new String(ni.getHardwareAddress());
"key", on my PC returns:
▲╔UiÎ
What would be the equivalent to get the same output in VB.Net? I have tried getting 'MAC Address' and 'Physical Address' but they do not compare to the output in Java at all?
Code:
'array
Dim adapters As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces
'Need to output names 'adapter.Name' to another array for faster access.
'Iteration, slower
[code]....
I would like to put all the network interface names into an array without using iteration (For Each, For i).Is there a way to get the properties ie. 'Name' of an array object and be able to array.getvalue() their names?
I'm writing a VB2005 program (for WinXP) to implement a lighting show and need to clarify a few things before I buy a video projector.My PC has 2 Geforce 8800GTS cards. One will feed a standard monitor (housing the program control interface) and the other will feed the video projector doing the lighting show.My prog uses GDI DrawString to output text to the video projector.In the prog I want the output of Form1 (control interface) to ALWAYS go to the Monitor (through the primary display adapter) and the output of Form2 (GDI text strings) to go to the video projector (through the secondary display adapter).Can I assign a FORM to a specific Display Adapter or Monitor/Projector so that all output from that form will automatically go to that adapter (monitor/video projector)?If not, what is the best way to do it? Perhaps something like the following? Frankly I have no idea whether this is even remotely correct or whether there is a better way. [code] If the above is correct, will it work for a video projector as well (i.e. is a porojector also set to a specific resolution/bounds and is that resolution/bounds used as its size, as with a monitor?
View 2 RepliesI used the ODBC Data Sources admin panel to create a "data source" for an ".mdb" file. This was very easy. I can access the mdb (database) file via an ODBC driver, locally. However I need to access this data source over the network. Can anyone please help me learn how to make this same database available on the host's network interface? Perhaps there is a tutorial, video, or some other documentation that explains how to modify a data source to make it available on the network. I am using Windows XP. I hope this does not require a special Windows server distribution.
View 11 RepliesI have a visual basic .NET application that starts up a command prompt window using the following method:[code]The bat file then goes on to start up an application, which has a lot of output to the command prompt.I was wondering if there was any way to pipe the output of the bat file to a visual basic control. I am trying not to modify the bat file, if I can help it.
View 9 RepliesI am trying to write a program in VB2008 Express. I originally wrote it in excel, but I want to add some features and make it a standalone executable. the program is ideal for a spreadsheet application though.
essentially, there are two input tables. each containing about 6 columns and maybe 10 rows. I assume that could be handled by arrays. the output would be a continuously updated table of output based on calculations using the data from the two input tables. the output table would be about 4 columns by up to 1000+ rows, and would need to be recalculated and displayed each time any data in the input tables has changed.
first, are arrays sufficient to handle this? would databases be more appropriate?
second, what's the best way to display a long list of output, that has a user defined length and is continually updated. it would also be nice to have the ability to click on an individual cell (or value) in the output and have more code executed.
is there a way to incorporate a spreadsheet like tool for this as a backend? I want to make sure i'm using the most efficient approach before i invest too much time.
I am re-writing my old VB6 DXF viewer control in VB.NET Winforms. Attached is a picture of my testbed app. As we only need it to check parts that have been created to generate gcode for our laser it is limited to Points, Lines, Arcs, And Circles. It has Point, EndPoint, Centers, and Intersections snaps for all entities and combinations of entities. Measured output is displayed as Actual Point to Point plus Horizontal and vertical delta. Zoom Extents, Zoom Window, Pan and Mouse Wheel Zoom are fully functional. The last took a while to develop as I wanted the Zoom to be centered about the cursor position just as it is in Acad.
View 19 RepliesI've been having huge problems having a VB.NET Windows Forms program run as a scheduled task under XP SP3. The program runs when I set the task up to use my non-admin network username and password, I can see the interface fine (albeit without the desired results - the program requires access to remote shares). When I set the task up with the network administrator account credentials, the task is "Running" but I do not see any interface. It doesn't error - it just kind of sits there happily in the background.
[Code]...
I have another chunk of VB6 code that seems to need some workaround for .NET. For a shortened version, this is all it is doing:
[Code]...
And so on, and so forth. You can see it keeps repeating itself to create new lines. The question is, is how do I implement the same thing in .NET?
Here is my idea so far: I have a bunch of computers connected in a local network. One of them is a MySQL server, one will have a vb.NET program wich will act as a "second server" and the rest will be different clients. What I want to do is that the "second server" will send out some kind of message or network package to some of the clients in the network, and they will execute a code based on what message it is, or what kind of package it is. I'll give you a simple example:
[Code]...
I have a .NET 2.0 *.dll that calls My.Computer.Network.Ping(). The *.dll is then run out of an *.exe via AppDomain.CreateDomain() and Invoke(). The problem is that this works just fine under Windows XP but under Windows 7, I get an exception saying that no network connection is available. I tried the Ping() call out of a small console application under Windows 7 and it works just fine.
[Code]....
What I am trying to do: There are three powershell scripts with different time delays as shown below.I am trying to run them asynchronously in .NET and I followed this article to implement Asyncrhonous programming. Where I am stuck:The I am not able to retrieve output after the events are invoked.The scripts are being called but then the program ends and it shows "Press any key to continue" in console windows.I don't what I am missing here.
Info: JobRequest is a class that I use to pass around information keep track of jobs.
Sub Main()
OurAsyncFunctionCalling("psDelayScript2.ps1", "-arg1 4 -arg2 5", 1)
OurAsyncFunctionCalling("psDelayScript1.ps1", "-arg1 2 -arg2 3", 2)[code]......
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Microsoft.VisualBasic.Interaction.Beep()
System.Diagnostics.Debug.WriteLine(3 + 2)
End Sub
Why I don't see in Output window number 5 as output?
how to create a user interface in a game such as the application XFire using Visual Basic?
View 3 RepliesI'm working on a design project where I have to use a Graphical User Interface that contains a drag and drop form. It consists of having a window dropped on a wall. Both of them are images to scale. I would like to know what kind of code I would have to use to show the x and y coordinates of one of the points of my window when dragged so when I drop it, I'm dropping in it on the desired coordinate of the wall.
View 2 RepliesI am writing some code as part of a framework for opening a file.The file is of custom type and should not be opened by more than one instance of my application. To stop multiple file opening I use a filestream to create a lock file and then keep said filestream open. This seems to work in preventing another instance of my application from opening the file ( as it will fail in recreating the lock stream in the files open code ) but if the file is on a network share and the network drops then the original application also can not access the file any more.The code to get the lock stream is as follows:
Try
' We need to keep this stream alive to prevent other applications gaining access to the lock
mLockStream = New FileStream(mLockPath, FileMode.CreateNew, FileAccess.Write, FileShare.None)[code]....
In this I create the lock stream the first time round and then if another application tries to create it, it throws an exception and stops them from getting any further. This is kind of how it needs to work, unfortunately as I said, if this is done across a network and then the network connection is dropped for some reason then I can not delete the lock stream as I get an IOException telling me a process cannot access the file as it is open in another process ( which shouldn't be happening I don't think).
I'm just going to throw all my code in here in case there's something wrong with a piece of the code not in the "SelectName()" sub.
Module Module1
Dim selectednames As String = ""
Dim index As Short = 0
Dim inarray As Boolean = False
[code]....
Here's an image of what it does (I suppose you can see what went wrong)13 inputs, 3 outputs expected, only 1 output given.As from what I've figured out so far, it's doing the correct amount of loops etc. It's just as soon as it starts generating the "winner" for the 2nd game key it doesn't get a string value from namesarray.Also, why is
For x = 0 To totalnames - 1
Debug.Print("namesarray(" & x & ") = " & namesarray(x))
Next
not giving me a debug output?
I was wondering if I could elicit some tips on how to procede with an interface design approach.That is. What is a good way to go about establishing a "work area" where one can have multiple "floating forms" in this area.Can you have a form which occupies the entire windows desk top and the other forms "float" in this space? the "floating" forms would need to interact with each other where pressing buttons etc on them would affect other forms on the "workspace") Or what would be a good way to start accomplishing that? Or is there a better way to get the same effect?
View 4 RepliesI'm trying to make a .dll that contains a lot of basic functionality that a program can use. Currently i am trying to use interfaces to make a lot of this functionallity independend of the program using it but i hit a snag. The Basic idea is that a programmer will create his own object using the interface discribed in my .DLL file. Then implements those functions as he likes. He can then instanciate a controller (found in the same DLL) and sends his custom object implementing the interface to that Controller. The controller can then be started and will take over all the work. I do not know what type of object is send to the controller and idealy i want to program it in such a fashion that i shouldn't care as long as the object send implements that interface.In code I am trying to achieve the following: (quite simplyfied)
.Dll:
Code:
Public Interface MyInterface '<----Decleration of the interfaceFunction GetData() As Integer
Function SetData(Data As Integer)
end interface
[code]....
this propperly. I know that the second i set the interface adaptor in the Controller VS comes nagging that it can not be converted to a "MyInterface" Class. Obviously i am doing something wrong. I can change the datatype that the controller expects to the "MyController" type but that would completely ruin the whole idea of flexibillity. I am hoping someone sees what i am trying to do and can point out where i made the thinking error.
Is this where i would post a picture of my interface and get feedback on changes for easier use? If not is there someplace on this forum or any other forum to do this?
View 1 Repliesin the codebase i'm maintaining there is an old interface. Let's call it IFoo. It pretty much became obsolete and replaced with the Interface INewFoo with a change a few weeks ago, but for backwards-compatibility purposes, i wrote a wrapper class which implements INewFoo and takes an IFoo in the constructor.To clarify, consider the following code.
Public Interface IFoo
Sub DoStuff()
End Interface[code].....
For both interfaces, the implementations are loaded by scanning a few assemblies with StructureMap. Now, let's get to the bad things. Most implementations for the old interface were put into forms for reason i can neither understand nor change. Because those tend to be displayed and disposed, i have to create a new instance every time i use ObjectFactory.GetAllInstances(Of IFoo). Thats still no problem, but i'd like to register a INewFoo-Wrapper for each registered implementation of IFoo, so that i can just use ObjectFactory.GetAllInstances(of INewFoo) and get all implementations of IFoo AND INewFoo.I can't iterate through the implementations of IFoo and register a wrapper for each one because as far as i can see, you can just register those with instances.Wrong code below:
ObjectFactory.Configure(Sub(config)
config.Scan(Sub(scan)
For Each ass In assemblies[code].....
My question is: Is it possible to register a wrapper for each implementation of IFoo which always creates a new instance of the implementation before creating a new instance of the wrapper?
I want to declare a property as an interface collection of an interface, and I want to instanciate the explicit type later, in the constructor. Something like this.
Public Class LicenseFile
Implements ILicenseFile
Public Property Collection As IList(Of ILicenseFileDataNode)
[Code]....
In short, the question is "Why It Didn't work"? This is a simplified scenario, but It's easy to take a workarround, But I need understand the reason because It's fails.
I'm using interface with relay and interface is connected to computer on COM (serial) 9 pins port. In Visual Studio 2005 I'm using this
SerialPort1.Open
SerialPort1.DtrEnable = True
SerialPort1.Breakstate = True
[code].....
I have a problem I want to make a server and client where the server is password protected and will make the client display files/folders in a designated folder which will be in the server's current directory and the client will ask what IP and password to connect to and if the password is correct is allows the client to access the files/folders in that folder in C.D. of the server and the client can download any file within the folder by clicking a button, yet don't even know where to start.
View 7 Repliesim using Trace to trace and debug my Application which works fine. Now i wanted to output my Trace Information to a text file like below:
Dim c As Integer = Console.ForegroundColor
Dim ts As TraceSwitch = New TraceSwitch("SPMassUploader-TraceSwitch", "")
Dim tw As New TextWriterTraceListener(Now.ToString("yyyyMMddHHmmssfffffff") & "-" & "output.txt")
Trace.Listeners.Add(tw)
[code]....
Why does an interface override a class definition and violate class encapsulation? I have included two samples below, one in C# and one in VB.net?
[Code]...
I have an interface class (IUser) which is the interface of class User. Now, i want to put these into an IList but am confused as to how i should declare the IList:Dim userList As IList(Of IUser) = New List(Of IUser) Dim userList As IList(Of User) = New List(Of User) Dim userList As IList(Of IUser) = New List(Of User) Dim userList As IList(Of User) = New List(Of IUser) when instantiating should you always use its implementation; and when using it as a type use its interface?
And when im creating a new user should i use: Dim myUser as IUser = new User?
I know that AndAlso is equivalent to && and OrElse is equivalent to ||. But what is the cleanest way to achieve the equivalent of Visual Basic's And and Or in C#?For example, consider the following VB.NET code.The ValidateForControl method performs some validation and returns whether the state of the specified control is valid. The entire input form is valid if all controls are valid. However, each control must be individually validated even if one is invalid (which requires the operator not to short-circuit). Visual Basic's And operator is perfect for this situation, but unfortunately there's no equivalent operator in C# as far as I know (&& short-circuits).
[Code]...
I am Validating a TextBox on it's KeyPress Event in VB.
VB.Net
If InStr("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz`~!@#$%^&*()_+|[]{};:<>/?,.'" & """" & Chr(8), Chr(KeyAscii)) = 0 Then KeyAscii = 0
What will be it's equivalent in C# ?
Let me know how can i use this Err in c#.This is VB Code:
If Len(sPart1) <> PART1_LENGTH Then
Err.Raise(vbObjectError, , "Part 1 must be " & PART1_LENGTH)
[code]......
