FTP Download Throws 550 Error But Not If I Manually Step Through The Debugger?
Apr 23, 2012
I am attempting to list files within a folder on an FTP site. When I run the debugger, I get a clean run the first time with no problems. Subsequent attempts lead to a 550 error: "The remote server returned an error: (550) File unavailable (e.g., file not found, no access)." However, If I step through the process in debugger, It works fine. I'm thinking this is a timeout issue because there are many files within the folder. Any suggestions?
Private Sub ListFTP(ByVal Directory As String)
Dim Req As FtpWebRequest = Nothing
Dim Response As FtpWebResponse = Nothing
I've reviewed the other posts regarding this subject. I'm using VB from Excel and the function keys are not working. I'm running Windows Vista Home Premium with Office Ultimate 2007 Looks like Excel is running VB 6.5So, this used to work for me...I've used the debugger quite a bit. When I try the solutions suggested Tools->Options->Keyboard (after checking check-box to show all settings) when I click on the box just below "Apply the following additional keyboard scheme" the only item in the list is default. There is no selection for VB 6 or anything else for that matter.
Is it possible to manually download the Microsoft Framework 3.5 or 4.0 ? That would be useful in order to have it during installation of a program . I know that when installing a VB .NET program , it asks to connect and download it , if the PC does not have it already . The problem is that some people have a very slow connection speed or don't even have any connection . Therefore it would be useful to have that installation kit in order to supply it along with program itself .
I am running Microsoft Visual Studio 2008 Professional on a Windows 7 system. While working on the visual basic exercise in chapter 4 of the Microsoft Visual Basic 2008 Step by Step book on the MyMenu program I added a Toolstrip to my form and then I was trying to perform the add OpenFileDialog and ColorDialog controls to the component tray as described at the bottom of page 111 under Using Dialog Box Controls. I could never get the controls to appear in the component tray as instructed in the book.
I have a program that plays a video and uses the step function to move frame by frame backwards and forwards through the video. The forward frame works just fine:
AxWindowsMediaPlayer1.Ctlcontrols.step(1)
However, the backwards step (below) jumps a full second backwards while the forwards step only steps .033 seconds forward (presumably a single frame).
AxWindowsMediaPlayer1.Ctlcontrols.step(-1)
I can't find any documentation about this problem online and in fact I can't find much mention of this function.the documentation does say the -1 command should step back one frame. IWMPControls2::step method Is this a known bug or is there an updated function I should be using?
I really need to learn much about it, but always stock up,.DOTNET covers the vb.net, C#, C++, ASP.NET, .NET framework is it right?.C++? ASP.NET?What should be my step by step procedure?
Will I start on database? Connection of client and server? Webrowser? Application?...etc etc etc.Will it ok if i start on studying every toolbox item one by one?
I dont have any project or every assignment that needs to be done....All i want is to learn about DOTNET
coming to the topic i want to learn dotnet i am not good at programming. but i want learn it i m very passionate about it.you all know soo much about DOTNET even i want to become like you people.i have a bit knowledge about this but not much..What should be my first step towards this?How should i start with and from where should i start with?
My need is to work with what I have (2005 studio), what I know (Visual Basic) but need a primer. I am a visual learner (so I need to see [1] how the form is created, named and set up). From there I need to see [2] how he code works so that I can implement from there.
I have a wizard where users need to fill out data. You cannot navigate to the second step until first step is completed.
I enforced this behavior by disabling/enabling "Next" button, but I really do not like this solution, since it seems not really elegant or safe here. What is the good approach on building step-by-step processes with enforcing step completion.
I'm trying to understand how this code work step by step but I'm confusing How the code work when executed from first step to last step?example: when I set obj to age = 39 . is the first step is checked if the variable in m_Age or checked in Property Age
vb Dim obj As New Minimal obj.Age = 39 MsgBox("after setting the age to 39, age is " & obj.Age.ToString) vb Public Class MinimalPrivate m_Age As Integer Property Age() As Integer Get Age = m_Age End Get
I'm currently building an application in C#, using a basic design I came up with in VB.net for applications involving openGL. Using the Tao framework in VB, I have the following method:
Private Sub checkForGlutInit() If glut_initialized = False Then Glut.glutInit()
I have created an application using VB.NET in VS2008. When I run the app in the IDE on my development machine it works fine. It also works fine when I build it and run it as an exe on any machine that also has Visual Studio installed (at least 2005 and 2008 anyway) However, when I try to run the compiled executable on any machine without Visual Studio it throws up an error "[program name] has encountered a problem and will close..."
Yes its me again with yet another problem Ok so I've now gotten round to trying to display some data from my database and displaying it in a DataGridView Heres the critical part
In our code base there is a function which should return either an object or nothing. The exact code is this : Return NothingThe calling method looks something like thismyObj = theClass.function()if myObj <> nothing then // fails
I am trying to get the selected rows from a listview. To achieve this, I did this:
Dim numsel As Integer numsel = Me.ListView1.Items.Count For countme As Integer = 0 To numsel
[Code]....
It does count the selected rows, but it always throws out the error saying "ArgumentOutOfRange Exception", or something along those lines. For example, if I selected a row, it will output the results of that row. But the loop goes on. I tried everything I can but to no avail. I specifically want to select multiple rows, and I can achieve that if someone can assist me with this simple "problem" I have.
I have a major problem. Things were going great until I came across this little bug(?) which has thrown a stick in my spokes. As I will demonstrate below, it seems that when defining certain numbers Visual Studio will throw an overflow error. Dim T As ULong = 14774537964905701134 'Overflow error in the IDE Dim M As ULong = ULong.MaxValue '(18446744073709551615) we are below the maximum value so it should work, right?
The one solution I have found is that we can use the following declaration instead. Dim T As ULong = ULong.Parse("14774537964905701134") However, to make matters even more complicated the value in question is unknown and must be compiled using CodeDOM so using the Parse method isn't an option. Unless there is some way I can determine if that value in particular will give me an overflow error.
I recently upgrade a project from vb 6 to 2008. Most of the code runs fine.I have a webbrowser form control that I use to navigate local files and display them with. (i have a file list box that you click which calls the navigate of the browser control). Most file types i have test work fine and display just as they would in a real browser window. Excel, PDFs, etc... so examples of files that utilize "plugins" like acrobat reader inside the browser work great. Tiff files are the exception. No error is thrown in vb, but the browser throws 2 runtime errors, included at the end here. After the browser errors are ignored the program continues execution but will just not display the file.
i can type the path to the file (eg c: estfielsfilename.tif) in a regular browser window and it displays just like it should, inside IE, using a plugin.Prior to upgrading, depending on what was installed on the computer, navigating to a tif would open the tif with picture and fax viewer, or display it with a tif viewer plugin.
When using Nero Recode I get a error message shortly into the program saying:
"An unhandled win32 exception occured in Recode.exe [5580]. Just-in-time debugging this exception failed with the following error: No installed debugger has Just-in-time debugging enabled. In Vision Studio, Just-in-time debugging can be enabled from Tools/options/Debugging/Just-in-time"
As far as i can see it is enabled but I still i get this error message.
I cant figure why the VB JIT Debugger control transfers the error to the program when I run in Debug mode and goes on in an infinited loop... I am using VB.NET 2008 and MS Access as the database backend.What I am trying to do here is that whenever I catch an exception (I have some C# code dll added to this main program and it should catch the unhandled exception and the addhandler routine will follow suit. So the moment any unhandled exception is caught MyHandler method is invoked and I need to take the backup of the database (Delete if the original file exists, copy the *.bak file as the original file name(was created during new file development) ,name it as *.mdb ) show a customized messagebox warning the user to abort (custom crash dialog instead of the standard default one)Somehow Myhandler goes in an infinite loop stop at line Globals.startBackup inside Private Sub MyHandler..Any idea on this weird AppDomain.Unhandled exception and how to prevent this from happening? [code]
I'm trying to compile a brand new 2010 windows forms application with a form and a single button that should display a msgbox with "hello" in it.When I try to compile I get the error message:
Unable to write to output file <filename>: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.
The application that I am working on is a Service Desk App. I have a form there that uses a DropDownList that contains employees names coming from the Active Directory. Any employee can make a request and save it. Problem arises when an employee leaves the company and consequently his account is deleted from the Active Directory. When some other employee searches the DB to finds a relevant Service Ticket that could be of his use, when tries to open it an error is thrown that indicates that the name does not exist in the DropDownList items.
UPDATE:I am adding some code so that it can be more clear.
The application was previously using GlobalMemoryStatus() and MEMORYSTATUS structure to retrieve memory information. But since, the Physical memory of the hardware in which the application runs is more than 2GB, the code was changed to use GlobalMemoryStatusEx() and MEMORYSTATUSEX structure. When this function was implemented and the struture was used its thrown compilation error: "error C2501: 'MEMORYSTATUSEX' : missing storage-class or type specifiers"How to solve this issue???
I have an XML file where some of the elements have periods in their names. Using the code below, I receive the error:
"System.ArgumentException: Child list for field Stock cannot be created"It successfully reads the file if the periods are removed( i.e. StockAdjustment instead of Stock.Adjustment)
Dim myXMLfile As String = "C:file.xml" Dim ds As New DataSet() Dim fsReadXml As New System.IO.FileStream(myXMLfile, System.IO.FileMode.Open) Try
[code]....
Is there a way to handle elements with periods in their names?
I seem to lost the practice files disk for this book, and I am trying to 're-learn' this book. I am unable to do the lessons without the practice files. If you have the disk and could maybe zip them up and email them to me? I have the other disks still, and am using the Visual Studio Express to do this.
