VS 02/03 Error: Cannot Obtain Value In Watch?
Sep 28, 2009
I'm testing a window application which was written in VB.Net 2003.I set a few BreakPoints and Debug the project.When the debugger hit one of the breakpoints, it stops at there. Its correct.But when I try to add one of the variables to "Watch", it said "error: cannot obtain value".I tried to search the Net and found that some said "its because of structures", some said "its because of passing too many parameters." and some said "its because of too many line of codes (LOCs)".but my problem is not in passing parameters or too many line of code.the function i set breakpoint has only around 300 LOCs (including around 100 line of comments)And the value I tried to get is from my TreeView which is on my Win Forms.its very strange that I can't even get the value from Forms.
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Jan 25, 2011
I know in the older versions of Visual Studio, there was an "Add Watch" option where you can choose to stop execution when the value of the field changed. I am using VS 2010, and I can't figure out how to hit the breakpoint when the value of the field changes.
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Jan 23, 2010
i have a variable that changes every few minutes and I am trying to find out the best way of going about 'watching' that variable and simply changing the text of a label based on the returned variable
so pseudo code on a button click at the moment i have a function that returns this variable
label1.text=myfunction.getName()so this works fine , It seem ugly to have some kind of sleep function that loops every couple of seconds to run myfunction.getName() every 2 seconds , as a bit of a newbie , I am just wondering how I can set up a function that basically says 'when myfunction.getName() changes , then change label1.text'
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Aug 29, 2009
I need to watch a folder in our network and if any files get dropped in any time of the day I need to ftp to a different folder.
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Apr 16, 2012
i have a next button that is enabled only after a textbox is filled its working fine but the problem when a user fills the textbox it will be enabled then clears the textbox it will stay enabled and he can proceed how to stop that ?
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May 15, 2012
I'm trying to build a custom control while really going head first into GDI+. I've got e.graphics down pretty tight. But I'm having problems trying to get the numbers on the watch face. Like it's driving me insane. This is what I've come up with so far:
Dim count As Integer = 12
Dim a As Integer
Dim clockfont As New Font(Me.Font, FontStyle.Regular)
[Code].....
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Jan 22, 2012
I'm having a problem trying to work out how to watch a folder for changes. This is how far I've got:
Class MainWindow
<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Private Sub Window_Loaded(ByVal sender As System.Object, ByVal e As
[Code]....
The problem is when a change occurs in the folder the program exits with no error code. I've read a few related posts and I know it has something to do with thread safety. However I've no idea how to make this program "thread safe".
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Jun 30, 2012
How to watch process activity ?
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Apr 21, 2010
I remember in vb6 you could set a watch on a variable and tell it to break when that value changes. I see where you set a watch value in 2005, but I don't see where you can set it up to break when the value changes.Am I missing something or did they remove this functionality?
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May 27, 2010
Is there a way to get info like process name of started program, so if i start internet exp. it will detected it and get like iexplorer.
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Jan 20, 2011
I have a report viewer in a form, and when I run the project I want to watch the values from the fields which they are coming from a DataSet.
The Dataset comes in full into my form. I have install the Report Viewer as Microsoft says BUT!
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Apr 16, 2009
I open a text file with notepad, so the user can see his contents, but if he changes the file, and save it, I would need to update a form.There is a way to watch for file updates?
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Mar 9, 2011
I am working on an application that needs to launch Microsoft Word, and then resume when the user closes Word. The code below should work, but it does not. I get an 'object not set to an instance of an object'
1 Dim pInfo As New ProcessStartInfo
2 Dim P As New Process
3 pInfo.FileName = "C: estLLR.doc"
4 P = Process.Start(pInfo)
5 ''# Here is where it goes bad
6 P.WaitForInputIdle()
7 P.WaitForExit()
I put p into the watch window and it shows a a system.diagnostics.process in the watch after line2, but after line 4 it return to NOTHING. The process launches, but I can not monitor it any longer with lines 6 & 7. Is this a 'limitation' of Visual Studio 2010 or am I making an operator error? The MS Help does not show process available in the 2010 version (it is in Visual Studio 2005 and Visual Studio 2008).
[Code]...
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Jan 23, 2009
How can I make my program watch another process? For example if I open internet explorer it shows the process as iexplore.exe. Now if I wanted to close my program when I closed iexplore.exe how would I do that?
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Jan 22, 2011
I have build using the computer Performance counter a Stop Watch class with a precision of 1 Microseconds ( 1/1000 of a milliseconds )It works good but While building this class I had a problem And found a work around to it. But I am not please with this work around.As you may know, the CLR does not create it's object at the time where you declare them, but when they are first needed. So, while building a class that a timer with such precision, the elapsed time, you will get include the time used by the CLR to build the class. This is a problem since it takes 700 to 800 microSecond to do so.I have try using a code like the one I post here, try using start/stop method, try builing the class as native code API etc. And always the same problem,I get some CLR time include in the elapsed time.The work around I finaly found is to use the fact that the CLS will recycle an object if you dispose of an object and recreate immediately after.
So, what I do, is create the timer, dummy use it, dispose of it and recreate it to actualy do work with it. Here again, I get a small CLR work time of 3 to 4 Microseconds for recycling work.I have no hope to find a better solution using a managed code class, but I am sure that there is a way to put in memory from managed code, an unmanaged class that will be ready to be use by the managed code.If you try to run it, the first time you will click the button, you will get an extra 3-4 microseconds on the result.[code]
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Nov 9, 2011
im creating a stopwatch with 3 textboxs and one button which is restart button the watch automatic start by itself how would i create.
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Jul 22, 2009
Stop Watch With Three Textboxs And Button
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Feb 11, 2009
I want to watch a folder which is in a server (LAN) from my system. I have done it for the local system and it is working fine but I want watch a folder in a server.
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Feb 25, 2009
I'm making a project where I can watch all my films that are put in an access database. I want to order them by category. The different categories are Action, comedy, science-fiction, horror and fantasy.
These categories are put in combo box with a disconnected access. When I select a category, all my data is in the right place and in the correct text box or richtextbox. But when I want to select a new category this is what I get. On this picture I have selected horror first and now horror is there twice. What can I do whit this problem?
This is the code that selects all the data of the category I have selected.
Categorie combo
Private Sub cboCategorie_SelectedIndexChanged_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboCategorie.SelectedIndexChanged
If Not cboCategorie.SelectedValue Is Nothing Then
[Code]....
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Mar 26, 2009
is there away to put a directory watch on an exchange server to monitor if any user delete's or create's an appointment?
I'm creating a service for a windows 2003 server with exchange installed and need to monitor the user's callender's to get information to store in another program.
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Feb 5, 2011
I am trying to watch files in a directory to determine when files are opened/accessed. I thought FileSystemWatcher would do the trick using the event Changed.
Problem is that some applications do not create a lock on the file they open/access or change either the date modified or date accessed (even after fsutil behavior set disablelastaccess 0). Notepad for example. Apparently is makes a copy of the file in memory and plays with it there until you save it. Nor does it update the Date Accessed.
How can I monitor a directory of files and be notified when a file is simply opened/accessed by any program (e.g. Notepad)? Files may be opened from another computer, not necessarily on the computer running the "watcher".
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Apr 5, 2010
We can watch the file action by FileSystemWatcher but it give us to only create,rename,delete or replace action report, can we get file access action ? for example when user double click any file? or when run any application?
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Feb 3, 2010
I am attempting to use the VB.Net FileSystemWatcher class to watch a folder for the creation of Excel files.I do get a response when a .xls file is created in the folder, but am having a problem with the below code:
[Code]...
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Mar 20, 2009
Im wondering if it's possible to make a p2p(Person 2 Person) monitor watch (Team View) and where would I need to start to make such a program?
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Jun 22, 2010
i have been trying to make a program that should restart my server if it crashes. Just some few problems... it won't work.[code]....My problem is that when it notices the program runs, it won't do the process again, and just stop watching for the server crash.
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Jan 1, 2010
I have downloaded windows media player, but I cannot watch any of my movies, I can hear them but not see them. I have tried so many things, I have deleted it, than downloaded the media again, and so on.
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Jul 12, 2010
Does the File Watcher class in VB.NET only watch one folder? Or can I have it notify me of any change in the whole drive?
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Nov 4, 2011
I have developed a tool to watch a folder using the below thread.
[URL]
Issues i am facing
1. Its not working on Samba Server
2. I need it to watch on predefined times only. (i.e., may be every 5 Hrs)
PBL (Visual Studio 2010 Ultimate)
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Mar 18, 2012
I have about 15 text boxes and instead of going to the event handler on each one and enabling a button on a change..
[Code]...
Instead of going through each one and typing that is there a simpler way?
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Oct 23, 2009
I am trying to add a watch window in Visual Basic 2005 (version 8.005)
When I select "Debug" and then "Windows" from the menu, no "Watch" option shows up.
I am new to VB 2005.
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