Web Browser URL Strings "An Error Occured. Returning To The Autowatch System In 60 Seconds..."?
Jan 3, 2011
It checks if the webpage in the web browser control has crashed. The website crashes alot. I want to acomplish this by checking the text of the webpage for vital keywords such as "ERROR" or "Could not connect:" or "An error occured. Returning to the autowatch system in 60 seconds..." The code I have so far is below.
Dim myText As String = Me.WebBrowser1.Document.Body.InnerText
If myText.Trim().StartsWith("Could not connect:") Then
WebBrowser1.Navigate("http://www.enhanceviews.net/view/config_check.php")[code]....
The page refreshes every 5 to 120 seconds. The timer gets activated 10 seconds into the program's launch. It refeshes the code above every 5 seconds(to minimize CPU usage). However, it crashes and gives the error "NullReferenceException was unhandled". This could be because the page keeps on refreshing or the page is php and has 2 iframes. How do I fix this?
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Sep 28, 2009
I wrote a POS system a few years back, about 5 Then updated it about 2 years there after, so it has been running without problems for about three years now.All of a sudden of saturday, The following error comes up, System.outofmemory exception in mscorlib.All the system does is run the POS. Its not connected to the internet, nobody installs anything on there.And to make it worse, I now specialise in web strategy, and am a 'bit rusty' when it comes to vb.net applications.
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Apr 15, 2008
I have written a lil program that takes input from the serial port, loads it to an array 6 by 100 and then saves it in an XML file. If i run the program more than 2 hours i get an exception of: "System.OutOfMemoryException occured in mscorlib.dll" One of the suggestions is , if you are creating an array make sure the size is correct. Here is my Array:
[Code]...
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May 15, 2010
I have two Datagridviews, Datagridview1 populates from and excel workbook the user selects. After that the user does a verification on the data. The Requirement I have is for the two grids to mark any records in yellow that are the same so the user knows what needs to be done.
I did the code to match the Cell Contents as there was no other way.Datagridview2 is the sartting point, the value in colum 9 is what needs to be found in Datagridview1 so i loop through the rows, colums by column, It finds the first lot and marks them yellow but then stops with the error. It does not run through all the entries.
My Sample code:'Button click event calls te public sub Datagridview2RowCounter
'Declare Current row position of grid 2
Dim Datagridview2CurrentRow as integer
'What text it should find and mark
Dim BookData as string
[Code]...
This is basicaly what i did but it stops after the 7th or so time it passes through all the code. I have more that 3500 rows of data to verify each time the workbook is opend, that is why i need to mark the Cells in yellow so i know what has been done.im stuck, everything works fine in the whole app, from importing data from excel into datagridview to the marking of other fields for some other reason, This is the ons that does not want to work.
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May 29, 2009
I get this error when I try to read data over the serial port using a program that I have written in VB.NET n unhandled exception of type System.Reflection.TargetInvocationException' occurred in mscorlib.dllAdditional information: Exception has been thrown by the target of an invocation.he code which I think causes this error is as follows :
Try
COMPort.Open()
Catch ex As Exception
[code].....
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Nov 2, 2011
i am developing a windowsService called MyFirstWindowsService. And also i created a setup project for my windows sercive.it installed successfully. But i am unable to start. While starting it shows error like "An unhandled Exception (System.ArgumentException) occured in myFirstWindowsService.exe"
specificaly it tells invalid path "H:".
filestream.Close()
[code]....
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Mar 18, 2009
I have some code that takes a screen capture of my monitor. This code seems to work perfectly OK and can take multiple screen captures, apart from when I do a Print Screen using the keyboard or open SnagIT 8, when I then try to run my code again I get an error "A generic error occured in GDI+" I am at a bit of a loss, I have had a look on the internet, but everything I seem to find appears to be related to web apps. and access permissions. This is a window based application and therefore can not seem to find an answer.[code]
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Aug 19, 2010
I've got the coding below to make a screenshot and store it in a jpg file`.. this works fine on my computer with vb.net installed. However when I tried running it on an other computer it gave me this exception:
'a generic error occured in gdi'
'the coding
PHP
Dim screenImage As New Bitmap(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)
Dim g As System.Drawing.Graphics = System.Drawing.Graphics.FromImage(screenImage)
[Code]....
I've read on internet that this is a write permission issue or it has something to do with the stream. Anyway I dunno how to alter the coding so that every user can make a screenshot.
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Nov 18, 2011
i try to save image to a folder on a server. i load the image from a fileupload control, resize it and save to the folder. this works fine when i run from Visual studio. But when i deployed to the server, i get the error: "Generic Error Occured in gdi+". In trying to solve this, i give network service and asp.net accounts permissions to the folder.
Public Function SaveEntityImage() As Boolean
If fuEntity.PostedFile IsNot Nothing AndAlso fuEntity.PostedFile.FileName <> "" Then
[code]....
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Feb 23, 2011
Failed to Load Control <ControlName> from. . Your version of may be outdated. Make sure you are using the version of the control that was provided with your application."
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Oct 28, 2010
I am making a small report for when an error occurs in our application, in that report I provide myself information of all the ids and stuff and send it to my email. What would also be very handy is to get hold of the sub of where the error has occurred, is this is possible?
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Jun 22, 2010
I am working on VB.Net project. All was well until I started getting the following error while trying to view Forms ...
The error says : "An error occurred while parsing EntityName: Line 4 Position 42"
All code is fine not logical problems..but the came suddenly and this error in all the forms...Projects runs perfectly but I am not able to see Forms Designer...
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Mar 9, 2009
I'm having trouble passing strings to a C++ DLL from my vb.net program. I get constant Read/Write memory error exceptions. My C++ code is as follows:
Code:
char * get_signal_desc(char * dev)
{
bool status;
char * desc;
[Code]...
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Mar 15, 2012
Heres what my app is trying to do:
[Code]...
The guy who originally developed this program is ridiculously BAD at collaborating with me on this. He is currently looking into it but he hasnt even called me back about it and this is of the most importance as today the 2012 member cards start getting printed and they wont print!
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Jan 30, 2009
I read an image from the database and displayed it in a picture box...works fine...here is the code for that...[code].....
It throws an error on line 2 saying "A Generic Error occured in GDI+."
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May 22, 2011
On my program I am making a web browser and I want it to take screen shots of a web browser every X seconds. (X = any amount of seconds that the user can type in into a text box.) Then can it be saved to any location on the computer that the user can pick?
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Apr 8, 2010
I am storing some user settings by the very handy My.Settings classes in VB.net and it seems to be taking a mixed case string (a file path and filename) and returns it in all upper case.
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Mar 29, 2012
I am trying to call an external C++ function using VB.NET (answers in C# are fine, I can convert back) which returns a list of device names. This comes in the form of a pointer to a null-terminated array of null-terminated char arrays (correct me if I've misunderstood what I'm dealing with) with a function signature:
long GetNames(char*** names)
Most of the answers to similar questions I've found have involved something more like:
long GetNames(char** names, int length)
It appears from what I've read that I need to give it an IntPtr but I'm uncertain as to how this should be initialized, and in my case I don't know the length of the array. At the moment, in the VB module, I have:
<DllImport("MyExternal.dll", CallingConvention:=CallingConvention.Cdecl)> _
Function GetNames(ByRef names as IntPtr) As UInteger
End Function
I've tried calling the function by passing an IntPtr initialized as IntPtr.Zero or using Marshall.AllocHGlobal, but I always get an AccessViolationException.
Any ideas on how I should be calling this function and how I get the return value into a managed string array would be greatly appreciated.
EDIT: I've found a sample function call in native C as follows:
char **tmplist;
GetNames(&tmplist)
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Sep 17, 2008
I am trying to create bitmap with my text and transformation. I am sure that there is no error in my code. Because this code is worked previously. Here is my code.
[Code]...
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Apr 25, 2010
When starting the default browser like this: Dim trgt1 As String = [URL]
[Code]...
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Oct 12, 2011
I have a funtion that returns a generated PDF file but the problem is it shows it in the current browser window... I need for it to open in a new window. I dont see how I can pass it into a view for displaying where I could simply use target: _blank.
Function showUserPDF(ByVal pdfName As String) As ActionResult
Dim _fileName As String = pdfName
Dim _path As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) +
[Code].....
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Sep 19, 2011
I am attempting to make a browser. I have a menu drop-down where the user can choose one of a couple colors. I set up each button, panel, text, etc... as my.settings. I have tried to write the code two different ways, but neither works. How would I fix this?
code:
I keep Getting the Error: Value of type "System.Drawing.Color"cannot be converted to 'String'.
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Aug 27, 2011
I want to check for a system update every .25 seconds. It's very important that it is always .25 seconds apart. I was trying to use do until/while...loop, but it wouldn't let me insert a delay. Does anybody know how to do this/where I could learn to do this?
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Aug 12, 2009
I wrote the following code in vb.net:-
cmdOnClick.CommandText = "SELECT * FROM patients where ID=" & grdPatients.Item(grdPatients.CurrentCell.ColumnIndex, grdPatients.CurrentCell.RowIndex)
it shows the error operator "&" is not defined for types "Strings" and system.windows.forms.datagridviewcell
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Apr 4, 2011
I am creating auto mailer but i am having problem on BCC. BCC is listed on checkedlistbox. Image ([URL]) I would like to send on those email address every 5 seconds. but my problem is i'm always getting an error message "a recipient must be specified" Here's my code...
[Code]...
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Oct 18, 2011
I have asp.net web site. I added reference of Microsoft.Practices.EnterpriseLibrary.Logging.dll to the site. in web.cofig file, I defined like below.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
[code]....
When I run the code exception happening below place.
defaultWriter = EnterpriseLibraryContainer.Current.GetInstance<LogWriter>();
//errr: Activation error occured while trying to get instance of type LogWriter, key ""
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Jan 1, 2010
at the time of recoredset movenext out of memory error occured in run time data have 3800000 lakh recored
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Apr 14, 2012
I want to have My.Settings.Delay in seconds not milliseconds adding the 000 for the user. I tried My.Settings.Delay + 0 + 0 + 0. but can't sort how to do this.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim var As Integer
Dim startVal As Integer
[code]....
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Feb 12, 2009
when i run code after 60 sec it display following error what is this error and how to eliminate ?ContextSwitchDeadlock was detected Message: The CLR has been unable to transition from COM context 0x2040a8 to COM context 0x204218 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
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Jun 30, 2011
I want to convert seconds such as 254565443 seconds to hours, minutes, and seconds and thought if I could remove the decimal and the numbers behind it and not change the number in front of the decimal then it would work.
dim seconds = 254565443
dim Hour
dim minute
[Code]....
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