review the following code; it is not able to trap the error and the code errors out (OleDbException was unhandled) on the code marked with *
Private sub SaveEmployee()
Try
gConn = New OleDbConnection(sConn)
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In my Timer codes[code]...
How can I add this statement or condition?
If the Response is > 1, my timer will tick and go to next item in listbox (means successful).[code]...
i want to enter date in the format of dd/mm/yyyy (30/03/2009) in a textbox. when a click on the button, if nothing or wrong format is enter, will pop up msgbox saying wrong format.
View 14 RepliesHow do I stop the new data row/cell value from being deleted if an error occurs. I am using the DATAERROR event to trap the error as shown below:
Private Sub RoomPricingDGV_DataError(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewDataErrorEventArgs) Handles RoomPricingDGV.DataError
e.Cancel = False
If e.ColumnIndex = 1 Or e.ColumnIndex = 2 Then
MsgBox("Invalid Date. Please Re-enter! ", MsgBoxStyle.Critical, "Room Pricing")
RoomPricingDGV.Columns(e.ColumnIndex).Selected = True
End If
e.ThrowException = False
End Sub
What I want to happen is to go to the cell automatically where the error has occurred and get the user to change it, not have to retype the whole data row or move back to the previous cell. When using the MSHFLEXGRID in VB6, it was fairly staightforward to do.
So I have no idea...ive looked around and can't find anything on error traping when a person doens't enter anything. Here is my code as is now...I trap for if the number goes above 36. now I just need to trap the whitespace
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I was just wondering if it is considered overkill to add:
[code]...
To every sub in your project. And what would be the side effects of this if any.
I have a textbox that is used to add directories to a system folder, each name seperated by a line. If the textbox has text value "Test " that is "Test" & controlchars.newline & "" (not like this is coded, it's typed in), then if i use loop for each part as string in textbox1.text.split(controlchars.newline), the first part will be "Test", the second part will say " " when i run step by step debugger, but if i try and block the addition of a folder by "if part = " "" it does not catch it. I've tried comparing part to "", " ", nothing (which is illogical anyways), and i even tried creating a boolean variable equal to the statment to try and catch it but the program insists that part is not " " even though the debugger tells me that is the value of part.
View 9 RepliesFirst off if this isn't the right section, please let me know where to post or move this thread.After an hour or more of googling this specific error message I received prior to testing my program, I attempted to change my GDI max to 25000, as suggested by most of the topics I found. This has failed to solve the issue.
Basically anytime I attempt to run my program, I end up with this error "Unable to embed ... Not enough storage availavble". Or someting to that effect.
Unable to write to output file 'D:DevelopmentJob_TrackerJob_List_and_TrackerobjDebugJob_List_and_Tracker.exe': The process cannot access the file because it is being used by another process. Job_List_and_Tracker
View 6 RepliesI have a solution with two projects. The main project connects to the second project via a reference, and the reference path is local to my machine. It looks like it references the .exe file.So when I publish the main project (ClickOnce), i get the following error:
Application validation did not succeed. Unable to continue.In the log file, under Error Details, it says
System.Deployment.Application.InvalidDeploymentException (RefDefValidation)
- Reference in the manifest does not match the identity of the download assembly Project2.exe
- Source: System.Deployment
How can I include this second project? Should I publish it, then reference the published files? What do i reference? The .application file?Is there a way to just include this second project, so when I do publish the main project, the second one just goes along with it?
This error first appear to occur randomly. Steps to recreate:Open Visual Studio and load a solution (some files automatically opened) - this is when the problem occurs Close all open files Restart visual studio and load solution (no issues)Open Exactly the same files again, restart visual studio and load solution so files open automatically (problem occurs!)
However, when trying to narrow it down to a single file (that is automatically opened when the solution is loaded), I couldn't reproduce the problem. Now with all the files open again the problem doesn't occur!!! So it looks like it is fixed - though this happened before and eventually the issue came back.
I think it is to do with one of the user controls with DevExpress controls on it - when the error occurs, the designer displays the error. Though I can't reproduce it at the moment to confirm that.
trying to get my hands wet on vs 2010 and i downloaded samples from ms site but when i tried to run some of the DB samples i received this sql error: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) any ideas how to get around on this?
View 5 Replies'pressing F1 key on main form. I dont know how to trap whether user pressed F1 key or not
Private Sub frmMain_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
Dim KeyAscii As Long = Asc(e.KeyChar)
[code]....
I'm using Vs2008 and I have a combox in a Windows form.I woud like to know how I can capture the tab key after the user has select an item in the combobox.
View 12 RepliesError4Unable to open file 'D:ConstruContrWinAppConstruContrWinAppobjDebugConstruContrWinApp.Resources.resources': System Error &H80070020almunji
View 1 RepliesI have developed a windows based application using visual studio 2005 called DMS. On the client side, this application runs on asp dot net framework 2.0. We have created its setup file which has to be installed on the client pc. After the installation of the application, some of the users get the error message as:
DMS.exe - .net framework initiation error Unable to find a version of the runtime to run this application
(I have also attached the screen shot of the error message.) Trouble shooting done by me:
a. I had tried the re-install Dot Net Framework 2.0.
b. Scanned the PC for virus attack.
c. Install dot net framework 2.0 first and then the application.
d. Un-install and re-install the whole application.
But none of the solution works. The only thing that works temporarily is un-install the whole application and re-install it. Then it works for a few hours.
I am trying to connect windows form to oracle database on a remote server through VS 2005 and get the following error:Unable to connect: ORA-12154: TNS
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Originally Posted by errorUnable to copy file "objReleaseVBNET.exe" to "binReleaseVBNET.exe". The process cannot access the file 'binReleaseVBNET.exe' because it is being used by another process.I am using Windows 7 and i have this odd problem during debug (F5-Run).It works only when i Run it for the very first time. After that i am keep getting this odd error message. I played with the permissions for a while but still nothing.
View 9 RepliesWhenever i try to press a button on one form to bring up this one other form i get the error:
"An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object."
The fileupload control works well for files < 4MB (maxrequestlength), but if the file is larger than this the program fails with: - Server error in '/xxxxx' application Maximum request length exceededHow do I trap this so that I can return a better error message? The failure occurs before the Page Load from any callback, so I can't see any way of trapping the error, and I haven't seen any event or property of the Fileupload control that I can set to say "Do this when Max Request Length is exceeded"
View 16 RepliesDoes anyone know how to trap f.i. the SelectedIndexChanged event in order to read the SelectedValue from the ComboBoxColumn?
View 8 RepliesWith the component I am using, I only have a keypress event. So I cannot seem to figure out how to trap the control key. The lower case z is reported as keyascii 90 and the upper Z is 122 but can't get the control to show me when debugging. This is where I'm at (trying different ways, none working) Can someone tell me how to trap a ctrl-z correctly with this keypressevent?
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I have the problem in VBA for Access, but I assume that it is related to Visual Basic as a whole as well.
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I have the problem in VBA for Access, but I assume that it is related to Visual Basic as a whole as well.I have the following code:
public sub NavigateIE
dim ieobj as shdocvw.internetexplorer
ieob.navigate ("Some URL")
end sub
[code]....
How can I link the DocumentComplete event of ieobj to the subroutine named customeventforieobj?
Are there any way to trap key when the DateTimePicker is dropdowned?
I have tryed many ways but no effect.
I have :
Public Class ExcelProcess
Private App As New Excel.Application
Private Books As Excel.Workbooks = App.Workbooks
[Code]....
It says Error : Expression does not produce a value. in sheet.Delete()
The Strange thing is that Microsoft API reference says that it would produce a Boolean, but it doesn't as it is a Sub and not a function.
i am trying to create an sql parameter but i am having an error. it gives me an error like this: Unable to cast object of type 'System.Boolean' to type 'System.Data.SqlClient.SqlParameter'. on all of this line
Dim paramcollection As New List(Of SqlParameter) ' no error on this part but the lines below gives me an error:
paramcollection.Add(New SqlParameter("@CGLCode", SqlDbType.VarChar).Value =
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I have developed a windows based application using visual studio 2005 called DMS. On the client side, this application runs on asp dot net framework 2.0. We have created its setup file which has to be installed on the client pc. After the installation of the application, some of the users get the error message as:
DMS.exe - .net framework initiation error Unable to find a version of the runtime to run this application
(I have also attached the screen shot of the error message.)Trouble shooting done by me:
a. I had tried the re-install Dot Net Framework 2.0.
b. Scanned the PC for virus attack.
c. Install dot net framework 2.0 first and then the application.
But none of the solution works. The only thing that works temporarily is un-install the whole application and re-install it. Then it works for a few hours.
I have do the coding to export the data from DataGridView to Excel. But If am running the code am getting the below error.
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I'm getting this error message when I try and run my program:
[Code]....
I have run this program man times before. I just added a Windows Form InputCrossForm.vb to my project. When I dbl click on the error message I get a message box title bar "Microsoft Visual Basic 2010 Express" with message "The definition of the object is hidden." Not sure what this means nor what to do to fix it.