Com Exception For Excel.Application?
Jan 2, 2012Com exception for Excel.Application?
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.net - Excel Worksheet In Windows Form Application Without Opening Excel Application?
Nov 18, 2011I am converting several VBA projects to Windows form applications. The only problem I have is that some of the functionality of Excel is essential to the application, such as R1C1 formulas. I do not want to instantiate the Excel application or access saved worksheets. All of the data is retrieved by querying Oracle databases. 2-Dimensional arrays are not an option because the columns contain differing datatypes, and DataGridViews are too slow to work with.
I thought simply dimming a Microsoft.Office.Interop.Excel.Worksheet object would be enough, but the program kept failing and upon inspecting the object's elements in debug mode, I found that every value says this:
{"Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.WorksheetClass' to interface type 'Microsoft.Office.Interop.Excel._Worksheet'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{000208D8-0000-0000-C000-000000000046}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE))."}
Windows - Vista Exception In Application "Exception Processing Message"?
Apr 5, 2012Background : I have built a VB .NET application on the 4.0 Framework, part of the primary functionality is the built in AxWMPLib.AxWindowsMediaPlayer which allows us to pass a file path as a URL to the player and then play it through the built in media player. My Development Platform is VS 2010 Pro on Windows 7.
View 1 RepliesC# - Excel Interop Quitting The Excel Application Instance Makes Tests Fail?
Feb 23, 2011I want to encapsulate the use of Excel Interop to make it easier to use somehow in a reuseable library.So far, I have written some tests that work good altogether, except that between each test, I force Excel to quite so that it does have handle on the test file no more in order to be able to delete.Once I quit the application instance between after each of my tests, Excel seems to be no longer responding, causing Windows to display "Excel has stopped working and is looking for a solution"
message. This message lasts a few seconds, meanwhile Excel is closing, causing the hang on the file to occur and my tests to throw an exception like "Cannot access file because it is being used by another process..."
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.net - Exception When Trying Iterate Excel Range.value Like Array?
Nov 25, 2011I tried the following : (VB.Net code)
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.net : Interop Exception When ShowAllData() On Excel Sheet?
Feb 4, 2011I have some filters applied on my input excel sheets, so I decided to remove them using showAllData() method in vb.net.
[URL]
But it is giving a very strange exception on that line : Exception from HRESULT: 0x800A03EC
My code :
sh = myWorkBook.Sheets(2)
' sh is my sheet
sh.Visible = True
[code].....
Exception While Reading Excel Sheet Drop Down Value?
Dec 2, 2009Exception While Reading Excel Sheet Drop Down Value...
View 3 RepliesLate Binding To Excel Causes Exception From HRESULT
Aug 17, 2010I have a VB.NET application which opens Excel and writes data to it. The program works fine in debugging and publishes without problems. The problem I am having is that on some machines the finished program is throwing up the following error: Exception from HRESULT: 0x800A03EC..It happens when the program is trying to communicate with Excel. I am using late binding as this program will role out to our clients and I have no way of knowing what version of Excel they are running.This is the code I am running: (Those variable not in the Dim list are Pubic variables sitting in a seperate module. As I said the code runs fine so I think the problem is the way I am handling Excel)[code]
View 2 RepliesVS 2008 VB / Excel Automation - Throws An Exception On 'PC#2
Nov 3, 2009VB2008 (in VisualStudio) and automation of tasks in Excel. My work env.: PC#1 - WinXP Sp3 with VisualStudio & Office O27k (all US-EN) installed, PC#2 - when I am not at home I use an Laptop with WinXP + O27k (DE) and VisualStudio(US-EN), but the mix of language does not seem to be a problem - at least until now!
In one 'TestBench' appl. I have the following line of: oWB.Names.Add("DR_AppData2", RefersToR1C1:="=OFFSET(AppData!R3C1,0,0,(COUNTA(AppData!C1)-2),1)")
Where 'oWB' is a WorkBook Object and 'Names' refers to named regions in an Excel worksheet. I am adding a new 'Region': DR_AppData2 and assigning a dynamic number of rows.
The above line works perfectly well on 'PC#1' but throws an exception on 'PC#2' and this has really irritated me, and I find no reason for this behaviour! The Project environment and included references / resources are truly identical, because I copy the project data from one to the other. The only real difference is in the object library reference, on 'PC#1' Excel.exe is in English, and on 'PC#2' is in German. Having said that I have also altered the value assigned in : "RefersToR1C1:=" to the equivalent in German, but the error thrown is the same.
I have attached :
1. Screenshot of the error
2. Exception Details
VS 2010 When Working With Excel / Get Exception From HRESULT
Jun 13, 2011The ExcelClass.vb code used to be in a module(Changed it to classes), and I found it online. Unfortunately, I can't find the link .The program is supposed to look through one file (I call it, the donor, cell, or excel throughout the program) and compare the values found in Column C to the values found in column B of another file, called "definitions". If it finds a match, it'll take the abbreviation in definitions and paste it over the value in column B of the donor sheet.The code maybe solid, I think it is, but I can't find out. It crashes with the above error as soon as it comes time to use the getCell function.[code]
View 5 RepliesOpening Excel File,object Disposed Exception?
Mar 12, 2009I am have an exception when I run the following code :
Private Sub MainMenuForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
'Save the Sum of the Existing "Excel" Processes:
For Each Proc As Process In Process.GetProcessesByName("excel")
[code]....
Sql - Diagnosing An OLEDB Exception When Quering Excel 2010
Sep 22, 2009To query an excel sheet via SQL, I used to use either:
Dim excelConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + strPath + ";Extended Properties=""Excel 8.0;IMEX=1;HDR=YES;"""
or
Dim excelConnectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source= " + strPath + ";Extended Properties=""Excel 12.0;IMEX=1;HDR=YES;"""
Now this worked fine until I installed Office 2010.
Now I get a
Microsoft.Ace.OLEDB.12.0 provider is not registered on this machine
exception.
How can I find out the correct connection string/provider?
Save An Excel File After Opening Excel Application?
Jan 28, 2010i'm trying to save an excel file after I open my excel application. This is what I have so far:
'Opens the report
xlPeakDemand.Visible = True
xlPeakDemandWorkbook.SaveAs("C:Documents and
[Code].....
When saving as an xls it works fine but when saving as a htm its a disaster Just a bunch or symbols and stuff. BUT if I go into my xls document and Save As webpage from there, it works fine!
Catch An Exception And Throw A New Exception Which Wraps The First Exception As An Inner Exception
May 8, 2009It is possible to catch an exception and throw a new exception which wraps the first exception as an inner exception: [URL] Also, if I call a function and it throws a certain error, but I catch it, will the calling code's catch handler execute? If so, and it is of a higher exception type, is this not wrapping the exception? eg I can throw exception ex of type IndexOutOfRange, log it but rethrow, catch a higher up exception and do something, or I can throw a new exception and wrap an inner exception like:
View 1 RepliesLoad Information From An Excel File - Exception From HRESULT: 0x800A03EC
Oct 26, 2010Whilst trying to load information from an Excel File I have, I get the following message:
System.Runtime.InteropServices.COMException (0x800A03EC): Exception from HRESULT: 0x800A03EC
from this:
Code:
Dim strFileTeam As String
Dim objExcel As Excel.Application
Dim objWorkbook As Excel.Workbook
[code]....
Can't Display Created Run-time Exception Handler In Front Of Excel Workbook
Mar 24, 2011In the following code I open several Excel workbooks from within the VS 2010 .IDE. I want to Try the open workbook code, then Catch exceptions using a dialogbox as a form created programmatically at run-time. The exception handler works, but the dialog box does not display in front of the workbook. So, the user can't respond to the modal form. If at that point the Excel workbook is shrunk manually to expose the dialogBox which is then dismissed, Excel pops up a "Save Changes?" alert and the VB code does not resume the Sub at the Me.Focus() line
When the workbook Is open Excel is the active application. I think this is why the dialog box is not in front, and I don't know how to solve the problem programmatically.[code]...
Office Automation - Excel Chart - Error: Unhandled Exception Of Type
Feb 6, 2009What I'm trying to do is create an excel chart in a spreadsheet that I've just created using VB.Net code. I get the spreadsheet and chart created fine but then I get this error. An unhandled exception of type 'System.MissingMemberException' occurred in microsoft.visualbasic.dll. Additional information: Public member 'xlColumnClustered' on type 'Integer' not found. [Code]
View 1 RepliesOffice Automation :: Excel Throws Exception In Set_Calculation(Calculation Property)?
Jun 17, 2009Error: System.Runtime.InteropServices.COMException (0x800A03EC): Exception from HRESULT: 0x800A03EC is thrown after execeution of Microsoft.Office.Interop.Excel.ApplicationClass.set_Calculation(XlCalc ulation RHS)
Out of nowhere COM start throwing exception when I set change excel's Calculation property. Line of code that followed set_Calculation was.Workbooks._Open. This used to cause exception every second try. Than I changed order, first open workbook and than set calculation property. Amount of exceptions start decreasing than I added thread.sleep(200) and exception is not thrown anymore. This happens only on one some of user machines while others are fine.Application itself is single threaded so this delay should be of importance if and only if set_Calculation is executed asynchronously. What I'm missing here?
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Use Excel 2003 And Excel 2007 On Application?
Nov 13, 2009how I can use excel 2003 and excel 2007 on my application. I add a reference to Excel 12.0 Object but this one is not compatible with Excel 2007 and i think if i add Excel 11 Object it will not run on excel 2007.
Is there any solution that I can use so that my project can be used with either excel 2003 and 2007?
Access Excel Worksheet Pre Defined With Name Books.xlsx - Exception From HRESULT: 0x800A03EC
May 6, 2010i am new to vb.net programming i am trying to access excel worksheet pre defined with name Books.xlsx through vb.net i have taken a form with one command button i wrote below code in that:
[Code]...
Application Exit Without Exception?
Jan 25, 2012My application exits sometime without any exception. I am using loop in separate thread to read HID device.
Private Sub USBListenServer()
If (readHandle IsNot Nothing) AndAlso (Not readHandle.IsInvalid) Then
Try
[Code].....
Run Windows Application It Says That There Is An Inner Exception?
Mar 6, 2012When I try to run my windows application it says that there is an inner exception problem and I have no clue what this means,
View 3 RepliesAdd Application To Firewall Exception Through Regedit?
Feb 9, 2010Im trying to add my application to firewall exception through regedit but when i add the sub key it doesnt work.
I dont have to have an installer for a chat program because its only 1 file.
FireWall Dir:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesSharedAccessParametersFirewallPolicyFirewall Rules
An Unhandled Exception Has Occurred In Application?
Jan 20, 2011An unhandled exception has occurred in your application??
View 3 RepliesApplication - Run It From The Exe In The Folder - Unhandled Exception
Feb 28, 2012I've been using it for three days, and tried to make my own application. Everything was going okay, it ran fine in the debugger and everything worked, so I assumed there would be no problems. But then when I went to run it from the exe in the folder, it shows me this:
Quote:
System.Threading.ThreadStateException: Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute marked on it.
at System.Windows.Forms.WebBrowserBase.OnHandleCreated(EventArgs e)
[CODE]............
I copied what I think to be the most important part of it. I've been searching around, and it says to do something with the main method, but I have no idea what that means.
JIT- Debugging - Unhandled Exception In My Application ?
Apr 18, 2010activating just In time (JIT) debugging-- I have a propmt that I have an unhandled exception in my application (??).
View 1 RepliesManaging Exception In Multithreaded Application?
Mar 20, 2009I started throwing exceptions on a multithreaded application, and got a mess.There is a good tutorial on managing exceptions in multithreaded applications?
View 4 RepliesSystem.OutofMemory Exception In ASP.net Application
Mar 5, 2010I have a ASP.net 3.5 web application developed in VB.net I am using iTextsharp component to generate PDF document from the ASP.net page.
I am retreving the PDF documents stored in the db and merging them into one PDF. using the memorystream.
But when I try to merge around 1000 pdfs with each containing 2 pages, I am getting Outofmemory exception.
Unhandled Exception Has Occurred In Application?
Jan 2, 2011unhandled exception has occurred in your application
View 7 RepliesVS 2008 Application SqlClientPermission Exception?
Oct 15, 2009I have an application that runs inside my company network in several computers, the application access a SQL Server in another place in the network. I coded the application and everything in my machine worked fine but when put the release version inside the users machines i get an error:Application attempted to perform an operation not allowed by the security policy. To grant this application the required permission, contact your system administrator, or use the Microsoft.NET Framework Configuration tool. Request for the permission of type
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