I am running the same program on two workstations. One reveals no errors while the other shows a "COM exception error: invalid parameter." The offending line of code is shown below.Is there an explanation for the inconsistency?
.SeriesCollection(iRet).Name = "=""Q" & Str(iRet) & """"
I am using VB.Net 2008 Express and trying to build a favorites list for a webbrowser I am working on.I get an invalid parameter error on the line that reads favicon = image.FromStream(stream).[code]the urls are stored in an array after they are taken from an xml file.I checked the url that was being used when the error occurs and it seems fine. I can even navigate to it in IE.The error I get is that "stream" is an invalid parameter, at least that is where it points to.It also shows that stream is a type System.NET.ConnectStream.Stream was originally set to System.IO.Stream.I don't know if this is a problem but it processes several urls before it gets to this one.I am wondering if this may be a permissions issue and the site is blocking the WebRequest or if it is something else.
View 12 RepliesI am using VB.Net code to print barcode label in Zebra TLP 2844 printer. And the printer is connected to system by USB port. When i execute the code i get an error "Invalid Parameter : Name handle" in the line outFile = New FileStream(_SafeFileHandle, FileAccess.Write) . As this is a USB port So i shared the printer and used the UNC path. But still i get the error. Below is the complete code
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i have 2 computers - a Server and a Client pc which is running on local area network with MICROSOFT SQL SERVER 2008 R2 Developer kit at the main pc and Client computer will need to connect to SQL SERVER at main pc using connection string.Let me named server computer as 'MAGNA-PC' and the client pc as 'LAC-PC' and database name is 'db_referafriend' so the code for MAGNA-PC(server) connection string is:[code] i GOOGLE and YOUTUBE for almost 2 weeks before i post . I know that i need to configure the sql configuration manager and enable tcp/ip also add a new port at firewall to allow remote connection also add the sqlserver.exe and sqlbrowser in firewall and I have also chosen "Using both TCP/IP and named pipes" under Remote Connections in the SQL Server 2005 Surface Area Configuration. and all of this doesnt work!
View 10 RepliesI am getting Invalid Cast Exception was unhandled.Conversion from String 'abc' to type 'Double' is not valid in the following line!
If
((xlBook.Worksheets(2).Cells(iRowIndex, iColumnIndex).Value)) = avFoundKeywordds(iSearchText)
Then
The business intent is that user enters the keyword 'abc' and clicks search button . We have defined different keywords in a xls which has 1600 rows and 16 columns . so when finding abc in any of the cells ,it has to return the value of a column#4 where the name is specified !
i have a datagridview that show an access database also there is toolstrip menu i defined the datasource and everything is fine except that when i run the application and edit anything and when i press the save button on the toolstrip an error appear and highlight this: Me.TableAdapterManager.UpdateAll(Me.My_phone_numbersDataSet)
and the error is: invalid operation exception was unhandled
I had a working program a while ago, but now it is giving me an error when I try to insert some data to my Excel-file.I get this error: Old format or invalid type library. (Exception from HRESULT: 0x80028018 (TYPE_E_INVDATAREAD)) For example, one of my Excel referencing codes is:
Dim XL_App As New Excel.Application
Dim XL_WB As Excel.Workbook = XL_App.Workbooks.Open("C:Program FilesIAAExcelitTuntilappu.xls", , True)
Dim XL_WS1 As Excel.Worksheet = XL_WB.Worksheets(1)
The above code used to work, but now it gives me the error...I recently updated my Office from 2003 to 2010. How can I fix it?
Any thoughts on what might cause a thread error like this?Error:InvalidOperationException was unhandledCross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.
Relavent Code:
Private Sub SerialPort_DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
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I have declared two variables as strings strDob and strCurrentDate, Both Variables are for storing dates. StrDob is for storing Date of Birth and second is for Present date. and am executing the following code
If DateValue(strDOB) > DateValue(Date.Today) Then
and getting the error like
Invalid CastException was unhandled
Conversion from string "19/09/1987" to type 'Date' is not valid.
Error in the following code also:
iAge = (CInt(Abs(DateDiff("d", strCurrentDate, strDOB)) / 365))
Invalid CastException was unhandled
Argument 'Date1' cannot be converted to type 'Date'.
Here I need both variables as string itself. because the Dateofbirth is getting from three comboboxes.
I get an "invalid parameter" error back from wmi. just trying to download a file via BITS.
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Trying to run the following
treeval = e.Node.Text
Dim strVal As String = New String("LDAP://10.22.67.21:389/OU=Linkway,OU=Desktops,OU=Devices,DC=domain,DC=suffix")
Dim domain As New DirectoryEntry(strVal & "'DOMAINusername', 'password'")
[code]....
I get an error saying "Invalid dn syntax"
I have a small project I'm working on and from time to time I show it to my friend. He and I both have Visual Basic 2010 Express installed.
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I have created a windows Service which invokes executables on remote machines, waits for it to complete and then proceeds to the next machine on the network.
The Account type for the windows Service is "Network Service". For monitoring if the process is completed on the remote machine, I am using ManagementEventWatcher class. I get the following error when I start the Management event watcher object.
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see from the following function why I would be getting an "Invalid Cast Exception"? More specifically this is the error "Conversion from string "yyyyMMdd" to type 'Integer' is not valid." I am trying to convert a DateTime value from the database to a String with the format "yyyyMMdd" so for example October 22, 1985 would be "19851022".dbReader(fieldName).ToString("yyyyMMdd")Here is the entire function ...
Private Function GetDBReaderDateValue(ByVal dbReader As IDataReader, ByVal fieldName As String) As String
If dbReader(fieldName) Is DBNull.Value Then
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have a form onto which i've place a menu item called Exit. When I click the Exit, i expect it to close the entire application.Here is the code
Private Sub mnuExitApp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuExitApp.Click
Application.Exit()
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I imported an app from vb6 to vb.net It works fine. It has one axmsflexgrid control. Now I want to add another axmsflexgrid control in the same app. I tried to copy and paste from one frame (groupbox) to another and got this error:
"An error occurred while processing this command: Exception from HRESULT:0x800A018A (CTL_E_GETNOTSUPPORTED)"
An inputs on how would I fix this? Or just make a new axmsflexgrid?
i know this may seam odd but I'm getting an error navigating through a datagrid of an invalid cast. The trouble is it is of the same types!! I working on customising some Sage code and in the form there is a datagrid that is populated by a series of Sage.Accounting.Stock.TraceableSOPAllocationItems (a batched stock item allocated to an SOP).
I want to give the user some further information on each item so they can decide which batch and bin to use. I want to go through each item in the grid and then go find this extra information for it. the trouble is when I go to navigate through, My VB.Net code throws the error.InvalidCastException was unhandled by user code, Unable to cast object of type 'Sage.Accounting.Stock.TraceableSOPAllocationItem' to type 'Sage.Accounting.Stock.TraceableSOPAllocationItem'.
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I have an application that I've tested on multiple machines. It runs perfectly on the development machine, but no others. I have itextsharp.dll included and registered in the installer (I used NSIS). On one of the other machines, this was retrieved from the system log:
Application: Evaluation creator.exe Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.InvalidOperationException
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please i have this exception in my project which i do not know how to solve it.The problem i think is not from my codes but it is from a tool box item i am using which is giving me that error if i delete that tool box item from my form this exception is not thrown.The item name is GrFingerXctrl class. This item will enable me to integrate a biometric fingerprint reader in my application.it is from an SDK i downloaded from [URL].
View 1 RepliesI need to use two Invalid Cast Exceptions on one try. I need to to appear when txtNight or when txtRate has an invalid value.
Try
decCharges = CDec(txtRate.Text) * CDec(txtNight.Text)
lblCharges.Text = decCharges.ToString("n")
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I'm using WMI code and VB 2008 to see NIC status. So far the queries are working, but the methods aren't. For example, I'm trying to set a network card to use DHCP, I get invalid function with this code:
Dim classInstance As New ManagementObject("rootCIMV2", "Win32_NetworkAdapterConfiguration.Index='7'", Nothing)
Dim outParams As ManagementBaseObject = classInstance.InvokeMethod("EnableDHCP", Nothing, Nothing)
Here is my problem: I developed one application in VB.Net in VS 2008 Express Edition on MS Vista. I published the application and created the installation setup. Now when I install this application on any Vista machine, it runs without any problems, but if I install it on an XP machine, the installation is clean, but when I launch the application, it ends abruptly without any warnings/error just after the splash screen.
Then to investigate further what I did was that I copied the source project from my VS 2008 Express Edition on Vista to an XP machine having full (VS 2008 Team System) version , and when I try to compile it there (XP/VS2008 Full), I get one error in one of the forms resx file. Incidently this is the same form that gets loaded after the splash screen. So I see there is some correlation between my application ending just after the splash screen and failing to compile the main form of the application. The error that I get reads like: "Invalid resx file. The parameter is incorrect Line 1374, position 5."
I've seen some other responses about this and they talk about interfaces but I'm pretty sure you can do this with classes and base classes but I can't this to work.[code]....When it tries to convert whatever Activator.CreateInstance(t) returns to the base class of type Behavior I'm getting invalid cast exception. That type should be of CharacterController which is defined as a child of Behavior so why wouldn't it let me cast that?
View 2 RepliesI am trying to create the Proxy from the WSDL using wsewsdl2.exe [code]...
But i am getting Invalid cast exeption.Can someone please tell me how to i fix it?
I am using VS.net 2003 with WSE 2.0 V3 and Soap 1.1 installed.
i save image into a database correctly and now when it come to retrieving i get an error message when the photograph column is NULL.Is there any way i can check if it is null then i execute different code else it return the image.This is what i am using for now
Dim barrImg() As Byte
Dim cmdSelect As New SqlCommand("select Photograph from Personal where MyID=@ID", connect)
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Here's my [code...]
On this line "db.jobs2surveys.DeleteOnSubmit(deleteJob2Survey)" I'm getting the following error.
[code...]
What exactly does this error mean and how can I fix this? I can't find much info on Google.
We are trying to implement a logic which we used in vb6 2 years back.User enters a business requirement in text box, we define the keywors in the script and once the button is clicked , it shld luk from the list and display a msgbox of number of keywrods found.
1. Invalid Cast Exception was unhandled error -->Warnings
2.When casting from a number , the value must be a number less than infinity -->Warnings
3.When trying to declare ,variant is not accepting and its converting it into Variant Type. Are these both same?[code]
Dim NSNSRC As String = WebBrowser1.DocumentText
This throws me an error although DocumentText does have a value, I have also tried a .tostring after and it still did not work.
Surrounding Code:
While DocCompleated = False
System.Threading.Thread.Sleep(0)
End While
[Code].....
I am getting an exception and I don't know how to remedy it. The history is that, in my inexperience, I had asked for the creation of an ODBC data source using a remote SQL Server, and specified caching of certain tables.Then I noticed that this was getting complicated and I tried to not have those tables cached.Columns like 'LastEditDate' had gotten added to those tables.I abandoned using ODBC and went with SqlClient instead. I started getting the error described below re "Invalid column name 'LastEditDate'" even though I never refer to or use such a column. I searched my computer for files containing this string and deleted them. The error kept occurring. I removed all the columns called 'LastEditDate' from the SQL Server database. The error kept occurring. I started my Visual Basic.Net 2008 project over with a different name.The error still keeps occurring.Fragment from a class (form) containing a sub called SyRefresh:
Case "STOCKDATA"
sCell = sData.Split(",")[code].....
dc is a datacontext associated with a SQL Server instance on a server somewhere on the Internet.That remote SQL Server is version 2000. As you can see above, I use Linq.
I have a dataset returned after executing a sql query. below is my code to access the returned dataset and I seem to get this error sometimes and not all the time this code executes
Private Sub Timer1_Elapsed(ByVal sender As Object, ByVal e As System.Timers.ElapsedEventArgs) Handles Timer1.Elapsed
Dim currentMethod As String = MethodBase.GetCurrentMethod.Name
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