I searched, I found another post, but didn't quite understand the answer... Here is what I am working with.I know the connection is good it does update it by 10 then give me the error...
I am using Visual Basic 6
Code:
Private Sub Form_Load()
Dim sql As String
sql = "select * from Stats ORDER BY Hours"
With ADO
[Code]...
is the insert of my code to close a form and it happens to be that when i click on the close button it gives the error "Operation is not allowed when the object is closed"and highlights the adoPrimaryRS.Close() line.
View 7 RepliesI am using an ADODB connection to a Sybase ASE Database for a small app that runs queries and returns the results to a grid, to XML and to Schema file. I recently tried the query on a Sybase script (Between a Begin and End statement) and had an exception when I used RS.EOF which reported "Operation is not allowed when the object is closed." The code works fine for other queries, including those between begin and end statements, so I did some debugging and found that the failure only happens when my SQL script (Which is typed into a rich text box) contains either Sybase variables (ex. @MyTable) or uses temp tables (ex. Select * into #mytemptable from myrealtable). The actual execution works OK (without an exception) but the recordset seems to be closed. A failing example is :
Begin
Declare @Name Varchar(30)
Select @Name = "MY_TABLE"
[Code]....
I'm having difficulty using this code that the tutor has provided for me and have a strange error that only I appear to have. Below is a picture and my code... I have double checked my connection and reference and it all seems to be working fine. Whenever I click on a button within my application when i compile it the error below occurs.[code]...
View 1 RepliesEssentially every time I run my form it tells me that the operation is not allowed when the object is closed and it points towards my recordset. Below is my code in full (given to me by a teacher! not my own) and I wondered if you could tell me what the problem is. As I understand it there is another option to ADODB which is more appropriate for .net.
Code:
Option Compare Text
Public Class Form1
Private m_cnADOConnection As New ADODB.Connection
[Code]....
i have this error when executing "Operation is not allowed when the object is closed" on line rs = cn.Execute(Query)
this is my
Do
tsReadLine = tsR.ReadLine
If Len(tsReadLine) = 0 Then GoTo skip_line
[Code]....
I'm very beginner in vb. I need to connect two forms with ms access. First form is connect with second using(form2.show). My need is when I execute the coding. I got a error on first form " An error occurred creating the form. See Exception.InnerException for details. The error is: Operation is not allowed when the object is closed.
View 2 RepliesI am getting an error "Operation is not allowed while object is closed". On this line of code "Do While myRecSet.EOF = False" here is all my code. First the module/function
Code:
Module Module1
Public coater As String
Public myQuery As String
Public myRecSet As New ADODB.Recordset
Public Conn As ADODB.Connection
[Code] .....
Im trying to take fields from a Products Table and populate a listbox in a userform with the productName field. that works fine. but i also have to open the recordset and the connection. when i run the program, i get an error saying the 'operation is not allowed when the object is open' then it highlghts the bolded line in the following code:
Sub testc()
Dim SQL As String
SQL = "SELECT ProductID, ProductName, RetailPrice, QuantityOnHand " _
[Code]....
how can i get rid of the error? and what is the problem? i've tried closing the recordset in various places in different subs but nothing works. .
I Receive Many UDP Connection From None IP Valid Devices With This Code:
receivingUdpClient = New System.Net.Sockets.UdpClient(Port)
Dim byteBuffer As [Byte]() = receivingUdpClient.Receive(RemoteIpEndPoint)
Now I Want Response Data To Device After Receive Data. I use This Code
receivingUdpClient.Send(receiveBytes, 10)
But Received This Error :
"The operation is not allowed on non-connected sockets."
When I try to run my DLL in Autocad, I got the message below.Application attempted to perform an operation not allowed by the security policy. To grant this application the required permission, contact your.I know there are many threads on this error, but Im not sure about one thing.Can I resolved this on our FilesServer or I have to do something on each computers that will use the DLL ?
View 3 RepliesThis error occurs when I want to add my app to the startup keys
My.Computer.Registry.LocalMachine.OpenSubKey("SOFTWAREMicrosoftWindowsCurrentVersionRun", True).SetValue(Application.ProductName, app)
[code].....
I have this as my transactions code and I'm having an error connection closed . Iv tried fixing it with odb.open but i dont know where should I put it
[Code]...
I'm dabbling with writing a client/server app using sockets, for the first time. I've found some example code for a chat application which gives me some pointers, and I've got that working, but now I am trying to refactor the basic code (the example is all in embedded in forms) into classes but I'm running into difficulties. Basically I want a server application to listen for inbound messages with a general Listener object which will parse the message (which will include a reference so I can work out the address of the computer sending the message).
When a request comes in from a new computer it will create a new object containing (amongst other things) a new TCP connection back to the client for managing and returning messages.The problem is I'm getting the message "The operation is not allowed on non-connected sockets" in my refactored code.The original code (on a form with a single listbox and a background worker) looks liks this :
Imports System.Text
Imports System.Net.Sockets
Public Class Server
[code]....
I get the error on last line of code of the OnConnect procedure when my client application tries to connect. Now I know this worked fine with the original code but my new version of the code fails to set up the connection. I have removed the "background worker" stuff because as far as I can tell all it is doing is updating the display which I don't need to do.
In our VB 2008 we are making a lot of connections to sql server 2005 databases. Is there a possibillity to check with a program or a tool of 2005, all connections are closed?
View 3 RepliesI get this error on the server. I cannot replicate this on my development machine.I get it when i call ExecuteReader, ExecuteScalar or when i try to fill a dataset.I use an oracle database.This, i think, increases when the load on the server increases. Im not sure.i need help fixing this. Please let me know if you need anymore details.The code for ExecuteScalar would be as follows
Public Function ExecuteScalar1(ByVal sExecuteString As String, ByVal sConnectString As String) As String
Dim OrclCmd As New OracleCommand
[code].....
What makes it even harder is that I can't replicate this problem on my computer very consistently. Sometimes I will get the error but most of the time I won't. Basically what is happening is I am creating an IE object which my program then controls for a long period of time. What is happening is, if a user exits the program it calls oIE.Quit() then closes the program. This should close internet explorer and all processes associated with it.
But, the iexplorer process doesn't end up closing. Then when the user tries to run the program again we get this error "System.Runtime.InteropServices.COMException (0x80004005): Creating an instance of the COM component with CLSID {0002DF01-0000-0000-C000-000000000046} from the IClassFactory failed due to the following error: 80004005.".
To fix this we simply close the any iexplorer.exe processes that are open and it will let us create our i.e. object again. This happens also if the program crashes and they try to restart it. I am not sure what is causing this or if I am missing something that has to do with com objects. Here is some code although plugging in this code likely won't reproduce any errors:
'create ie object
oIE = New SHDocVw.InternetExplorer
oIE.Navigate("[URL]")
oIE.Visible = False
oIE.Silent = True
'kill ie object
oIE.Quit()
I am using OLE DB provider to connect to database from my VB 2008 Express edition. This code suppose to filter datagrid as I type letter by letter at the Textbox.
HTML Code:
Imports System.Data.OleDb
Dim ds As DataSet
' Firstly binding all records to DataGridView
[code]....
The problem is that I get this message : Object reference not set to an instance of an object. I don't understand why, because I was using the same code before just for different database and it was ok.
I am trying to seek for a particular record and then delete it afterwards but somehow I get an error that says "Operation is not supported for this type of object". Of course the declaration are on top just below the "Public Class Form1"
declarations just below the public class from
Dim DatabasePath As String = "C:RecordsetsRecordsetRecordsetMyDB.accdb"
Dim AccessEngine As New DBEngine
Dim db As Database = AccessEngine.OpenDatabase(DatabasePath)
[Code]....
I am trying to seek for a particular record and then delete it afterwards but somehow I get an error that says "Operation is not supported for this type of object". Of course the declaration are on top just below the "Public Class Form1"
dbs.Index = "PrimaryKey"
dbs.Seek("=", txtID.Text)
dbs.Delete()
[code].....
During Loading of form I call connectpaybox to show the list in the combobox, but after that it will result in the error "Operation is not valid due the current state of the object"
but the combobox items that was taken from the database shows. I tried
"select CAGECOST from CAGETYPE where CAGENAME like 'Normal'"
where Normal is one of the items in cagename and it works.
Private Sub Paybox_Load(ByVal sender As System.Object, ByVal e As
[Code].....
Ok, i am really in need of finding a way to do this via a string to clob instead of using the update query to to do all.
Dim theXMLCode As OracleClob
Dim OracleConnection2 As New OracleConnection()
Dim dr2 As OracleDataReader
[code].....
Before, my codes are working properly.. But not..I am getting this run time error. What the error means?
Operation is not valid due to the current state of the object.
During Loading of form I call connectpaybox to show the list in the combobox, but after that it will result in the error "Operation is not valid due the current state of the object" but the combobox items that was taken from the database shows. I tried "select CAGECOST from CAGETYPE where CAGENAME like 'Normal'" where Normal is one of the items in cagename and it works.
[code]...
I am having issues with a dictionary object I'm trying to use.
I have this code:
CODE:
Every time I run it, I get this error: Arithmetic operation resulted in an overflow
I am adding to the dictionary like this:
CODE:
Is there anything I am doing wrong?
I wrote the code below which calculates the length of a line on the form and save record. An error occurs when the programme tries to save the record. It gives me "Cannot perform '=' operation on System.Int32 and System.String" error. I checked the data type of "ID"(int), "Microscope"(Varchar), "Magnification"(int) and "Calibration"(Decimal), and they are fine so far as I know.
Code:
Private Sub btnEnd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnd.Click
'Check if the length textbox is not empty
[Code].....
for example i have this code :
Sub Month()
Dim Conn As New Data.OracleClient.OracleConnection
Conn.Open()
Try
Dim Cmd As New Data.OracleClient.OracleCommand
With Cmd
[Code]...
What will happen to the datareader when the Connection is closed ( Conn.close)
Will the Cursor that is used by the datareader be freed ? or will it stay open ?
If the cursor that is used by the datareader is still open , when will it be automatically closed ? or should i just closed it manually ?
Will it cause the dreaded "ORA-01000: maximum open cursors exceeded" ?
I am now trying deserialize my employee objects in my XML document into an instance of a class.Here is the class I wish to create an instance of:
Code:
Public Class EmployeeAdder
#Region "Declarations"
Private _ID As Int32 = 0
Private _Name As String = String.Empty
[code].....
Is it possible to bind a button to an object? I have a situation where I create lots of buttons dynamically and add them to a form, each button corresponds to a record in a database table, I want the button to hold all the info in the record without the need to search for the data each time I press it. I've already have the info in the tag property as a delimited string, but the process of extracting the info from the string is not efficient. if I add one new value I have to add the code to extract that info using string manipulation. I would rather have an object that represents the record so I can access each value directly.
View 1 RepliesI have an "Object reference not set to an instance of an object" error that does not make any sense.I have a form with 2 datagrid views, (dgv1) and (dgv2).During the form load, I load the data for dgv1 and dgv2 without any problems. After the form load is complete, I get an error on the follwoing code.
[Code]...