Error Occurs When Using More Colums
Jun 22, 2010My code was working fine when I tried with 3 columns. Now, when I mode columns (13) it throws the error.
View 4 RepliesMy code was working fine when I tried with 3 columns. Now, when I mode columns (13) it throws the error.
View 4 RepliesI have a VB6 DLL that wraps a call to a 3rd party component. When I call my DLL from VB6, everything works fine, but when I call it from vb.net (2.0 framework targeted - VS2010) I get this error:
AccessViolationException occurred
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.This error only occurs on Windows 7 (Windows XP clients work fine).I've looked this up and all the articles I found talked about the declaration not being correct.I am not declaring any APIs calls though, the 3rd party component is early bound in my VB6 DLL.I can run the DLL, set a breakpoint,and it goes into my VB6 function, but errors calling a function in the 3rd party component.My VB6 DLL takes 3 string and one 32bit numeric (long in VB6) parameters. The 3rd party's DLL function that I am calling is taking a string (bstrDNSID as string is what Intellisense shows in VB6). This is where it errors.
Update: None of the marshalling has helped, so I tried creating a test sub in my VB6 DLL. I hardcoded all the values within the DLL's test sub. It works fine when called from VB6, but gives the same error as above when running from .NET. Also of interest, when I have the VB6 DLL running from the VB6 IDE, I do not get the error when calling the DLL from .NET.
I have an error appearing in my webbrowser, and as there doesn't seem to be a solution to stopping it, i'm attempting to just detect when it occurs, and use sendkeys to press enter.[code]..
View 8 RepliesI wanted a Message Box to appear when a file can't be found, for example. I made a Combo Box (ComboBox1) and a button, this is what the code was:[code]If a file can't be found, I want a message box to appear, not an Error Provider, I tried this code, but it did not work:[code]
View 2 RepliesMy asp.net website logs errors when they occur, but only sometimes shows the line of code where it occurred. Is there a way to find out what line of code my error is occuring on when the line is not provided?My Global.asax logs the error with the following code:
Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
'Get MemberNumber
Dim MemberNumber As String
[code]....
It looks like the checkbox labeled "ckAdmin" is causing this error, but I do not know how to trace it. How should I go about tracing down this error or finding the line of the code this error occurs in?
I have developed serial port communication application using vb 2008 with serial port class.
Previously everything was ok. Now a days error occurs when closing serial port.
At the time of closing there is no receiving data .
Error is "The i/o operation has been aborted because of either a thread exit or an application request"
I am having an issues with my code causing my forum to close after an error occurs during a SaveFileDialog. My problem is if the form closes after an error occurs that doesn't save the file, the person would lose their text they made. If there a way I can embed the code in an If statement or Try catch so it only closes if the file was saved? Here is my
[Code]...
I am currently using Snarl to generate notifications whenever an event / error occurs in my program. How would I go about coding a native VB notification instead of using a 3rd party program?
View 3 Repliesif the rows CurTXId is 0 then I insert new records. and then call AcceptChanges on the PeopleTable.now if I have an error, for example conversion from null to Decimal causes an error and the first insert occurs before the error. now i have a row inserted but AcceptChanges hasn't been called yet.then i click save again and the insert happens again since the rowstate hasn't changed.how should I handle this?[code]
View 2 RepliesAs part of a review of my program on Softpedia, the Reviewer stated the following: If you call on a piece of software and it is not installed on your computer the application will pop up a nasty error message that may discourage beginners. Popping a dialog saying the reason of the error or that the software is not installed on the system would be a great fix.
View 5 RepliesSo, concering my project: I am trying to control an RC Car via Kinect, until now I got it working with key control only (eg WASD). So, I am using a Velleman K8055 Interface Board + the Kinect and VB Windows Forms. So far, so good, I created 4 Forms: menu, info, kinect-controls + wasdcontrols window. The error only occurs for my kinect-controls window (german name: Steuerung.vb) & that's my source
[Code]...
I have an application where I make calls to multiple SQL Server Stored Procedures,keep the user aware that the program is still running and how long the specific SP has been running so that they can abort it if it's taking too long.
My initial attempt was to wrap up each call to the SPs like this example:
Dim cm As SqlCommand = Nothing
Dim Conn As SqlConnection = Nothing
Dim Tran As SqlTransaction = Nothing
Dim PrevTime As Date = Nothing
[Code]...
I have a table adaptor that pulls from the sql database, when I edit the table adaptor query it makes this specific table adaptor not a part of the dataset. I have added a column to my database which will contain an integer, when I try to add this column to the query this error occurs, i am using the configure area of the table adaptor.
Error 'AuditProductsTableAdapter' is not a member of 'MemKingClient.MemKingDataSetTableAdapters.TableAdapterManager'.
I created a simple program which basically launches programs installed on 32-bit system in the C:Program Files directory. I purposely put an .exe line of code in the compiler but that .exe wasn't installed on the system, I was expecting for an error when I tried to click the launch button and I did. NOTE: I already have a beginning If statement and that program is actually installed in the system, works perfectly no errors appearing.
ElseIf lstMultimedia.SelectedItem = "HyperCam" Then Process.Start("C:Program FilesHyperCam 2HyCam2.exe") 'this program doesn't exist in the system"
When the error appeared I looked at it in detail and found it was a system.componentmodel.win32exception type of error, I'm guessing that means a file doesn't exist in the directory I specified therefore the program displays an error.Now what I want to do is display a message box saying along the lines "This program cannot be found in your system" or something like that. But I don't know what the actual syntax/code for it, so far from thinking I have this.
Else : lstMultimedia.SelectedItem = 'no idea what to put here Then MessageBox.Show("This application cannot be found in your system or is installed in a different directory", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End If
I am getting the below error when I click a row in the grid. But this error is raised only in exe, which is installed in client machine, but when I check the same from source code in my machine, i am not getting this error. I am able to locate the record.
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I have a windows service I created that checks for data to post to an off site webservice over SSL. The service checks every 10 seconds for data to send, if there is data it opens a connection to the remote webservice, and closes the connection after 120 seconds (still checking for data to send during this time). The service works fine if a user is RDP'd into the server, but as soon as no one is logged on and the service attempts to push data, I receive the following error:"The underlying connection was closed: An unexpected error occurred on a send."I have tried running the service as a local service, network service, under my login, and under a service account, but nothing seems to work. The PC it is running on is a windows 2003 server (virtualized - vmware)
Protected Overrides Function GetWebRequest(ByVal Uri As Uri) As System.Net.WebRequest Dim oWebrequest As System.Net.HttpWebRequest = MyBase.GetWebRequest(Uri) oWebrequest.KeepAlive = False oWebrequest.ConnectionGroupName = Guid.NewGuid.ToString oWebrequest.ProtocolVersion =
[code]....
I am getting error in the following line of frmContacts.frm. The module code is quite right. I have mentioned the module code here just to give an exact idea .The error line is: .Connection = MyConnection (Wherever it is in the frmContacts.frm)The error read as : Name "Myconnection" is not declared.
Code in Module:
Imports System.Data.OleDb
Imports System.Data
Imports System.Windows.Forms
[code]....
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code]...
The following error occurs : Object reference not set to an instance of an object.
here is my code so far:
Public Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Dim i As Integer
[Code].....
when i click the button, i get a error message saying "Syntax error in INSERT INTO statement". as far as i can tell, i have everything i need to insert a new row into the database, and i dont see why this problem is occuring.
item(0) is an autonumber key field, so that should make a new record by itself, and i have declared the input textboxes as the data() array
ive had to start a new thread since intentions has changed since the original one, and things got confussing..I have a listview called listview1 listview1 has 4 colums already added, wich i added via properties[code]But what i need to do is to go through every item in listbox2, find the username and add it to the username colum (1)
View 11 RepliesI have 2 dgv's on a form that are both alike and even use the same datasource, just one column is different betwenn the two.I manually added the columns and set the datasource and bindings. When I make a change to the properties in one of my dgv's it keeps auto generating the columns I do not need.
View 2 RepliesI want to separate each text into their own Column in VB.net.How do I achieve this?
Each entree is seperated with "|" . My Code:
Private Sub MenuItem3_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem3.Click Dim folder As String = Environment.GetFolderPath(Environment. SpecialFolder.Personal)Using sw As StreamWriter = File.AppendText("My Expenses.txt")[code].....
This is my array I need a bunch of code that will calculate the column total and get displayed once user put in word all
out put
Total domestic: $541,000
Total international: $830,000
[code].....
I'm using LINQ to SQL to select some columns from one table. I want to get rid of the duplicate result also.
Dim customer = (From cus In db.Customers Select cus.CustomerId, cus.CustomerName).Distinct
Result:
1 David
2 James
1 David
3 Smith
2 James
5 Joe
Wanted result:
1 David
2 James
3 Smith
5 Joe
Can anyone show me how to get the wanted result?
I want to separate each text into their own Column in VB.net.How do I achieve this?
Private Sub MenuItem3_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem3.Click
Dim folder As String = Environment.GetFolderPath(Environment.SpecialFolder.Personal)
Using sw As StreamWriter = File.AppendText("\My Expenses.txt")
[code]....
I found this but to no avail:[URL]..I have generic fields and labels that I put inside already predefined table layouts. Some fields need to span rows/columns and I can't figure out how to do it within code (aka not in the designer).
View 1 RepliesI am looking for a starting point Is this formula that would use Excel.Range.Formula =SUM(IF(FREQUENCY(MATCH(B2:B10,B2:B10,0),MATCH(B2:B10,B2:B10, 0))>0,1)) The goal is to insert this fourmula in as colums from A4 to AY4. The array will be variable.
View 8 RepliesI have a datagridview that has 4 colums(ID,Name,Amount) connecting to the database in vb.net and im supposed to do is that whenever the user enter records with the same Name the column Name and the column Id remains its data while the Amount value is either adding or subtracting depending the update situation. Is this possible to do this in datagridview?
View 5 RepliesI have an Array of Column Titles and Column tpyes that i want to add to my DataGridView but dont
know how to 'Cast the string' to the required Column type?
Example (doesnt work but might give you an idea what i an after:[code...]
Adding different types of Colums to a DataGridView when the type starts as a string
View 1 Replies