As 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.
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I have a question of VB event handler and color picker. Now I have a label, and I want when user click it, it pops up a color picker dialog and let user to change the background color of the label. Not sure how to implement this, can anyone give me a direction?
View 2 RepliesI wrote a program in vb.net long time ago. I ran into a problem when I tried to programmatically delete a file. Every once in a while, I get an error saying: Error:mscorlib The process cannot access the file. Could anyone explain to me what causes this error.
View 3 RepliesMy code was working fine when I tried with 3 columns. Now, when I mode columns (13) it throws the error.
View 4 RepliesI want a dialog box to have FULL overridable control over all other windows open within my program. I have done this with my about box but have forgotten what I have done to make it have FULL control over the program, that the user has to either to click OK or cancel to move on with the program.I'm pretty sure it was a property I changed, but after searching numerous times, I'm am lost as to what makes it behave in that way.
View 2 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
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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 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
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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
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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.
Code:
Whenever the textbox says "Default" and I click on the checkbox, the msgbox pops up twice. Any way to fix this?
I am trying to finish up a project and can not figure out what I am doing wrong. Very frustrated with this. I am getting an error "InvalidCastException was unhandled" and I am not getting my calculation. I have changed the program and worked on this for several days and decided to ask for some help. Below is my code.
Form code
[Code]...
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
I have 16 buttons assigned a number on the form, the buttons should go from "" to "4" and back to "" again as clicked. If a button in a row, column, or region is the same it should evaluate as a bad move and provide the user with a message box indicating so. I have this working in a different program but I am now attempting to write efficient code. I must have left something out; I get an error when I click on any button stating my value must be less than infinity in my first for next loop. [Code]
View 4 RepliesHaving a runtime error: I have a simple program, programmed using 2008 version of Visual Basic that uses DirectX 9 runtime; the problem is that when I run the program it says: InvalidCallException was unhandled, the problem code is: device = New Direct3D.Device(adapterNumber, DeviceType.Hardware, ref_form, flags, params).
View 8 RepliesI have come across this problem several times and do not know what is causing it. It's imported and everything. It just doesn't seem to pick it up. My next best bet is something to do with the 'protection level' how do I go about changing it's protection level. I have searched in P2_Gameover properties for it, but do not know what I'm looking for, specifically. Whenever I get this error, I usually just re-import through a picturebox (that's the only way it seems to work) But please, what am I doing wrong?
Picture displaying this error:
I am making a little game for my friend in Visual Basic 2008. It uses 3 files (gamedataidname.txt, gamedataidlevel.txt, gamedataidgold.txt).
When the play button is clicked, I wrote some code to check if the file exists and display the content of the 3 files. This part works fine. But then I have a 'Else' statement to create the files.[code]...
I tried installing my app in another computer and found out that a lot of error messages keep popping up. What can i do to bypass these error messages? something about jit debugger or sumthing. Can i compile the app in such a way that these errors wont pop up?
View 19 RepliesI think that my previous post wasn't what I should have been asking. I think my issue has to do with Convert.ToString in my code I have this 3 times, I have no errors while writing the code, only when I debug it I get the error message "input string was not in correct format"
Private Sub DisplayBill()
lblSlicesTotal.Text = Convert.ToString(numofSlice * Slicefee)
lblFriesTotal.Text = Convert.ToString(numo
[code].....
