Whenever i try to press a button on one form to bring up this one other form i get the error:
"An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object."
I am unable to create or open a project in Visual Studio. the error message is Invalid URI: The format of URI could not be determined.
View 2 RepliesWhen i try to install the Visual Studio 6.0 in Vista , am getting following error message,"setup was unable to create a DCOM user account in order to register 'C:programs FilesMicrosoft Visual StudioCommonToolsVS-Ent98Vanalyzrvalec.exe"
View 1 RepliesThis error first appear to occur randomly. Steps to recreate:Open Visual Studio and load a solution (some files automatically opened) - this is when the problem occurs Close all open files Restart visual studio and load solution (no issues)Open Exactly the same files again, restart visual studio and load solution so files open automatically (problem occurs!)
However, when trying to narrow it down to a single file (that is automatically opened when the solution is loaded), I couldn't reproduce the problem. Now with all the files open again the problem doesn't occur!!! So it looks like it is fixed - though this happened before and eventually the issue came back.
I think it is to do with one of the user controls with DevExpress controls on it - when the error occurs, the designer displays the error. Though I can't reproduce it at the moment to confirm that.
I'm trying to add a control on my form and each time an error pops up : "Failed to import the ActiveX control. Please ensure it is properly registered". I'm currently upgrading from VB6 to VB.NET (VB2010 running on Win 7).I installed vb6 on my win 7 PC and i can still add that control on any form - so definitely the OCX is properly registered. My guess here is that VB.NET is unable to create a COM wrapper for that OCX.
View 1 RepliesFor some reason this error started popping up today on one of my projects.[code]...
If I go into advanced compile options and change it to not generate and debug info, my project compiles fine.
I have tried setting the permissions on the Release folder to full for everyone, so I would assume it's not a permissions issue. Also, I don't see anything in my log files that would provide me with more information about the issue.
What is the Best way to create scheduler ?
I can think two ways,
1) to create endless loop that keep checking for time of day, so if i have an event (stored in my DB) that should be execute @ 14:30 the loop will compare in every loop the current time against the DB time so when the current time will be 14:30 the event will be executed
2) the same as above just using Timer instead of endless loop.
the problem is that both methods seems to be inefficient because at least 95% of the checks will be for no use.
so is there any methods or some way in VB.NET to raise an event in a specific hour without keep checking the current hour every second ?
Following this tutorial: http:[url].....It works in a test project of mine, but in my production project I get the following error: Server Error in '/products' Application.
Unable to create type 'Photocreator.ThemedPageAdapter'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Exception: Unable to create type 'Photocreator.ThemedPageAdapter'.
Source Error: An unhandled exception was generated during the execution of the current web request.Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[Exception: Unable to create type 'Photocreator.ThemedPageAdapter'.]
System.Web.Configuration.HttpCapabilitiesBase.GetAdapter(Control control) +889
System.Web.UI.Control.ResolveAdapter() +214[code].....
This appears on all pages, both projects are using framework V4.
While I reading a sample I found this code which I could not Find its functionPrivate Sub LoadList(ByVal lst As ListBox, ByVal typ As Type)lst.DataSource = System.Enum.GetNames(typ)End Sub Actually I understood that This code create a method to do some thing as I think to list some thing but what is DataSource and what isSystem.Enum.GetNames(typ) and I never created a method before with (ByVal 1st As ListBox, ByVal typ As Type)
View 2 RepliesNone of the explanation in the forum have worked, even though this has been asked many times.[code]It has been built, and registered with regsvr32. It returns the error message 'Entry point not found'.VBA recognises the Function but cannot run it.
View 5 RepliesI am using trial version of VS2008 in which I am not able to create tabs for pages
View 4 RepliesHow to display zeros after decimal place in numbers in Listbox?
View 3 RepliesI have used Visual Basic 2008 for a while now and i have never came across this problem, when i try to build my application i get the following two errors...
Quote:
Unable to copy file "objReleaseParent Pro.xml" to "binReleaseParent Pro.xml". The file or directory is corrupted and unreadable.
AND
Quote:
Unable to create XML documentation file 'E:Parent Pro - TRIALParent ProobjReleaseParent Pro.xml': System Error &H80070570&
I can run in Debug no problem, but i need to publish to a web server and i get the same problem...
I want to be able to drag the form by click on the form.... not by clicking on the bar...
The formborderstyle is at None.
I'm new to VB.NET, and have set myself a little challege to learn VB.NET, I was wondering if you you guys new any really good tutorials on how to create a effective MDI Text Editor?, Ive been able to create a simple text editor, however the next step is to use the MDI to be able to have mulitple windows within one form
View 5 RepliesThe below code is suppose to create a database and a table with a column "FirstName" which is assigned a value "James"
Imports System.Data.SQLite
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
But for some reason the app only creates a a database which has a size of 0 bytes. Why is it not working . I am using I am using SQLite ADO.NET Provider. , VS 2010, Winforms
Error4Unable to open file 'D:ConstruContrWinAppConstruContrWinAppobjDebugConstruContrWinApp.Resources.resources': System Error &H80070020almunji
View 1 RepliesI have developed a windows based application using visual studio 2005 called DMS. On the client side, this application runs on asp dot net framework 2.0. We have created its setup file which has to be installed on the client pc. After the installation of the application, some of the users get the error message as:
DMS.exe - .net framework initiation error Unable to find a version of the runtime to run this application
(I have also attached the screen shot of the error message.) Trouble shooting done by me:
a. I had tried the re-install Dot Net Framework 2.0.
b. Scanned the PC for virus attack.
c. Install dot net framework 2.0 first and then the application.
d. Un-install and re-install the whole application.
But none of the solution works. The only thing that works temporarily is un-install the whole application and re-install it. Then it works for a few hours.
I am trying to connect windows form to oracle database on a remote server through VS 2005 and get the following error:Unable to connect: ORA-12154: TNS
[Code]...
Originally Posted by errorUnable to copy file "objReleaseVBNET.exe" to "binReleaseVBNET.exe". The process cannot access the file 'binReleaseVBNET.exe' because it is being used by another process.I am using Windows 7 and i have this odd problem during debug (F5-Run).It works only when i Run it for the very first time. After that i am keep getting this odd error message. I played with the permissions for a while but still nothing.
View 9 RepliesI was just wondering if it is considered overkill to add:
[code]...
To every sub in your project. And what would be the side effects of this if any.
review the following code; it is not able to trap the error and the code errors out (OleDbException was unhandled) on the code marked with *
Private sub SaveEmployee()
Try
gConn = New OleDbConnection(sConn)
[Code].....
I have a Azure worker role that needs to use the cache in AppFabric. When run locally (Win7x64,VS2010) pointing at the cache in the cloud, it works fine.When I deploy the same package to the cloud (again pointing at the same cache), it produces the following exception:
Message: The type initializer for 'Microsoft.ApplicationServer.Caching.DataCacheClientLogManager' threw an exception.
Exception Type: TypeInitializationException
StackTrace: Microsoft.ApplicationServer.Caching.DataCacheClientLogManager.Initialize(DataCacheLogSink logSink)
at Microsoft.ApplicationServer.Caching.DataCacheFactoryConfiguration.Initialize(String clientName)
at CommunicationRole.CacheUtil.GetCache()
Having looked at the code, this is happening when this line of code is hit:
Dim configuration As New DataCacheFactoryConfiguration()
Nothing runs after this line is hit. As I've said, the configs between local and cloud are the same. I use the cache with the credentials as a session state provider in a web deployment so I believe the cache and access to it are good.My build machine has the November 2011 release of the Azure SDK, and Azure AppFabric SDK 1.5 installed.
The method to get the cache is as follows:
Imports System.IO
Imports Microsoft.WindowsAzure
Imports Microsoft.WindowsAzure.ServiceRuntime
[code].....
I have :
Public Class ExcelProcess
Private App As New Excel.Application
Private Books As Excel.Workbooks = App.Workbooks
[Code]....
It says Error : Expression does not produce a value. in sheet.Delete()
The Strange thing is that Microsoft API reference says that it would produce a Boolean, but it doesn't as it is a Sub and not a function.
i am trying to create an sql parameter but i am having an error. it gives me an error like this: Unable to cast object of type 'System.Boolean' to type 'System.Data.SqlClient.SqlParameter'. on all of this line
Dim paramcollection As New List(Of SqlParameter) ' no error on this part but the lines below gives me an error:
paramcollection.Add(New SqlParameter("@CGLCode", SqlDbType.VarChar).Value =
[Code].....
I have developed a windows based application using visual studio 2005 called DMS. On the client side, this application runs on asp dot net framework 2.0. We have created its setup file which has to be installed on the client pc. After the installation of the application, some of the users get the error message as:
DMS.exe - .net framework initiation error Unable to find a version of the runtime to run this application
(I have also attached the screen shot of the error message.)Trouble shooting done by me:
a. I had tried the re-install Dot Net Framework 2.0.
b. Scanned the PC for virus attack.
c. Install dot net framework 2.0 first and then the application.
But none of the solution works. The only thing that works temporarily is un-install the whole application and re-install it. Then it works for a few hours.
I have do the coding to export the data from DataGridView to Excel. But If am running the code am getting the below error.
[Code]...
I'm getting this error message when I try and run my program:
[Code]....
I have run this program man times before. I just added a Windows Form InputCrossForm.vb to my project. When I dbl click on the error message I get a message box title bar "Microsoft Visual Basic 2010 Express" with message "The definition of the object is hidden." Not sure what this means nor what to do to fix it.
I seem to have broken something I get this error Unable to cast object of type System.EventArgs' to type 'System.Windows.Forms.KeyPressEventArgs'.
my code:
Private Sub ListControl_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListControl.SelectedIndexChanged
[code].....
I have a problem with my webserver connecting to SQL server.I have setup the connectionString and everything is okay. Except that I kep on getting the following error message:
Logon failed.Details: 01000:[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionRead (recv()).Query Engine Error: '08S01:[Microsoft][ODBC SQL Server Driver][DBNETLIB]General network error. Check your network documentation.'Logon failed.Error in File C:WINDOWSTEMPCouncilDistrict {4F892A8B-2AC6-4302-8A58-1466157C3ED7}.rpt:Unable to connect: incorrect log on parameters.