When I run the program with maximum attempt of 3 with correct username and password, Illegal user will pop up,,,i really dont know what to do.illegal user must be pop up when i already attempt " try again " then another "3attempt" then the username or password are wrong.[code]
View 3 Replies
I have written a code to take complaints and give that complaint a number automatically. For that i have created a "fno" named variable in settings.but somehow i cant change the value of it and i get this error "Attempt to access protected memory"
View 1 RepliesWhen i run the debugging tool for visual basic my computer crashes (Blue screen). it's rather constant with the VB forms, even ones without code at all... Any help on the matter? All the forms were originally built on this computer but don't work any more, they however work fine on other computers so it has to be my computer.
View 7 RepliesExceptions can have different degrees of impact on a program. For example a program should probably abort if OutOfMemoryException is raised, but it is possible to safely and appropriately handle System.Data.SqlClient.SqlException without putting the program in an unknown state.
I do understand that any exception has the potential to put the program in an unstable state if it is not properly handled. Are there exceptions that should never be handled beyond simply logging and throwing up the stack?
I've been trying to follow the examples I've found online and, well, I can't really get my head around what I've done wrong.So, I have a simple piece of code to search for a machine in AD, as so. [code]
View 5 Repliesi have made application in vb.net which access the MFC Regular dll and it works fine if i run application from windows xp but when i run same dll from windows 7, it gives me above error.
View 3 RepliesAt the momment of the creation of the my connection string a receive the following error:
Format of the initialization string does nor conform to especification starting at index 144
why is the datareader closed? I had to change this from a stored procedure to dynamic because our IT guy was encountering trouble changing the sp permissions.. so there's definitely a time factor
Dim cmd3 As New SqlCommand
cmd3.Connection = connect
Dim dr2 As SqlDataReader
[Code]....
In a nutshell...I have developed a site in ASP.Net and VB.Net which allows a user to create an order and submit it to a SQL Server backend database.
When the order is placed...an xml file is also produced, showing the items that have been ordered...which is then loaded in to a program to update stock quantities.
The code I have is as follows:
Public Sub butSubmitOrder_Click(sender As Object, e As EventArgs) Handles butSubmitOrder.Click
Dim sqlConn As New SqlConnection
[Code].....
I am not sure why this code doesn't work. I have follow according to the table field data and it I am still unable to get the SQL Datareader to work. I have checked the tables and all datafields, everything is correct. But I still am unable to read data from the database.
Dim connectionString = ConfigurationManager.ConnectionStrings("CleanOneConnectionString").ConnectionString
Dim myConn As New SqlConnection(connectionString)
myConn.Open()
Dim cmd = "Select * from [Member] where Email = @Email"
Dim myCmd As New SqlCommand(cmd, myConn)
[Code] .....
When I use the code Dim di As New IO.DirectoryInfo("C:")it works fine, but when i use a string variable named "infos" i.e.Dim di As New IO. DirectoryInfo(infos)which takes an input from user, it gives me an ArguementException "Illegal Characters in Path".I tried replacing the variable, checked its value in the msgbox which is fine, but the double quote is added directly when it executes the IO.DirectoryInfo line and throws an exception. (Check the attachment)I have also tried infos.Replace("""",String.Empty) to remove the possible double quote, but it still holds that double quote.And when I use the same variable "infos" with substring to get the Drive, it works fine
View 27 RepliesI have this code to copy directories[code]...
View 2 RepliesI have a CD that have some folders with illegal names like : <<setup>>, null ,etcThese folders contact some files that run properly. I want to run or copy them but I can`t.I use System.Diagnostics.Process.Start(Path) and also FileCopy but it return an error :Illegal characters in path. Is it possible to copy these files from these kinds of folders ?
View 6 RepliesI have a strange problem in my VB.NET project when I want to compile it as x64. If I set the target CPU to Any CPU, it will be fine and on x64 systems it will run as x64. But if I set the target CPU to only x64, my project will show up some error/warnings and won't compile at all, here are them:
Error 1 : An attempt was made to load an assembly with an incorrect format
Warning 2 : Possible problem detected while building assembly 'x': Referenced assembly 'mscorlib.dll' targets a different processor
Warning 3 : Possible problem detected while building assembly 'x': Referenced assembly 'System.Data.dll' targets a different processor
Warning 4 : Possible problem detected while building assembly 'x': Referenced assembly 'System.EnterpriseServices.dll' targets a different processor
This is very strange, those are system assemblies and my project is .NET Framework 2.0. How they can run when my application is set to any CPU but not at x64 only?!
Whenever I run my service it never responds, I know it isn't the service as I have one similar running in a different aspx file running. I've looked into it and it's something to do with the web.config file but I don't know where. I was given a small web config file however when you put it in the place it says it doesn't like one specific line of coding in it. This is the error I am getting:
[Code]...
I am gettting the following 2 errors:
Invalid attempt to call Read when reader is closed and sometimes Invalid attempt to call MetaData when reader is closed when attempting to read from a sqldatareader object. What I want is to list groups in listview. The last column is "Total Numbers".[code]...
It works ok for the first row but after that the first error generates. I don't want to include the COUNT function in the main sql cos then i would be required to group the rest fields (there are 9 of them totally). I tried MARS but it don't work at all in my connection which is like
"Invalid attempt to call Read when reader is closed." is returned when trying to use a SqlDataReader in a Thread or BackgroundWorker (Do While z.rdr.Read() in the bold sections - I know this code does the same thing twice....). I have looked at a few forum posts but I did not find a method to keep the SqlDataReader open when passing the arguments. How do I thread the SqlDataReader loop?
[Code]...
In a program I am writing (in VB.NET, 2008), I have 2 classes, "Receipt" and "Group", each with similar properties, both implementing a custom interface entitled "IIDUser". In my program, I have a number of lists of "Receipt" and "Group", declared like:Friend receipts as List(Of Receipt)
I have written a few functions that apply equally to managing both lists of receipts and groups, declared like this one:Friend Function getNextAvailableUserLabel(ByRef theList As IList(Of IIDUser), ByVal startLabel As Short) As Short
Then called like this:getNextAvailableUserLabel(receipts, s)
I did all this in an attempt for interface-based polymorphism, as I thought writing 2 identical functions (except for that one would be for lists of receipts while the other for lists of groups) would be bad practice (and waste time). However, I get an "InvalidCastException" during runtime. It is explained, "Unable to cast object of type 'System.Collections.Generic.List`1[Receipt_Sorter_v2.Receipt]' to
[Code]...
i am using visual studio 2005 check my code and let me know what i am doing wrong
[Code]...
Can you maybe tell me what is wrong with this code?I get an error on the line were the writing is in red.
db.OpenConnection()
strSQL = "SELECT * FROM ChaletBookings WHERE BookingNo = '" & strBookingNo & "'"
dr = db.getData(strSQL)
[code].....
I am doing some url redirections in a project that I am currently working on. I am new to web development and was wondering what the best practise was to remove any illegal path characters, such as ' ? etc.I'm hoping I don't have to resort to manually replacing each character with their encoded urls.
I have tried UrlEncode and HTMLEncode, but UrlEncode doesn't cater for the ? and HTMLEncode doesn't cater for '
E.G. If I was to use the following:
Dim name As String = "Dave's gone, why?"
Dim url As String = String.Format("~/books/{0}/{1}/default.aspx", bookID, name)
Response.Redirect(url)
I've tried wrapping url like this:
Dim encodedUrl As String = Server.UrlEncode(url)
And
Dim encodedUrl As String = Server.HTMLEncode(url)
I'm getting this error while using stream writer...I've double checked the strings, path and file name it's all look fine.. any idea when this error is usually rise ?here is the problematic code
[code]...
I'm getting this error while using stream writer...I've double checked the strings, path and file name it's all look fine.. any idea when this error is usually rise ?
Dim objReader As StreamWriter
objReader = New StreamWriter(filesPath & "BINMEALS.DAT")
objReader = New StreamWriter(PadString("0", reader.Item(0).ToString(), 4) & _
[code].....
How to protect my vb project from illegal copy
View 10 Repliesi have a list box or directory paths, the program basically copies the directory to a selected destination and moves down the list to the next path and copies that path. I'm having a few problems with this, but mainly this one where the application errors out and stops completely with this error:
"Illegal characters in Path."I would really like to address this and get it resolved, or is there anyway it can report this, but move on to the next path in the ListBox?
We have a construction company and I am designing a program in Visual basics for it. This program is intended to be installed only on the computers in our office ( its not going to be distributed ). There is always a risk that one of our employees will take our software and distribute it . Is there anyway to prevent this. If not how can we make this as difficult as possible?
View 1 RepliesHow to protect my vb project from illegal copy
View 1 RepliesI'm looking for a solution that will search a given directory and if it finds any illegal Windows file names it alerts the user:
/ : * ? " < > |
But I have no idea where to even start.
I know this isn't a vb.net question per se, but I hoping that somebody else out there can shed some light on my problem. I have a query that looks like this:
" select count(*) from OBJECT_DESCRIPTION " & _
" where INSTALLATION_ID = @1 " & _
" and SHAPEFILE_ID = @2 " & _
" and SDS_REC_ID = @3 "
I assign the above query to the commandtext of an OracleCommand object. I'm getting the infamous oracle 'illegal variable name/number' error when trying to execute the following code using the above:
[Code]...
I am using the following code to get search results from The Movie Database.org using their api.
Dim xmltempdir As String = My.Computer.FileSystem.SpecialDirectories.MyDocuments.ToString & "cwbrowser emp"
Dim stylesheetlocation As String = xmltempdir & "searchresults.xslt"
Dim request As HttpWebRequest
Dim response As HttpWebResponse = Nothing
Dim reader As StreamReader
Dim result As String = vbNullString
[Code] .....
The line which is coloured red is the problem line. 'htmpath is shown as "C:UsersColinDocumentscwbrowser empsres.htm" which is correct.
Why I get the Illegal Characters In Path error.
