i am working on my A2 coursework and trying to get the log in system working. I wrote a query where i ask the databse if there is a username entered and password. if there is, it will return the username. if there isnt it will stay empty. But how do i do some kind of if statement that if there is the username returned that it will let the person log in ? im really bad at explaining things here is my code.
So basically all i want is how do i make it to see if there is anything returned or not. (im sure the query is working)I am happy to try different ideas but this is furthest i got so far with this one spend like 3 days on this..
a company offered me to develop a project for our attendence system in which finger recognition system is used. now i have quitely no idea that what i do and what do i do with this finger recognition system project.
I'm writing an application which has user authentication system, basically, when the user open the software, he has to enter his/hers username and password which are retrieved form a access data base, and if the user is set as admin then it enable some features, I couldn't figure out how to read the column lets say, IsAdmin table, which will store an value of 1 or 0 for example. I need a concept of how build a login system with levels or whatever you guys call it...
I have a project that I am working on and I just recently transfered it from an XP machine to a Windows 7 machine. Both machines are running VB Studio and the only thing that changed was I moved it from the XP machine to the WIndows 7 environment. I have not changed any of the code, I just transfered it and ran it to make certain nothing happened.
I am attempting to use the System.Management.ManagementObjectSearcher class in VS 2005 (see below) but get a error message for both the ManagementObjectSearcher class and queryObj As ManagementObject - Type ManagementObjectfSearcher is not defined and Type ManagementObject is not defined. how do I use this class in Visual Studio 2005?
Dim searcher As New System.Management.ManagementObjectSearcher( _ "rootCIMV2", _ "SELECT * FROM Win32_ComputerSystemProduct")
I have an application where I check the existance of a file. If file exists and I try to delete I get an error. Is there a way to release the lock on the file?
Public Sub CheckReportExists() 'if report exists, do not allow to proceed If File.Exists("C:Program FilesAstec IndustriesWM2000DailySalesReports" + ReportName + ".pdf") Then
I'm using System.Net.Sockets namespace for connecting to an ftp server. If a user has to login to a firewall first though, I'm not too sure what to do. The following is what I have working for logging into an ftp server without a firewall. (The Else statement) Do you know what I might add to the if statement? In the method where this conditional is, I am passing a firewall username and password.
m_tcpClient = New TcpClient ' Try to connect to ftp site ' If using firewall, login to it first then issue another command to log in to actual
I have an application where I check whether a file exists and give user the option to delete the file. When trying to delete the file getting an error. Is there a way to release the lock on the file before delete?
Public Sub CheckReportExists() 'if report exists, do not allow to proceed If File.Exists("C:Program FilesAstec IndustriesWM2000DailySalesReports" + ReportName + ".pdf") Then
my advance project for the final semester of software engineering is an intruder detection system which is based on motion detection. I'm using a web camera in order to capture the images sequently and let them to process for further checking to see the difference.
first of all i want to know, is this possible in vb.net (image processing)? if it is possible, please give me some ideas about this to start.i have a brief imagination about the structure but i'm not sure about the success
I want to control all the processes of my system. for instance, whenever i start a new process, my application has to ask me whether to allow it or not. I should have control to either pause, resume or terminate the process. for eg,if i start IE, my application should ask whether to allow the process or terminate it. if i provide "allow", the process should run, either it should terminate. Can i use "process" control to do these stuffs? Or do i need any API?
I need a clue where to start: how to create an icon that will show up at bottom right of explorer bar.. maybe I don't what its called. I guess windows named that "system tray icon".
Weird problem that just started, I am using an OleDbCommnad to create a dataadapter then fill a table everything from a .csv file, works fine except no dates are coming over? I added a datagrid view to my project just to see and any column that should have a date value is empty. I confirmed that the column is of System.DateTime value so I am at a complete loss?
I am storing images in a database. When I call the function to get a picture it returns an array of system.byte[]. How do I convert this to an image?I've searched for information, and found this page among others. But the code given doesn't work for me.
'Byte[] to image imgMemoryStream = New IO.MemoryStream(imgByteArray) myImage = Drawing.Image.FromStream(imgMemoryStream)
how to convert system.string to char for label text?? Here it my
[Code].....
I need to get the strings from the site and input the fields strings in the label text, so I needs to convert char of system.string but i don't know how to fix it.
I have a laptop with vista and desktop with win xp. I am building the application on win vista but when i copy the same project and view it on win xp , then it only shows the fields that fits on the screen. the rest of the fields that needed to be scrolled on right , does not come at all. The project works fine on win vista. I even tried to tried publishing the project. it works fine on win vista but is missing some fields on win xp.
I use the System.Net.Mail namespace to send email messages in my application and I have a beta customer that reported that some characters were not coming through correctly on his CZECH box. I was not currently giving the option to the user to select an encoding, but I think that I actually should be.
I am developing an application using VB.NET ( VS 2005) for Transforming high volume of Data between 2 SQL servers. So I am using DTSObjectLibrary ( COM Objects). The Transforming of Data is fine.
I wanna use EVENT Handlers of the DTS Package. Some code available in msdn helped me. the Event is fired if I use MSGBOX() with in the Overridable Overloads Sub OnProgress . But if Wanna display the result in a Textbox or a Gridview It is not showing.
I have an application that currently stores PDF files (and others) inside the database as BLOBs. The trouble with this method is that I've now got SQL Server databases in excess of 200 GB! I've finally figured out a way to still enable full-text search without needing to store the PDF files as BLOBs (yay! Adobe's iFilter isn't great.), but I'm having trouble designing the method for a client to get access to the files stored on the server's file system.
I want to place the files in a restricted directory on the server, so I can't simply pass a UNC path to the client and let them open the file from there either in a browser or using Process.Start(filename). I understand how that would work, but if that directory has user access granted, all sorts of security holes open up, right?So, what I'm thinking about is a way to have a SQL Server account that has read/write access to/from the protected file system directory. That way (in my mind), the SQL Server can take a file as it's loaded in through the import client (as a series of byte chunks) and write the file to that area of the filesystem. Then, when a file is requested, the SQL Server can bulk load the file into a varbinary(max) field and do whatever I want with it.
1. How can SQL Server take a stream of bytes and write them to a specified location on its local file system? (This is assuming that I want the import utility to be able to be run on a client machine and not require it to be run on the server itself.)
2. Is there any way to stream a varbinary(max) file to a web page out of SQL? I'm using a lot of PDF files that will have Fast Web View enabled, so if I can stream the bytes to a web page, the user will be able to see the first few pages of the document while the rest is loading. I thought about having the SQL Server read (bulk load) the file from the protected area and write it to an unprotected area just long enough to point a web browser to that location, then wiping the file, but that brings me back to #1 above and would THEN require me to be able to issue a delete command from SQL.
I'm new to finger print system based attendance I've purchased digital persona device. With that I've got a sdk in which a sample application is attached.
I'm working with a vb.net 2005 project that i converted from vb 6.0 last year. It's working fine in windows xp, but on vista and windows 7 i get an error saying 'Insufficient security permissions to set the system time.' Can you think of any way to replicate this error on windows xp? I'm trying to get a windows 7 box setup at work but I was wondering if there was anything I could try with xp in the meantime.
An Error has occurred while establishing a connection to the server. When Connecting to a SQL Server2005, this failure may be caused by the fact that under the default settings SQL server doesn allow remote connection (provider: Named Pipe Provider, error: 40- Could not open a connection to SQL Server)I want to connect to the SQL Server 2005 Express Edition which is running on my system from a VB.NET application. I am using Visual Basic 2008 Express Edition. Here is the Coding,
Dim sqlConn As SqlClient.SqlConnection sqlConn = New SqlClient.SqlConnection("server=localhost" & "initial catalog=LIB") Try
I am creating class libraries in my project so that I can update code without having to update the whole app.I created a class library project and added some code to it. I also added a reference to System.Data.SqlClient and also imported it into the class file.I am getting an error and I have never seen it before. Been looking online and not able to find an answer yet.
I'm getting an "Unhandled exception of type'System.MissingMemberException' occurred in Microsoft.VisualBasic.dll" error in this line of
oAppt = oApp.CreateItem(Outlook.OlItemType.olAppointmentItem) The error message has additional info of: Public member 'CreateItem' on type 'MailItem' not found.
Code in trouble is:
Private Sub Startup()
Dim oApp As Outlook.Application = New Outlook.Application() Dim oNS As Outlook.NameSpace = oApp.GetNamespace("MAPI") SubTwo(oNS, oApp) End Sub
[CODE]...
The last line of pasted code is where the problem occurs. It was working previously but I'm trying to "modularize" my application by breaking the program into more manageable sub routines... this is a stripped down version of the code I have.
