I have made a database application that uploads a database via FTP here is the code:
Code:
note this line:
Code:
ContactDB.mdf is the database in my application what would i have to insert for it to upload the database i have tried it as it is and its failing i could locate its full path on my machine that works but what happens when i want the application to go on someone elses pc?
I created an app and what it does is takes a screenshot of your desktop, saves it, then uploads it to ftp. After that it closes. What i need it to do is continuously do that via what ever the interval is set to. So if the timer1 interval is at 12000 then i need to to take a screenshot and upload it every 12 seconds. Can someone tell me why is keeps closing after it uploads the 1st screenshot? [code]...
View 3 RepliesIn vb.net I am using password protected database with following connection stringconnetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:vaivaiDB.mdb;JetOLEDB:Database Password=secret;"Database access works fine on the development machine.
View 2 RepliesWhen I install my application, some forms are unable to connect to the database.
I say some because, when my login form works totally fine. Authentication happens.
But once I go into the main application, and open other windows, I start to get these error mesages:
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i need to make a database application that can write/retrieve cells/datasets from/to a database i buyed a book in there was an example of how to create a database application while debugging i had the "Object reference not set to an instance of an object." error and it highlighted this code
objDataRow = objDataSet.Tables("KlantenTable").NewRow
now the problem is here i declare something later in the code i write to it
objDataSet.Tables("KlantenDataTable").Rows.Add(objDataRow)
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I've developed a database application in VB.Net Express 2010 and am having difficulty deploying it. The only deployment method available to me using the Express version is OneClick deployment. I can't figure out how to include the Access database file in the package.
View 2 RepliesI want to make a login for my application, not using a database, for now.
I figured something like this:
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
If UsernameTextBox.Text = "Josh" & PasswordTextBox.Text = "mypass1" Then
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I have a vb.net 2005 application that connects to an access database. I use Access Database Engine 2007 to connect to to this database.
Everything worked fine until i install MS Office 2010. After this, the application started to crash, returning the error 'application has stopped working'.
I've a Windows Seven Enterprise SP1 32bits.
When i debug the application, visual studio also crashes. I get the following error, closing an OleDbConnection: 'vshost.exe stopped working'.
I decided to run some tests. I installed my application on 2 virtual machines: a windows xp sp3 and a windows 7. When i installed ACE 2007 everything worked fine, but when i installed ACE 2010, thats when the problems began. This behavior ocurred on both machines.
I am trying to compile my program, and each time i do the access database is outside the executable. I was wondering if it is possible to compile it and the database will be within the executable, or better still how do i make it an installer kind of application that sends all the files to the programes folder on the computer.
View 3 RepliesI am having two databases for the same application , one in windows and the other is web based.Since web based one have few functionalities I can't opt for a single database.At the same time I want to share Both databases to be updated with other's data so as to work error free with my module of appointment fixing.
View 2 RepliesI have an issue with my code. The application interacts with a MySQL database on a remote server, I have access to this server. When my app is running the insert into code I m getting this error: "Conversion from string "INSERT INTO phpvms_fsspireps(pil" to type 'Integer' is not valid."
The variable which holds the Inser Into string, during break point debug gives me this: ""INSERT INTO phpvms_fsspireps(pilotid, code, flightnum, depicao, arricao, route, route_details, distance, aircraft, flighttime, flighttime_stamp, landingrate, submitdate, accepted, log, load, fuelused, expenselist, source,
[code]...
And this is my code.
Dim conn As MySqlConnection
Dim cnString As String
cnString = My.Settings.constr
[code]...
the DB spec:
Total DB size: 190,1 MB
Total Tables: 106
and the table specs. The titles are in Greek but I think you can understand it from the data. [url]
I have recently developed a back end database in SQL server 2008 R2 and attached it to a application in VB express 2010.Everything works fine and when i publish the application, it works fine on my machine, but once i try to setup up the application on another machine i get the error message: A network related or instance specific error occurred while establishing a connection to SQL Server. Server was not found or not accessible please verify the instance name is correct or allow remote connections.I have read numerous forums on this saying about changing the connection string and instance name.but with being novice i dont understand what needs to be changed etc.The sql server allows remote connections, but i am unsure what else needs changing to allow the application to work with the database on another machine.
View 5 RepliesI am writing a program for a class and it needs to read/write to an Access 2007 database. Right now I am referring to it's absolute path when I use it in connection strings, something like:
Dim conn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:UsersMeDocumentsVisual StudioProjectsProject1Database.accdb")
This is going to be a problem when I turn it in obviously, because the professor isn't going to have the same path. So I want to somehow include it into my project and then refer to it with a relative path or something so that it will work on his machine. When I imported it through the Data Sources it had an option at the end to copy the database into the project which I agreed to. It put the Database where all of the source files are on my computer, so I tried using Application.StartupPath(
I am developing an app that uses a sql backend database (hosted on a different machine).The app I am developing will be run on 10 different workstations simultaneously.Sometimes the app will change the database in such a way that the database needs to initiate a workflow process and I'm not sure of the best way to do this.Also, when database changes happen, how does one best notify the other app instances that the change has happened, so they know to refresh their data? I was thinking that triggers could help initiate the workflow but it might be nice to develop the actual workflow in .net code.Should I write another App to run as a service on the server and do the work and also to tell the client apps when things change?
View 1 RepliesI am developing a chat application using online connection to a mysql databbase. But i am facing a problem. After 10 minutes, MySQL closes all the chat connections because of the 600 seconds timeout (has been set by the host service i am using). I don't understand why is that happening cause every piece of my code which needs data from the database opens and closes the connection (i mean that it dosn't maintain the connection after the query's execution). If i .close() and .dispose() the connection, it still appears in mysql at sleep mode (it terminates only if i exit the program).
Dim MySQLCon as New MySQLConnection
Dim MySQLCom as New MySQLCom
Dim counter as Short
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I'm trying to use LINQ to SQL in Visual Basic 2010 Express.
It allows me to create the .dbml file, but in order to drag items from the Database Explorer window to the design surface, I first have to get my database listed in the Database Explorer!(this is a remote SQL Server database - not a local .mdf)
I already have a good, working connection string to the remote SQL Server database, but that doesn't help me when I'm trying to generate the DBML at design time.
Can anyone tell me how to get my remote SQL Server database identified in the Database Explorere window? When I try the "Add Connection", I am limited to Access, SQL Server Compact, or SQL Server Database File. If I try to enter the IP address & port of my DB Host I get a 'database file does not exist' message. Doesn't seem to want to let me point to a remote DB server...
With VB.net, I'm coding a simple application to get more used to the new .Net format.
I'd like to save all the information to a 'new' database file. how to create a database on the fly, once that is done i'll be able to connect to it no problem, but actually creating the file is proving difficult to work/find out.
Also, with vb.net and the newly created custom file, how can it be made to automatically open that information with the program?
Is there a method in installation to associate the file type with the new program? How can i check when the program loads if a database file has been 'double-clicked' (rather than just running from the .exe of the program) and proceed to load the data?
EDIT1 - Extra InfoThe windows application has many different fields and content etc, then i need to save that to a file that could later be loaded by 'double clicking'. I assumed the easiest way would be to create a mini-database for each unique file
I'm writing an application where when you click the "load database" button, it opens up a dialogbox where you have to go and open the database.txt which has a bunch of questions/answers.I want to make it so that after the user does that, the button disappears. But I can't get it to work at all. Here's what I have:
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Also, if I hit "cancel" then the whole program freaks out. What am I doing wrong?
What I want to happen is that the button from my system will remove the previous data from database and then insert new data to database from text file. Im done with inserting new data. The thing is that I dont how to control or where to put the Delete Command from my code.
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How connect Vb.Net to MYSQL..? How to add info to database user informations using mysql database. How to call login infos using mysql.
View 8 RepliesI am trying to import data from an access database to a access database that my project uses I am having problems with combo box fields in the database with the data. I want to import what is displayed instead of the numerical key value. Example: The combo box displays employee names but the value stored is the key value from the employee table so instead of importing John Doe it imports 2 is there a way to make the actual name instead of the number?
View 4 RepliesI need to code a program that makes use of a database. It's gotta be for a local business, so I chose a pub lol. The database has the following columns: Beverage; Cost; Total number of sales; Income.
What the application needs to do is basically work as a cash register. Each beverage gets its own button, each click on the particular button displays the total due that the customer has to pay.
That, and the same button has to edit the database fields and update them or add to the values.
I'm trying to resize an image as it uploads, and even though the file is successfully being uploaded, the image is not being resized..
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it's just for a program registration. i would store all of the registration codes in the access database, then export it to XML, then upload it to my web host. I would then somehow connect it to my Visual Basics login form (Which I have already made). If this can't be done, having them register through the form and having all the allowed codes on the internet (So i can easily edit them)!
View 5 Repliesi m trying to write codes for new user to fill in the form, then the new data will into my database,however, my codes doesnt work, i cant figure out what's wrong with my codes. below are my codes:
Imports System.Data.OleDb
Public Class NewUser
Inherits System.Web.UI.Page
[Code].....
there is no error encounter, however,the adding is failed and no new data can be add in.
so this is more of a question about application security.Say I have a application that authenticates to a database. The Users table has the following fields: UserID, UserName, Password,Salt, Active, Permissions.
The permissions field will be related to another table called "Permissions" that has a unique ID and it describs the level of access the user has to the system (reporting, add/remove users, etc).Now the question is, when the user autheticates and executes an action on the application that requires a certain level of permissions, is it better to have a class the holds an authenticated user or is it better to have the application query the database for the users permission level?
i have published my website...its a dynamic site..so i have database connectivity..now i want to make an application in VB to update my database using my application..i mean i do not want to login to the site and update my database rather update it using my application..i want to connect my application to the database of the published site and update it from anywhere i want using the application...is it possible??
How can i do it??Please point me to the right direction...its urgent.
My application has an access2007 db as its database. I am trying to create a backup/restore utility in my application that allows the user to take the backup or restore the database file "StudentsData.accdb" which is in the application folder. I tried the filecopy method but it gives me an error saying that the "file is not accessible, as it is being used by a process." I believe it is my application process that is using the file.
How do I stop my application accessing the database? I have database connections which i have written in code and all of them close with their respective forms.
I am looking to make a small application which uses 3 stages of combo boxes to filter results into subcatagories. Once the filtering is selected - I want the user to be presented with some advice, maybe even a small picture.I want the application to gather its information run from a database which will be network based via a mapped network drive on our network. There may only be 4 colums in that database. I want to be able to update the database as required.
View 3 RepliesI am not sure what I am doing wrong I can connect to my database on my personal computer yet I am unable to have someone else use it without getting an error. system.IO.FileNotFoundException: Could not load file or assembly 'MySql.Data, This works on my PC so I am not sure what I am not including in the project when I compile or what?
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