.net - VB 2010 Express Form To Database?
Mar 14, 2011
I made an input form that I want to work like a daily diary. The user inputs a title, date, time, and the actual text entry. At the end is a button and I think I have to make a click "event" to make all the text from the input boxes get stored somewhere. I want each of these submissions to be separate for each day with the capability of showing the journal entry for each day later on.
I am a novice, but I think the data needs to go to a database. Cannot find any sample code to make the form data save to a database. The database I made is "a local database." Not sure if it needs to be "Dataset" or "Entity Data Model".
Please show me some code for this or a way to save information without a database only using vb code.
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Jan 2, 2012
The project must have different user and each has username and password will be saved in my database but only the admin can add users.
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Feb 29, 2012
I am trying to make a user account SQL database work with Visual Basic 2008 Express for login purposes, i.e. usernames & passwords. Plan is to host this server so people can login to use the the application and verify they have a valid account. I would like to host all the account information in SQL due to the possiblity of hundreds of users at any given time. I also need the ability to add data to the database for users registering for the first time. The SQL server will need to be able to access the SQL Server databases remote via WAN.
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Feb 29, 2012
Here is the scoop: I am trying to make a user account SQL database work with Visual Basic 2008 Express for login purposes, i.e. usernames & passwords. Plan is to host this server so people can login to use the the application and verify they have a valid account. I would like to host all the account information in SQL due to the possiblity of hundreds of users at any given time. I also need the ability to add data to the database for users registering for the first time. The SQL server will need to be able to access the SQL Server databases remote via WAN.
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Feb 14, 2011
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...
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Sep 21, 2011
i created a database in SQL Server Management Studio by use engine sql express how to add my database in my project in vb.net 2010
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Jun 21, 2010
I have found a tutorial that will teach me how to set up my first Database, but the first thing it tells me to do is right-click on the Data Connections Icon within Database Explorer and choose "Create New SQL Server Database" ... unfortunately, this option is greyed out, so I am assuming I have to choose "Add Connection" first ...[code]...
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May 22, 2012
I posted this as a bug on MS Connect and am wondering if anybody else can verify the problem: I been beating my head against the wall for about 3 days and I don't think it is my problem.
Desktop computer - Vista 64 bit
Portable Computer - Vista 32 bit
vb.net 2010 express on both of them
I can not establish a connection to an Access db (either .mdb OR .accdb) on the 64 bit computer. When I try I keep getting a message that says "Format at the initialization string does not conform to specification starting at index 0." (this was typed not copied). (There are screen shots over on Connect).
I can establish a connection to a "Microsoft SQL Server Compact Edition" (.sdf) database on the 64 bit computer.I can estabish a connection to all 3 types on the 32 bit computer (.sdf, .mdb, .accdb).The 'funny' thing is that if I establish the connection on the 32 bit and copy the program directory over to the 64 bit, the prorgam loads and seems to run fine. But the %$# _(%* Wizard will not run on the 64 bit machine. Runs fine on the 32 bit but not on the 64 bit. Of course I make sure that the db's are in the location where the program expects them to be when I run the program on the 64 bit machine.
One final thing, when I am in the progam created on the 32 bit and running on the 64 bit and I try Data->Add New Data Source->Database->Dataset only two of the three connections show up while all 3 show up on the 32 bit machine. Also the connection string is incorrect for the non-sdf connection. It should include
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Sep 16, 2011
I am trying to follow this userguide url... to basically build an application that will allow users to connect to my database, from an exe file. I'll try to explain as best i can. The plan is, users will launch an exe file that i have built in Visual Basic(VB) 2010 Express. When they launch the application they will see a 'login screen'.I am following the example guide (see link above), and will customise it once i can connect to the database. For some reason whenever i connect to the database it gives me two errors, the first is if i use the 'debug' mode in VB to test the script (note it doesn't produce any build errors), the second is if i build the application and run it as my users would.
1)Error Connecting to Database:Access denied for user 'mike'@'92.**.**.***' (using password:YES)
2)Error Connecting to Database:Unable to access any of the specified MySQL hosts..The ip address starred out (*) is my local machine ip address.The server is the server in which my Database runs on. 'mike' is a listed user on my 'user' table, the password i use is the password assigned to this user on my table.
3)I've rebuilt the whole VB project, but still no joy, wern't expecting it to as there were no errors generated.
4) I've read, but don't really understand that it could be something to do with my database not being able to be controlled remotely, only locally. I started digging into 'Access Your MySQL Server Remotely Over SSH', didn't really know if i was going completely off the mark, it didn't mention needing to do any of this in the guide i've been following, but just a thought. It might be the case as i've tried to access my database through a programme called MySQL Administrator. I punch in the host,username etc and connect to my database, for some reason it won't allow me to add new users, could this be because i can't control my database remotely? Would this stop what i'm trying to do working?
5) When trying to install the MySQL.Data.dll file i had great difficulty in choosing one and finding it, adding it to my project using the 'Add reference' in VB. Finnally got it how it should be (i think), installed MySQL.Data.dll Ver 6.1.2.0 into my project.
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Sep 17, 2011
I want to use a connetction string for connect a databse in sql server express by vb.net? My code is : Cn1.ConnectionString ="Data Source=.SQLEXPRESS;Integrated Security=True;Connect Timeout=30;User Instance=True" but i when open then connection i see this error Cannot open user default database. Login failed. Login failed for user 'Shahab-PCShahab'.
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Sep 28, 2011
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.
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May 16, 2011
I am brand new to VB. I am using VB 2010 Express. I have a MS Access database and can read & display the data. However, when I enter a line of code to manipulate the data I get a "read only" error message in the project editor. I have checked the file and directory structures from windows and the command prompt. I have even used the "attrib" command to make sure the file was not read only. Then I put the following code in the form and it dispaly the read only message.
Dim infoReader As System.IO.FileInfo
infoReader = My.Computer.FileSystem.GetFileInfo("C:zzz-devaccesswhitneywhitney.accdb")
If infoReader.IsReadOnly = True Then
MsgBox("File is readonly!")
End If
I am using the VB 2010 Express DataSource to connect to the MS Access database and not a connection string in the program.
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Apr 10, 2012
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.
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Jan 7, 2011
My question is how to link database from MySQL2005 with the interface created in Microsoft Visual Studio 2010 Express?Is it possible to link the database into my interface?
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May 24, 2011
Visual Basic 2010 Express, lets the user to add a Local Database with .sdf extension. These databases needs MICROSOFT SQL Server to be created or they can run in the user's pc without any additional software? What are the limit of these databases unlike an external database?
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Oct 23, 2010
This sounds like a dumb question, but I'm using VS 2010 Express edition and cannot find where to add a new Windows form. The templates provided don't indicate a Windows form . Are they called something different in this version of VS?
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Jan 3, 2011
I am relatively new to VB and want to do the best I can. I am current trying to develop an appointment form using windows form with VB 2010 express and what to know how to create a data file that can store and retrieve data entered into the appointment form. Or any other option in building this software. Since I am still new, please explain in detail.
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Jul 26, 2011
I am primarily a web developer, mostly working with PHP, MySQL, and JavaScript. I was recently contacted by a local Sheriff's Office (small town word of mouth, nerds are always needed) to digitize a 4 page monstrosity of a form... because nobody could read the handwriting of the deputies.The catch here is that this is a small town department and, while they are fancy enough to carry computers in the field, they are not connected to the Internet. Visual Basic was the first solution that came to mind and I have been scrambling to learn the basics. I am confident in my ability to organize the content of the form and perform any necessary validation but I am unsure where to begin in terms of storing each report locally (database) and printing the end result.
Another matter that makes things complicated is the fact that they want the end result to look exactly the same as the original form, only typed instead of hand written.So, to sum things up, here are the questions I have:there seem to be several options for databases in VB 2010 Express. What is the best option for LOCAL storage of records?It looks as though the best way to format the form the exact way they want it to look with populated data would be to create a form within the application with just this content on it. Is this the best solution or might there be a better way - possibly outputting to another file? And if the data is put on another form, how would I go about printing it?
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Sep 2, 2009
I use AES encryption in my vb.net 2008 windows forms apps to ....
1. Store user passwords in sql server express database in encrypted form
2. decrypt the encrypted Sql server express connection string password on the fly when connecting to SQl Server over a vpn or direct to web based sql server database
3. decrypt the encrypted ftp site password on the fly when my application connects to my ftp site to upload client's database backups
The issue I have is that the secret key for the encryption / decryption is hard coded within the encryption/decryption functions. So anybody who decompiled my application would be able to generate the same encryption, as they would have the encryption secret key How can you hide the encryption secret key so that if anybody decompiled my app they could not reproduce the decryption function
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Jun 21, 2011
I am not able to add records in an Access 2007 database using VB 2010 Express Edition. I have read other posts and followed them but still I am not sucessful. I have the connection to the access database as MS Access Database, therefore it has the OLEDB connection (not the Jet 4.0). I am using the project instance in binding the text boxes to the fieldnames in the Access database. Did I miss something? I am also using Windows Vista Ultimate.
Below is the code.
Private
Sub
cmd_Save_Click(ByVal
sender As
[code]....
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May 10, 2010
The above is more or less the complete question. I have created a table in the VB 2010 Database Explorer but I cannot for the life of me work out how I can get this copied or created into the underlying server. It is not appearing in the underyling serverand when I run the code of course I ge "invalid object <tablename>" I have data as well in the table that appears in Database Explorer. I think I have missed something fundamental in my overall conception of using VB 2010 Express with SQL Server Express in that I don't know if I have a local copy (that isn't then mirrored on the server), or what (the ____ have I got)? An article that explains the overall relation of Database Explorer to the underyling Server would be great as well
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Feb 10, 2011
I have a very large program I would like to write but think starting with a smaller test program would be a good idea. What I want to know is: I have a base Form from which a user clicks a button to answer a question (Answer A, B, C, or D) which if the answer is correct will pop up a "Correct! answer response in a separate window. This is ok for now, however, when the "proceed to next question" button is clicked, I would like the next question to appear in the original base form window.
Right now it pops up in a separate window and I'd rather not have 20 windows open at the end of the quiz. How do I load the next form in the same window!? Obviously it's possible and could be something I'm completely overlooking, and I've also read that I could replace all data with the next Form. I have searched "Visual Basic load form in same window" and came up with results, but none of what I'm looking for.
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Mar 10, 2011
When I click a Button I what to save all the textBox's text on my form. The code I have Is Below.
In My settings Have I got to List each textBox. Like TextBox1, TextBox2, TextBox3. ect..
IE: My.setting. textBox1 = TextBox1.text (In settings TextBox1: have it as string: User)
IE: My.setting. textBox2 = TextBox2.text (In settings TextBox2: have it as string: User)
Or can I have just one TextBox In my settings, that save's all the TextBox's 1 to 8 on my form
[Code].....
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Nov 1, 2011
Is it possible to connect to a database on SQL Server R2 Express from Visual Basic Express? I am following a set of tutorial videos done in SQL Server 2005, but cannot seem to connect to create the database. I have created the database in SQL Server R2 Express, but cannot connect. Is there a work around?
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May 13, 2005
It's probably just a case of me not looking in the right place or not seeing the obvious, but does anyone know if a machine with just version 2.0 of the .NET Framework should be able to run a VB.NET Express application which accesses a SQL Server Express database file? Or is there an additional requirement for a non-development machine to have some kind of SQL Server Express runtime component in addition to the 2.0 Framework?It seems to be counterintuitive to expect that a VB.NET application would be able to access any kind of SQL Server data without having some kind of SQL Server host component (Express or otherwise) installed. But then again, it seems just as counterintuitive that Microsoft would require the download and installation of the new framework as well as a separate database runtime in order for the average user to run an application with accesses a local SQL Server Express database.To me, it runs contrary to the whole concept of XCopy deployment to require more than just the application's files and .NET Framework for an application to run properly. But nothing I've read so far explicitly indicates that a user would require anything more than the app files and the framework to run an application which accesses SQL Server Express data. But...I can't get any VB Express applications which uses a SQL Server Express databases to run on any machine that doesn't have SQL Server Express installed.What am I missing?(Apologies if this isn't the right group to post this in.
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Feb 17, 2012
I have a bunch of Excel files full of research data. Everything is strait forward: rows of research categories and columns of research parameters. I want to create a simple search form that allows opening any of the spread sheets that contains the type of data that I specify. For example, I would choose a parameter
[Code]...
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Oct 16, 2010
I tried to start using VB 2010 Express with a program I originally developed with VB 2005 Express that I moved to VB 2008 Express successfully a couple years ago. It uses a database file (*.mdf) that is on the computer ( not out on a server). When attempt to run the program in debug mode, I get the following error "An attempt to attach an auto-named database for file C:Documents and SettingsTomMy DocumentsQuizzing StuffQuestion Database 2010QuizQuest ionGameQuizQuestionGameinReleaseQuizQuestionDB.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share."
I first made a copy of the entire project folder that was working in VB 2008 Express and gave it a different name. In VB2010 I opened the project in the copied folder and it said it successfully converted the project. I am able to open the Data Source inthe Designer and see the database structure as I expect. I think the project is still using SQL Server 2005 Express (because it is what is checked in the list of prerequisites on the Publish tab).
Note, I have programmed off and on for many years, but fairly new to using databases and SQL Server.
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Jan 21, 2011
I am trying to re write a VB6 program using MS Access, many years ago, using VB 2010 express and SQL server 2008 R2 Express. I have a database with several tables, which I created using the designer. I am able to connect to the database and select data and display it in textboxes etc in vb code. What I have not been able to in code is to INSERT rows DELETE rows or UPDATE any data in the tables. I can do any of these operations using the Query Designer, but I want to do it in code. I can post some code if necessiary, but I thought it might just be some property that I had not set in the designer.
[Code]...
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May 12, 2010
Is VB Express 2010 slower to compile and run that older versions of VB Express? I've installed it this weekend and it seems a little sluggish on my quad core computer with 1 gig of RAM. I have VB Express 2005 installed for my students at school and it seems to fly just fine. Those school computers are older P4s with 512k of RAM.
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Jun 3, 2011
Initially my app worked with excel fine, now it causes my computer to reboot only after Excel has been opened (two or more times). I have opened and closed Excel files 20+ times without running thru either of my apps (they all uses identical code for excel) and it has never caused a reboot or a crash.
run either of my apps and have the app control excel has become a crap shoot, it will reboot my computer. Adding to that I then have to do a manual shutdown because the reboot process after is unstable. (System doesn't respond properly). My code in this app is small, should make for a good example. I can provide the entire project to anyone who would volunteer to test it. (First I need to know how to send the project).
[Code]...
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