I figure why this happens, and is because of Windows 7 and its permissions. Now I'm trying to fix this. but the code for this is a bit complicated for me. I found on this website an example on how to set the permissions on files. ([URL])
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O/S WIndows 7
SQL Server : SQL Express 2008 R2
VB 2010 Express
SQL Server is located on the workstation so the code and the DB are on the same PC
Created a DB connection using the wizard. Tried this with Windows authentication and SQL authentication using sa
Created a Dataset and dragged the grid onto the form1.vb.
In SQL Sertver Management Studio I can update update tables using the same credentials as in the VB connection string
WHen I try to update a record in the VB Dataset it returns the error cannot update database because it is read-only
I have checked the files and folder attributes in SQL Data folder. Nothing is set to read only
I have checked SQL Server Database > Properties > Option > State > Databse Read only = false
I don't what I'm doing wrong here but I cannot get VB to update data via the dataset.
Inotice in SQL Server that the DBname now includes the full path "C:PROGRAM FILESMICROSOFT SQL SERVERMSSQL10_50.SQLEXPRESSMSSQLDATAPAYABLES.MDF" and not just the DB name. Is this becuase VB Express requires you to point to the physical DB file?
ode if I/m wrong i cannot save my file im using sql server 2005
Imports System.Data.SqlClient
Public Class Form1
Private cs As New SqlConnection("Data Source=GSM-DB6CB13C69E;Initial
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so i just bought a years web hosting with godaddy, and apparently i have one ms SQL 2008 database, is this compatible with VB ? and if so how can i link them together? i need the user to be able to update the database but also read data from it.
View 15 RepliesI have a report made in Crystal Reports XI. The report is generated and exported to PDF in visual basic script using COM interface. Generally everything is running smoothly, but in one case generation breaks with error: Failed to retrieve data from the database. Details: [Database Vendor Code 9421]
Database used is MSSQL 2005 connected over ODBC to CR XI. When I am opening report with exactly the same parameters in Designer, everything works fine.It looks like it is data related, but it is hard to trace since the whole report is pretty sophisticated. Anyway I spent half a day on crawling over Dr. Google and it seems that he has no clue what might be an issue.
I have been working on an Order management System using VB.Net and Microsoft Access as the database, But i am having problems updating the database through my Visual basic Application (I can only view my Microsoft access database but i can not update it through my visual basic application).
View 3 RepliesI am working on code in Visual Basic 2010 that will read from an Access 2007 data table. If the row has one of the fields marked as processed then do nothing with it, but it not, then process the data in that record, and update the field as processed, and move on to the next one marked as needing processing, looping through all of them. Later I'll go back and repeat this again.
I am able to read from the database and get all the information from it just fine, but I can't then update the 'processed' field. I'd rather like to avoid having the database integrated with the project as other processes will need to access it when this process (program) is not working on it.
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1. First off, how do I make my path to my database relative? The path is currently absolute and is: Data Source=J:/College/AS_DSFinalDatabase1.accdb
2. Second of all, where do I save my database in the project? I want it to be included in like project folders...kind of like the App_Data folder in ASP.Net.
3. I'm recieving an error whenever I try to populate more than 1 DataGridView upon form load for some reason...I've tried 5 different ways of writing the code, and I get the same error...there's no error description, so does anyone know what the issue is? Here's the error:
I am fresher in vb.net but I have experience in vb 6.0. But I want to connect database in sql server through sql connection. In that case how to create connection with window or sqlserver authintication mode and how to add or update new record in data base in batch transaction. Please help me with sample code.
So that I can understand eassily.
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service. The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
View 1 RepliesThis program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
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I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
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When 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:
[URL]
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP.I created a database on my local PC HDD. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service.The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
View 10 Repliesi want to update my inventory table in database from another database name. Example: In VB, i had a form named Orderform. User need to select e product that they want and key in the quantity. all these information are able to store inside my database named ORDERTAB. but now the problem is i wanted to update another field in my database named INVENTORY by minus the quantity tat the user had key previously. i totally had no idea how it going to works.
View 3 Repliesim creating a windows form where it will read data in a file n extract the data into the database.. the data in the files are in this format :
20090301,C4933,ASB02
20090301,C4933,BL689
20090301,C4933,BL707
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I am developing an application that is using a Jet database (Access 2007). The database is local to the project (e.g., on the same drive and in the project directory). Any time I attempt to access the database (to create another DataSet, etc., via designer, etc.), I get the ubiquitous "Failed to open a connection to the database" with:
No error message available, result code: E_UNEXPECTED(0x8000FFFF).
Opening the Database Explorer and attempting to attach to the database results in the above as well. There are no apparent locks on the file, etc., and I'm the sole developer for this.
Error : "Detach database failed for Server 'MONO-PCSQLEXPRESS'."
Public Sub bk()
Try
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I have 1 exe and 1 dll. The dll (ClassLibrary1) file is located in the root of a website. In the dll I have a UserControl that populates with data its controls, from a database that is on a website too. The end user gets the exe file. This exe loads the dll and displays the UserControl1 on the form. This is how i load the control from inside the dll (located on the web site), on my form (exe file).
Private _dll As String = "http://www.site.com/ClassLibrary1.dll"
Private _class As String = "ClassLibrary1.UserControl1"
Private WithEvents cont As UserControl
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The error is "Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."Note that if i dont load the usercontrol from the web and instead have it locally, there is no problem. The data are fetched from the database (db is on the web) with no problem.The problem seems to be that the loaded assembly from the web (the usercontrol1 inside the dll) has no permission to access anything. I am not trying to access stuff from the user's pc (like file IO), but access a database located on a web server.
I got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Try
btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
update statement, i am trying to update a row within a access 2007 database here is my code.
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I am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
View 5 RepliesDim mysqlconn As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=.ccsinventory.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True")
Dim myinvdataadapt As New SqlDataAdapter("SELECT * FROM inventory", mysqlconn)
Dim myinvcmdbld As New SqlCommandBuilder(myinvdataadapt)
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Why does this not work and why am I getting this error?I am under a deadline of less than 20 hours to get it working.
I created a SQL DB named MainDB.mdf and a small VB 2010 application with some forms and datasets.Everything was working OK until i got a new computer and re-installed Visual Studio 2010 and SQL server 2010 on it. I copied my DB from the old to the new computer and also copied by VB 2010 project to it. I used Windows Authentication to connect to the DB in the old computer and also in the new one, i am using different Windows user account names though.
I was able to connect to the DB in the new computer in the Server Explorer section, i created a new connection string to the DB and i can seed there is data in the tables. When i run my VB 2010 application created in the old computer get error:
"Cannot open database "MainDB" requested by the login. The login failed. Login failed for user 'D630Admin'."
I need to get rid of that error and be able to add/mod/del data from my DB using my VB application as i used to.
What is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
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i'm using opendialog control to select the database file. this works for me.
Private Sub btnbrowse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnbrowse.Click
opendatabase.ShowDialog()
txtfilename.Text = opendatabase.FileName
End Sub
Then i need to connect with the actual code.i'm able to connect my database only by giving the direct path in the code.
dbProvider = "PROVIDER=Microsoft.Jet.OLEDB.4.0;"
dbSource = "Data Source = G:module1module1student.mdb"
but i need some other way to access database path from the textbox( i.e., in my code it is txtfilename.text).
dbProvider = "PROVIDER=Microsoft.Jet.OLEDB.4.0;"
dbSource = "Data Source = txtfilename.text"
i want save image in directory path and also save path in database...sqlserver 2005 and retrieve in in same folder and path?
View 1 RepliesI have an Access database ubicated in the path: C:Documents and Settings obertoMy DocumentsVisual Studio 2008ProjectsDictionaryDictionaryDictionary.mdb But when I execute the instrucction: stringConnection=System.IO.Path.Combine Application.StartupPath, "Dictionary.mdb") the path where catches the database is : C:Documents and Settings obertoMy DocumentsVisual Studio 2008ProjectsDictionaryDictionaryinDebugDictionary.mdb
That`s is the reason why I am astonished because the insertions and updates in the database are made in this last path. Why having the database path in other path which isnīt inDebug works with this last?
I have a project that is like a server and a terminal interface. the server is the one that can only make changes in the database and the terminal is more of storing what is in the database. here is the problem, i have stored a PDF file path in the database through the use of the server, but the problem is that i cant seem to display it on the terminal. i was thinking that the terminal was assuming that the file path was stored in its local hard drive. can u please help on how will i specify that the file path is on the local hard disk of the server and not on its local hard disk?
View 2 RepliesI have done a windows application VB.NET with access Database. while working on it, i had the database path
Private ConStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= C:\LBCvehicles.mdb;Persist Security Info=True"
But since i wanted to deploy this project and install it on another pc i dint want the DB file to stay on C so i added a new folder to my project "DB" and added to it the access file.
Private ConStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= .\DB\LBCvehicles.mdb;Persist Security Info=True" and i tried it before deployment everything worked fine.
I deployed the application and when running the setup file i got the following error :
"The folder path'.' contains an invalid character"
