What is the best way to easily switch from a test database to a production database in vb.net and MySql, when all MySql connection strings are currently hard coded?
View 3 RepliesI have an application that contains both test code and production code. The test code points to the test files on the local machine while production is located on the server. I comment out the production code when testing. To save some time I figured I would create a Global Variable integer called pTest and encase the test and production code in a Case statement so that if I set pTest=1 then the test code will run and if pTest=0 then production code will run.
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I'm writing a flash cards program to help myself and others study. When the user presses the "New Card" button, I've been able to make it create the new card and jump to edit it, but the dataset/binding source/table adapter is not switching with it, so when you deselect the text box, it switches back to whatever was selected before the new card was made.[code]
View 1 RepliesMost of my project started out using Access databases, but now I want to swap them out for the SQL versions. One example would be this:
DEMOGRAPHICSTableAdapter.FillByCount(EyeBaseDataSet.DEMOGRAPHICS)
SPat = EyeBaseDataSetSQL.DEMOGRAPHICS.Patient_NumberColumn.Ordinal
'TODO: This line of code loads data into the 'EyeBaseDataSet.History' table. You can move,
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I have a connectionstring in MySettings which all my datasets use. The project has three copies of the same database: LIVE, WHATIF and TEST. I need to have a dialog in my startup that asks the user which db they want to use and then I thought I could amend MySettings.Connection string dynamically. Hey-ho it's read-only! Is there any other approach I can use where I change a connection string once and all my datasets will then point to the selected db?
View 3 RepliesI have created my site using ASP.NET Personal Starter Kits 3.5. I use Visual Studio 2008 only . .with its built-in SQL Server (2005 Express) ... my database in App_Data is ASPNETDB.MDF ...I have created some of my tables also ....in ASPNETDB ..In my local PC the site was running fine ...But when I publish my site on production server it doesn't work and shows the following error
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
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when using the ExecuteReader() command with an SQL database, with an example as follows:
DUReader01 = DUCommand01.ExecuteReader()
DUReader01.Read()
DUCounter01 = DUReader01.Item("Counter")
I am looking for a simple code example that will test to determine if the database first is empty before attempting the Item()
command.With the above example, the Item() line produces the error "Conversion from type 'DBNull' to type 'Integer' is not valid." for an empty database.
I have a simple .NET 3.5 app for changing some database fields using an ODBCDataSet. Now the Feature Creep is asking if I can hide or show tabs and other controls based on the user's database permissions. Ideally, I would like to control the permissions only on the SQL Server using Windows user groups, and the app would not have any built-in authentication or permission system--it simply uses the logged-in user's Windows account for the database connection. So thus it would have to "test" the permissions to determine whether or not to show the tabs for the user. For example, if they have "write" permissions to a certain table, then the tab for editing it would be visible; if not, the tab never loads for them. How can I list or test the user's permissions to the ODBCDataSet?
View 2 RepliesI am new to Visual basic and am using visual basic 2008 to write programs in, I have setup a database connection and the connection string is currently stored in the settings section of the project.I would like to have a menu item where when the user selects "test database connection" it will run the sub for testing if the database is established.
View 2 RepliesI have a text box which I'm saving to a database. Before doing a addnew which add a line to the database with a Id number and a blank item, I wish to test the textbox for actualentry before. Here's code I'm tryin
If
Me.TextBox1.TextLength > 0
Then
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I am having a problem with a unit test I have created. First time doing this so I am not sure why I am getting this error [code]Test method ETDS_Unit_Tests.LoginTest.ValidateUserNameTest threw exception: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server).This is the same connection that my software is using, and the software runs fine, only the unit test is failing. What I am doing wrong? It Seems to fail one time for each datarow in the table.Also, I am using a Linq Query in the method that I being tested. I believe that this may be what is causing my error.
View 2 RepliesI use Visual studio 2008 I use MYSQL 5.1 I want only to backup database Test to to a specific directory.I use the application settings to determine which directory(see attachment).Green shaded code works perfect.
Red shaded code works not!! This is with My.settings.I can not see the error code, it goes too fast, I can not capture this with:
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I have been left to maintain some vb.net applications - all of which utilize SQL server 2000 as the backend db. I need to change a report in one of the apps to include some newly added fields fromt eh database. I added the new fields to the specific table in the "testing" SQL server database which is on a completely different server. I am creating a new data source and have selected the database icon and then selected a connection string that clearly points to the test database on the test machine. I then selected the table containing the two new fields but for some strange reason, the two new fields I added are still not showing up in the list there! I have checked and double checked and it's as if it's still pointing to the live database on the live server where these fields do not even exist yet.
View 3 RepliesI am accessing an sqlite database file from my VB.NET application.Currently, I use Try... Catch when opening the connection to the database, however if the database is locked by another application, it will take 5-10 seconds to throw the exception which says that the database is locked.
So I want to know if there is a way to test if the database is locked before I try to open the connection... because the long 5-10 second pause is annoying.
i store th date in access data base?i would like to do some calculation in two mothodes
1- i will create ListBox to Access Database so i will modfiy this code
'Add ListBox to a Form in VB.NET
standard Edition
'connect ListBox to Access Database
'read a list of keywords from a Database table 'Keywords'
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The very first calculations for average gain and average loss are simple 14 period averages.First Average Gain = Sum of Gains over the past 14 periods / 14.
I just bought the MCTS Self-Paced Training Kit (Exam 70-561): Microsoft.NET Framework 3.5 - ADO.NET Application Development, and am trying to do the Lab Exercises now. Allready at the first exercise (point 8), where I am supposed to make an "UNIT TEST",[code]
View 5 RepliesI've set up a test database to begin unit-testing an app that I've recently been added to. It is a 3-tier design (presentation layer, BOL and DAL) and this is my first time writing unit tests. I've decided to start at the BOL and I figure the best way is to swap out the ConnectionString (which has been passed along as a Shared String) with one that points to my new test database. However, I don't wish to change any production code. I simply wish to somehow redirect the app to the test database during unit tests.
View 4 RepliesI use visual basic 8.0 en MySQL.I have a connection witho my MySQL database "test" with Myconn.I have two table's :
Rental
Articlenr Articledis Articlerent
100 beerclass 15
200 wineclass 10
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I have code on log in form but it only get the latest data on username and password column on my database
Here is my code
Public Class Users
Dim MyLogIn As New myRecords
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
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This is my connection:
Imports MySql.Data
Imports MySql.Data.MySqlClient
Module myconnect
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This is my record:
Imports System
Imports System.Data
Imports MySql.Data
Imports MySql.Data.MySqlClient
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I recently upgraded the MS SQL Server installed on my personal computer from 2005 Express to 2008 Express. Problem is when I try to add an SQL database file to a project using VS 2005 I get an error message saying that the version of my database server is not supported, I must have SQL Server 2005 Beta 2 or later installed. I didn't do it yet but I'm pretty sure that when I open the other projects that I included a database file to it, I'm going to get the same error.
My question is it possible to have two SQL Servers installed on my machine? If so, is it a good idea to have two DB servers in the same machine?
I want to move my programs and the database to another computer and hard-disks. It looks to me as though I nearly have to re-create the controls and rewrite some of the code to make it so the programs still work after the move. At least with ODBC all I would change was the DSN definitions external to the programs. Is there an easy way to move or rename a database without loads of work?
View 3 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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When I am developing an application and I use the 'Data Source' tab to create a database, will that database be automatically created when I use the software on another machine?
View 1 RepliesI'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...
In 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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Friends I have Developed my Data base Project on vb6, using adodc and datagrid using ms access database file, it was working nice in vb6, I also put Search box there and used adodc1.recordsource="select * from table" sql query.
later i needed to convert it in vb.net I converted it, every thing is working fine, but one problem appears, an adodc's Recordsource query for searching records is not working, it only works if there is data in dataset (Datagrid),suppose once i pressed search button to search record and if no record found then dataset / datagrid becomes empty, now i wanted to search an other record with other name, but this time it does not work and following error appears Either BOF or EOF is True, or the current record has been deleted. Requested operation requires a current record.
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I am sitting with a situation that I have to combined (3 years) for 26 site of 29000 database files where there is 1 table in each data base called RECDATA, I need to combined all that data Into one database file called RECDATA.
For example there is a database called DB1 with a REDATA table inside it, and then DB2 with a RECDATA table inside it, DB3 with a RECDATA table inside it est. So I need to put all the Recdata into 1 Database file, or to copy all the RECDATA from all the database files to 1 RECDATA they all have the same columns All I need is to get all that data into 1 RECDATA table.
The program where this database comes from is a voicerecording system creating a new database every day. There is 1 database just for indexing (to view the recordings) and then the daily database is where the recording lies in, that Colum is called RECFILE. I will give you a example of the 2 database.
I 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 VS 2005 installed in my sytem fyi.We have two databases, say source database and destination database. The databases is in Oracle. Now we need to pull data from Source database, manipulate it and push it into the destination database on daily basis.We are planning to use VB .Net for this and would like to know if this is feasible. Using windows forms through VB .NET, is it possible to create a exe and schedule the exe on nightly basis to pull the data from source to destination.how to do this as for manipulation of data, there is no intermediate database for us?
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