Showing posts with label vs2005. Show all posts
Showing posts with label vs2005. Show all posts

Tuesday, February 14, 2012

Can't use SQL Express in VS2005

When I try to add a new database to App_Data in a VS2005sp1 project I get "Failed to generate a user instance of SQL Server due to a failure in starting the process for the user interface".

I have SQL2005sp2 and SQL Express on the system, both services are running, and an instance of the latter called SQLExpress which I can use through SQL Server Management Studio. sp_configure user instances enabled is set to 1. The SQL Server Instance Name in Options | Database Tools | Data Connections is set to SQLExpress ...

I have no idea how to proceed .. any ideas anyone?

Thanks

John

Most causes of this error are solved by deleting the folder where we store the SQL Express User Instance system files, which is C:\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Microsoft SQL Server Data\SQLEXPRESS. You may need to reboot your computer after this, so just eliminate any concerns and reboot.

The once cause that this will not resolve is if you are working thorugh remote desktop. There is bug in windows that results in the remote login not have certain permissions. The problem is explained in http://support.microsoft.com/Default.aspx?id=896613 and you will need to call Microsoft Support to obtain the Hotfix for the problem.

Hopefully this helps.

Mike

|||

Thanks, Mike

That was it. Problem now solved.

John

|||I had the following trouble.
- Installed MSSQLEXPRESS
- Installed Visual Studio 2005
- Uninstalled MSSQLEXPRESS
- Installed MSSQLEXPRESS

->the bloody error started appearing.

The suggested method worked perfectly!!
I killed the folder, restarted Studio, now can connect to the databases.

Cheers,
Valekm

Sunday, February 12, 2012

Can't update table using mysql

Hello.
I use VS2005 and I was trying to make a little program able to connect to a MySQL 5.0.18 database through MyODBC 3.51.12. I can connect to the database and I can load a table in the Datagridview control, but I can't update the table: the wizard didn't generate the Update method. Even if I configure again the tableAdapter, the wizard generates only:
SELECT statement
table mappings
Fill method
Get method
The table is a very simple table: it has 3 columns and the first is a primary key.

If I create an identical table using Access database and make a program that connects through ODBC, I don't have the problem: the wizard generates also the UPDATE, INSERT and DELETE statements.

Where is the difference? What is the problem?

Thankyou so much for the help

Anthony R.

The MyODBC Driver could not generate the UPDATE command. But the MySQLDirect .NET Data Provider for example generates without problems.

Can anybody help?

|||

I am having a huckuva time trying to get this to work as well. If someone else has any ideas, I would love to hear it.

However, I am working on a project that may work. I do not know if I can get to it soon, so I thought I would post the idea to see if someone else tried it -- to see if I am barking up the wrong tree.

I am using VS2005, MySQL 5, and MyODBC 3.51

I am viewing a TableAdapter in the DataSet Designer. I right-click on the TableAdapter and select Properties. Within the properties are the InsertCommand, DeleteCommand, and UpdateCopmmand methods. They are blank, of course, because as we have noticed, they can't automatically generate.

However, by expanding one of the commands (UpdateCommand, for example) we have access to the CommandText, where we can define the MySQL Command needed to update the table. We also have access to the Parameters, where we define the parameters we will pass.

If I get the chance, I will attempt to try this. If anyone else beats me to it, please let me know if it works.

|||

Someone in the Visual Basic General forum may be able to provide some insights as to why these particular drivers are not generating UPDATE commands.

To follow up on mking's theory, there is some good basic info on the TableAdapter class at: http://msdn2.microsoft.com/en-us/library/bz9tthwx.aspx with lots of good links (including http://msdn2.microsoft.com/en-us/library/dex7k4dw.aspx, which walks through the TableAdapter Configuration Wizard). This information should hopefully provide you with enough information to follow up on MKing's idea and generate the appropriate UPDATE statements.

For additional help with the TableAdapter Configuration Wizard, I'd recommend the Visual Basic General forum at http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=32&SiteID=1. The ADO.NET forum might also be able to provide some assistance: http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=45&SiteID=1.

Good luck,

Jason

|||Jason,

Thanks for the tips. However, after some intense drinking, I figured it out. Then I wrote a tutorial about it, which everyone can find on VBMySQl.com.