Can't Connect To Database Using Visual Studio

Mar 26, 2008

I can't connect to a SQL Server 2000 database using Visual Studio 2008. When I try to create a SqlDataSource in Visual Studio the db server isn't in the dialog box. When I manually create a connection string it doesn't connect. 

When I go to the server, the db is running and apps that use it work fine. I can ping the server, and I can map a drive to it, but I just can't connect to the database. I tried using servername,port - didn't work.

I open SQL Server 2005 Management Studio and try to connect. In the Connect to Server dialog box, when I go to the Server Name dropdown and browse for my database server on the network, the server is not in the list. I tried entering the server name (and password, etc) but it doesn't connect. A different SQL Server 2000 database server does show up there.

 

 

 

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How To Connect From Visual Studio To A Ms Sql 2005 Database On A Server

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Hello,

I have visual studio 2005 installed on my PC. I want to create a new website and I want the site to be connected to a MS SQL 2005 database that resides on my hosting account. I am thinking this can be done but I have watched videos, spent time looking for a site to help and I have hit a brick wall.

I have no idea how to do this.

Can anyone please help me with some instructions or a webpage that shows you how to do this.

Thank You

Joe

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I'm right-clicking on Data Connections in Server Explorer, and selecting Create New SQL Server Database. I've turned on the SQL Browser, so I'm able to select the instance from the combo box. I select Use Windows Authentication, type the database name to create, and click OK.

I'm getting this error:


"An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"

I've followed the instructions here, but with no luck:


http://blogs.msdn.com/sqlexpress/archive/2005/05/05/415084.aspx

Is there something else I need to do?

Thanks,
Jeff

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If possible, how can I connect to the SQL Server 7 as I have a small project to complee and all the data and tables exist on our SQL Server 7 installation.
 
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I'm attempting to connect to a database file through visual studio 2013 Ultimate.  The .mdf file is located on my local drive inside the App_Data folder of the project.  However when I try to connect to the file it fails and throws an error message (see below).  

“The attempt to attach to the database failed with the following information: 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: SQL Network Interfaces, error: 50 - Local Database Runtime error occurred. The specified LocalDB instance does not exist.”

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Jul 21, 2006

hello all,

i have SQL Server 2005 installed on a network computer and want to access it through code in asp.net. I am using visual studio 2003.

I have porvided this connection string to connect to that Sql Server 2005 Express instance but failed:

data source=mynetworkstystemSQLEXPRESS;database=MobMatiLogs;User Id=sa;password=mobmasti786

But I get the error:

SQL Server does not exist or access denied.

Anyone please help me!

Thanks in advance

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I can't connect to LocalDB using Visual Studio for Web Express 2012 or SMSS 2012 in a Windows 8 environment. LocalDB is installed and some things do work, however. The basic error is the very common:

Cannot connect to (LocalDB)v11.0.

ADDITIONAL INFORMATION:

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: SQL Network Interfaces, error: 50 - Local Database Runtime error occurred. Error occurred during LocalDB instance startup: SQL Server process failed to start.

In a command window, I can query the state of LocalDB an "info" parameter:

C:Program FilesMicrosoft SQL Server110ToolsBinn>sqlLocalDB info
SportsStore
TestOfLoc
v11.0

The first two are tests created at the command line using sqlLocalDB.I have reinstalled and repaired LocalDB several times with no errors reported.

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I need help setting up my laptop so that I can develop using Visual Studio 2003 and SQL Server 2000. I currently have both installed on my laptop but can not get them to play nicely together. Here is my connection code:

//string strConnection = "Provider=Microsoft.Jet.OleDb.4.0;";
//strConnection += @"Data Source=C:BegASPNET11ch12Northwind.mdb";
//Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;User ID=guest;Initial Catalog=Volkswagen;Data Source=DEREKLAPTOP;Use Procedure for Prepare=1;Auto Translate=True;Packet Size=4096;Workstation ID=DEREKLAPTOP;Use Encryption for Data=False;Tag with column collation when possible=False
string strConnection = "Provider=SQLOLEDB.1";
strConnection += @"Data Source=C:Program FilesMicrosoft SQL ServerMSSQLDataorthwnd.mdf";
////strConnection += @"Data Source=DEREKLAPTOP";
data_src.Text = strConnection;
string strSQL = "SELECT FirstName, LastName FROM Employees";
DataSet objDataSet = new DataSet();
OleDbConnection objConnection = new OleDbConnection(strConnection);
OleDbDataAdapter objAdapter = new OleDbDataAdapter(strSQL, objConnection);
objAdapter.Fill(objDataSet, "Employees");
DataView objDataView = new DataView(objDataSet.Tables["Employees"]);
dgNameList.DataSource=objDataView;
dgNameList.DataBind();


Here is the error message I get in IE:

No error information available: REGDB_E_CLASSNOTREG(0x80040154).
Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code.

Exception Details:
System.Data.OleDb.OleDbException: No error information available:
REGDB_E_CLASSNOTREG(0x80040154).

Source Error:





Line 18: OleDbDataAdapter objAdapter = new OleDbDataAdapter(strSQL, objConnection);
Line 19:
Line 20: objAdapter.Fill(objDataSet, "Employees");
Line 21: DataView objDataView = new DataView(objDataSet.Tables["Employees"]);
Line 22: dgNameList.DataSource=objDataView;
Source
File: C:BegASPNET11ch12datagrid.aspx Line: 20

Stack
Trace:





[OleDbException (0x80040154): No error information available: REGDB_E_CLASSNOTREG(0x80040154).]

[InvalidOperationException: The 'SQLOLEDB.1Data Source=C:Program FilesMicrosoft SQL ServerMSSQLDataorthwnd.mdf' provider is not registered on the local machine.]
System.Data.OleDb.OleDbConnection.CreateProviderError(Int32 hr) +81
System.Data.OleDb.OleDbConnection.CreateProvider(OleDbConnectionString constr) +107
System.Data.OleDb.OleDbConnection.Open() +203
System.Data.Common.DbDataAdapter.QuietOpen(IDbConnection connection, ConnectionState& originalState) +44
System.Data.Common.DbDataAdapter.FillFromCommand(Object data, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +304
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +77
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +36
ASP.datagrid_aspx.Page_Load() in C:BegASPNET11ch12datagrid.aspx:20
System.Web.Util.ArglessEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +10
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +750



Version Information: Microsoft .NET Framework Version:1.1.4322.2032;
ASP.NET Version:1.1.4322.2032


I know that my problem is in the @DataSource part of the connection string. It works if I use the first two lines (the database file is in the same folder as the code). But not when I use it as above. I think I'm pointing to the wrong place, but I can't figure out the right place to point to. I have SQLServer running on my laptop (I think), so can anyone help me out or maybe give me some example connection strings that you have used? Thanks.

Derek

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hi ,



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I am using "windows authentication" login.



My SQLExpress and SQLExpress browser are running from "SQL server configuration manager".



If i use a "App.Config" file to connect to database, the SQl connection can open and i can run the stored procedure.... but cannot access the database on my local machine.



Please help.



thanks for reply.

With regards,

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Hello,
I'm using Microsoft Visual Studio to remotely connect to my database for the project I am working on.
I always get the same error, when I try to connect:




Code Snippet

An error has occurred while establishing a connection to the server.
When connecting to the SQL Server 2005, this failure may be caused by the
fact that under the default settings SQL Server does not allow remote
connections. (provider: Named Pipes Provider, error: 40 - Could not
open a connection to the SQL Server)
So, I decided to ping the server to see if any packets were being sent back to me, on the command prompt.
4 of my packets were sent to the server.
0 were sent back.




Code Snippet

Pinging sq15.bravehost.com [172.16.0.229] with 32 bytes of data

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 172.16.0.229:
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