Having Some Trouble Connecting To A Database....

Feb 13, 2007

I am doing one of the Microsoft virtual labs "Creating ASP.NET Web Applications with C# - Part 2" using Visual Web Developer Express. I am trying to fill a gridview with database information, but it gives me the 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)".
This is on the local machine that I am executing the code.
 public void BindGrid(string sortfield)
{
//Create DataAdapter to fetch data from Prodcuts table
SqlDataAdapter myCommand = new SqlDataAdapter("select * from Products", myConnection);
//Create dataset and fill it with Product data
DataSet ds = new DataSet();
myCommand.Fill(ds, "Products");
//Bind Product data to Datagrid
DataView Source = ds.Tables["Products"].DefaultView;
Source.Sort = sortfield;
dgProducts.DataSource = Source;
dgProducts.DataBind();

It stops on the line "myCommand.Fill(ds, "Products"); and points out the error mentioned earlier. I am not sure what to do...any help would be greatly appreciated, thanks in advance, and I apologize as well if I have not pointed out enough information.

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Having Trouble Connecting To Database

Aug 19, 2006

Hi I am new at this.   
I have a little program written in C# in asp.net.  The program basically accesses a database and stores new records.  The database is supposedly already attached to MSDE so I am able to see the tables of the database inside asp.net.   I can click on the individual slots of the table and modify the datas manually.  However, I want to connect to the database from my C# program and be able to input data into the database via the website that the C# program produces.  After I type in the data into the website and click the submit button on the website, I get an error page that says this:
Login failed for user 'sa'
the line of code thats causing this error is:
con = new SqlConnection("data source=(local)\NetSdk; initial catalog=Friends; user id=sa");
Why is it not able to connect to the database?

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I Am Having Trouble Connecting To The Database

Sep 7, 2007



Dear Sir -

I am new to thsi and I have installed the SQL server 2005 Dev (not express). I am useing Visual Web Express - When I create an application and attempt to launch it - the web config tell me that I am unable to connect to the Database - in the properties page (sidebar) the database status says closed - an I cannot seem to connect if though I go into the connections and test it says connected!

What is happening?

I need this to work? Can anyone assist?

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Trouble Connecting To SQL DB

Jun 9, 2004

Greetings,

I am having difficulty connecting to a SQL DB in my ASP page. Each time I run my application I receive the following error, "Login failed for user 'CX259ASPNET'". This is obviously something to do with permissions. I am all out of ideas but I will list the things I have already attempted to see if I either missed something or somebody can add to what I have already done.

1. In SQL Server I right-clicked the db -> properties -> security tab -> selected the option button to "SQL Server and Windows" instead of "Windows Only".
2. I installed SP3 and changed the sa password.
3. I created a new user under my db using the ASPNET account listed. I then changed the permissions to allow selecting, update, insert and delete access.
4. I also created a new user under my db using the IUSR account listed. I changed the permissions to the same settings as above.

I did a search on google which provided with all of the information above, but I am still stuck and hoping that this is a common problem and will be easy to fix.

Below is the code which I am attempting to use.


Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not Page.IsPostBack Then
Dim strConnString As String = _
"Data Source=(local);" & _
"Initial Catalog=Names;" & _
"Integrated Security=SSPI;"
Dim objConn As New SqlConnection(strConnString)
Dim strSQL As String = "SELECT * FROM [Names]"
Dim objCmd As New SqlCommand(strSQL, objConn)

objConn.Open()
MyDataGrid.DataSource = objCmd.ExecuteReader
MyDataGrid.DataBind()
objConn.Close()
End If
End Sub


Regards,
Corey

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Jul 17, 2006

ok, we have a development server in our office and it has SQL running on it. If i remote over to that machine i can open the database administrator and create tables and things just fine. I use the windows login.

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So is there a way i can change it so i can have remote access? i dont see how else they expect anyone to be able to do any development from a remote machine elsewise...

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May 4, 2006

Hi,

I'm trying to use the bcp utility to create a format file to import data from a flat file. However, bcp cannot connect to the local instance of SQLEXPRESS. I am able to connect using both Visual Studio 2005 and SSMSE. Here is what I get:

snip

C:>bcp SQLEXPRESS.SAMS1DB2.Organization_01A format nul -c -f Organization_01A.fmt -T

SQLState = 08001, NativeError = 10061

Error = [Microsoft][SQL Native Client]TCP Provider: No connection could be made because the target machine actively refused it.

SQLState = HYT00, NativeError = 0

Error = [Microsoft][SQL Native Client]Login timeout expired

SQLState = 08001, NativeError = 10061

Error = [Microsoft][SQL Native Client]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.

snip



SAMS1DB2 is the database name. Organization_01A is the table name.

I'm new to SQL Server but it appears to be set up to allow remote connections, using Windows Authentication, TCP/IP and Named Pipes are enabled. I have also tried to connect using sqlcmd -S and I get a similar msg.

Any help is appreciated...Thanks in advance.

Sturdy

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Dec 18, 2006

Hello, I'm using Visual Studio 2003 and I need to be able to connect to an SQL Server 2005 Express database on the same machine using ASP.NET pages, but I'm having difficulty getting the pages to make a connection. I'm new to ASP.NET and I'm probably making some totally elemental mistake. I'd appreciate any assistance anyone can offer. I have pasted in part of the codebehind file for a web form (asterisking out the database name) and the error report that appears in the browser when I call the page.using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Data.SqlClient;using System.Drawing;using System.Web;using System.Web.SessionState;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.HtmlControls;namespace WebApplication2{    /// <summary>    /// Summary description for WebForm1.    /// </summary>    public class WebForm1 : System.Web.UI.Page    {        private void Page_Load(object sender, System.EventArgs e)        {            // Put user code to initialize the page here            string strConnection="Integrated Security=SSPI;Persist Security Info=False;";            strConnection +="initial catalog = ******;server=WILL-000993DB49\SQLEXPRESS;";            SqlConnection objConnection = new SqlConnection(strConnection);            objConnection.Open();            objConnection.Close();        }        #region Web Form Designer generated code        override protected void OnInit(EventArgs e)        {            //            // CODEGEN: This call is required by the ASP.NET Web Form Designer.            //            InitializeComponent();            base.OnInit(e);        }                /// <summary>        /// Required method for Designer support - do not modify        /// the contents of this method with the code editor.        /// </summary>        private void InitializeComponent()        {                this.Load += new System.EventHandler(this.Page_Load);        }        #endregion    }} Server Error in '/WebApplication2' Application.

Cannot open database "******" requested by the login. The login failed.Login failed for user 'WILL-000993DB49ASPNET'.



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.SqlClient.SqlException: Cannot open database "******" requested by the login. The login failed.Login failed for user 'WILL-000993DB49ASPNET'.

Source Error:




Line 24: strConnection +="initial catalog = ******;server=WILL-000993DB49\SQLEXPRESS;";Line 25: SqlConnection objConnection = new SqlConnection(strConnection);Line 26: objConnection.Open();Line 27: objConnection.Close();Line 28:







Source File: c:inetpubwwwrootwebapplication2webform1.aspx.cs    Line: 26


Stack Trace:




[SqlException (0x80131904): Cannot open database "******" requested by the login. The login failed.Login failed for user 'WILL-000993DB49ASPNET'.] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +734963 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1838 System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +359 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105 System.Data.SqlClient.SqlConnection.Open() +111 WebApplication2.WebForm1.Page_Load(Object sender, EventArgs e) in c:inetpubwwwrootwebapplication2webform1.aspx.cs:26 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061









Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210   

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Feb 12, 2007



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Looking in eventvwr I noticed the following:

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May 28, 2007

This is my first post ever so forgive me if this is too basic a question.



I have an Access 2000 database that I'm trying to make into a SQL 2005 Express database. Both databases are on the same machine (I've given up with the networking of this) and, after straightening out several problems I've ran into one I can't seem to fix.



Using the Upsizing Wizard in Access 2000 I try to connect to SQL 2005 Express but I keep getting this error: http://www.paulmauer.com/SQL%20connection%20error.doc



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May 3, 2006

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........................

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Connecting To A Database Twice Fails Because Database Is Uses By An Other Process

Apr 23, 2008

 Hi all,I come up with a problem aleady discussed in some posts especially in the post http://forums.asp.net/t/1235761.aspx. but I got in not finally solved.The main problem is connecting to a database twice which causes errors. So I think this might be the right place to ask my questions.  Here ist the problem in short:I'm using VWD on XP-Professional with SQL-Server Express and Reporting Services Express. All with Windwos Integrated Security and User Instance (SQLExpress). In my web-application I had for all Datasources the connect string:Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|mydatabase.mdf;Integrated Security=True;User Instance=True This works fine so far. I also have Reports designed with the Report designer using the same connection string. I can preview the reports and I deployd thre reports successfully. I want to call these report using a report viewer web control.Now the problem:when I call the remote remote report from my web-application, the database cannot be opened because an other process is using the database (see post mentioned above). It seems that this is a problem with attaching the database twice: from the sql-server and from the report-server.So I used now a new connection string without "attaching" the database (in vwd and in report designer):Data Source=.SQLExpress;Initial Catalog=C:inetpubwwwrootmyappAPP_DATAmydatabase;Integrated Security=True Now everything works...but ... only on my machine. On the production machine this does not work. I wonder anyway, why its working on my machine, because I never "attach" the database (there is no connection string with  AttachDbFilename and I have not opend the developer and have not opened the sql management studio).On the production machine the concurrent (SQL-Server and Report-Server) connection to database does not work with either connection strings, no matter if i attach the database with sql server manager or not).This all drives me crazy for days now. All I want is to use SQL-server and Reporting- Services with its nice features and not repairing my tools. I thought I have a standard Installation, nothing special, but the standard obviously makes problems.Here finally my question:Does this environment ( web-application with remote reports) with Express edition cause normally no problems?Can I "attach" a database only once?  How should I connect with my web application that uses the sql-server connections and also  the report-server-connections (attaching twice does not work).What connection strings to use and when (AttachDbFilename or Initial Catalog).Are these problems specific to the Express Editions? I thank you in advance for any help  Dieter

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---------------------------------------------------------------------
Login failed for user ''. The user is not associated with a trusted SQL Server connection.
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.SqlClient.SqlException: Login failed for user ''. The user is not associated with a trusted SQL Server connection.
---------------------------------------------------------------------
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Get
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