Granting access to SQL Server database from ASP.Net application

Question

I've set up a login page for a .NET web application but when I try to log one of the users on my database in I get this error.

Cannot open database "SampleLaundrySystem" requested by the login. The login failed. Login failed for user

After doing some research I found I ran this query in an attempt to give myself access to the server

EXEC sp_grantlogin 'MyMachineName\ASPNET' /* Give the ASPNET account access to DB*/ 
EXEC sp_grantdbaccess 'MyMachineName\ASPNET' /* Give the ASPNET account full privileges to DB*/ 
EXEC sp_addrolemember 'db_owner', 'MyMachineName\ASPNET'

The above still didn't work and I'm getting an error saying the 'MyMachineName' was not found.

I need help on how to get this sorted or pointers to what I'm doing wrong. Please find below my connection string:

<add name="SampleName" 
     connectionString="Server=localhost\SqlExpress;Database=SampleLaundrySystem;Integrated Security=True"
     providerName="System.Data.SqlClient" />

Thanks in advance for everything.

Answer 1

change integrated security =SSPI

follow this link: http://www.connectionstrings.com/