I just added EntityFramework to my MVC5 project. I`ve created classes and set up the connections string:
<connectionStrings>
<add name="UserDBContext"
connectionString="server=.; database = DDP; integrated security = true;"
providerName="System.Data.SqlClient"/>
</connectionStrings>
After debug Visual Studio is not responding and I have to remove it by Task Manager. I canot even debug to see what`s happen. What could do that ?
UPDATE
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework"></defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
<connectionStrings>
<add name="UserDBContext" connectionString="Data Source=.; Integrated Security=True; Initial Catalog = DDP;"
providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
You used wrong connection string in your web.confing in you case it looks like code for SqlConnection.ConnectionString when it is used from C# directly.
But in ASP.NET MVC with EF connection string in web.confing looks different, where you use Data Source instead of server and Initial Catalog instead of database, so in the end you connection string will look something like that:
<add name="UserDBContext" connectionString="Data Source=SERVERNAME\SQLEXPRESS;Initial Catalog=DDP;Integrated Security=True" providerName="System.Data.SqlClient" />
Update
Put your <add ../> on 1 line, move Initial Catalog before Integrated Security and then delete ; after Integrated Security=True like below:
<add name="UserDBContext" connectionString="Data Source=.;Initial Catalog=DDP;Integrated Security=True" providerName="System.Data.SqlClient" />
If this code doesn't work, then if you installed SQL Server Express with default settings use .\SQLEXPRESS instead of .:
<add name="UserDBContext" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=DDP;Integrated Security=True" providerName="System.Data.SqlClient" />
Related
I am referencing 2 databases in ASP.NET using Entity Framework.
In my web.config file, I can see the connection strings for the 2 databases:
<connectionStrings>
<add name="RContext"
connectionString="metadata=res://*/Models.RModel.csdl|res://*/Models.RModel.ssdl|res://*/Models.RModel.msl;provider=System.Data.SqlClient;provider connection string="data source=localhost\SQLEXPRESS;initial catalog=RStreamline;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework""
providerName="System.Data.EntityClient" />
<add name="CEntities"
connectionString="metadata=res://*/Models.CModel.csdl|res://*/Models.CModel.ssdl|res://*/Models.CModel.msl;provider=System.Data.SqlClient;provider connection string="data source=localhost\SQLEXPRESS;initial catalog=RStreamline;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework""
providerName="System.Data.EntityClient" />
</connectionStrings>
Can I somehow implement alternate connection strings where the datasource refers to the prod server for the release?
This is typically handled with web.config transforms.
In your project you would have:
web.config
web.Release.config
For example in your web.Release.config transform you would have something like this:
<?xml version="1.0"?>
<configuration xmlns:xdt="https://schemas.microsoft.com/XML-Document-Transform">
<connectionStrings>
<add name="RContext"
connectionString="RContext-Prod-Connection-String"
xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/>
<add name="CEntities"
connectionString="CEntities-Prod-Connection-String"
xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/>
</connectionStrings>
</configuration>
You'll notice the xdt:Transform="SetAttributes" xdt:Locator="Match(name)" bit, which says, in the main web.config find the connectionString by name and replace its attributes with the ones defined here.
This will automatically happen when you publish the application.
I have an ASP.net web application hosted in IIS. This application use SQL Server.
I removed connection string in web.config. But when I start the application, it is still connected to it.
The connection string was nowhere explicitly stated.
how does it work?
By default the machine.config located in C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config have the following connection string configured.
<connectionStrings>
<add name="LocalSqlServer" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient"/>
</connectionStrings>
By leaving the <connectionStrings> section of your web.config empty you are not removing the default connectionstring. To ensure that you have no configured connection string you should use a <clear /> element in your web.config file.
<connectionStrings>
<clear />
</connectionStrings>
I have created an mvc 4 database application on "PC1". I just have chosen by right click "Database SQL Server" and created Entity Framework with Database First approach. It works okay at "PC1". But when I copied my project to another PC, then the project failed.
I do not have an SQL Server at the PC. I just copied the mvc 4 project with local database.
The error is: "...(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)"
I suppose that I should rewrite connection string. I've done this steps:
http://msdn.microsoft.com/en-us/library/hh873188.aspx
And I have tried to change a connection string from:
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=aspnet-TestApplication-20140918110411;Integrated Security=SSPI" providerName="System.Data.SqlClient" />
<add name="CustomerDatabaseEntities" connectionString="metadata=res://*/UserModel.csdl|res://*/UserModel.ssdl|res://*/UserModel.msl;provider=System.Data.SqlClient;provider connection string="data source=.\SQLEXPRESS;attachdbfilename=|DataDirectory|\CustomerDatabase.mdf;integrated security=True;user instance=True;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
<add name="CustomerDatabaseEntities" connectionString="metadata=res://*/UserModel.csdl|res://*/UserModel.ssdl|res://*/UserModel.msl;provider=System.Data.SqlClient;provider connection string="data source=.\SQLEXPRESS;attachdbfilename=|DataDirectory|\CustomerDatabase.mdf;integrated security=True;user instance=True;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
To:
I have added name of PC(TomPC) to connection string:
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=.TomPC\SQLEXPRESS;Initial Catalog=aspnet-TestApplication-20140918110411;Integrated Security=SSPI" providerName="System.Data.SqlClient" />
<add name="CustomerDatabaseEntities" connectionString="metadata=res://*/UserModel.csdl|res://*/UserModel.ssdl|res://*/UserModel.msl;provider=System.Data.SqlClient;provider connection string="data source=.TomPC\SQLEXPRESS;attachdbfilename=|DataDirectory|\CustomerDatabase.mdf;integrated security=True;user instance=True;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
<add name="CustomerDatabaseEntities" connectionString="metadata=res://*/UserModel.csdl|res://*/UserModel.ssdl|res://*/UserModel.msl;provider=System.Data.SqlClient;provider connection string="data source=.TomPC\SQLEXPRESS;attachdbfilename=|DataDirectory|\CustomerDatabase.mdf;integrated security=True;user instance=True;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
However, it fails with the same error.
I would greatly appreciate any help!
You will also need to ensure that TCP/IP is enabled in SQL Server config on TomPC, and also open up port 1433 (the default port, but it might be different, e.g. if there's more than one instance of SQL running on that PC).
Data Source=.\SQLEXPRESS
The . means "localhost" or 127.0.0.1
So adding the . means localhost\SQLEXPRESS or 127.0.0.1\SQLEXPRESS
You need to change it to:
Data Source=TomPC\SQLEXPRESS
I've found an answer. The application could not connect as connection string should be modified as LocalDB:
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=(LocalDB)\v11.0;Initial Catalog=aspnet-TestApplication-20140918110411;Integrated Security=SSPI" providerName="System.Data.SqlClient" />
<add name="CustomerDatabaseEntities" connectionString="metadata=res://*/UserModel.csdl|res://*/UserModel.ssdl|res://*/UserModel.msl;provider=System.Data.SqlClient;provider connection string="data source=(LocalDB)\v11.0;attachdbfilename=|DataDirectory|\CustomerDatabase.mdf;integrated security=True;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
http://www.asp.net/mvc/tutorials/mvc-5/introduction/creating-a-connection-string
I tried to use integrated security SSIP but it takes anonymous user so any developer can access the database. So anybody have any solution for this problem?
<connectionStrings>
<add name="Local2" connectionString="Data Source=ADMIN-PC\SQLEXPRESS;Initial Catalog=NEOPLAST_LIVE;username="abc" password="****" providerName="System.Data.SqlClient" />
</connectionStrings>
I am have a register page on my website built in VS2010 and when I fill the form in a click register I am getting the following error. Help would be appreciated.
System.Exception was unhandled by user code
Message=Insert Error:Directory lookup for the file "C:\Users\myname\Documents\myname\Project\App_Data\SJDatabase.mdf" failed with the operating system error 5(error not found).
Cannot attach the file 'C:\Users\myname\Documents\myname\Project\App_Data\SJDatabase.mdf' as database 'SJDatabase'.
connection string:
<connectionStrings>
<add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient"/>
<add name="MyConsString" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|SJDatabase.mdf;
Initial Catalog=SJDatabase;
Integrated Security=SSPI;"
providerName="System.Data.SqlClient" />
</connectionStrings>
I think you are missing a backslash on |DataDirectory|\SJDatabase.mdf
also, you have Integrated Security=SSPI twice and I dont think you need the AttachDBFileName part
try something more simple like this:
"data source=ServerName;Initial Catalog=SJDatabase;Integrated Security=SSPI" providerName="System.Data.SqlClient"