Connection string for SQL Server native client in ASP.NET web.config

c# asp.net .net sql-server sql-server-native-client
vmb picture vmb · Feb 16, 2018 · Viewed 10.7k times · Source

I want to connect to SQL Server 2012 using SQL Server native client from my ASP.NET application. Currently, I have one existing connection string connect using odbc and working fine.

<appSettings>
    <add key="StagingConnect" 
         value="Integrated Security=True;Initial Catalog=Staging;Data Source=AUBDSG01.AUYA.NET\INST1"/>
</appSettings>

When I tried as below, the code throws an exception

<add key="StagingConnect"  
     value="Provider=SQLNCLI11;Integrated Security=True;Initial Catalog=Staging;Data Source=AUBDSG01.AUYA.NET\INST1"/>

Exception:

System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown.

System.ArgumentException: Keyword not supported: 'provider'.
at System.Data.Common.DbConnectionOptions.ParseInternal(Hashtable parsetable, String connectionString, Boolean buildChain, Hashtable synonyms, Boolean firstKey)
at System.Data.Common.DbConnectionOptions..ctor(String connectionString, Hashtable synonyms, Boolean useOdbcRules)
at System.Data.SqlClient.SqlConnectionString..ctor(String connectionString)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(String connectionString, DbConnectionOptions previous)
at System.Data.ProviderBase.DbConnectionFactory

How can I modify this connection string so that it should connect through SQL Server native client 11

Answer

Mark Wagoner picture Mark Wagoner · Feb 16, 2018

Not sure exactly how you have it working before because my connection string doesn't go in <appSettings> it goes in a separate <connectionStrings> section. And providerName is an element, not part of the string itself.

Here is an example

  <connectionStrings>
    <clear />
    <add name="xxx" providerName="System.Data.SqlClient" connectionString="Server=(local);Database=yyy;User=zzz;Password=123;MultipleActiveResultSets=True" />
  </connectionStrings>

Hope this helps.

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