i got system argument excetion

Question

<connectionStrings>
<add name="EmployeeContext" providerName="System.Data.SqlClient" connectionString="Data Source=.;Initial Catalog=ram;User name=sa;Password=ramakoti" />

</connectionStrings>

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

An exception of type 'System.ArgumentException' occurred in System.Data.dll but was not handled in user code

Additional information: Keyword not supported: 'user name'.....