Creating ConnectionString with SqlConnectionStringBuilder Class in C#

The SqlConnectionStringBuilder was introduces in .NET 2.0 that is used to build the database connection string specific for the SQL Server .

The MSDN defines it as “Provides a simple way to create and manage the contents of connection strings used by the SqlConnection class. ”

The SqlConnectionStringBuilder is defined in the namespace System.Data.SqlClient and can help you build the connection string or even parse an existing connection string to retreive the properties .

private void Form1_Load(object sender, EventArgs e)
     SqlConnectionStringBuilder connectionString = new SqlConnectionStringBuilder();
     connectionString.DataSource = @".\SQLEXPRESS";
     connectionString.InitialCatalog = "MyDatabase";
     connectionString.IntegratedSecurity = true;

Some other notable properties that SqlConnectionStringBuilder provides include

  • AsynchronousProcessing to indicate if the asynchronous processing is allowed for the connection .
  • UserID – Username for the SQL Server
  • Password – Password for the SQL Server
  • etc.


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  1. bi May 28, 2011 Reply
  2. Creating ConnectionString with SqlConnectionStringBuilder Class in C# August 8, 2011 Reply
  3. johny August 9, 2011 Reply

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