public void InsertRow(string myConnectionString)
{
// If the connection string is null, use a default.
if(myConnectionString == "")
{
myConnectionString = "Initial Catalog=Northwind;Data Source=localhost;Integrated Security=SSPI;";
}
SqlConnection myConnection = new SqlConnection(myConnectionString);
string myInsertQuery = "INSERT INTO Customers (CustomerID, CompanyName) Values('NWIND', 'Northwind Traders')";
SqlCommand myCommand = new SqlCommand(myInsertQuery);
myCommand.Connection = myConnection;
myConnection.Open();
myCommand.ExecuteNonQuery();
myCommand.Connection.Close();
}

Всмысле

Public Sub InsertRow(myConnectionString As String)
' If the connection string is null, use a default.
If myConnectionString = "" Then
myConnectionString = "Initial Catalog=Northwind;Data Source=localhost;Integrated Security=SSPI;"
End If
Dim myConnection As New SqlConnection(myConnectionString)
Dim myInsertQuery As String = "INSERT INTO Customers (CustomerID, CompanyName) Values('NWIND', 'Northwind Traders')"
Dim myCommand As New SqlCommand(myInsertQuery)
myCommand.Connection = myConnection
myConnection.Open()
myCommand.ExecuteNonQuery()
myCommand.Connection.Close()
End Sub 'SelectSqlClientSrvRows