VB.Net by API/System.Data/ParameterDirection

ParameterDirection.Output

   
Imports System
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Xml.Serialization
Imports System.Xml
Imports System.Windows.Forms
Imports System.Data.SqlClient

Public Class MainClass
    Shared Dim WithEvents con As SqlConnection
    Shared Sub Main()
        con = New SqlConnection("Server=(local)\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI") 
        Dim cmd As New SqlCommand("GetCountryAndOutputParam", con)
        cmd.rumandType = CommandType.StoredProcedure
        cmd.Parameters.Add( _
            New SqlParameter("@country", SqlDbType.VarChar, 50)).Value = "USA"
        cmd.Parameters.Add(New SqlParameter("@count", SqlDbType.Int))
        cmd.Parameters("@count").Direction = ParameterDirection.Output
        Try
            con.Open()
            Dim reader As SqlDataReader = cmd.ExecuteReader()
            While reader.Read()
                Console.WriteLine("{0} - {1}", reader.GetString(0), reader.GetString(1))
            End While
            reader.Close()
        Finally
            con.Close()
        End Try
        Console.WriteLine("{0} - {1}", _
                          "Count", cmd.Parameters("@count").Value.ToString())
    End Sub
End Class