Metodo agregar visual studio 2010

Imports System.Data.SqlClient
Public Class Form1
Inherits Windows.Forms.Form
Private conexion As New SqlConnection
Private ds As DataSet
Private dt As New SqlDataAdapterPrivate Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
conexion = New SqlConnection
conexion.ConnectionString = "DataSource=JUANDEDIOS;Initial Catalog=agenda;Integrated Security=True"
dt = New SqlDataAdapter
Dim insercion As New SqlCommand("INSERT INTO AGENDA" &"(IDPersona,Nombre,ape_pat,ape_mat,direccion,colonia,ciudad,telefono,celular,e_mail,apodo)Values(@IDPersona,@Nombre,@ape_pat,@ape_mat,@direccion,@colonia,@ciudad,@telefono,@celular,@e_mail,@apodo)", conexion)
dt.InsertCommand = inserciondt.InsertCommand.Parameters.Add(New SqlParameter("@IDPersona", SqlDbType.Int))
dt.InsertCommand.Parameters.Add(New SqlParameter("@Nombre", SqlDbType.Char))dt.InsertCommand.Parameters.Add(New SqlParameter("@ape_mat", SqlDbType.Char))
dt.InsertCommand.Parameters.Add(New SqlParameter("@ape_pat", SqlDbType.Char))
dt.InsertCommand.Parameters.Add(NewSqlParameter("@direccion", SqlDbType.Char))
dt.InsertCommand.Parameters.Add(New SqlParameter("@colonia", SqlDbType.Char))
dt.InsertCommand.Parameters.Add(New SqlParameter("@ciudad",SqlDbType.Char))
dt.InsertCommand.Parameters.Add(New SqlParameter("@telefono", SqlDbType.Char))
dt.InsertCommand.Parameters.Add(New SqlParameter("@celular", SqlDbType.Char))dt.InsertCommand.Parameters.Add(New SqlParameter("@e_mail", SqlDbType.Char))
dt.InsertCommand.Parameters.Add(New SqlParameter("@apodo", SqlDbType.Char))

Dim consulta As NewSqlCommand("SELECT * FROM agenda", conexion)
dt.SelectCommand = consulta
ds = New DataSet
Me.cargardatos()
End Sub
Private Sub cargardatos()
'vaciar el database...