تخزين البيانات و استرجاعها و الاضافة عليها و الحذف التحديث بدون استخدام Database

هلا اناعرفت كيف اعرض البيانات على داتا غريد من مصفوفة

بس المشكلة لما اضيف بيانات ما ينضاف الا صف واحد وبس ولما اضيف صف ثاني ما ينضاف طيب كيف ممكن اضيف واحذف البيانات على هذا الكود

اولا هذا كود الكلاس

Imports Microsoft.VisualBasic
Public Class Contact
	Dim _ID As Integer
	Dim _name As String
	Dim _title As String
	Dim _company As String
	Dim _married As Boolean
	Public Property ID() As Integer
		Get
			ID = _ID
		End Get
		Set(ByVal Value As Integer)
			_ID = Value
		End Set
	End Property
	Public Property Name() As String
		Get
			Name = _name
		End Get
		Set(ByVal Value As String)
			_name = Value
		End Set
	End Property
	Public Property Title() As String
		Get
			Title = _title
		End Get
		Set(ByVal Value As String)
			_title = Value
		End Set
	End Property
	Public Property Company() As String
		Get
			Company = _company
		End Get
		Set(ByVal Value As String)
			_company = Value
		End Set
	End Property
	Public Property Married() As Boolean
		Get
			Married = _married
		End Get
		Set(ByVal Value As Boolean)
			_married = Value
		End Set
	End Property
	Public Overrides Function ToString() As String
		Return (_name)
	End Function
End Class

وهذا كود الصفحة

Partial Class _Default
	Inherits System.Web.UI.Page
	Dim Contacts As New ArrayList()
	Dim c As New Contact
	Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
		'
		'Load
		'
		c.ID = 1
		c.Name = "Sam"
		c.Company = "PIO"
		c.Title = "Sales Representative"
		c.Married = True
		Contacts.Add(c)
		Me.GridView1.DataSource = Contacts
		Me.GridView1.DataBind()
	End Sub

	Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
		'
		'Add
		'
		c.ID = TextBox4.Text
		c.Name = TextBox1.Text
		c.Company = TextBox1.Text
		c.Title = TextBox3.Text
		c.Married = True
		Contacts.Add(c)
		Me.GridView1.DataSource = Contacts
		Me.GridView1.DataBind()
	End Sub

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