ASP.NETです。呼び出したクラスで、表示の処理をさせたいです。

Public Class WebForm1

    Inherits System.Web.UI.Page



    Public WithEvents Label1 As System.Web.UI.WebControls.Label  'PublicにしないとClass1から見えない



    〜



    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Dim MyCls as Class1



        If Not(isPostBack) Then

            MyCls.DispPage(Me)

        End If

    End Sub

    

    〜

    

End Class

Public Class Class1



    Public Sub DispPage(TargerPage as WebForm1)



        TargetPage.Response.Write("Hello ASP.NET!")

        TargetPage.Label1.Text = "Hello ASP.NET!!"



    End Sub



End Class

//ページ側

Public class WebForm1: System.Web.UI.Page

{

    protected System.Web.UI.WebControls.Button Button1;

    protected System.Web.UI.WebControls.Label Label1;



    〜〜〜略



    //例えばボタン押下時

    private void Button1_Click(object sender, System.EventArgs e)

    {

        Class1.DispPage(Label1);

    }

}



//クラス側

Public Class Class1

{

    public static void DispPage(System.Web.UI.WebControls.Label label)

    {

        label.Text = "文字列";

    }

}

//ページ側

Public class WebForm1: System.Web.UI.Page

{

    protected System.Web.UI.WebControls.Button Button1;

    protected System.Web.UI.WebControls.Label Label1;



    〜〜〜略



    private void Button1_Click(object sender, System.EventArgs e)

    {

        Class1.DispPage(this);

    }

    //プロパティ設定

    public string LabelText

    {

        set

        {

            this.Label1.Text = value;

        }

    }

}



//クラス側

Public Class Class1

{

    public static void DispPage(page)

    {

        page.LabelText = "文字列";

    }

}