problem in updating data

HI

I have some textbox -dropdownlist and check box in Edit.aspx page that users can edit their information on this page

these are my code

 protected void ImageButton2_Click1(object sender, ImageClickEventArgs e)
    {

        int data1 = Convert.ToInt32(Request.QueryString["id"].ToString());
     



        SqlCommand _cmd = new SqlCommand("Editestate1", _cn);
        _cmd.CommandType = CommandType.StoredProcedure;
        _cn.Open();



     
        _cmd.Parameters.AddWithValue("@Type", ddltypeE.SelectedItem.Text);
        _cmd.Parameters.AddWithValue("@Measure", txtMesureE.Text);
        _cmd.Parameters.AddWithValue("@Price", TxtpriceE.Text);
       
       
        _cmd.Parameters.AddWithValue("@ID", data1);


        _cmd.ExecuteNonQuery();
        Session["Message"] = true;
        Response.Redirect(Request.Url.AbsoluteUri);
        _cn.Close();


    }

and on page load

    

 protected void Page_Load(object sender, EventArgs e)
    {
 if (!IsPostBack)
        {

int data1 = Convert.ToInt32(Request.QueryString["Id"].ToString());
   SqlCommand _cmd = new SqlCommand("VIEWESTATE", _cn);
            _cmd.CommandType = CommandType.StoredProcedure;
            _cmd.Parameters.AddWithValue("@id", data1);
            _cn.Open();
            SqlDataReader _dr = _cmd.ExecuteReader();
            while (_dr.Read())
            {
txtMesureE.Text = _dr["Measure"].ToString();
   TxtpriceE.Text = _dr["Price"].ToString();
 ddltypeE.Items.FindByText(_dr["Type"].ToString()).Selected = true;
}

and SP

ALTER procedure [dbo].[Editestate1]

,@Type nvarchar(20)
,@Measure varchar(20)
,@Price  nvarchar(20)
0)
,@id int 

AS BEGIN

		
UPDATE Estate_p
SET

,Type=@Type
,Measure=@Measure
,Price=@price



WHERE ID=@id

END

my problem is that when I change textbox's text or dropdownlist item and click on button it didn't update data in database it didn't show any error but didn't update...

I set breakpoint on image button2_click event and have checked Txtmeasure and txtpriceE Text and I saw that these text box had my last value I mean i.e Txtmeasure .text was=200

and I changed  it to=300  when I set break point and checked  Txtmeasure.text  I saw that txtmeasure.text=200   not 300 that I changed

so what can I do

Thanks alot