Web Forms :: Databinding Methods Can Only Be Used In The Context Of Databound Control

   SqlCommand _cmd1 = new SqlCommand("Viewstate2", _cn);
_cmd1.CommandType = CommandType.StoredProcedure;
_cmd1.Parameters.AddWithValue("@behcode", data);
string data1 = Request.QueryString["id"].ToString();
_cmd1.Parameters.AddWithValue("@id", data1);
_cn.Open();
SqlDataReader _dr1 = _cmd1.ExecuteReader();
while (_dr1.Read())
{
lblprice.Text = _dr1["price"].ToString();
Lbldate.Text = System.Convert.ToDateTime(miladitoshamsi(Eval("Date"))).ToString(" yyyy/MM/dd");

In the above code I get the following error

Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.Source Error: 

Line 97: lblprice1.Text = _dr1["price1"].ToString();
Line 98: lblprice.Text = _dr1["price"].ToString();
Line 99: Lbldate.Text = System.Convert.ToDateTime(miladitoshamsi(Eval("Date"))).ToString(" yyyy/MM/dd");