i am retrieving date from database into textbox which textmode is date, but date is not getting displaying

            SqlCommand cmde = new SqlCommand("Sp_Retrieve_Pay_M", con);
            cmde.CommandType = CommandType.StoredProcedure;
            cmde.Parameters.AddWithValue("@ID", lbrecid.Text);

            cmde.Connection = con;
            try
            {
                con.Open();
                SqlDataReader sdr = cmde.ExecuteReader();
                while (sdr.Read())
                {            
                    txtentdate.Text = sdr["Pay_Date"].ToString();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {

            }
            con.Close();

Date :<asp:TextBox ID="txtentdate" TextMode="Date"  Width="134px" runat="server"></asp:TextBox>