protected void btnTim_Click(object sender, EventArgs e) { if (txtMac.Text.Length > 3) { NW_Traffic tf = new NW_Traffic(); tf.MacAddress = txtMac.Text; tf.Month = DateTime.Now.Month.ToString(); tf.Year = DateTime.Now.Year.ToString(); DataTable dt = tf.NW_Trafic_Getlike(); GridItem.DataSource = dt; GridItem.DataBind(); ChartItem.DataSource = dt; ChartItem.Series["Series1"].XValueMember = "DateTime"; ChartItem.Series["Series1"].YValueMembers = "DS"; ChartItem.Series["Series2"].XValueMember = "DateTime"; ChartItem.Series["Series2"].YValueMembers = "US"; ChartItem.DataBind(); //_Ip = dt.Rows[0]["IpAddress"].ToString(); //if (dt.Rows.Count > 0) // btnReset.Visible = true; //else // btnReset.Visible = false; } }