LineChart.aspx.cs

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using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml.Linq;
namespace WebChart
{
    public partial class LineChart : System.Web.UI.Page
    {
        public string x = "";
        public string zongshu = "";
        protected void Page_Load(object sender, EventArgs e)
        {
            Ltldate.Text = DateTime.Now.ToString("yyyy-MM-dd");
            Ltltime.Text = DateTime.Now.ToString("HH:mm");
            GetDta();
        }


        public void GetDta()
        {
            DataTable dtdata = new DataTable();
            dtdata.Columns.Add("xdate");
            dtdata.Columns.Add("Qty");
            Random random = new Random();
            for (int i = 0; i < 15; i++)
            {
                DataRow dr = dtdata.NewRow();
                dr[0] = DateTime.Now.AddDays(-i).ToString("MM-dd");
                dr[1] = random.Next(200, 501);//通过名称赋值
                dtdata.Rows.Add(dr);
            }

            if (dtdata.Rows.Count > 0)
            {
                for (int j = 0; j < dtdata.Rows.Count; j++)
                {
                    x = x + ",'" + dtdata.Rows[j]["xdate"].ToString() + "'";
                    zongshu = zongshu + "," + dtdata.Rows[j]["Qty"].ToString();
                }
            }

            x = x.Substring(1);
            zongshu = zongshu.Substring(1);
        }
    }
}