frmmanager.cs

C#股票行情查看。使用了Webservice技术

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace StockMarket
{
    public partial class frmManager : Form
    {
        Comm_Func func = new Comm_Func();
        DataSet ds = new DataSet();

        public frmManager()
        {
            InitializeComponent();
        }

        //获取成本价
        void GetSumCost()
        {
            float fResult = 0.00f;
            for (int i = 0; i < dgView.Rows.Count - 1; i++)
            {
                if (dgView.Rows[i].Cells["成本价"].ToString() != "")
                    fResult += float.Parse(dgView.Rows[i].Cells["成本价"].Value.ToString()) * float.Parse(dgView.Rows[i].Cells["购买数量"].Value.ToString());
            }
            labCost.Text = fResult.ToString("0.##") + " 元";
        }

        //初始化
        private void frmManager_Load(object sender, EventArgs e)
        {
            DataTable dt = null;
            if (File.Exists(func.GetStockFileName()))
            {
                ds.ReadXml(func.GetStockFileName());
                dt = ds.Tables[0];
            }
            else
            {
                dt = new DataTable();
                dt.Columns.Add(new DataColumn("股票代码"));
                dt.Columns.Add(new DataColumn("成本价"));
                dt.Columns.Add(new DataColumn("购买数量"));
                ds.Tables.Add(dt);
            }
            dgView.DataSource = dt;
            GetSumCost();
        }

        //保存
        private void btnSave_Click(object sender, EventArgs e)
        {
            if (!File.Exists(func.GetStockFileName()))
                File.Delete(func.GetStockFileName());
            ds.WriteXml(func.GetStockFileName());
            GetSumCost();
        }
    }
}