读取txt文本中的值 用gridview显示

 1.后台:

   public DataTable LoadData(string fileName)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("抽奖用户", typeof(string));
            dt.Columns.Add("抽奖时间", typeof(string));
            dt.Columns.Add("是否中奖", typeof(string));
            dt.Columns.Add("剩余抽奖次数", typeof(string));
            string path = Server.MapPath(fileName);

            FileUpload1.SaveAs(path);
            //打开文件，将文本读入流中//使用系统默认编码试一下StreamReader reader=new StreamReader(filename,System.Text.Encoding.Default)//将流中的文本输出到textBoxMessage中TextBoxMessage.Text=reader.ReadToEnd();//关闭流reader.Close();
            StreamReader reader = new StreamReader(path, System.Text.Encoding.Default);
            this.Label1.Text = reader.ReadToEnd();//关闭流reader.Close();

          

            string[] arrstr = this.Label1.Text.Split(new char[] { '\r', '\n' });//截取行

            string[] cells;

            for (int i = 0; i < arrstr.Length; i++)//循环行数
            {
                cells = arrstr[i].ToString().Split('\t');//取每行中的每一列

                    DataRow rows = dt.NewRow();
                    rows["抽奖用户"] = cells[0];
                    rows["抽奖时间"] = cells[1];
                    rows["是否中奖"] = cells[2];
                    rows["剩余抽奖次数"] = cells[3];
                    dt.Rows.Add(rows);

               
            }

            reader.Close();

            return dt;

        }

        protected void check_Click(object sender, EventArgs e)
        {
            string filename = this.FileUpload1.FileName.Trim();

            if (!filename.EndsWith("txt"))
            {
                ScriptManager.RegisterStartupScript(this, GetType(), "", "alert('只能传txt文件')", true);
                return;
            }

        this.GridView1.DataSource= LoadData(filename);
        this.GridView1.DataBind();

        }

2.前台

 

    <asp:FileUpload ID="FileUpload1" runat="server" />
    <asp:Button runat="server" ID="check"  Text="导入" onclick="check_Click"/>
&nbsp;<asp:Label ID="Label1" runat="server" Text="Label" Visible="false"></asp:Label>
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
        CellPadding="4" ForeColor="#333333" GridLines="None">
        <RowStyle BackColor="#EFF3FB" />
        <Columns>
            <asp:BoundField DataField="抽奖用户" HeaderText="抽奖用户" />
            <asp:BoundField DataField="抽奖时间" HeaderText="抽奖时间" />
            <asp:BoundField DataField="是否中奖" HeaderText="是否中奖" />
            <asp:BoundField DataField="剩余抽奖次数" HeaderText="剩余抽奖次数" />
        </Columns>
        <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
        <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
        <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <EditRowStyle BackColor="#2461BF" />
        <AlternatingRowStyle BackColor="White" />
    </asp:GridView>

 

3.txt文本中的内容:

抽奖用户 抽奖时间 是否中奖 剩余抽奖次数
bowencyanj 2011-04-20 14:10:38 是 0 
bowencyanj 2011-04-20 14:10:10 是 1 
bowencyanj 2011-04-20 14:08:52 否 2 
bowencyanj 2011-04-20 11:06:11 否 3 
bowencyanj 2011-04-20 11:06:02 否 4 
bowencyanj 2011-04-20 11:05:34 是 5 
bowencyanj 2011-04-20 10:01:58 是 6 
bowencyanj 2011-04-20 10:00:46 否 7 
bowencyanj 2011-04-20 09:59:12 是 8 
bowencyanj 2011-04-20 09:57:25 是 9