application、viewstate、纯HTML提交方式

Application - 全局公共变量组

存放位置：服务端

所有的访问用户都是访问的同一个变量

声明周期：永久

用法同session类似

viewstate-病例

因为http的无状态性，需要记录上一个页面的状态，因而需要一个viewstate记录上一个页面的状态，然后返回成相应的内容

纯HTML提交：

HTML界面：

要写action与method：

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form action="Default.aspx" method="get">
        货品名称：<input type="text" name="t1"/><br />
        货品数量：<input type="text" name="t2"/><br />
        单价：&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp<input type="text" name="t3"/><br />
        进货时间：<input type="text" name="t4"/><br />
        联系电话：<input type="text" name="t5"/><br />
        仓库号：&nbsp&nbsp&nbsp&nbsp
      <select id="Select1" name="t6">
          <option>g01</option>
          <option>g02</option>
          <option>g03</option>
      </select>  <br />
        <input type="submit" value="提交" />

    </form>

</body>
</html>

实体类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// goods 的摘要说明
/// </summary>
public class goods
{
    public goods()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }
    public string goodsname { get; set; }
    public string number { get; set; }
    public string sprice { get; set; }
    public DateTime intime { get; set; }
    public string gtel { get; set; }
    public string goodsbase { get; set; }

}

数据访问类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.SqlClient;

/// <summary>
/// goodsdata 的摘要说明
/// </summary>
public class goodsdata
{
    SqlConnection conn = null;
    SqlCommand cmd = null;
    public goodsdata()
    {
        conn = new SqlConnection("server=.;database=data0928;user=sa;pwd=123");
        cmd = conn.CreateCommand();
    }
    public bool insert(goods g)
    {
        bool ok = false;
        int count = ;
        cmd.CommandText = "insert into goods values(@a,@b,@c,@d,@e,@f)";
        cmd.Parameters.Clear();
        cmd.Parameters.AddWithValue("@a",g.goodsname);
        cmd.Parameters.AddWithValue("@b",g.number);
        cmd.Parameters.AddWithValue("@c",g.sprice);
        cmd.Parameters.AddWithValue("@d",DateTime.Now);
        cmd.Parameters.AddWithValue("@e",g.gtel);
        cmd.Parameters.AddWithValue("@f",g.goodsbase);
        conn.Open();
        count = cmd.ExecuteNonQuery();
        conn.Close();
        if (count > )
        { ok = true; }
        return ok;
    }
}

aspx界面：

using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        goods g = new goods();
        g.goodsname = Request["t1"];
        g.number = Request["t2"];
        g.sprice = Request["t3"];
        g.intime = Convert.ToDateTime(Request["t4"]);
        this.Title = g.intime.ToString();
        g.gtel = Request["t5"];
        g.goodsbase = Request["t6"];

        bool ok = new goodsdata().insert(g);
        if (ok)
        {
            Response.Write("<script>alert('添加成功')</script>");

        }
    }
}