adduser.ascx.cs

用vs2005和sql2000实现的小型超市管理系统

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class control_adduser : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
        {
            //SqlConnection strcon = DB.createConnection();
            //strcon.Open();
            //SqlCommand cmd = new SqlCommand("select * from userclass ", strcon);
            //SqlDataReader sdr = cmd.ExecuteReader();
            //this.ddluserclass.DataSource = sdr;
            //this.ddluserclass.DataValueField = "用户类型编号";
            //this.ddluserclass.DataTextField = "用户类型";
            //this.ddluserclass.DataBind();
            this.bindtogridview();
        }
    }
    protected void btnadduser_Click(object sender, EventArgs e)
    {

        string txtusername = this.txtusername.Text.ToString();
        string txtuserpwd = this.txtuserpwd.Text.ToString();
        //string ddluserclass = this.ddluserclass.Text.ToString();
        SqlConnection con = DB.createConnection();
        con.Open();
        SqlCommand scd = new SqlCommand("insert into login(用户名,用户密码,用户类型编号)values('" + txtusername + "','" + txtuserpwd + "')",con);
        scd.ExecuteNonQuery();
        con.Close();
        Response.Write("<script language=javascript>alert('您已经添加成功');location='adduser.aspx'</script>");
    }
    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {

    }
    private void bindtogridview()
    {
        SqlConnection con = DB.createConnection();
        SqlDataAdapter sda = new SqlDataAdapter();
        sda.SelectCommand = new SqlCommand("select * from login", con);
        DataSet ds = new DataSet();
        sda.Fill(ds, "login");
        this.GridView1.DataKeyNames = new string[] { "用户名" };
        this.GridView1.DataSource = ds.Tables["login"];
        this.GridView1.DataBind();
    }
    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        this.GridView1.PageIndex = e.NewPageIndex;
        this.bindtogridview();
    }
    protected void ddluserclass_SelectedIndexChanged(object sender, EventArgs e)
    {

    }
}