changenewspaper.cs

订阅报刊的企业员工用户希望通过企业的系统更方便、快捷地订阅报刊

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

using 报刊管理.类;     //添加引用
using System.Data.SqlClient;

namespace 报刊管理.报刊处理
{
    public partial class ChangeNewspaper : Form
    {
        public ChangeNewspaper()
        {
            InitializeComponent();
        }

        SqlBaseClass SqlClass = new SqlBaseClass();    

        private void ListInfo(string SQL)
        {
            try
            {
                this.listView1.Items.Clear();
                SqlDataAdapter da = new SqlDataAdapter(SQL, SqlClass.GetCon());
                DataTable dt = new DataTable();
                da.Fill(dt);
                foreach (DataRow dr in dt.Rows)
                {
                    ListViewItem lv;
                    lv = new ListViewItem(dr[0].ToString());
                    lv.SubItems.Add(dr[1].ToString());
                    lv.SubItems.Add(dr[2].ToString());
                    lv.SubItems.Add(dr[3].ToString());
                    lv.SubItems.Add(dr[4].ToString());
                    this.listView1.Items.Add(lv);
                }
            }
            catch { }

        }

        private void ChangeNewspaper_Load(object sender, EventArgs e)
        {
            string Str_select = "SELECT NewspaperID,NewspaperName,NewspaperCompany,NewspaperTime,NewspaperPrice FROM N_Newspaper";
            ListInfo(Str_select.ToString());
           
        }

        private void button1_Click(object sender, EventArgs e)
        {
           
            string Str_sqlcmd = "UPDATE N_Newspaper SET NewspaperName='" + this.textBox9.Text + "',NewspaperPrice='" + this.textBox8.Text + "',NewspaperCompany='" + this.textBox7.Text + "', NewspaperTime='" + this.textBox2.Text + "'WHERE NewspaperID=" + this .textBox10.Text+ " ";
            if (SqlClass.GetExecute(Str_sqlcmd))
            {
                MessageBox.Show("修改成功！", "输入提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            else
            {
                MessageBox.Show("修改失败,请重新修改！", "输入提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            string Str_select = "SELECT NewspaperID,NewspaperName,NewspaperCompany,NewspaperTime,NewspaperPrice FROM N_Newspaper";
            ListInfo(Str_select.ToString());
            this.textBox10.Text = "";
            this.textBox9.Text = "";
            this.textBox8.Text = "";
            this.textBox7.Text = "";
            this.textBox2.Text = "";

        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void textBox10_TextChanged(object sender, EventArgs e)
        {
            string Str_select1 = "SELECT * FROM N_Newspaper WHERE NewspaperID = '" + this.textBox10.Text + "' ";
            SqlDataReader dr = SqlClass.GetReader(Str_select1);
            if (dr.Read())
            {
                this.textBox7.Text = dr["NewspaperCompany"].ToString().Trim();
                this.textBox8.Text = dr["NewspaperPrice"].ToString().Trim();
                this.textBox9.Text = dr["NewspaperName"].ToString().Trim();
                this.textBox2.Text = dr["NewspaperTime"].ToString().Trim();
            }
            dr.Close();
        }

     


    }
}