tushubianmaruku.cs

Vs2005C#图书管理系统初学的看看有好处的

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace tsh
{
    public partial class tushubianmaruku : Form
    {
        public tushubianmaruku()
        {
            InitializeComponent();
        }
        private bool old = false;
        DB.ClsSQL sql = new DB.ClsSQL(".", "mylw", "sa", "", 3);
        DataSet ds;
        private void textBbh_KeyDown(object sender, KeyEventArgs e)
        {
            //e.KeyCode.ToString() == "Enter" ||
            if (e.KeyCode.ToString() == "Down")
            {
                if (textBbh.Text == "")
                {
                    MessageBox.Show("图书编号不能为空，请输入图书编号！！", "提示");
                    textBbh.Focus();
                }
                else
                {
                    string s = "select * from book where tushubianhao='" + textBbh.Text.Trim() + "'";
                    ds = sql.DBToDS(s, "book");
                    int n = ds.Tables["book"].Rows.Count;
                    if (n != 0)
                    {
                        old = true;
                        labelmessg.Visible = true;
                        labelmessg.Text = "旧书信息，输入购入数量";
                        textBbh.Enabled = false;
                        textBflh.Text = ds.Tables["book"].Rows[0]["fenleihao"].ToString();
                        textBshm.Text = ds.Tables["book"].Rows[0]["shuming"].ToString();
                        textBlb.Text = ds.Tables["book"].Rows[0]["leibie"].ToString();
                        textBzzh.Text = ds.Tables["book"].Rows[0]["zuozhe"].ToString();
                        textBchbsh.Text = ds.Tables["book"].Rows[0]["chubanshe"].ToString();
                        textBbc.Text = ds.Tables["book"].Rows[0]["banci"].ToString();
                        textBkb.Text = ds.Tables["book"].Rows[0]["kaiben"].ToString();
                        textBzsh.Text = ds.Tables["book"].Rows[0]["zishu"].ToString();
                        textBjg.Text = ds.Tables["book"].Rows[0]["jiage"].ToString();
                        textBkcsh.Text = ds.Tables["book"].Rows[0]["kucunshu"].ToString();
                        textBgrsh.Enabled = true;
                        textBgrsh.Focus();
                    }
                    else
                    {
                        old = false;

                        labelmessg.Visible = true;
                        labelmessg.Text = "新增图书，输入各项信息";
                        textBbh.Enabled = false;
                        textBflh.Enabled = true;
                        textBflh.Focus();
                    }
                }
            }
            
        }

        private void buttbc_Click(object sender, EventArgs e)
        {
            if (old == false)
            {
                string s1 = "insert into book (tushubianhao,fenleihao,shuming,leibie,zuozhe,chubanshe,banci,kaiben,zishu,jiage,kucunshu,zaikushu) values ('" + textBbh.Text.Trim() + "','" + textBflh.Text.Trim() + "','" + textBshm.Text.Trim() + "','" + textBlb.Text.Trim() + "','" + textBzzh.Text.Trim() + "','" + textBchbsh.Text.Trim() + "','" + textBbc.Text.Trim() + "','" + textBkb.Text.Trim() + "','" + textBzsh.Text.Trim() + "'," + float.Parse(textBjg.Text.Trim())+ "," + int.Parse(textBgrsh.Text.Trim())+ "," + int.Parse(textBgrsh.Text.Trim())+")";
                sql.SQLCommand(s1);
               // MessageBox.Show("旧书入库添加成功！！", "信息提示");
            }
            else
            {
                int grshu = int.Parse(textBgrsh.Text);
                string s2 = "update book set zaikushu=zaikushu+" + grshu + ",kucunshu=kucunshu+" + grshu + " where tushubianhao='" + textBbh.Text.Trim() + "'";
                sql.SQLCommand(s2);
                //MessageBox.Show("新增图书入库成功！！", "信息提示");
            }
            MessageBox.Show("已成功保存图书信息。", "提示");
            buttqx_Click(null, null);






        }

        private void buttqx_Click(object sender, EventArgs e)
        {
           
            textBbh.Text = "";
            textBbh.Enabled = true;
            textBbh.Focus();
            textBflh.Text ="";
            textBflh.Enabled = false;
            textBshm.Text = "";
            textBshm.Enabled = false;
            textBlb.Text ="";
            textBlb.Enabled = false;
            textBzzh.Text ="";
            textBzzh.Enabled = false;
            textBchbsh.Text ="";
            textBchbsh.Enabled = false;
            textBbc.Text ="";
            textBbc.Enabled = false;
            textBkb.Text ="";
            textBkb.Enabled = false;
            textBzsh.Text ="";
            textBzsh.Enabled = false;
            textBjg.Text ="";
            textBjg.Enabled = false;
            textBkcsh.Text = "";
            textBkcsh.Enabled = false;
            textBgrsh.Text = "";
            textBgrsh.Enabled = false;
            labelmessg.Visible = false;
        }

        private void butttch_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void textBbh_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!(((e.KeyChar >= '0') && (e.KeyChar <= '9')) || e.KeyChar <= 31))
                e.Handled = true; 
            if (e.KeyChar==13)
            {   
           
                if (textBbh.Text == "")
                {
                    MessageBox.Show("图书编号不能为空，请输入图书编号！！", "提示");
                    textBbh.Focus();
                }
                else
                {
                    string s = "select * from book where tushubianhao='" + textBbh.Text.Trim() + "'";
                    ds = sql.DBToDS(s, "book");
                    int n = ds.Tables["book"].Rows.Count;
                    if (n != 0)
                    {
                        old = true;
                        labelmessg.Visible = true;
                        labelmessg.Text = "旧书信息，输入购入数量";
                        textBbh.Enabled = false;
                        textBflh.Text = ds.Tables["book"].Rows[0]["fenleihao"].ToString();
                        textBshm.Text = ds.Tables["book"].Rows[0]["shuming"].ToString();
                        textBlb.Text = ds.Tables["book"].Rows[0]["leibie"].ToString();
                        textBzzh.Text = ds.Tables["book"].Rows[0]["zuozhe"].ToString();
                        textBchbsh.Text = ds.Tables["book"].Rows[0]["chubanshe"].ToString();
                        textBbc.Text = ds.Tables["book"].Rows[0]["banci"].ToString();
                        textBkb.Text = ds.Tables["book"].Rows[0]["kaiben"].ToString();
                        textBzsh.Text = ds.Tables["book"].Rows[0]["zishu"].ToString();
                        textBjg.Text = ds.Tables["book"].Rows[0]["jiage"].ToString();
                        textBkcsh.Text = ds.Tables["book"].Rows[0]["kucunshu"].ToString();
                        textBgrsh.Enabled = true;
                        textBgrsh.Focus();
                    }
                    else
                    {
                        old = false;
                        labelmessg.Visible = true;
                        labelmessg.Text = "新增图书，输入各项信息";
                        textBbh.Enabled = false;
                        textBflh.Enabled = true;
                        textBflh.Focus();
                    }
                }
            }
        }

        private void textBgrsh_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!(((e.KeyChar >= '0') && (e.KeyChar <= '9')) || e.KeyChar <= 31))
                e.Handled = true;
            if (e.KeyChar == 13)
            {

                if (textBgrsh.Text == "")
                {
                    MessageBox.Show("图书购入数不能为空，请输入图书购入数！！", "提示");
                    textBgrsh.Focus();
                }
                else
                {

                    textBgrsh.Enabled = false;
                    buttbc.Enabled = true;
                    buttbc.Focus();
                    
                }
            }

        }

        private void tushubianmaruku_Load(object sender, EventArgs e)
        {
            labelmessg.Visible = false;
        }

        private void textBflh_KeyPress(object sender, KeyPressEventArgs e)
        { 
            
            if (e.KeyChar == 13)
            {

                if (textBflh.Text == "")
                {
                    MessageBox.Show("图书分类号不能为空，请输入图书分类号！！", "提示");
                    textBflh.Focus();
                }
                else
                {

                    textBflh.Enabled = false;
                    textBshm.Enabled = true;
                    textBshm.Focus();
                }
            }
        }

        private void textBshm_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13)
            {

                if (textBshm.Text == "")
                {
                    MessageBox.Show("图书书名不能为空，请输入图书书名！！", "提示");
                    textBshm.Focus();
                }
                else
                {

                    textBshm.Enabled = false;
                    textBlb.Enabled = true;
                    textBlb.Focus();
                }
            }
        }

        private void textBlb_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13)
            {

                if (textBlb.Text == "")
                {
                    MessageBox.Show("图书类别不能为空，请输入图书类别！！", "提示");
                    textBlb.Focus();
                }
                else
                {

                    textBlb.Enabled = false;
                    textBzzh.Enabled = true;
                    textBzzh.Focus();
                }
            }
        }

        private void textBzzh_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13)
            {

                if (textBzzh.Text == "")
                {
                    MessageBox.Show("图书作者不能为空，请输入图书作者！！", "提示");
                    textBzzh.Focus();
                }
                else
                {

                    textBzzh.Enabled = false;
                    textBchbsh.Enabled = true;
                    textBchbsh.Focus();
                }
            }
        }

        private void textBchbsh_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13)
            {

                if (textBchbsh.Text == "")
                {
                    MessageBox.Show("图书出版社不能为空，请输入图书出版社！！", "提示");
                    textBchbsh.Focus();
                }
                else
                {

                    textBchbsh.Enabled = false;
                    textBbc.Enabled = true;
                    textBbc.Focus();
                }
            }
        }

        private void textBbc_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13)
            {

                if (textBbc.Text == "")
                {
                    MessageBox.Show("图书版次不能为空，请输入图书版次！！", "提示");
                    textBbc.Focus();
                }
                else
                {

                    textBbc.Enabled = false;
                    textBkb.Enabled = true;
                    textBkb.Focus();
                }
            }

        }

        private void textBkb_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13)
            {

                if (textBkb.Text == "")
                {
                    MessageBox.Show("图书开本不能为空，请输入图书开本！！", "提示");
                    textBkb.Focus();
                }
                else
                {

                    textBkb.Enabled = false;
                    textBzsh.Enabled = true;
                    textBzsh.Focus();
                }
            }
        }

        private void textBzsh_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13)
            {

                if (textBzsh.Text == "")
                {
                    MessageBox.Show("图书字数不能为空，请输入图书字数！！", "提示");
                    textBzsh.Focus();
                }
                else
                {

                    textBzsh.Enabled = false;
                    textBjg.Enabled = true;
                    textBjg.Focus();
                }
            }
        }

        private void textBjg_KeyPress(object sender, KeyPressEventArgs e)