frmaddbookconcern.cs

数据库课程设计

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Bussiness;
namespace UI
{
    public partial class frmAddBookConcern : Form
    {
        //初始化BookConcernInfo类的对象
        BookConcern objBookConcernInfo = new BookConcern();
        public frmAddBookConcern()
        {
            InitializeComponent();
        }
        public bool IsDigit(string input)
        {
            int count = 0;
            foreach (char ch in input)
            {
                if (char.IsDigit(ch))
                {
                    count++;
                }
            }
            if (input.Length == count)

                return true;
            return false;
        }
        private void YanZheng()
        {
            if (IsDigit(txtBookConcernID.Text.Trim()) || txtBookConcernID.Text.Trim().IndexOf('C') != 0)
            {
                MessageBox.Show("出版商编号必须以Ｃ开头后跟数字");
                txtBookConcernID.Focus();
                return;
            }
            else if (txtBookConcernID.Text.Length != 5)
            {
                MessageBox.Show("出版商编号必须为五位");
                txtBookConcernID.Focus();
                return;
            }
            else if (txtBookConcernName.Text=="")
            {
                MessageBox.Show("出版社名称不能为空！！");
                return;
            }
            else if (txtBookConcernMap.Text == "")
            {
                MessageBox.Show("出版社地址不能为空！");
                return;
            }
        }
        private void btnOk_Click(object sender, EventArgs e)
        {
            try
            {
                YanZheng();
                objBookConcernInfo.InsertBookConcern(txtBookConcernID.Text, this.txtBookConcernName.Text, this.txtBookConcernMap.Text,this.txtBookConcerntel.Text);
                MessageBox.Show("添加成功！！");
                this.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

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