基础资料/Car_type.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Car.基础资料
{
    public partial class Car_type : Form
    {
        public Car_type()
        {
            InitializeComponent();
        }
        protected override CreateParams CreateParams//防止闪屏
        {
            get
            {
                var parms = base.CreateParams;
                parms.Style &= ~0x02000000;
                return parms;
            }
        }
        int i;
        int start;
        int size = 6;
        string str = "server=.;database=car;uid=sa;pwd=51Aspx";
        string str1 = "select * from car_type";
        private void Car_type_Load(object sender, EventArgs e)
        {
            this.BackColor = Color.FromArgb(81, 81, 81);
            DataTable dt = DBHelper.GetDataTable("select * from car_type");
            dataGridView1.DataSource = dt;
            i = dt.Rows.Count;//获取行数
            show(0, size);//调用show函数
            start = 0;
            labelcount.Text = string.Format("第{0}页/共{1}页 共{2}条数据", start + 1, i / size + 1, i);//显示数据
        }
        
        private void button1_Click(object sender, EventArgs e)
        {
            string typeid = text_typeid.Text;
            string typename = text_typename.Text;
            if (string.IsNullOrEmpty(typeid)||string.IsNullOrEmpty(typename))
            {
                MessageBox.Show("添加的信息填写不完整！","提示！",MessageBoxButtons.OK,MessageBoxIcon.Information);
            }
            else
            {
                string input = string.Format("insert into Car_type values('{0}','{1}')", typeid, typename);
                if (DBHelper.ExecuteNonQuery(input))
                {
                    MessageBox.Show("添加成功！");
                    DataTable dt = DBHelper.GetDataTable("select * from car_type");
                    dataGridView1.DataSource = dt;