C#-事件代码编写

控件事件生成

• 事件控件生成，在双击事件的时候，VS会自动生成初始化代码。并生成以你设定控件Name属性的名称，自动生成一个方法。

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

namespace AlarmExportToExcel
{
    public partial class login : Form
    {
        public login()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

        }
    }
}

控件内容获取

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

namespace AlarmExportToExcel
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void select_Click(object sender, EventArgs e)
        {
           
            //开始时间
            string startime = startDateTimePicker.Text.ToString().Trim();
            //结束时间
            string endtime = endDateTimePicker.Text.ToString().Trim();

            //获取ID

            string lineName = mianLineName.Text.ToString().Trim();

            //获取名称

            string deviceNme = deviceName.Text.ToString().Trim();

            //获取查询的数据名称
            string dbNamePara = dbName.Text.ToString().Trim();
            //DataSouce dataSouce = new DataSouce();
            if (dbName.Text.ToString().Trim().Equals("")) {

                MessageBox.Show("请选择数据库！", "错误");
                return;

            }
            if (week.Checked || day.Checked || allAlarm.Checked || throwAndPut.Checked)
            {
                //如果选择周，参数校验
                if (week.Checked) {
                    if (string.IsNullOrEmpty(lineName) || string.IsNullOrEmpty(deviceNme)) {

                        MessageBox.Show("名称或者ID不能为空！", "错误");
                        return;
                    }

                }

                DataTable result = DataSouce.executeQuery(dbNamePara, startime, endtime, week, day,allAlarm,throwAndPut,lineName, deviceNme);
                //dataGridView1.Dock = System.Windows.Forms.DockStyle.Top;
                if (result==null)
                {
                    MessageBox.Show("查询数据异常，请稍后查询！", "错误");

                }
                //dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
                dataGridView1.DataSource = result;
            }
            else {
                MessageBox.Show("请选择查询类型！","错误");
            }
           
        }

        private void connectDB_Click(object sender, EventArgs e)
        {
            string DBName = dbName.Text.ToString().Trim();
            try
            {
                DataSouce conn = new DataSouce();
                result.Text = conn.testConnecting(DBName);
            }
            catch (Exception)
            {
                result.Text = "连接失败";
                throw;
            }
            

        }

        private void week_CheckedChanged(object sender, EventArgs e)
        {
            mianLineName.Enabled = true;
            deviceName.Enabled = true;
            mianLineName.Focus();
        }

        private void day_CheckedChanged(object sender, EventArgs e)
        {
            mianLineName.Enabled = false; //不允许输入
            deviceName.Enabled = false;  //允许输入
        }

        private void toExcel_Click(object sender, EventArgs e)
        {
            DataSouce souce = new DataSouce();

            souce.DataToExcel(dataGridView1);



        }

        private void allAlarm_CheckedChanged(object sender, EventArgs e)
        {
            mianLineName.Enabled = false;
            deviceName.Enabled = false;

        }

        private void throwAndPut_CheckedChanged(object sender, EventArgs e)
        {
            mianLineName.Enabled = false;
            deviceName.Enabled = false;
        }
    }
}

标签：string,编写,C#,Win,void,System,EventArgs,Text,using
来源： https://www.cnblogs.com/caicai920/p/16283684.html