searcher.cs

改程序实现了记事本的一些基本操作

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

namespace jishiben
{
    public delegate void searchEventHandler(object sender, SearchEventArgs e);
    
    
    public partial class searcher : Form
    {
        public bool cBcheched
        {
            get
            {
                return this.cBqufen.Checked;
            }
        }
        public bool rBcheched
        {
            get
            {
                if (rBdown.Checked)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
        }
        private SearchEventArgs sea = new SearchEventArgs();
        public event searchEventHandler Search;

        private void OnSearch()
        {
            searchEventHandler handler = Search;
            if (handler != null)
            {

                if (handler.Target is System.ComponentModel.ISynchronizeInvoke)
                {
                    System.ComponentModel.ISynchronizeInvoke aSynch = handler.Target as System.ComponentModel.ISynchronizeInvoke;
                    if (aSynch.InvokeRequired)
                    {
                        object[] args = new object[] { this, sea };
                        aSynch.Invoke(handler, args);
                    }
                    else
                    {
                        handler(this, sea);
                    }
                }
                else
                {

                    handler(this, sea);
                }
            }
            else
            {
                MessageBox.Show("事件为空!");
            }

        }

        public searcher()
        {
            InitializeComponent();
        }

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

        private void btn_searchnext_Click(object sender, EventArgs e)
        {
            if (tBnext.Text == "")
            {
                MessageBox.Show("请输入查找内容！");
            }
            else
            {
                sea.Searchstring = tBnext.Text;
                OnSearch();
            }
        }

        private void searcher_HelpButtonClicked(object sender, CancelEventArgs e)
        {
            MessageBox.Show("查找帮助");
        }
    }
}