记事本制作

记事本

对话框控件：  

　　不显示需要在双击菜单栏设置显示   

　　　　ColorDialog :颜色对话框  

　　　　FontDialog:字体对话框

　　　　FloderBrowserDialog:文件夹选择对话框  

　　　　OpenFileDialog:打开对话框  

　　　　 SabeFileDialog:保存对话框

文件流

　　using System.IO;

打印控件：  

　　PageSetupDialog:更改有页面相关的设置  

　　PrintDialog：选择打印机并选择其他打印方式

　　PrintDocument：想打印机输出打印对象

　　PrintPreviewControl：只表示打印预览中显示正在预览的文档部分，不包含任何对话框和按钮  

　　PrintPreviewDialog：向用户显示关联文档打印时的样子

Form1

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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            textBox1.ScrollBars = ScrollBars.Vertical;
        }

        private void 字体颜色ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            DialogResult dr = colorDialog1.ShowDialog();//点击字体颜色按钮显示颜色对话框并返回给DialogResult dr

            if (dr == DialogResult.OK)//如果用户字体颜色对话框的确定
            {
                textBox1.ForeColor = colorDialog1.Color;//更改textBox1的字体颜色改变全部颜色不能改一部分
                textBox1.BackColor = colorDialog1.Color;//更改背景颜色
            }


        }

        private void 文件夹选择ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //现在底部弄一个 StatusStrip然后StatusLabel清空掉Text
            DialogResult dr = folderBrowserDialog1.ShowDialog();
            //看不见任何一个文件，只能看见文件夹
            if (dr == DialogResult.OK)
            {
                la1.Text = folderBrowserDialog1.SelectedPath;//在底部的StatusStrip中StatusLabel显示出选择的文件的绝对路径
            }

        }

        private void 字体选择ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            DialogResult dr = fontDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                textBox1.Font = fontDialog1.Font;
                textBox1.ForeColor = fontDialog1.Color;//字体对话框中没有颜色需要先右键点击fontDialog1选择属性中的ShowColor点true需要不能用需要设置因为他是字体对话框里的颜色
            }


        }

        private void 打开OToolStripMenuItem_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter = "文本文件|*.txt";//Filter查看文件的格式只能看到txt的文件格式也只能选择txt文件
            DialogResult dr = openFileDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                string path = openFileDialog1.FileName;//获取绝对路径
                StreamReader sr = new StreamReader(path, Encoding.Default);//这就话之前需要引用流using System.IO。Encoding.Default（获取当前操做系统默认的编码（系统用什么编码你用什么编码） ）读取汉字
                //创建流吧获取的绝对路径给sr。选定的流就会针对于你选择的路径
                textBox1.Text = sr.ReadToEnd();//读取sr的路径从头读到尾然后将读到的内容返回到text.Box1中显示出来。只能读取英文读取汉字在 StreamReader sr = new StreamReader(path, Encoding.Default)
            }
        }

        bool hasave = false;
        string savepath = "";
        private void 保存SToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (savepath == "")
            {

                saveFileDialog1.Filter = "文本文件|*.txt";
                saveFileDialog1.FileName = "新建文本文档";//没保存默认标题
                DialogResult dr = saveFileDialog1.ShowDialog();
                if (dr == DialogResult.OK)
                {
                    savepath = saveFileDialog1.FileName;//绝对路径
                    la1.Text = savepath;

                    string[] sss = savepath.Split('\');
                    this.Text = sss[sss.Length - 1] + " - 超级记事本";//截取路径最后

                    StreamWriter sw = new StreamWriter(savepath);//StreamWriter输出  对他进行保存
                    sw.Write(textBox1.Text);//将text.Box1写道流里
                    sw.Close();//关掉流
                    hasave = true;
                }
            }
            else//没有记录直接写
            {
                StreamWriter sw = new StreamWriter(savepath);
                sw.Write(textBox1.Text);
                sw.Close();
                hasave = true;//保存完成
            }

        }

        private void 新建NToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (hasave)
            {
                textBox1.Text = "";
                savepath = "";
                this.Text = "超级记事本";
            }
            else
            {
                DialogResult dr = MessageBox.Show("当前文件未保存，新建将~~~~", "警告！", MessageBoxButtons.OKCancel);
                if (dr == DialogResult.OK)
                {
                    textBox1.Text = "";
                    savepath = "";
                    this.Text = "超级记事本";

                }

            }
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            la2.Text = textBox1.Text.Length.ToString();
            hasave = false;//保存好了后更改内容提示是否保存
        }

        private void 自动换行ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //不自动换行显示滚动条
            if (textBox1.WordWrap)
            {
                textBox1.WordWrap = false;
                自动换行ToolStripMenuItem.Checked = false;
                textBox1.ScrollBars = ScrollBars.Both;
            }
            else
            {
                textBox1.WordWrap = true;
                自动换行ToolStripMenuItem.Checked = true;
                textBox1.ScrollBars = ScrollBars.Vertical;
            }
        }

        private void 页面设置ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            pageSetupDialog1.Document = printDocument1;
            pageSetupDialog1.ShowDialog();
        }
        //下面必用打印对象
        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            Brush b = new SolidBrush(textBox1.ForeColor);//实线画刷（需要颜色对象来自于textBox1.ForeColor颜色）
            PointF p = new PointF(30,10);//距离x轴30y轴10

            e.Graphics.DrawString(textBox1.Text, textBox1.Font, b, p);//绘制一些字符串（要绘制的东西，绘制成什么样，画刷，位置）
        }

        private void 打印预览VToolStripMenuItem_Click(object sender, EventArgs e)
        {
          //PrintPreviewControl1.Document = printDocument1;
            printPreviewDialog1.Document = printDocument1;//独立的
            printPreviewDialog1.ShowDialog();
        }

        private void 打印PToolStripMenuItem_Click(object sender, EventArgs e)
        {
            printDialog1.Document = printDocument1;
            DialogResult dr = printDialog1.ShowDialog();//接受一下返回值

            if (dr == DialogResult.OK)
            {
                printDocument1.Print();//执行打印
            
            }

        }

        private void 撤消UToolStripMenuItem_Click(object sender, EventArgs e)
        {
            textBox1.Undo();//撤销
        }

        private void 剪切TToolStripMenuItem_Click(object sender, EventArgs e)
        {
            textBox1.Cut();//剪贴
        }

        private void 复制CToolStripMenuItem_Click(object sender, EventArgs e)
        {
            textBox1.Copy();//复制
        }

        private void 粘贴PToolStripMenuItem_Click(object sender, EventArgs e)
        {
            textBox1.Paste();//粘贴
        }

        private void 全选AToolStripMenuItem_Click(object sender, EventArgs e)
        {
            textBox1.SelectAll();//全选
        }

        private void 查找ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Form2 f2 = new Form2(this);//this传给Form2
            f2.Owner = this;//拥有者form1拥有form2
            f2.Show();
        }
    }
}

Form2查找的窗口

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

namespace WindowsFormsApplication1
{
    public partial class Form2 : Form
    {
        Form1 F1;//提升作用域
        public Form2(Form1 f1)
        {
            InitializeComponent();
            F1 = f1;
            //将文本框的privat改成public
        }

        int a = -1;//加载一次使用
        private void button1_Click(object sender, EventArgs e)
        {
            string s1 = textBox1.Text;//获取要查找的数据
            string s2 = F1.textBox1.Text;//要查的地方

            a = s2.IndexOf(s1, (a + s1.Length));//多少a开始往后找

            if (a < 0)
            {
                MessageBox.Show("找不到"" + s1 + ""！！");//   ""转义字符
            }
            else
            {
                F1.textBox1.Select(a, s1.Length);//设置选定的内容（从哪个索引开始选，选中多长）  
                F1.textBox1.Focus();//获得焦点
            }


        }
    }
}