6.30 winform 对话框控件

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

namespace _6._30_上午_对话框控件
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
        //设置颜色
        private void toolStripMenuItem2_Click(object sender, EventArgs e)
        {
            DialogResult dr = colorDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                textBox1.ForeColor = colorDialog1.Color;
            }
            
        }
        //选择文件夹
        private void 选择文件夹ToolStripMenuItem_Click(object sender, EventArgs e)
        {
          folderBrowserDialog1.ShowDialog();//选择文件夹
            textBox1.Text=folderBrowserDialog1.SelectedPath;//显示路径
        }

        private void 设置字体ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            fontDialog1.ShowColor = true;//可选择颜色
            fontDialog1.ShowDialog();//显示设置字体框
            textBox1.Font = fontDialog1.Font;//可变换字体
            textBox1.ForeColor = fontDialog1.Color;
        }

        private void fontDialog1_Apply(object sender, EventArgs e)
        {

        }
        //打开文件，并规定允许打开的类型
        private void 打开文件ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter = "文本文件|*.txt|*.*";
            DialogResult dr = openFileDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                label1.Text = openFileDialog1.FileName;
                StreamReader sr = new StreamReader(openFileDialog1.FileName);//引用生成流文件
                textBox1.Text = sr.ReadToEnd();//打开文件打开后是乱码
                sr.Close(); 
                
    
            }
        }

        //保存，并分情况判断
        string path = "";

        private void 保存SToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (path == "")//判断是否保存过，未保存选择路径保存
            {
                saveFileDialog1.FileName = "新建文本文件.txt";
                saveFileDialog1.ShowDialog();
                label1.Text = saveFileDialog1.FileName;
            }
            StreamWriter sw = new StreamWriter(path);//已经保存还是保存在原路径
            sw.Write(textBox1.Text);
            sw.Close();

        }
    }
}