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 对话框控件{    public partial class Form2 : Form    {        public Form2()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            SaveFileDialog sfd = new SaveFileDialog();            sfd.Title = "请选择要保存的路径";            sfd.InitialDirectory = @"C:\Users\Administrator\Desktop";            sfd.Filter = "文本文件|*.txt|所有文件|*.*";            sfd.ShowDialog();            //获得保存文件的路径            string path = sfd.FileName;            if(path == "")            {                return;            }            using (FileStream fsWrite = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))            {                byte[] buffer = Encoding.Default.GetBytes(textBox1.Text);                fsWrite.Write(buffer,0,buffer.Length);            }            MessageBox.Show("保存成功");        }    }}

 

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 对话框控件{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            //点击弹出对话框            OpenFileDialog ofd = new OpenFileDialog();                        //设置对话框的标题            ofd.Title = "请选择要打开的文本文件";            //设置对话框可以多选            ofd.Multiselect = true;            //设置对话框的初始目录            ofd.InitialDirectory = @"C:\Users\Administrator\Desktop";            //设置打开文件的类型            ofd.Filter = "文本文件|*.txt |图片文件|*.jpg |所有文件|*.*";            //展示对话框            ofd.ShowDialog();            //获得在打开对话框中选中文件的路径            string path = ofd.FileName;            if (path == "")            {                return;            }            using(FileStream fsRead = new FileStream(path,FileMode.OpenOrCreate,FileAccess.Read))            {                byte[] buffer = new byte[1024*1024*5];                //实际读取到的字节数                int r = fsRead.Read(buffer,0,buffer.Length);                textBox1.Text = Encoding.Default.GetString(buffer,0,r);            }        }    }}

 

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 对话框控件{    public partial class Form3 : Form    {        public Form3()        {            InitializeComponent();        }        /// 
        /// 字体对话框        /// 
        ///         ///         private void button1_Click(object sender, EventArgs e)        {                        FontDialog fd = new FontDialog();            fd.ShowDialog();            textBox1.Font = fd.Font;        }        /// 
        /// 颜色对话框        /// 
        ///         ///         private void button2_Click(object sender, EventArgs e)        {            ColorDialog cd = new ColorDialog();            cd.ShowDialog();            textBox1.ForeColor = cd.Color;        }    }}