winfrom 对话框

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 对话框控件
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            
        }
        int b = 0;
        public Form1(int a)
        {
            InitializeComponent();
            b = a;
        }

        private void 字体颜色ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            DialogResult dr = colorDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                textBox1.ForeColor = colorDialog1.Color;
            }
        }

        private void 选择文件夹ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            folderBrowserDialog1.ShowDialog();
            textBox1.Text = folderBrowserDialog1.SelectedPath;
        }

        private void 字体设置ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            fontDialog1.ShowColor = true;
            fontDialog1.ShowDialog();
            textBox1.Font = fontDialog1.Font;
            textBox1.ForeColor = fontDialog1.Color;
        }

        private void 打开OToolStripMenuItem_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter = "文本文件|*.txt|全部文件|*.*";
            DialogResult dr = openFileDialog1.ShowDialog();

            if (dr == DialogResult.OK)
            {

                label1.Text = openFileDialog1.FileName;

                StreamReader sr = new StreamReader(openFileDialog1.FileName);
                textBox1.Text = sr.ReadToEnd();
                //richTextBox1.Text = sr.ReadToEnd();
                sr.Close();

            }


        }

        string path = "";

        private void 保存SToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (path == "")
            {
                saveFileDialog1.FileName = "新建文本文件.txt";
                saveFileDialog1.ShowDialog();
                path = saveFileDialog1.FileName;
            }
            StreamWriter sw = new StreamWriter(path);
            sw.Write(textBox1.Text);
            sw.Close();


        }

        private void label1_Click(object sender, EventArgs e)
        {

        }
    }
}

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 Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
            for (int i = 0; i < 3; i++)
            {
                TextBox t = new TextBox();

                flowLayoutPanel1.Controls.Add(t);
            }

        }

        private void 打印设置ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            pageSetupDialog1.Document = printDocument1;
            pageSetupDialog1.ShowDialog();
        }

        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            Font f = new Font("宋体",14);
            Brush b = new SolidBrush(Color.Black);
            PointF p = new PointF(10,10);

            e.Graphics.DrawString(textBox1.Text, f, b, p);
        }

        private void 打印预览VToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //printPreviewControl1.Document = printDocument1;
            printPreviewDialog1.Document = printDocument1;
            printPreviewDialog1.ShowDialog();
        }

        private void 打印PToolStripMenuItem_Click(object sender, EventArgs e)
        {
            printDialog1.Document = printDocument1;
            printDialog1.ShowDialog();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show(flowLayoutPanel1.Controls.Count.ToString());
        }
    }
}