csharp隐藏的控件能显示吗（电脑绝技教你22天学精Csharp之第十五天winform应用程序补充7）
csharp隐藏的控件能显示吗（电脑绝技教你22天学精Csharp之第十五天winform应用程序补充7）using System.IO;using System.Drawing;using System.Collections.Generic;using System.ComponentModel;using System.Data;
14、记事儿本应用程序
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.Threading.Tasks;
using System.Windows.Forms;
namespace _14_记事儿本应用程序
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender EventArgs e)
{
//加载程序的时候 隐藏panel
panel1.Visible = false;
//取消文本框的自动换行功能
textBox1.WordWrap = false;
}
/// <summary>
/// 点击按钮的时候 隐藏panel
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender EventArgs e)
{
panel1.Visible = false;
}
private void 显示ToolStripMenuItem_Click(object sender EventArgs e)
{
panel1.Visible = true;
}
private void 影藏ToolStripMenuItem_Click(object sender EventArgs e)
{
panel1.Visible = false;
}
List<string> list = new List<string>();
/// <summary>
/// 打开对话框
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void 打开ToolStripMenuItem_Click(object sender EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "请选择要打开的文本文件";
ofd.InitialDirectory = @"C:\Users\SpringRain\Desktop";
ofd.Multiselect = true;
ofd.Filter = "文本文件|*.txt|所有文件|*.*";
ofd.ShowDialog();
//获得用户选中的文件的路径
string path = ofd.FileName;
//将文件的全路径存储到泛型集合中
list.Add(path);
//获得了用户打开文件的文件名
string fileName = Path.GetFileName(path);
//将文件名放到ListBox中
listBox1.Items.Add(fileName);
if (path == "")
{
return;
}
using (FileStream fsRead = new FileStream(path FileMode.OpenOrCreate FileAccess.Read))
{
byte[] buffer = new byte[1024 * 1024 * 5];
int r = fsRead.Read(buffer 0 buffer.Length);
textBox1.Text = Encoding.Default.GetString(buffer 0 r);
}
}
/// <summary>
/// 保存对话框
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void 保存ToolStripMenuItem_Click(object sender EventArgs e)
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.InitialDirectory = @"C:\Users\SpringRain\Desktop";
sfd.Title = "请选择要保存的文件路径";
sfd.Filter = "文本文件|*.txt|所有文件|*.*";
sfd.ShowDialog();
//获得用户要保存的文件的路径
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");
}
private void 自动换行ToolStripMenuItem_Click(object sender EventArgs e)
{
if (自动换行ToolStripMenuItem.Text == "☆自动换行")
{
textBox1.WordWrap = true;
自动换行ToolStripMenuItem.Text = "★取消自动换行";
}
else if (自动换行ToolStripMenuItem.Text == "★取消自动换行")
{
textBox1.WordWrap = false;
自动换行ToolStripMenuItem.Text = "☆自动换行";
}
}
private void 字体ToolStripMenuItem_Click(object sender EventArgs e)
{
FontDialog fd = new FontDialog();
fd.ShowDialog();
textBox1.Font = fd.Font;
}
private void 颜色ToolStripMenuItem_Click(object sender EventArgs e)
{
ColorDialog cd = new ColorDialog();
cd.ShowDialog();
textBox1.ForeColor = cd.Color;
}
/// <summary>
/// 双击打开对应的文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void listBox1_DoubleClick(object sender EventArgs e)
{
//要获得双击的文件所对应的全路径
string path = list[listBox1.SelectedIndex];
using (FileStream fsRead = new FileStream(path FileMode.OpenOrCreate FileAccess.Read))
{
byte[] buffer = new byte[1024 * 1024 * 5];
int r = fsRead.Read(buffer 0 buffer.Length);
textBox1.Text = Encoding.Default.GetString(buffer 0 r);
}
}
}
}
15进程
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace _15进程
{
class Program
{
static void Main(string[] args)
{
//获得当前程序中所有正在运行的进程
//Process[] pros = Process.GetProcesses();
//foreach (var item in pros)
//{
// //不试的不是爷们
// //item.Kill();
// Console.WriteLine(item);
//}
//通过进程打开一些应用程序
//Process.Start("calc");
//Process.Start("mspaint");
//Process.Start("notepad");
//Process.Start("iexplore" "http://www.baidu.com");
//通过一个进程打开指定的文件
ProcessStartInfo psi = new ProcessStartInfo(@"C:\Users\SpringRain\Desktop\1.exe");
//第一：创建进程对象
Process p = new Process();
p.StartInfo = psi;
p.Start();
// p.star
Console.ReadKey();
}
}
}
16、线程
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace _16_线程
{
class Program
{
static void Main(string[] args)
{
Thread.Sleep(3000);
Console.WriteLine("Hello World");
Console.ReadKey();
}
}
}
17、线程
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace _17_线程
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Thread th;
private void button1_Click(object sender EventArgs e)
{
//创建一个线程去执行这个方法
th = new Thread(Test);
//标记这个线程准备就绪了，可以随时被执行。具体什么时候执行这个线程，
//由cpu决定
//将线程设置为后台线程
th.IsBackground = true;
th.Start();
th.Abort();
th.Start();
}
private void Test()
{
for (int i = 0; i < 10000; i )
{
//Console.WriteLine(i);
textBox1.Text = i.ToString();
}
}
private void Form1_Load(object sender EventArgs e)
{
//取消跨线程的访问
Control.CheckForIllegalCrossThreadCalls = false;
}
private void Form1_FormClosing(object sender FormClosingEventArgs e)
{
//当你点击关闭窗体的时候，判断新线程是否为null
if (th != null)
{
//结束这个线程
th.Abort();
}
}
}
}
