前天寫的一個小程序，主要功能有用文本方式打開一個文件、改變文字的字體和大小、帶有歷史的菜單。程序寫的很亂，功能也不是太完整，主要在歷史菜單上。只要控件有一個RichTextBox以及MenuStrip。
[csharp]
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 CSharp實例練習_帶歷史的菜單
{
public partial class FrmMain : Form
{
public FrmMain()
{
InitializeComponent();
//開始時歷史菜單不可見
文件1ToolStripMenuItem.Visible=false;
文件2ToolStripMenuItem.Visible = false;
文件3ToolStripMenuItem.Visible = false;
文件4ToolStripMenuItem.Visible = false;
文件5ToolStripMenuItem.Visible = false;
文件6ToolStripMenuItem.Visible = false;
文件7ToolStripMenuItem.Visible = false;
文件8ToolStripMenuItem.Visible = false;
文件9ToolStripMenuItem.Visible = false;
文件10ToolStripMenuItem.Visible = false;
}
//定義變量：程序所在路徑，菜單歷史，是否存在配置文件
string path = System.IO.Directory.GetCurrentDirectory ( );
string[] history = new string[10];
//菜單中打開文件函數
private void 打開ToolStripMenuItem_Click(object sender, EventArgs e)
{
string filename="";
OpenFileDialog filedia = new OpenFileDialog();
if (filedia.ShowDialog() == DialogResult.OK)
{
filename= filedia.FileName;
this.rtboxResult.Text += filename;
this.rtboxResult.LoadFile(filename, RichTextBoxStreamType.PlainText);
string ShortFileName = filename.Substring(filename.LastIndexOf("\\") + 1);
this.Text = ShortFileName;
//歷史文件存為backup.ini
string newpath = path + @"\backup.ini";
//打開一個文件文件，並將其地址存為歷史，在菜單中也要儲存
CheckMenu(newpath);
StreamWriter sr = new StreamWriter(newpath,true,Encoding.Default);
sr.WriteLine(filename);
sr.Close();
//加載歷史
load();
}
}
//退出
private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Close();
}
//設置字體，父窗口與子窗口之間的通訊，試了好久才出來。
private void 字體ToolStripMenuItem_Click(object sender, EventArgs e)
{
FrmFont font = new FrmFont(this);
font.Show();
}
//復制
private void 復制ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.rtboxResult.Copy();
}
//粘貼
private void 粘貼ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.rtboxResult.Paste();
}
//剪切
private void 剪切ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.rtboxResult.Cut();
}
//關閉當前文件
private void 關閉ToolStripMenuItem_Click(object sender, EventArgs e)
{
rtboxResult.Clear();
}
//幫助按鈕
private void 幫助ToolStripMenuItem_Click(object sender, EventArgs e)
{
FrmHelp frm2 = new FrmHelp();
frm2.ShowDialog();
}
private void FrmMain_Load(object sender, EventArgs e)
{
//如果配置文件存在，讀取配置文件中的內容
load();
}
//點擊歷史菜單打開文件
private void 文件ToolStripMenuItem_Click(object sender, EventArgs e)
{
string temp = ((ToolStripMenuItem)sender).Text;
this.rtboxResult.LoadFile(temp, RichTextBoxStreamType.PlainText);
string ShortFileName = temp.Substring(temp.LastIndexOf("\\") + 1);
this.Text = ShortFileName;
string newpath = path + @"\backup.ini";
CheckMenu(temp);
StreamWriter sr = new StreamWriter(newpath, true, Encoding.Default);
sr.WriteLine(temp);
sr.Close();
}
//確定歷史菜單是否顯現
private void CheckMenu(string path)
{
if (文件1ToolStripMenuItem.Text == "")
{
文件1ToolStripMenuItem.Text = path;
文件1ToolStripMenuItem.Visible = true;
}
else if (文件2ToolStripMenuItem.Text == "")
{
文件2ToolStripMenuItem.Text = path;
文件2ToolStripMenuItem.Visible = true;
}
else if (文件3ToolStripMenuItem.Text == "")
{
文件3ToolStripMenuItem.Text = path;
文件3ToolStripMenuItem.Visible = true;
}
else if (文件4ToolStripMenuItem.Text == "")
{
文件4ToolStripMenuItem.Text = path;
文件4ToolStripMenuItem.Visible = true;
}
else if (文件5ToolStripMenuItem.Text == "")
{
文件5ToolStripMenuItem.Text = path;
文件5ToolStripMenuItem.Visible = true;
}
else if (文件6ToolStripMenuItem.Text == "")
{
文件6ToolStripMenuItem.Text = path;
文件6ToolStripMenuItem.Visible = true;
}
else if (文件7ToolStripMenuItem.Text == "")
{
文件7ToolStripMenuItem.Text = path;
文件7ToolStripMenuItem.Visible = true;
}
else if (文件8ToolStripMenuItem.Text == "")
{
文件8ToolStripMenuItem.Text = path;
文件8ToolStripMenuItem.Visible = true;
}
else if (文件9ToolStripMenuItem.Text == "")
{
文件9ToolStripMenuItem.Text = path;
文件9ToolStripMenuItem.Visible = true;
}
else if (文件10ToolStripMenuItem.Text == "")
{
文件10ToolStripMenuItem.Text = path;
文件10ToolStripMenuItem.Visible = true;
}
else
{
文件10ToolStripMenuItem.Text = path;
}
}
//加載歷史菜單函數
private void load()
{
if (File.Exists(path + @"\backup.ini"))
{
string temp;
string newpath = path + @"\backup.ini";
StreamReader sr = new StreamReader(newpath, Encoding.Default, false);
int i = 0;
while ((temp = sr.ReadLine()) != null)
{
history[i] = temp;
#region
switch (i + 1)
{
case 1:
文件1ToolStripMenuItem.Text = temp;
文件1ToolStripMenuItem.Visible = true;
break;
case 2:
文件2ToolStripMenuItem.Text = history[i];
文件2ToolStripMenuItem.Visible = true;
break;
case 3:
文件3ToolStripMenuItem.Text = history[i];
文件3ToolStripMenuItem.Visible = true;
break;
case 4:
文件4ToolStripMenuItem.Text = history[i];
文件4ToolStripMenuItem.Visible = true;
break;
case 5:
文件5ToolStripMenuItem.Text = history[i];
文件5ToolStripMenuItem.Visible = true;
break;
case 6:
文件6ToolStripMenuItem.Text = history[i];
文件6ToolStripMenuItem.Visible = true;
break;
case 7:
文件7ToolStripMenuItem.Text = history[i];
文件7ToolStripMenuItem.Visible = true;
break;
case 8:
文件8ToolStripMenuItem.Text = history[i];
文件8ToolStripMenuItem.Visible = true;
break;
case 9:
文件9ToolStripMenuItem.Text = history[i];
文件9ToolStripMenuItem.Visible = true;
break;
case 10:
文件10ToolStripMenuItem.Text = history[i];
文件10ToolStripMenuItem.Visible = true;
break;
}
#endregion
i++;
}
sr.Close();
}
}
}
}
