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窗体的主要控件：
主要代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Txt
{
public partial class Form1 : Form
{
public string fname = "";
public bool issave = false;
public bool tchange = false;
public Form1()
{
InitializeComponent();
}
private void save()
{
if (fname == "")
{
saveFileDialog1.Title = "保存";
this.saveFileDialog1.Filter = "文本文件|*.txt;";
if (this.saveFileDialog1.ShowDialog() == DialogResult.OK)
{
if (saveFileDialog1.FileName != "")
{
richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText);
issave = true;
}
}
}
else
{
richTextBox1.SaveFile(fname, RichTextBoxStreamType.PlainText);
issave = true;
}
}
private void open()
{
openFileDialog1.Title = "打开";
openFileDialog1.FileName = "";
openFileDialog1.Filter = "文本文件|*.txt;";
openFileDialog1.FilterIndex = 1;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
fname = openFileDialog1.FileName;
richTextBox1.LoadFile(fname, RichTextBoxStreamType.PlainText);
issave = false;
tchange = false;
}
}
private void osave()
{
saveFileDialog1.Title = "另存为";
this.saveFileDialog1.Filter = "文本文件|*.txt;";
if (this.saveFileDialog1.ShowDialog() == DialogResult.OK)
{
if (saveFileDialog1.FileName != "")
{
richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText);
issave = true;
}
}
}
private void isbsave()
{
if (issave == false && tchange == true)
{
if (MessageBox.Show("是否保存数据", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
save();
}
}
}
private void 保存ToolStripMenuItem_Click(object sender, EventArgs e)
{
save();
}
private void 另存为ToolStripMenuItem_Click(object sender, EventArgs e)
{
osave();
}
private void 打开ToolStripMenuItem_Click(object sender, EventArgs e)
{
open();
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
isbsave();
}
private void 新建ToolStripMenuItem_Click(object sender, EventArgs e)
{
isbsave();
richTextBox1.ResetText();
issave = false;
tchange = false;
fname = "";
}
private void richTextBox1_TextChanged(object sender, EventArgs e)
{
tchange = true;
issave = false;
}
private int GetStringLen(string s)
{
if (!string.IsNullOrEmpty(s))
{
int len = s.Length;
for (int i = 0; i < s.Length; i++)
{
if (s[i] > 255)
len++;
}
return len;
}
return 0;
}
private void scriptstatus()
{
int row = richTextBox1.GetLineFromCharIndex(richTextBox1.SelectionStart) + 1;
int start = richTextBox1.GetFirstCharIndexOfCurrentLine();
string s = richTextBox1.Text.Substring(start, richTextBox1.SelectionStart - start);
int col = GetStringLen(s) + 1;
toolStripStatusLabel1.Text = "第 " + row + " 行, 第 " + col + " 列";
}
private void richTextBox1_SelectionChanged(object sender, EventArgs e)
{
scriptstatus();
}
private void statusBar()
{
if (状态栏ToolStripMenuItem.Checked = !状态栏ToolStripMenuItem.Checked)
{
statusStrip1.Visible = true;
scriptstatus();
}
else
{
statusStrip1.Visible = false;
}
}
private void 状态栏ToolStripMenuItem_Click(object sender, EventArgs e)
{
statusBar();
}
private void textWordWrap()
{
if (自动换行ToolStripMenuItem.Checked = !自动换行ToolStripMenuItem.Checked)
{
richTextBox1.WordWrap = true;
}
else
{
richTextBox1.WordWrap = false;
}
}
private void 自动换行ToolStripMenuItem_Click(object sender, EventArgs e)
{
textWordWrap();
}
private void richTextBox1_KeyDown(object sender, KeyEventArgs e)
{
if (e.Control && e.KeyCode == Keys.S)
{
save();
}
if (e.Control && e.KeyCode == Keys.O)
{
open();
}
if (e.Control && e.KeyCode == Keys.N)
{
isbsave();
richTextBox1.ResetText();
issave = false;
tchange = false;
fname = "";
}
}
private void 撤销ToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Undo();
}
private void 剪切ToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Cut();
}
private void 复制ToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Copy();
}
private void 粘贴ToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Paste();
}
private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.richTextBox1.SelectedText = "";
}
private void 全选ToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.SelectAll();
}
private void 日期ToolStripMenuItem_Click(object sender, EventArgs e)
{
DateTime dt;
dt = DateTime.Now;
richTextBox1.AppendText(dt.Year.ToString() + "年 " + dt.Month.ToString() + "月 " + dt.Day.ToString() + "日" + dt.Hour.ToString() + "时 " + dt.Minute.ToString() + "分");
}
private void 字体ToolStripMenuItem_Click(object sender, EventArgs e)
{
fontDialog1.ShowDialog();
richTextBox1.SelectionFont = fontDialog1.Font;
}
private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
{
Application.Exit();
}
}
}
GitHub源码下载：https://github.com/kiritobin/winTxt
原文链接：https://www.idaobin.com/archives/995.html
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