利用c#利用richtexbox控件实现一个类似于Windows写字板的程序,实现文本编辑器剪贴板功能,存取文件功能,打印功能,打印预览功能修改字体功能
时间: 2024-03-21 19:39:35 浏览: 11
好的,下面是一个简单的示例代码,演示如何使用 RichTextBox 控件实现一个文本编辑器,并实现剪贴板功能、存取文件功能、打印功能、打印预览功能和修改字体功能:
```csharp
using System;
using System.Windows.Forms;
namespace TextEditor
{
public partial class MainForm : Form
{
public MainForm()
{
InitializeComponent();
}
// 新建文件
private void NewToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Clear();
}
// 打开文件
private void OpenToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
richTextBox1.LoadFile(openFileDialog.FileName, RichTextBoxStreamType.PlainText);
}
}
// 保存文件
private void SaveToolStripMenuItem_Click(object sender, EventArgs e)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
richTextBox1.SaveFile(saveFileDialog.FileName, RichTextBoxStreamType.PlainText);
}
}
// 剪切
private void CutToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Cut();
}
// 复制
private void CopyToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Copy();
}
// 粘贴
private void PasteToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Paste();
}
// 打印
private void PrintToolStripMenuItem_Click(object sender, EventArgs e)
{
PrintDialog printDialog = new PrintDialog();
PrintDocument printDocument = new PrintDocument();
printDialog.Document = printDocument;
if (printDialog.ShowDialog() == DialogResult.OK)
{
printDocument.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(PrintDocument_PrintPage);
printDocument.Print();
}
}
// 打印预览
private void PrintPreviewToolStripMenuItem_Click(object sender, EventArgs e)
{
PrintPreviewDialog printPreviewDialog = new PrintPreviewDialog();
PrintDocument printDocument = new PrintDocument();
printPreviewDialog.Document = printDocument;
printDocument.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(PrintDocument_PrintPage);
printPreviewDialog.ShowDialog();
}
// 修改字体
private void FontToolStripMenuItem_Click(object sender, EventArgs e)
{
FontDialog fontDialog = new FontDialog();
if (fontDialog.ShowDialog() == DialogResult.OK)
{
richTextBox1.SelectionFont = fontDialog.Font;
}
}
// 打印文本
private void PrintDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
e.Graphics.DrawString(richTextBox1.Text, richTextBox1.Font, System.Drawing.Brushes.Black, 0, 0);
}
}
}
```
在窗体中添加一个 RichTextBox 控件,然后添加菜单项和按钮,并将它们与相应的事件处理程序关联即可。注意,在打印和打印预览功能中,需要将 RichTextBox 的内容绘制到纸张上,这里使用了 Graphics 对象的 DrawString 方法来实现。