复制：
1 private void CopytoolStripMenuItem_Click(object sender, EventArgs e)
2 {//复制
3 try
4 {
5 this.Cursor = Cursors.WaitCursor;
6 string strTemp = richTextBoxSendInfo.SelectedText;
7 //获取RichTextBox中选中的文字
8 if (strTemp.Equals("")) //判断是否为空
9 return;
10 Clipboard.Clear();//清除原有剪切板中内容
11 Clipboard.SetText(strTemp);//将文字添加到剪切板中，还添加Object类型数据
12 this.Cursor = Cursors.Default;
13 }
14 catch (System.Exception ex)
15 {
16 this.Cursor = Cursors.Default;
17 CommonFunc.DisplayException(ex);
18 }
19 }
剪切：
20 private void CuttoolStripMenuItem_Click(object sender, EventArgs e)
21 {//剪切
22 try
23 {
24 this.Cursor = Cursors.WaitCursor;
25 string strTemp = richTextBoxSendInfo.SelectedText;
26 if (strTemp.Equals(""))
27 return;
28 Clipboard.Clear();
29 richTextBoxSendInfo.Cut();
30 this.Cursor = Cursors.Default;
31 }
32 catch (System.Exception ex)
33 {
34 this.Cursor = Cursors.Default;
35 CommonFunc.DisplayException(ex);
36 }
37
38 }
撤销：
39 private void ReDotoolStripMenuItem_Click(object sender, EventArgs e)
40 {//撤销
41 try
42 {
43 this.Cursor = Cursors.WaitCursor;
44 richTextBoxSendInfo.Undo();
45 this.Cursor = Cursors.Default;
46 }
47 catch (System.Exception ex)
48 {
49 this.Cursor = Cursors.Default;
50 CommonFunc.DisplayException(ex);
51 }
52
53 }
