RichTextBox中的右键菜单模版（C#）附源码

最新推荐文章于 2024-05-15 18:07:29 发布

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本文介绍了一个简单的右键菜单控制逻辑，通过判断文本编辑框的状态来启用或禁用复制、剪切等常见操作。该方法适用于需要自定义右键菜单功能的应用程序。

给这个模板，完全是给懒人用的哈~我这里主要给出方法：

（使用的时候把控件的Name属性和以下命名一致即可）

//右键菜单按钮可见 private void contextMenuStrip1_Opened(object sender, EventArgs e) { if (richTextBox.SelectedText.Length > 0) { CMcopy.Enabled = true; CMcut.Enabled = true; CMdel.Enabled = true; } else { CMcopy.Enabled = false; CMcut.Enabled = false; CMdel.Enabled = false; } if (richTextBox.CanUndo == true) { this.CMcancle.Enabled = true; } else { this.CMcancle.Enabled = false; } if (Clipboard.GetDataObject().GetDataPresent(DataFormats.Text)) { this.CMpaste.Enabled = true; } else { this.CMpaste.Enabled = false; } if (richTextBox.Text != "") { CMselectall.Enabled = true; } else { CMselectall.Enabled = false; } } //右键菜单撤销 private void CMcancle_Click(object sender, EventArgs e) { if (CMcancle.Enabled == true) { Rtextbox.Undo(); Rtextbox.ClearUndo(); } } //右键菜单剪切 private void CMcut_Click(object sender, EventArgs e) { if (CMcut.Enabled == true) { Rtextbox.Cut(); } } //右键菜单复制 private void CMcopy_Click(object sender, EventArgs e) { if (CMcopy.Enabled == true) { richTextBox.Copy(); } } //右键菜单粘贴 private void CMpaste_Click(object sender, EventArgs e) { if (CMpaste.Enabled == true) { richTextBox.Paste(); } } //右键菜单删除 private void CMdel_Click(object sender, EventArgs e) { if (CMdel.Enabled == true) { richTextBox.SelectedText = ""; } } //右键菜单全选 private void CMselectall_Click(object sender, EventArgs e) { richTextBox.SelectAll(); } //右键菜单阅读顺序 private void CMalign_Click(object sender, EventArgs e) { if (CMalign.Checked == true) { richTextBox.SelectionAlignment = HorizontalAlignment.Right; } else { richTextBox.SelectionAlignment = HorizontalAlignment.Left; } }