在选项卡中将上下文菜单添加到richtextbox-Java 学习之路

-2

这是用于创建带有富文本框的新选项卡并选择当前richtextbox的代码 .

private RichTextBox GetRichTextBox()
    {
        RichTextBox rtb = null;
        TabPage tp = tabControl1.SelectedTab;

        if (tp != null)
        {
            rtb = tp.Controls[0] as RichTextBox;
        }

        return rtb;
    }

    private void newToolStripMenuItem_Click(object sender, EventArgs e)
    {
        TabPage tp = new TabPage("New Document");
        RichTextBox rtb = new RichTextBox();
        rtb.Dock = DockStyle.Fill;

        tp.Controls.Add(rtb);
        tabControl1.TabPages.Add(tp);
    }

我需要能够向richtextbox添加一个上下文菜单，包括我可能需要的剪切，复制，粘贴和其他控件 . 我不知道该怎么做 .

1 回答

通常，您可以向表单添加ContextMenuStrip，使用设计器定义菜单项，然后转到RichTextBox属性并将ContextMenuStrip实例分配给RichTextBox的ContextMenuStrip属性 .

但是，您可以使用代码动态创建相同的接口：

TabPage tp = new TabPage("New Document");
RichTextBox rtb = new RichTextBox();
rtb.Dock = DockStyle.Fill;
ContextMenuStrip ctx = new ContextMenuStrip();
ctx.Items.Add(new ToolStripMenuItem("Cut",null, cutClick));
ctx.Items.Add(new ToolStripMenuItem("Copy", null, copyClick))
ctx.Items.Add(new ToolStripMenuItem("Paste", null, pasteClick));
// Add other menu items as you need

rtb.ContextMenuStrip = ctx;
.....



void cutClick(object sender, EventArgs e)
{
    RichTextBox rtb = sender as RichTextBox;
    if(rtb.SelectedText.Length > 0)
        rtb.Cut();
}
void copyClick(object sender, EventArgs e)
{
    RichTextBox rtb = sender as RichTextBox;
    if(rtb.SelectedText.Length > 0)
       rtb.Copy();
}
void pasteClick(object sender, EventArgs e)
{
    RichTextBox rtb = sender as RichTextBox;
    DataFormats.Format textFormat = DataFormats.GetFormat(DataFormats.Text);
    if(rtb.CanPaste(textFormat))
        rtb.Paste();
}

回复于 2024-05-02T06:09:55+08:00

在选项卡中将上下文菜单添加到richtextbox

1 回答

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