如何有选择地强调在RichTextBox的字符串？ [英] How to selectively underline strings in RichTextBox?

问题描述

在点击按钮后，我的程序 - 选定的ListView项应该被复制到RichTextBox中。 ListView控件包含联系信息，我想要完成的效果类似于一个在Oultook（选择从通讯录联系人时）。我的代码是服务于这一目的的部分看起来像：

In my program after clicking on the button - selected ListView entries should be copied to RichTextBox. ListView contains contact information, and the effect I want to accomplish is similar to the one in Oultook (when choosing contacts from contact book). Part of my code that serves this purpose looks like that:

    private void toButton_Click(object sender, EventArgs e)
    {
        int start = 0;
        for (int i = 0; i < contactsListView.SelectedItems.Count; i++)
        {
            if (contactsTextBox.TextLength != 0) contactsTextBox.Text += "; ";
            start = contactsTextBox.TextLength;
            contactsTextBox.Text += contactsListView.SelectedItems[i].Text + " " + contactsListView.SelectedItems[i].SubItems[1].Text + " [" + contactsListView.SelectedItems[i].SubItems[2].Text + "]";
            contactsTextBox.Select(start, contactsTextBox.TextLength);       
            contactsTextBox.SelectionFont = new Font(contactsTextBox.SelectionFont, FontStyle.Underline);
            contactsTextBox.DeselectAll();
            contactsTextBox.SelectionFont = new Font(contactsTextBox.SelectionFont, FontStyle.Regular);
        }
    }

不幸的是不知何故fontstyle的是整个文本和一切我继承从ListView的条目还强调后进入

Unfortunately somehow FontStyle is inherited by entire text and everything I enter after entry from ListView is also underlined.

所以我的问题是 - 如何强调只有某些文本（其中我已经犯了一个错误）

So my question is - how to underline only certain text (where I have made a mistake)?

有上计算器这里类似的话题不幸的是在我的情况的解决方案说明会出现资源浪费。

There is similar topic on stackoverflow here unfortunately in my case solution stated there will be waste of resources.

推荐答案

试试这个：

        int start = 0;
        for (int i = 0; i < contactsListView.SelectedItems.Count; i++)
        {
            if (contactsTextBox.TextLength != 0) contactsTextBox.Text += "; ";
            start = contactsTextBox.TextLength;
            contactsTextBox.Text += contactsListView.SelectedItems[i].Text +" " + contactsListView.SelectedItems[i].SubItems[1].Text + " [" + contactsListView.SelectedItems[i].SubItems[2].Text + "]";
        }


        this.contactsTextBox.Text += " ";
        this.contactsTextBox.SelectionStart = 0;
        this.contactsTextBox.SelectionLength = this.contactsTextBox.Text.Length-1;
        contactsTextBox.SelectionFont = new Font(contactsTextBox.SelectionFont, FontStyle.Underline);
        this.contactsTextBox.SelectionLength = 0;

总劈，但基本上，如果你选择文本它毕竟存在，但不要选择这一切（这就是为什么我添加了额外的），然后将选定的文本，它有预期的效果。

Total hack, but basically, if you select the text after it's all there, but don't select ALL of it (which is why I add the extra " ") and then set the selection text, it has the desired effect.

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