问题描述
说我有一个 QListWidget
(隐藏)和一个 QLineEdit
有10个名字。现在,如果我在行编辑中键入字母a,它应该显示列表窗口小部件中以字母A开头的所有这些名称的下拉列表。用户可以使用鼠标或键盘进行选择(因为将存在垂直滚动条)。我不知道如果一个 QLineEdit
可以做到这一点。
Say I have 10 names in a QListWidget
(which is hidden) and an a QLineEdit
. Now if I type the letter "a" in the line Edit it should display a drop down of all those name in the list widget that begin with the letter "A". the user could select using a mouse or a keyboard (since there will be a vertical scroll-bar). I am not sure if a QLineEdit
could do this. But I would like to know what is out there to accomplish this.
推荐答案
您可以使用 QCompleter
,它为 QLineEdit
和 QComboBox
小部件中的自动完成提供了一种方法。当用户开始输入单词时, QCompleter
建议根据单词列表完成单词的可能方法。
You can use QCompleter
which provides a way for autocompletion in widgets like QLineEdit
and QComboBox
. When the user starts typing a word, QCompleter
suggests possible ways of completing the word, based on a word list.
Qt文档中的示例:
QStringList wordList;
wordList << "alpha" << "omega" << "omicron" << "zeta";
QLineEdit *lineEdit = new QLineEdit(this);
QCompleter *completer = new QCompleter(wordList, this);
completer->setCaseSensitivity(Qt::CaseInsensitive);
lineEdit->setCompleter(completer);
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