how to keep autocomplete panel open when click outside the panel without select option?

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#15,899 创建于 2019年4月25日 9 条评论 4 个 reaction 已指派 0 人在 GitHub 查看

area: material/autocomplete feature P4

描述

#### Bug, feature request, or proposal:
this is a feature request

#### What is the expected behavior?
i want to keep autocomplete panel open when click outside the panel without select an option

#### What is the current behavior?
the panel is closed when click outside

#### What are the steps to reproduce?
https://stackblitz.com/angular/ynbmnnrjolq

#### What is the use-case or motivation for changing an existing behavior?

#### Which versions of Angular, Material, OS, TypeScript, browsers are affected?
i work with angular 7.x

#### Is there anything else we should know?

从链接的 StackBlitz 重现和其中的 Angular 7.x autocomplete 设置开始。跟踪点击外部后关闭面板的行为，然后定义相应的更改，使未选择任何选项时面板仍保持打开。完成的标准是，重现的交互会在不选择选项的情况下保持面板打开。

由索引模型根据 Issue 内容生成。