PyQt/QComboBox/README.md
2019-05-22 11:07:42 +08:00

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# QComboBox
- 目录
- [下拉数据关联](#1下拉数据关联)
## 1、下拉数据关联
[运行 CityLinkage.py](CityLinkage.py)
一个省市区关联的三级联动数据源在data.json中
1. 主要用了`QComboBox`的`setModel`设置一个`QSortFilterProxyModel`过滤模型
2. 并根据唯一编码过滤,为了不影响内容显示,唯一编码的角色为`ToolTipRole`
3. 用`QColumnView`可以实现类似效果
![CityLinkage](ScreenShot/CityLinkage.gif)