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Use mint-ui to achieve three-level linkage effects in provinces and municipalities
Use mint-ui to achieve three-level linkage effects in provinces and municipalities
Below I will share with you a sample code that uses mint-ui to achieve the three-level linkage effect of provinces and municipalities. It has a good reference value and I hope it will be helpful to everyone.
Reference plug-in: the picker function in Ele.me’s mint-ui component. For specific API, please refer to the official website description: http://mint-ui.github.io/docs/#/zh-cn2/picker
Background: The project needs to create a province-city-region selection cascade effect. I searched it on gayhub and decided to use mint-ui components because each function is complete and the design is similar to ours. The project style is similar.
Specific implementation:
By reading the examples on the official website, you can probably know the usage of this component:
Write the component in vue:
We can see that this component The data slots passed in and the event that is triggered when it changes: onValuesChange(), so as long as slots and onValuesChange are registered in the parent component that uses this component, it can be achieved
The following is the official website Example:
export default {
methods: {
onValuesChange(picker, values) {
if (values[0] > values[1]) {
picker.setSlotValue(1, values[0]);
}
}
},
data() {
return {
slots: [
{
flex: 1,
values: ['2015-01', '2015-02', '2015-03', '2015-04', '2015-05', '2015-06'],
className: 'slot1',
textAlign: 'right'
}, {
pider: true,
content: '-',
className: 'slot2'
}, {
flex: 1,
values: ['2015-01', '2015-02', '2015-03', '2015-04', '2015-05', '2015-06'],
className: 'slot3',
textAlign: 'left'
}
]
};
}
};In actual operation, when I wanted to use picker to select provinces, cities, and regions, I found that the biggest problem was that I could not get data that conformed to the data format of the plug-in, so After scraping a province, city, and region data from Baidu, I wrote a function to process it. Here, I share it with you:
onProvinceChange(picker, values) {
this.province = picker.getValues()[0]
var cityArr = [];
for(var key in provinceCity[this.province]) {
cityArr.push(key);
}
this.slots2[0].values = cityArr;
},
onCityChange(picker, values) {
this.city = picker.getValues()[0]
var countyArr = [];
for(var key in provinceCity[this.province][this.city]) {
countyArr.push(key);
}
this.slots3[0].values = countyArr;
},
onCountyChange(picker, values) {
this.county = picker.getValues()[0]
},Three sets of data And the three methods are as above. When selecting a province, the corresponding city is dynamically matched. Similarly, when the city is selected, the corresponding region is dynamically matched. In this way, the effect of three-level linkage can be achieved.
The above is I compiled it for everyone, I hope it will be helpful to everyone in the future.
Related articles:
Using vue2.0.js to implement multi-level linkage selectors
Comparing times on the same day through JavaScript Size
How to use SVG in React and Vue projects
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