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vant三级联动自定义数据格式 vant 级联

sanyeah 2024-03-29 15:20:54 gitee 10 ℃ 0 评论

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .home-perspmal-van-cell {
            overflow: hidden;
            background-color: #fff;
            padding: 1.25rem 0.6875rem 1.25rem 0.6875rem;

            .home-perspmal-van-cell__title {
                float: left;

                span {
                    font-size: 1rem;
                    font-family: PingFangSC-Regular, PingFang SC;
                    font-weight: 400;
                    color: rgba(34, 34, 34, 1);
                }
            }

            .home-perspmal-van-cell__value {
                float: right;

                .van-cell::after {
                    border-bottom: 0px;
                }

                .van-cell {
                    padding: 0;
                }

                input {
                    border: 0;
                }

                span {
                    font-size: 1rem;
                    font-family: PingFangSC-Regular, PingFang SC;
                    font-weight: 400;
                    color: rgba(198, 198, 198, 1);
                }
            }

            .home-perspmal-van-cell__values {
                width: 100%;
                padding-top: 1.34375rem;
                display: flex;

                div {
                    width: 100%;

                    div {
                        margin: 0;
                        flex: 1;
                    }

                    div:first-child {
                        justify-content: flex-start;
                    }

                    div:nth-child(2) {
                        justify-content: center;
                    }

                    div:last-child {
                        justify-content: flex-end;
                    }
                }
            }

            .home-perspmal-van-cell__val {
                display: flex;
            }
        }

        /deep/.home-perspmal-van-cell__value span[data-v-3dce2c05] {
            font-size: 0.81875rem;
            font-family: PingFangSC-Regular, PingFang SC;
            color: #323233;
            display: flex;
            justify-content: center;
            align-items: center;
        }
    </style>
</head>

<body>
    <div class="home-perspmal-van-cell">
        <div class="home-perspmal-van-cell__title">
            <span>地区</span>
        </div>
        <div class="home-perspmal-van-cell__value">
            <van-field readonly clickable name="area" :value="merchant_province" placeholder="请选择省市县"
                @click="shArea = true" />
            <van-popup v-model="shArea" position="bottom">
                <van-picker show-toolbar :columns="columns" @confirm="onConfirmc" @cancel="shArea = false"
                    @change="onChange" />
            </van-popup>
        </div>
    </div>
    <script>
        export default {
            data() {
                return {
                    merchant_province: "", //选择地址
                    columns: [{
                            values: "",
                            text: "column1",
                            code: 1
                        },
                        {
                            values: "",
                            text: "column2",
                            code: 0
                        },
                        {
                            values: "",
                            text: "column3",
                            code: 0
                        }
                    ],
                }
            },
            methods: {
                onChange(picker, values) {
                    picker.setColumnValues(1, this.cityData(this.datx, values[0].text));
                    picker.setColumnValues(2, this.counta(this.datx, values[1].text));
                },
                // 修改市
                cityData(data, province) {
                    var that = this;
                    data.forEach(function (res) {
                        if (res.label == province) {
                            that.cityDates = res;
                        }
                    });
                    return that.cityDates.children.map(function (res) {
                        return {
                            text: res.label,
                            code: res.code
                        };
                    });
                },
                counta(data, county) {
                    var that = this;
                    var countyDate = "";
                    that.cityDates.children.forEach(function (res) {
                        if (res.label == county) {
                            countyDate = res;
                        }
                    });
                    // 这里如果没有找到对应的县
                    if (countyDate == "") {
                        countyDate = that.cityDates.children[0];
                    }
                    // return 县
                    return countyDate.children.map(function (res) {
                        return {
                            text: res.label,
                            code: res.code
                        };
                    });

                    // return 返回数据格式,因为我需要省市区code,所以我return的格式是对象,例:[{text:'北京市',code:'1'},{text:'河南省',code:'2'},...],如果你不需要code直接这样就可以 例['北京市','河南省',.....]
                },
                onConfirmc(val) {
                    this.merchant_province = `${val[0].text}/${val[1].text}/${val[2].text}`;
                },
                columnsaqw() {
                    // 默认展示一级的数据
                    let fupayAreaListst = localStorage.getItem("fupayAreaListst");
                    if (fupayAreaListst) {
                        this.data = JSON.parse(localStorage.getItem("fupayAreaListst"));
                    }
                    this.columns[0].values = Object.values(this.data).map(function (e) {
                        return {
                            text: e.label,
                            code: e.code
                        };
                    });
                    // 默认展示二级的数据
                    this.columns[1].values = Object.values(this.data[0].children).map(
                        function (e) {
                            return {
                                text: e.label,
                                code: e.code
                            };
                        }
                    );
                    // 默认展示三级的数据
                    this.columns[2].values = Object.values(
                        this.data[0].children[0].children
                    ).map(function (e) {
                        return {
                            text: e.label,
                            code: e.code
                        };
                    });
                },
            },
            created() {
                let fupayAreaListst = localStorage.getItem("fupayAreaListst");
                if (!fupayAreaListst) {
                    let res = await request(
                        "xxxxxxxx"
                    );
                    console.log(res.data);
                    if (res.data) {
                        this.data = res.data;
                        localStorage.setItem("fupayAreaListst", JSON.stringify(this.data));
                        this.columnsaqw();
                    }
                }
            }
        }
    </script>
</body>

</html>

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