ElementUI之el-scrollbar+el-select组合

这篇文章主要是使用了ElementUI的隐藏滚动组件和select选择器，并处理在使用过程中遇到的问题。

1、自定义select样式

2、ScrollBar+select组合

3、当select处于下拉状态时，滚动文本已经到达底部还会继续滚动

4、设置滚动区域的高度，也可设置max-height

/deep/.default-scrollbar__view {
        height: 320px;
}

5、滚动区域出现横向滚动条，隐藏横向滚动栏

/deep/.el-scrollbar {
        position: relative;
        .el-scrollbar__wrap {
            overflow-x: hidden; // 隐藏横向滚动栏
        }
}

6、由于select的下拉框中也使用了隐藏的滚动条，使下拉区域在数据多的情况下也能滚动内容区，再加上自定义的样式，使之出现了3的情况。这是需要设置下拉框面板的内容溢出隐藏。又因为多重滚动的使用使下拉框的内

容区最后一条数据显示不全，则需要设置其padding值将盒子撑开已达到数据不被遮盖的目的。

/deep/.el-select-dropdown {
    overflow: hidden;
    .el-scrollbar { 
        padding-bottom: 17px;
        .el-scrollbar__wrap {
            max-height: 150px;
            overflow-x: hidden;
        }
    }
}

7、下拉框的效果之自定义样式

  

.common-select{
    .input-title .el-select{
        background: none;
        border: none;
         100%;
    }
    .el-select-dropdown{
        border: solid 1px #404040;
        background-color: #404040;
    }
    .el-select-dropdown__item selected hover {
        border: none;
    }
    .el-input{
        border: none;
    }
    .el-input__inner{
        background: #262626;
        border: none;
        text-align: center;
        color: #ffffff;
    }
    .el-select .el-input.is-focus .el-input__inner{
        border: none;
    }
    .el-popper[x-placement^="bottom"] .popper__arrow{
        border-bottom-color: #404040;
    }
    .el-popper[x-placement^="bottom"] .popper__arrow::after{
        border-bottom-color: #404040;
    }
    .el-popper[x-placement^="bottom"] .popper__arrow{
        top: 9999px;
    }
    .el-select .el-input__inner:focus{
        border-color: #262626;
    }
    .el-input__inner:focus{
        border-color: #262626;
    }
    .el-select-dropdown {
        position: absolute;
        z-index: 1001;
        border: solid 1px #404040;
        border-radius: 4px;
        background-color: #404040;
        -webkit-box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
        box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        margin: 5px 0; 
    }
    .el-select-dropdown.is-multiple .el-select-dropdown__item.selected {
        color: #ffffff;
        background-color: #404040;
    }
    .el-select-dropdown.is-multiple .el-select-dropdown__item.selected.hover {
        background-color: #404040;
    }
    .el-select-dropdown__item.selected{
        color: #FFBE34;
    }
    .el-input--suffix .el-input__inner{
        text-align: center;
    }
    .el-select-dropdown__item,.el-select-dropdown__item  {
        background-color: #404040;
        color: #ffffff;
        font-weight: bold;
        text-align: center;
    }
    .el-select-dropdown__item.hover,.el-select-dropdown__item:hover{
        background-color: #404040;
        color: #FFBE34;
        text-decoration: underline #FFBE34;
    }
    span:focus-within {
        border: none;
        outline: none;
      }
}

上菜咯(*^__^*)：

<template>
    <div class="scrollbar-select">
        <h1>滚动条下拉框</h1>
        <div class="register-contanier">
            <el-scrollbar
                :key="2"
                class="default-scrollbar srcoll-bar-init"
                wrap-class="default-scrollbar__wrap"
                view-class="default-scrollbar__view"
            >
                <div class="register-center common-select">
                    <el-select v-model="urlValue" :placeholder="`请选择`" :popper-append-to-body="false">
                        <el-option v-for="(subItem, subIndex) in urlList" :label="subItem.key" :value="subItem.value" :key="subIndex"></el-option>
                    </el-select>
                </div>

                <ul>
                    <li v-for="n in 50" :key="n">啊啊啊啊啊啊啊啊啊啊{{ n }}</li>
                </ul>
            </el-scrollbar>
        </div>
    </div>
</template>

<script>
export default {
    name: '',
    data() {
        return {
            urlValue: '',
            urlList: [
                {
                    "key": "https://xxx.com",
                    "value": "1"
                },
                {
                    "key": "https://xxx.com1",
                    "value": "2"
                },
                {
                    "key": "https://xxx.com2",
                    "value": "3"
                },
                {
                    "key": "https://xxx.com1",
                    "value": "4"
                },
                {
                    "key": "https://xxx.com2",
                    "value": "5"
                },
                {
                    "key": "https://xxx.com1",
                    "value": "6"
                },
                {
                    "key": "https://xxx.com2",
                    "value": "7"
                },
                {
                    "key": "https://xxx.com1",
                    "value": "8"
                },
                {
                    "key": "https://xxx.com2",
                    "value": "9"
                },
                {
                    "key": "https://xxx.com444",
                    "value": "10"
                }
            ]
        };
    },
    components:{
    }
}
</script>

<style lang="less" scoped>
.register-contanier {
    position: relative;
    height: 320px;
     500px;
    margin: auto;
    margin-top: 150px;
    background: #262626;
    .srcoll-bar-init{
        height: 100%;
    }
    /deep/.default-scrollbar__view {
        height: 320px;
    }
    /deep/.el-scrollbar {
        position: relative;
        .el-scrollbar__wrap {
            overflow-x: hidden; // 隐藏横向滚动栏
        }
    }
}
.register-content {
    position: relative;
    height: 320px;
     500px;
    margin: auto;
    margin-top: 154px;
    padding: 30px 50px;
    background: #262626;
    display: flex;
    align-items: center;
    box-sizing: border-box;
}
.common-select{
　　padding: 0 30px;
}
/deep/.el-select{
     100%;
}
/deep/.el-select-dropdown {
    overflow: hidden;
    .el-scrollbar { 
        padding-bottom: 17px;
        .el-scrollbar__wrap {
            max-height: 150px;
            overflow-x: hidden;
        }
    }
}
</style>

文章到这里就结束了。欢迎小伙伴们评论留言。(*^__^*)