在一个el-form表单中有5个el-form-item;
每个el-form-item是一个el-select控件;
这5个el-select控件遵循这样的规则,都是使用同一个list集合,如果第一个el-select选择了list中的某一项,那么这一项就被禁用;其他的el-selet就不能选择这一项了;
如果第二个el-select选择了list中的某一项,那么这一项和第一个el-select选择的项都禁用,
其他的el-select就不能选择这两项了;以此类推
javascript
<template>
<div>
<el-form :model='form' :rules="rules" ref="form">
<el-form-item v-for="(select, index) in selects" :key="index" :label="'Select ' + (index + 1)"
prop="selectedOptions">
<el-select v-model="form.selectedOptions[index]" @change="handleSelectChange(index)" @clear="handleSelectClear(index)" clearable>
<el-option v-for="option in options" :key="option.value" :label="option.label" :value="option.value" :disabled="isOptionDisabled(option.value)"></el-option>
</el-select>
</el-form-item>
<!-- <el-button type="primary" @click="submitForm">Submit</el-button> -->
</el-form>
</div>
</template>
Js代码:
javascript
<script>
export default {
data() {
return {
options: [
{ label: 'Option 1', value: 1 },
{ label: 'Option 2', value: 2 },
{ label: 'Option 3', value: 3 },
{ label: 'Option 4', value: 4 },
{ label: 'Option 5', value: 5 }
],
form:{
selectedOptions: [null, null, null, null, null],
disabledOptions: [], // 禁用的选项集合
},
rules: {
selectedOptions: [
{ required: true, message: 'Please select at least one option', trigger: 'blur' }
]
}
};
},
computed: {
selects() {
return Array.from({ length: 5 });
}
},
methods: {
// 下拉框选择事件
handleSelectChange(index) {
this.form.disabledOptions = [];
console.log(this.form.selectedOptions,'+++++++ ')
for (let i = 0; i < this.form.selectedOptions.length; i++) {
if (this.form.selectedOptions[i] !== null) {
this.form.disabledOptions.push(this.form.selectedOptions[i]);
}
}
},
// 下拉框清除事件
handleSelectClear(index) {
const clearedValue = this.form.selectedOptions[index];
const indexToRemove = this.form.disabledOptions.indexOf(clearedValue);
if (indexToRemove !== -1) {
this.form.disabledOptions.splice(indexToRemove, 1);
}
},
//是否禁用
isOptionDisabled(value) {
return this.form.disabledOptions.includes(value);
}
}
};
</script>