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                # JVXE多級聯動 [TOC] > * 多級聯動只能作用于`JVxeTypes.select`組件 > * 配置示例:src/views/demo/jeecg/JVxeTableDemo/JVxeDemo4.vue ## 配置文檔 JVxeTable 內置了多級聯動實現,只需要進行簡單的配置即可使用。 ### 組件配置 組件上新增`linkageConfig`參數,綁定一個數組,數組內每一項都是一個聯動配置,所以可以實現多個相隔離的聯動。 ![](https://img.kancloud.cn/d2/cb/d2cb61a7379635d95677a631ca07a46a_287x201.png) ![](https://img.kancloud.cn/72/e8/72e8be1d86c6bcae5b25365deda65bf7_417x125.png) * `key`配置聯動第一級的columnKey * `requestData`定義一個方法,返回Promise,Promise里返回一個數組,應用于`select`的下拉選項(須包含`value`、`text`字段) ### column 配置 column上只需要增加一個`linkageKey`屬性即可,意思是聯動下級。 比如第一級就填寫第二級的columnKey,第二級填寫第三級的columnKey,以此類推,有多少級就可以填寫多少級。 ### 完整配置示例 ![](https://img.kancloud.cn/07/f9/07f9ed6bc4ebc4510547ec0e1e115373_403x814.png) ![](https://img.kancloud.cn/91/82/9182889a13a4afd9f157f4bc56f0130f_477x150.png) ### 效果演示 演示地址:組件&功能 --> Jeecg組件示例 --> JVxeTable示例 --> 聯動示例 ![](https://img.kancloud.cn/da/48/da48be31bc248f3ff05ab712b56f9a0c_758x284.png)
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