我的是根据父级id做的一些判断
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<el-tree draggable :allow-drop="allowDrop" @node-drop="sort" accordion style="font-size:14px;width:250px;" ref="tree" :data="catalogList" :props="defaultProps" :expand-on-click-node="false" node-key="id" :highlight-current="true" :load="loadNode" lazy :render-content="renderContent" @node-click="handleNodeClick" empty-text="暂无数据"> allowDrop(draggingNode, dropNode, type){ //注掉的是同级拖拽 /* if (draggingNode.data.level === dropNode.data.level) { if (draggingNode.data.aboveId === dropNode.data.aboveId) { return type === 'prev' || type === 'next' } } else { // 不同级进行处理 return false } */ //任意级别拖拽 if (draggingNode.data.aboveId === dropNode.data.aboveId) { return type === 'prev' || type === 'next' } else { return type === 'prev' || type === 'next' || type === 'inner' } }, //拖拽完成之后要重新排序 /* * draggingNode：被拖拽节点对应的 Node * dropNode：结束拖拽时最后进入的节点 * type: 被拖拽节点的放置位置（before、after、inner） * event */ sort(draggingNode,dropNode,type,event) { console.log(draggingNode) console.log(dropNode) if (draggingNode.data.aboveId === dropNode.data.aboveId) { let obj = { aboveId:'', arr:[] } obj.aboveId = dropNode.data.aboveId for (let item of dropNode.parent.childNodes) { obj.arr.push(item.data.id) } console.log(obj) this.updateOrderMe(obj) } else { let obj = { aboveId:'', id:'', newAboveId:'' } obj.aboveId = draggingNode.data.aboveId obj.id = draggingNode.data.id obj.newAboveId = dropNode.data.id this.randomDrag(obj) } }, randomDrag(obj) { this.$http .post(url, obj).then(res =>{ if (!res.data.success) { this.$message.warning(res.data.msg) } }) }, updateOrderMe(obj) { this.$http .post(url, { aboveId:obj.aboveId, ids: obj.arr }).then(res =>{ if (!res.data.success) { this.$message.warning(res.data.msg) } }) } |
补充知识：element-ui tree 实现同级拖拽
我就废话不多说了，大家还是直接看代码吧~
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<template> <div> <el-tree draggable :allow-drop="allowDrop" @node-drop="sort" ref="tree" :data="data2" :props="defaultProps" show-checkbox default-expand-all node-key="id" highlight-current ></el-tree> <div class="buttons"> <el-button @click="getCheckedNodes">通过 node 获取</el-button> <el-button @click="getCheckedKeys">通过 key 获取</el-button> <el-button @click="setCheckedNodes">通过 node 设置</el-button> <el-button @click="setCheckedKeys">通过 key 设置</el-button> <el-button @click="resetChecked">清空</el-button> </div> </div></template> <script>// import draggable from "vuedraggable";// import Sortable from "sortablejs";export default { methods: { getCheckedNodes() { console.log(this.$refs.tree.getCheckedNodes()); }, getCheckedKeys() { console.log(this.$refs.tree.getCheckedKeys()); }, setCheckedNodes() { this.$refs.tree.setCheckedNodes([ { id: 5, label: "二级 2-1" }, { id: 9, label: "三级 1-1-1" } ]); }, setCheckedKeys() { this.$refs.tree.setCheckedKeys([3]); }, resetChecked() { this.$refs.tree.setCheckedKeys([]); } }, mounted() { const el = document.querySelectorAll(".el-tree")[0]; console.log(el); }, data() { return { data2: [ { id: 1, label: "一级 1", children: [ { id: 4, label: "二级 1-1", prop: "4" } ] }, { id: 2, label: "一级 2", children: [ { id: 5, label: "二级 2-1", prop: "5" }, { id: 6, label: "二级 2-2", prop: "6" } ] }, { id: 3, label: "一级 3", children: [ { id: 7, label: "二级 3-1", prop: "7" }, { id: 8, label: "二级 3-2", prop: "9" } ] }, { id: 9, label: "一级4" } ], defaultProps: { children: "children", label: "label" }, allowDrop(draggingNode, dropNode, type) { if (draggingNode.level === dropNode.level) { if (draggingNode.parent.id === dropNode.parent.id) { // 向上拖拽 || 向下拖拽 return type === "prev" || type === "next"; } } else { // 不同级进行处理 return false; } }, sort(draggingNode, dropNode, type, event) { // console.log('排序') // console.log("<><><>>><><<><><><><><><><>") // 拖拽之后的重新组合的数组 // console.log(dropNode.parent); //dropNode.parent.childNodes =[] let obj = { aboveId: "", arr: [] }; obj.aboveId = dropNode.data.aboveId; for (let item of dropNode.parent.childNodes) { obj.arr.push(item.data.id); } } }; }};</script> |
以上这篇vue elementui tree 任意级别拖拽功能代码就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_43173924/article/details/89638576
