通过 iview 的checkbox 控制菜单树

数据格式

后台返回数据格式为

 var tree = [
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 24,
              name: "二级菜单A"
            },
            {
              children: [],
              hasRole: true,
              id: 27,
              name: "二级菜单B"
            },
            {
              children: [],
              hasRole: true,
              id: 25,
              name: "二级菜单C"
            },
            {
              children: [],
              hasRole: true,
              id: 26,
              name: "二级菜单D"
            }
          ],
          hasRole: true,
          id: 7,
          name: "一级菜单E"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 21,
              name: "二级菜单F"
            },
            {
              children: [],
              hasRole: false,
              id: 20,
              name: "二级菜单G"
            },
            {
              children: [],
              hasRole: false,
              id: 23,
              name: "二级菜单H"
            },
            {
              children: [],
              hasRole: false,
              id: 22,
              name: "二级菜单I"
            }
          ],
          hasRole: false,
          id: 6,
          name: "一级菜单J"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 32,
              name: "二级菜单K"
            },
            {
              children: [],
              hasRole: false,
              id: 33,
              name: "二级菜单L"
            },
            {
              children: [],
              hasRole: false,
              id: 28,
              name: "二级菜单M"
            },
            {
              children: [],
              hasRole: false,
              id: 29,
              name: "二级菜单N"
            },
            {
              children: [],
              hasRole: false,
              id: 30,
              name: "二级菜单O"
            },
            {
              children: [],
              hasRole: false,
              id: 31,
              name: "二级菜单P"
            }
          ],
          hasRole: false,
          id: 8,
          name: "一级菜单Q"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 13,
              name: "二级菜单R"
            }
          ],
          hasRole: false,
          id: 3,
          name: "一级菜单S"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 19,
              name: "二级菜单T"
            },
            {
              children: [],
              hasRole: false,
              id: 17,
              name: "二级菜单U"
            },
            {
              children: [],
              hasRole: false,
              id: 16,
              name: "二级菜单V"
            },
            {
              children: [],
              hasRole: false,
              id: 18,
              name: "二级菜单W"
            }
          ],
          hasRole: false,
          id: 5,
          name: "一级菜单X"
        },
        {
          children: [],
          hasRole: true,
          id: 1,
          name: "一级菜单Y"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 14,
              name: "二级菜单Z"
            },
            {
              children: [],
              hasRole: false,
              id: 15,
              name: "二级菜单0"
            }
          ],
          hasRole: false,
          id: 4,
          name: "一级菜单1"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 12,
              name: "二级菜单2"
            },
            {
              children: [],
              hasRole: false,
              id: 11,
              name: "二级菜单3"
            },
            {
              children: [],
              hasRole: false,
              id: 10,
              name: "二级菜单4"
            },
            {
              children: [],
              hasRole: false,
              id: 9,
              name: "二级菜单5"
            }
          ],
          hasRole: false,
          id: 2,
          name: "一级菜单6"
        }
      ];

样式

F0CCA897-EF77-4494-A138-FD6180F80EB6.png

代码

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>iview example</title>
    <link
      rel="stylesheet"
      type="text/css"
      href="http://unpkg.com/iview/dist/styles/iview.css"
    />
    <script
      type="text/javascript"
      src="http://vuejs.org/js/vue.min.js"
    ></script>
    <script
      type="text/javascript"
      src="http://unpkg.com/iview/dist/iview.min.js"
    ></script>

    <style>
      #app {
        margin-top: 100px;
      }
      .boxer {
        width: 50%;
        margin-left: 20%;
        margin-top: 20px;
      }

      .line-split {
        border-bottom: 3px solid #eaa;
        padding-bottom: 6px;
        margin-bottom: 6px;
      }
    </style>
  </head>

  <body>
    <div id="app">
      <div v-for="(unit,indexu) in tree" class="boxer">
        <!-- @click.prevent.native="handleCheckAll" -->
        <div class="line-split">
          <Checkbox
            :indeterminate="treelist[indexu].indeterminate"
            :value="treelist[indexu].check"
            @click.prevent.native="handleCheckAll(indexu)"
            >{{ unit.name }}
          </Checkbox>
        </div>

        <!-- 双向绑定异常 -->
        <Checkbox-Group
          v-model="treelist[indexu].list"
          @on-change="checkAllGroupChange(indexu)"
        >
          <Checkbox v-for="iunit in unit.children" :label="iunit.id"
            >{{ iunit.name }}
          </Checkbox>
        </Checkbox-Group>
      </div>
    </div>

    <script>
      var tree = [
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 24,
              name: "二级菜单A"
            },
            {
              children: [],
              hasRole: true,
              id: 27,
              name: "二级菜单B"
            },
            {
              children: [],
              hasRole: true,
              id: 25,
              name: "二级菜单C"
            },
            {
              children: [],
              hasRole: true,
              id: 26,
              name: "二级菜单D"
            }
          ],
          hasRole: true,
          id: 7,
          name: "一级菜单E"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 21,
              name: "二级菜单F"
            },
            {
              children: [],
              hasRole: false,
              id: 20,
              name: "二级菜单G"
            },
            {
              children: [],
              hasRole: false,
              id: 23,
              name: "二级菜单H"
            },
            {
              children: [],
              hasRole: false,
              id: 22,
              name: "二级菜单I"
            }
          ],
          hasRole: false,
          id: 6,
          name: "一级菜单J"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 32,
              name: "二级菜单K"
            },
            {
              children: [],
              hasRole: false,
              id: 33,
              name: "二级菜单L"
            },
            {
              children: [],
              hasRole: false,
              id: 28,
              name: "二级菜单M"
            },
            {
              children: [],
              hasRole: false,
              id: 29,
              name: "二级菜单N"
            },
            {
              children: [],
              hasRole: false,
              id: 30,
              name: "二级菜单O"
            },
            {
              children: [],
              hasRole: false,
              id: 31,
              name: "二级菜单P"
            }
          ],
          hasRole: false,
          id: 8,
          name: "一级菜单Q"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 13,
              name: "二级菜单R"
            }
          ],
          hasRole: false,
          id: 3,
          name: "一级菜单S"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 19,
              name: "二级菜单T"
            },
            {
              children: [],
              hasRole: false,
              id: 17,
              name: "二级菜单U"
            },
            {
              children: [],
              hasRole: false,
              id: 16,
              name: "二级菜单V"
            },
            {
              children: [],
              hasRole: false,
              id: 18,
              name: "二级菜单W"
            }
          ],
          hasRole: false,
          id: 5,
          name: "一级菜单X"
        },
        {
          children: [],
          hasRole: true,
          id: 1,
          name: "一级菜单Y"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 14,
              name: "二级菜单Z"
            },
            {
              children: [],
              hasRole: false,
              id: 15,
              name: "二级菜单0"
            }
          ],
          hasRole: false,
          id: 4,
          name: "一级菜单1"
        },
        {
          children: [
            {
              children: [],
              hasRole: false,
              id: 12,
              name: "二级菜单2"
            },
            {
              children: [],
              hasRole: false,
              id: 11,
              name: "二级菜单3"
            },
            {
              children: [],
              hasRole: false,
              id: 10,
              name: "二级菜单4"
            },
            {
              children: [],
              hasRole: false,
              id: 9,
              name: "二级菜单5"
            }
          ],
          hasRole: false,
          id: 2,
          name: "一级菜单6"
        }
      ];

      var treelist = [];
      var treei = 0;
      for (let index = 0; index < tree.length; index++) {
        var node = {};
        var nodelist = [];
        var alllist = [];
        var nodei = 0;
        var menu = tree[index];
        for (let ini = 0; ini < menu.children.length; ini++) {
          if (menu.children[ini].hasRole) {
            nodelist[nodei++] = menu.children[ini].id;
          }
          alllist[ini] = menu.children[ini].id;
        }
        node.size = menu.children.length;
        node.id = menu.id;
        node.list = nodelist;
        node.indeterminate = nodei > 0 && node.size != nodei;
        node.alllist = alllist;
        node.check = node.size == nodei;
        treelist[treei++] = node;
      }

      new Vue({
        el: "#app",
        data: {
          treelist: treelist
        },
        methods: {
          handleCheckAll: function(index) {
            if (treelist[index].indeterminate) {
              treelist[index].check = false;
            } else {
              treelist[index].check = !treelist[index].check;
            }
            treelist[index].indeterminate = false;

            if (treelist[index].check) {
              treelist[index].list = treelist[index].alllist;
            } else {
              treelist[index].list = [];
            }
          },
          checkAllGroupChange: function(index) {
            if (
              treelist[index].list.length === treelist[index].alllist.length
            ) {
              treelist[index].indeterminate = false;
              treelist[index].check = true;
            } else if (treelist[index].list.length > 0) {
              treelist[index].indeterminate = true;
              treelist[index].check = false;
            } else {
              treelist[index].indeterminate = false;
              treelist[index].check = false;
            }
          }
        }
      });
    </script>
  </body>
</html>

  • iview 定义的函数可以传入自定义参数调用
  • 数组中存放数字正常使用, 当使用 toString() 函数时,不能正常绑定数据.说明参数的类型是必须相同的(如果在js 中获取id 时使用了 toString() ,那么在 :label = id 时 也要 用 toString())
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