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      1. layui树状组件tree怎么默认勾选?

        时间:2024-11-09

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                  layui树状组件tree中,勾选问题可以通过以下方法解决:

                  通过tree的oncheck事件来监听勾选操作,然后根据勾选状态进行相应的处理。例如:
                  tree.on('check', function(obj) {
                    // 获取勾选状态
                    var isChecked = obj.checked;
                    // 获取当前节点数据
                    var data = obj.data;
                    
                    // 根据勾选状态进行处理
                    if (isChecked) {
                      // 处理勾选操作
                      console.log('节点被勾选:', data);
                    } else {
                      // 处理取消勾选操作
                      console.log('节点被取消勾选:', data);
                    }
                  });
                  
                  如果需要在初始化时指定部分节点的勾选状态,可以通过设置data中的checked属性来实现。例如:
                  var data = [
                    {
                      title: '节点1',
                      id: '1',
                      checked: true // 设置勾选状态为true
                    },
                    {
                      title: '节点2',
                      id: '2',
                      checked: false // 设置勾选状态为false
                    }
                  ];
                  
                  tree.render({
                    elem: '#tree',
                    data: data,
                    showCheckbox: true // 显示复选框
                  });
                  
                  通过以上方法,可以实现在layui树状组件tree中解决勾选问题。
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