EasyuiCombobox三级联动

有许多刚接触Easyui中Combobox控件的朋友可能都会遇到的问题：如何将Combobox做成三级联动?

先本人有个三级联动的案例给大家参考参考，经测试能通过。注意Combobox绑定的数据是Json格式哟。

 $(function () {

                var project1 = $("#project1").combobox({

                    url: 'Project_Select.ashx?flg=0',

                    editable: false,

                    valueField: 'ID',

                    textField: 'projectname',

                    editable: false, //不允许手动输入

                    onSelect: function (record) {

                        project2.combobox({

                            disabled: false,

                            url: 'Project_Select.ashx?flg=' + record.ID,

                            editable: false,

                            valueField: 'ID',

                            textField: 'projectname'

                        }).combobox('clear');

                    }

                });

                var project2 = $("#project2").combobox({

                    disabled: true,

                    editable: false,

                    valueField: 'ID',

                    textField: 'projectname',

                    onSelect: function (record) {

                        project3.combobox({

                            disabled: false,

                            url: 'Project_Select.ashx?flg=' + record.ID,

                            editable: false,

                            valueField: 'ID',

                            textField: 'projectname'

                        }).combobox('clear');

                    }

                });

                var project3 = $("#project3").combobox({

                    disabled: true,

                    editable: false,

                    valueField: 'ID',

                    textField: 'projectname'

                });

            });