主从表，从表是一个treegrid，加载完数据后，点击节点进入编辑状态。

columns : [ [ {            title : "ID",            field : "id",            hidden : true        }, {            field : "pid",            hidden : true        },  {            title : "AAA",            field : "aaa",            width : 70,            align : "center",            halign : "center"        }, {            title : "BBB",            field : "bbb",            width : 70,            align : "center",            halign : "center",            editor : {                type : "combobox",                options : {                    data : [ {                        "id" : 0,                        "text" : "苹果"                    }, {                        "id" : 1,                        "text" : "梨子"                    } ],                    valueField : 'id',                    textField : 'text',                    editable : false,                    // required : true,                    panelHeight : "auto",                    missingMessage : "请选择水果",                    onSelect : function(record) {                        //editingId是进入编辑状态行的id                        var editors = $('#grid').datagrid('getEditors', $('#editingId').val());                        if(record.id == 1){//选择梨子                            var feditor = editors[1];//一行中第二个编辑框                            //将编辑框设置成必填                            $(feditor.target).validatebox({required:true});                            //将编辑框设置成可编辑                            $(feditor.target).numberbox('enable');                            var feditor2 = editors[2];//一行中第三个编辑框                            $(feditor2.target).validatebox({required:true});                        }else if(record.id == 0){//选择苹果                            var feditor = editors[1];                            $(feditor.target).validatebox({required:false});                            $(feditor.target).validatebox("setValue","");                            $(feditor.target).numberbox('disable');                            var feditor2 = editors[2];                            $(feditor2.target).validatebox({required:false});                            $(feditor2.target).validatebox("setValue","");                        }                    },                }            }        }

开启编辑状态

$('#rulesgrid').treegrid('beginEdit', index);