EXT dateRange

Ext.apply(Ext.form.VTypes, {
                daterange: function (val, field) {
                    var date = field.parseDate(val);

                    if (!date) {
                        return;
                    }
                    if (field.startDateField && (!this.dateRangeMax || (date.getTime() != this.dateRangeMax.getTime()))) {
                        var start = Ext.getCmp(field.startDateField);
                        start.setMaxValue(date);
                        start.validate();
                        this.dateRangeMax = date;
                    }
                    else if (field.endDateField && (!this.dateRangeMin || (date.getTime() != this.dateRangeMin.getTime()))) {
                        var end = Ext.getCmp(field.endDateField);
                        end.setMinValue(date);
                        end.validate();
                        this.dateRangeMin = date;
                    }
                    return true;
                },
                daterangeText: "开始日期和结束日期不匹配"
            });

{
                        id: ‘personstartdate‘,
                        xtype: ‘datefield‘,
                        width: 190,
                        maxValue: new Date(),
                        margins: ‘0 0 0 6‘,
                        labelWidth: 60,
                        fieldLabel: ‘从‘,
                        format: ‘Y-m-d‘,
                        endDateField: ‘personenddate‘,
                        vtype: ‘daterange‘

                    }, {
                        id: ‘personenddate‘,
                        xtype: ‘datefield‘,
                        width: 150,
                        maxValue: new Date(),
                        margins: ‘0 0 0 6‘,
                        labelWidth: 20,
                        fieldLabel: ‘至‘,
                        format: ‘Y-m-d‘,
                        startDateField: ‘personstartdate‘,
                        vtype: ‘daterange‘
                    }