Error when render Visualforce page to excel

Question

i have vf pages that will render as excel file. the data source is from custom controller. the query return in pages is correct

but after the data displayed in table, the page also generate like an error message:

[{"displayName": "PrintTimesheet","name": "PrintTimesheet","viewstateSize": 4.42,"percentOfParent": 100.0,"percentOfTotalViewstate": 100.0,"leaf": false,"isGroupable": false,"identityCode": "bd54f935a71a96e8041db78385ec61e2","children": [{"displayName": "Component Tree","name": "Component Tree","viewstateSize": 0.44,"percentOfParent": 10.0,"percentOfTotalViewstate": 10.0,"leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "3f49c4e4fbf91b1848840255adb239d1"},{"displayName": "State","name": "State","viewstateSize": 4.13,"percentOfParent": 93.0,"percentOfTotalViewstate": 93.0,"leaf": false,"isGroupable": false,"identityCode": "d80c09f6c50cf97f2876eb21a2ecec27","children": [{"displayName": "Expressions","name": "Expressions","viewstateSize": 0.77,"percentOfParent": 19.0,"percentOfTotalViewstate": 17.0,"leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "6521e758750cd97456ee87ea83dfa024"},{"displayName": "Controllers","name": "Controllers","viewstateSize": 1.19,"percentOfParent": 29.0,"percentOfTotalViewstate": 27.0,"leaf": false,"isGroupable": false,"identityCode": "1ae68016a94c8a724fdaf48ca6478531","children": [{"displayName": "TimesheetForAdminController","name": "TimesheetForAdminController","type": "Page printtimesheet Controller","viewstateSize": 1.19,"percentOfParent": 100.0,"percentOfTotalViewstate": 27.0,"leaf": false,"iconCls": "task","isGroupable": false,"identityCode": "6786a464e15996b8ebf96b161325cbfe","children": [{"displayName": "EmployeeName","name": "EmployeeName","type": "String","viewstateSize": 0.05,"percentOfParent": 4.0,"percentOfTotalViewstate": 1.0,"value": "bri","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "84df0fe02f47b043ef2a2e0a87ef477a"},{"displayName": "EndDate","name": "EndDate","type": "String","viewstateSize": 0.05,"percentOfParent": 4.0,"percentOfTotalViewstate": 1.0,"value": "","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "881cca0e8af585a6a416c316f062f540"},{"displayName": "StartDate","name": "StartDate","type": "String","viewstateSize": 0.05,"percentOfParent": 4.0,"percentOfTotalViewstate": 1.0,"value": "","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "d036f268ff5fb34bde16d42342bb7b96"},{"displayName": "ts [1]","name": "ts","type": "LIST","viewstateSize": 0.8,"percentOfParent": 67.0,"percentOfTotalViewstate": 18.0,"leaf": false,"isGroupable": true,"identityCode": "6477e7b19026d8e88186bf38d7f63073","children": [{"displayName": "0","name": "0","type": "Timesheet__c","viewstateSize": 0.64,"percentOfParent": 80.0,"percentOfTotalViewstate": 14.0,"leaf": false,"iconCls": "task","isGroupable": false,"identityCode": "f5c71efd2825940713aeb4f5885f01bb","children": [{"displayName": "Employee_Name__c","name": "Employee_Name__c","type": "String","viewstateSize": 0.11,"percentOfParent": 17.0,"percentOfTotalViewstate": 2.0,"value": "a05N0000002emCfIAI","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "15bd238dcf2e9af2ca363fac4b7094ef"},{"displayName": "Transport_Type__c","name": "Transport_Type__c","type": "String","viewstateSize": 0.11,"percentOfParent": 17.0,"percentOfTotalViewstate": 2.0,"value": "Return Trip","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "376f7572bcfc6e933fcdbbcdb21950ec"},{"displayName": "Project_Allowance_IDR__c","name": "Project_Allowance_IDR__c","type": "String","viewstateSize": 0.17,"percentOfParent": 27.0,"percentOfTotalViewstate": 4.0,"value": "40000.00","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "ff952400966d21d52fa3e4a48fba34ce"},{"displayName": "Project_Name__r","name": "Project_Name__r","type": "String","viewstateSize": 0.31,"percentOfParent": 48.0,"percentOfTotalViewstate": 7.0,"value": "Project__c:{Name=Phincon - Imp...","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "fcef87ecb5ff55c6d01e71513d9ca84d"},{"displayName": "Timesheet_End_DateTime__c","name": "Timesheet_End_DateTime__c","type": "String","viewstateSize": 0.13,"percentOfParent": 20.0,"percentOfTotalViewstate": 3.0,"value": "Wed Oct 22 10:00:00 GMT 2014","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "c3e7a1b7ddbdbefcd3be6938c930cc72"},{"displayName": "Timesheet_Start_DateTime__c","name": "Timesheet_Start_DateTime__c","type": "String","viewstateSize": 0.13,"percentOfParent": 20.0,"percentOfTotalViewstate": 3.0,"value": "Wed Oct 22 01:00:00 GMT 2014","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "282806a2ff4b18db9d99d54e2445c75c"},{"displayName": "Activity__c","name": "Activity__c","type": "String","viewstateSize": 0.09,"percentOfParent": 14.0,"percentOfTotalViewstate": 2.0,"value": "Testing","leaf": true,"iconCls": "task","isGroupable": false,"identityCode": "9244277a2aabd301f26ebb9398ed8617"},{"displayName": "Employee_Name__r","name": "Employee_Name__r","type": "String","viewstateSize": 0.28,"percentOfParent": 44.0,"percentOfTotalViewstate": 6.0,"value": "Employee__c:{Name=Brian, Id=a0...","leaf": true,"iconCls": "task",&quot..

this happened in or company production sandbox. wen i tried create a same vf page in my developer edition org, the message is not generated. how to fix this ? please help

regards,

Willy Chiandra

Answer 1

Theres not a lot of detail here, but the data structure you have here represents the developer mode/viewstate data that we get when developing visualforce when we have the developer mode turned on.

I would suggest you turn off/uncheck these items on your user record for the sandbox environment.