how to convert json element to boolean or bool

Question

how to convert the json object Summary and Expanded to bool

 

below is the expected result

 

"ID": 7,

"Title": "Software validation, research and implementation",

"ParentID": null,

"OrderID": 0,

"Start": "Date(1401667200000)",

"End": "Date(1405123200000)",

"PercentComplete": 0.43,

"Summary": true,

"Expanded": true

}, {

"ID": 11,

"Title": "Research",

"ParentID": 7,

"OrderID": 1,

"Start": "Date(1401667200000)",

"End": "Date(1402099200000)",

"PercentComplete": 0.43,

"Summary": true,

"Expanded": true

}, {

"ID": 12,

"Title": "Design",

"ParentID": 7,

"OrderID": 2,

"Start": "Date(1402272000000)",

"End": "Date(1402704000000)",

"PercentComplete": 0.60,

"Summary": true,

"Expanded": true

}

 

 

the actual output json is below

 

"ID": 7,

"Title": "Software validation, research and implementation",

"ParentID": null,

"OrderID": 0,

"Start": "Date(1401667200000)",

"End": "Date(1405123200000)",

"PercentComplete": 0.43,

"Summary": "true",

"Expanded": "true"

}, {

"ID": 11,

"Title": "Research",

"ParentID": 7,

"OrderID": 1,

"Start": "Date(1401667200000)",

"End": "Date(1402099200000)",

"PercentComplete": 0.43,

"Summary":"true",

"Expanded":"true"

}, {

"ID": 12,

"Title": "Design",

"ParentID": 7,

"OrderID": 2,

"Start": "Date(1402272000000)",

"End": "Date(1402704000000)",

"PercentComplete": 0.60,

"Summary": "true",

"Expanded":"true"

},