我有一个带有4列的DataTable. (ID,TestName,TestResult,IsValidRequest).我想转换TestName& Testresult成json.

string json = Newtonsoft.Json.JsonConvert.SerializeObject(dt);

变量’json’中的当前JSON：

[  
   {  
      "TestID":1,
      "TestName":"wifi_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":7,
      "TestName":"mic_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":8,
      "TestName":"video_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":12,
      "TestName":"touch_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":14,
      "TestName":"proximity_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":15,
      "TestName":"vibrator_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":20,
      "TestName":"power_key",
      "TestResult":"2",
      "IsValidRequest":1
   },
   {  
      "TestID":21,
      "TestName":"accelerometer",
      "TestResult":"0",
      "IsValidRequest":1
   },
   {  
      "TestID":22,
      "TestName":"earphone",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":11,
      "TestName":"memory_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":29,
      "TestName":"memory_internalSD",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":30,
      "TestName":"memory_internalSDSize",
      "TestResult":"25.0GB",
      "IsValidRequest":1
   },
   {  
      "TestID":31,
      "TestName":"memory_externalSD",
      "TestResult":"0",
      "IsValidRequest":1
   },
   {  
      "TestID":32,
      "TestName":"memory_externalSDSize",
      "TestResult":"",
      "IsValidRequest":1
   },
   {  
      "TestID":33,
      "TestName":"memory_internalflash",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":34,
      "TestName":"memory_internalflashSize",
      "TestResult":"2.0GB",
      "IsValidRequest":1
   },
   {  
      "TestID":35,
      "TestName":"memory_ram",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":36,
      "TestName":"memory_ramsize",
      "TestResult":"2.0GB",
      "IsValidRequest":1
   },
   {  
      "TestID":13,
      "TestName":"lcd_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":28,
      "TestName":"lcd_broken",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":37,
      "TestName":"key_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":16,
      "TestName":"vol_key_up",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":17,
      "TestName":"vol_key_down",
      "TestResult":"0",
      "IsValidRequest":1
   },
   {  
      "TestID":18,
      "TestName":"menu_key",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":10,
      "TestName":"headset_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":38,
      "TestName":"headset_leftearphone",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":39,
      "TestName":"headset_rightearphone",
      "TestResult":"0",
      "IsValidRequest":1
   },
   {  
      "TestID":27,
      "TestName":"camera_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":40,
      "TestName":"camera_cameracount",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":5,
      "TestName":"camera_frontcam",
      "TestResult":"0",
      "IsValidRequest":1
   },
   {  
      "TestID":6,
      "TestName":"camera_backcam",
      "TestResult":"0",
      "IsValidRequest":1
   },
   {  
      "TestID":2,
      "TestName":"battery_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":45,
      "TestName":"battery_type",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":41,
      "TestName":"battery_level",
      "TestResult":"83",
      "IsValidRequest":1
   },
   {  
      "TestID":42,
      "TestName":"battery_status",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":43,
      "TestName":"battery_voltage",
      "TestResult":"4204",
      "IsValidRequest":1
   },
   {  
      "TestID":44,
      "TestName":"battery_temperature",
      "TestResult":"310",
      "IsValidRequest":1
   },
   {  
      "TestID":3,
      "TestName":"battery_accharging",
      "TestResult":"0",
      "IsValidRequest":1
   },
   {  
      "TestID":4,
      "TestName":"battery_usbcharging",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":9,
      "TestName":"audio_result",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":19,
      "TestName":"home_key",
      "TestResult":"1",
      "IsValidRequest":1
   },
   {  
      "TestID":46,
      "TestName":"back_key",
      "TestResult":"1",
      "IsValidRequest":1
   }
]

必需的JSON：

{  
   "wifi_result":"1",
   "mic_result":"1",
   "video_result":"1",
   "touch_result":"1",
   "proximity_result":"1",
   "vibrator_result":"1",
   "power_key":"2",
   "accelerometer":"0",
   "earphone":"1",
   "memory_result":"1",
   "memory_internalSD":"1",
   "memory_internalSDSize":"25.0GB",
   "memory_externalSD":"0",
   "memory_externalSDSize":"",
   "memory_internalflash":"1",
   "memory_internalflashSize":"2.0GB",
   "memory_ram":"1",
   "memory_ramsize":"2.0GB",
   "lcd_result":"1",
   "lcd_broken":"1",
   "key_result":"1",
   "vol_key_up":"1",
   "vol_key_down":"0",
   "menu_key":"1",
   "headset_result":"1",
   "headset_leftearphone":"1",
   "headset_rightearphone":"0",
   "camera_result":"1",
   "camera_cameracount":"1",
   "camera_frontcam":"0",
   "camera_backcam":"0",
   "battery_result":"1",
   "battery_type":"1",
   "battery_level":"83",
   "battery_status":"1",
   "battery_voltage":"4204",
   "battery_temperature":"310",
   "battery_accharging":"0",
   "battery_usbcharging":"1",
   "audio_result":"1",
   "home_key":"1",
   "back_key":"1"
}

请提出任何解决方案？

解决方法:

首先将DataTable转换为Dictionary,然后序列化为json.

Dictionary<string, string> dict = 
    dt.AsEnumerable()
    .ToDictionary<DataRow, string, string>(row => row.Field<string>(1),
                                           row => row.Field<string>(2));

string json = Newtonsoft.Json.JsonConvert.SerializeObject(dict);