從asp.net c中提取json數據＃

我想從json中提取一些數據。我一直在JSS或Json.net上尋找解決方案，但一直無法解決這個問題。這是我的Json的樣子：注：我已經測試過，測繪和分散工作！我正在尋找一種方法來從json中提取特定的數據！從asp.net c中提取json數據＃

在此先感謝！

{ 
"tasks":[ 
    { 
    "id":"tmp_fk1345624806538", 
    "name":"Gantt editor ", 
    "code":"", 
    "level":0, 
    "status":"STATUS_ACTIVE", 
    "start":1346623200000, 
    "duration":5, 
    "end":1347055199999, 
    "startIsMilestone":false, 
    "endIsMilestone":false, 
    "assigs":[ 
     { 
     "resourceId":"tmp_3", 
     "id":"tmp_1345625008213", 
     "roleId":"tmp_1", 
     "effort":7200000 
     } 
    ], 
    "depends":"", 
    "description":"", 
    "progress":0 
    }, 
    { 
    "id":"tmp_fk1345624806539", 
    "name":"phase 1", 
    "code":"", 
    "level":1, 
    "status":"STATUS_ACTIVE", 
    "start":1346623200000, 
    "duration":2, 
    "end":1346795999999, 
    "startIsMilestone":false, 
    "endIsMilestone":false, 
    "assigs":[ 
     { 
     "resourceId":"tmp_1", 
     "id":"tmp_1345624980735", 
     "roleId":"tmp_1", 
     "effort":36000000 
     } 
    ], 
    "depends":"", 
    "description":"", 
    "progress":0 
    }, 
    { 
    "id":"tmp_fk1345624789530", 
    "name":"phase 2", 
    "code":"", 
    "level":1, 
    "status":"STATUS_SUSPENDED", 
    "start":1346796000000, 
    "duration":3, 
    "end":1347055199999, 
    "startIsMilestone":false, 
    "endIsMilestone":false, 
    "assigs":[ 
     { 
     "resourceId":"tmp_2", 
     "id":"tmp_1345624993405", 
     "roleId":"tmp_2", 
     "effort":36000000 
     } 
    ], 
    "depends":"2", 
    "description":"", 
    "progress":0 
    } 
], 
"resources":[ 
    { 
    "id":"tmp_1", 
    "name":"Resource 1" 
    }, 
    { 
    "id":"tmp_2", 
    "name":"Resource 2" 
    }, 
    { 
    "id":"tmp_3", 
    "name":"Resource 3" 
    } 
],"roles":[ 
{ 
    "id":"tmp_1", 
    "name":"Project Manager" 
}, 
{ 
    "id":"tmp_2", 
    "name":"Worker" 
} 
], 
"canWrite":true, 
"canWriteOnParent":true, 
"selectedRow":0, 
"deletedTaskIds":[], 
}

我已經映射爲遵循

public class Rootobject 
{ 
    public Task[] tasks { get; set; } 
    public Resource[] resources { get; set; } 
    public Role[] roles { get; set; } 
    public bool canWrite { get; set; } 
    public bool canWriteOnParent { get; set; } 
    public int selectedRow { get; set; } 
    public object[] deletedTaskIds { get; set; } 
} 

public class Task 
{ 
    public string id { get; set; } 
    public string name { get; set; } 
    public string code { get; set; } 
    public int level { get; set; } 
    public string status { get; set; } 
    public long start { get; set; } 
    public int duration { get; set; } 
    public long end { get; set; } 
    public bool startIsMilestone { get; set; } 
    public bool endIsMilestone { get; set; } 
    public Assig[] assigs { get; set; } 
    public string depends { get; set; } 
    public string description { get; set; } 
    public int progress { get; set; } 
} 

public class Assig 
{ 
    public string resourceId { get; set; } 
    public string id { get; set; } 
    public string roleId { get; set; } 
    public int effort { get; set; } 
} 

public class Resource 
{ 
    public string id { get; set; } 
    public string name { get; set; } 
} 

public class Role 
{ 
    public string id { get; set; } 
    public string name { get; set; } 
}

，我需要提取以下從我的JSON信息（從5月JSON特定任務，例如第一個id爲：tmp_fk1345624806538）。。注：我得到我的JSON從JSON文件如下：

string startDate; // this is what i need to extract 
string endDate; // this is what i need to extract 
string Progress; // this is what i need to extract 

public void load() 
{ 
    GC.GClass l = new GC.GClass(); 
    string jsonString = l.load(); // i get my json from a json file 

    Rootobject project = JsonConvert.DeserializeObject<Rootobject>(jsonString); 

}

來源

2013-08-07 Poorya

您可以使用LINQ快速查詢的對象。

Task task = project.tasks.FirstOrDefault(t=> t.id == "tmp_fk1345624806538");

測試任務，如果爲null，則表示沒有與id匹配的任務。如果你確定會有匹配的任務，你可以使用.First（），但是如果列表中沒有匹配，它會拋出一個異常。

你需要添加一個using System.Linq;如果你還沒有。

來源

2013-08-07 04:57:15

從asp.net c中提取json數據＃

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