使用第三方API数据源绑定数据网格

Question

我正在使用C# 4.5。我创建了一个Windows应用程序。

根据项目要求，我需要绑定一个第三方api响应，将json对象数组返回到datagrid。

我使用RestClient和取出的数据已经转换他们使用JDynamic包作为

IRestResponse response = client.Execute(request);     
dynamic result = new JDynamic(response.Content); 

到对象是否有我可以结合该数组的对象作为gridview的的一个数据源的任何技术？

另外，如果我只需要显示某些列，该怎么办？

编辑：

---

的JSON的反应是一样的东西：

[ 
    { 
     "id": 7, 
     "username": "pthakur@abc.com", 
     "first_name": "Carlos", 
     "middle_name": "", 
     "last_name": "Alaiz", 
     "gender": "male", 
     "addr1": "", 
     "addr2": "", 
     "state": "", 
     "city": "", 
     "country": "", 
     "post_code": "", 
     "email_id": "pthakur@abcd.com", 
     "email_id_alt": "", 
     "phone1": "1800777333", 
     "phone2": "", 
     "photo": "2015-09-09-17-14-29-2015-01-22-06-26-15-400-don-passport-lighting-test 044-3-100pc_pp-ps.jpg", 
     "populations": [{ 
      "id": 8, 
      "population_name": "Pop 8" 
     }] 
    }, 
    { 
     "id": 8, 
     "username": "shailesh.lakum@abc.com", 
     "first_name": "Pedro", 
     "middle_name": "", 
     "last_name": "Montero", 
     "gender": "male", 
     "addr1": "", 
     "addr2": "", 
     "state": "", 
     "city": "", 
     "country": "", 
     "post_code": "", 
     "email_id": "pedro@spam4.me", 
     "email_id_alt": "", 
     "phone1": "1800999222", 
     "phone2": "", 
     "photo": "2015-09-09-17-13-40-2014-10-27-06-59-56-bilde.jpeg", 
     "populations": [{ 
      "id": 8, 
      "population_name": "Pop 8" 
     }] 
    }, 
    { 
     "id": 9, 
     "username": "mario@abcd.com", 
     "first_name": "Mario", 
     "middle_name": "", 
     "last_name": "Sanz", 
     "gender": "male", 
     "addr1": "", 
     "addr2": "", 
     "state": "", 
     "city": "", 
     "country": "", 
     "post_code": "", 
     "email_id": "mario@xyz.com", 
     "email_id_alt": "", 
     "phone1": "1800288299", 
     "phone2": "", 
     "photo": "2015-09-09-17-13-17-2014-10-27-06-28-30-Jim-Smith.jpg", 
     "populations": [{ 
      "id": 7, 
      "population_name": "Pop 7" 
     }] 
    }, 
    { 
     "id": 10, 
     "username": "pthakur@xyz.com", 
     "first_name": "Parikshit", 
     "middle_name": "", 
     "last_name": "Thakur", 
     "gender": "male", 
     "addr1": "", 
     "addr2": "", 
     "state": "", 
     "city": "", 
     "country": "", 
     "post_code": "", 
     "email_id": "pthakur1@xyz.com", 
     "email_id_alt": "", 
     "phone1": "1800299200", 
     "phone2": "", 
     "photo": "2015-09-10-11-52-05-parikshit.jpg", 
     "populations": [{ 
      "id": 8, 
      "population_name": "Pop 8" 
     }] 
    }, 
    { 
     "id": 11, 
     "username": "nidhi.patel1234@xyz.com", 
     "first_name": "Nidhi ", 
     "middle_name": "", 
     "last_name": "Patel", 
     "gender": "female", 
     "addr1": "", 
     "addr2": "", 
     "state": "", 
     "city": "", 
     "country": "", 
     "post_code": "", 
     "email_id": "nidhi@spam4.me", 
     "email_id_alt": "", 
     "phone1": "1800200300", 
     "phone2": "", 
     "photo": "female.jpg", 
     "populations": [] 
    } 
] 

我创建了一个新的类就如下图所示：现在

namespace DemoAutoLogin 
{ 
    public class patient 
    { 
     public int id { get; set; } 
     public string username { get; set; } 
     public string first_name { get; set; } 
     public string middle_name { get; set; } 
     public string last_name { get; set; } 
     public string gender { get; set; } 
     public string addr1 { get; set; } 
     public string addr2 { get; set; } 
     public string state { get; set; } 
     public string city { get; set; } 
     public string country { get; set; } 
     public string post_code { get; set; } 
     public string email_id { get; set; } 
     public string email_id_alt { get; set; } 
     public string phone1 { get; set; } 
     public string phone2 { get; set; } 
     public string photo { get; set; } 
     public List<Population> populations { get; set; } 
    } 

    public class Population 
    { 
     public int id { get; set; } 
     public string population_name { get; set; } 
    } 
} 

，什么我可以在网格视图中显示JSON记录吗？

Answer 1

然后你可以简单地将结果反序列化到IEnumerable<patient>。使用Json.NET来做到这一点。您可以绑定到网格IEnumerable<patient>。

public void BindMyData() 
{ 
    IEnumerable<patient> patients = JsonConvert.DeserializeObject<IEnumerable<patient>>(resultAsJson); 
    datagrid.DataSource = patients; 
} 

应该以这种方式工作..

，如果你没有一个POCO：

public void BindMyData() 
{ 
    IEnumerable<Dictionary<string, object>> patients = JsonConvert.DeserializeObject<List<Dictionary<string, object>>>(resultAsString); 
    // if this works, i'm not sure: 
    datagrid.DataSource = patients; 
} 

，如果你不能斌的IEnumerable<Dictionary<string, object>>到网格，你也许可以绑定数据表。 添加此ToDataTable扩展：

public static class Exts 
{ 
    public static DataTable ToDataTable(this IEnumerable<Dictionary<string, object>> list) 
    { 
     DataTable result = new DataTable(); 
     if (!list.Any()) 
      return result; 

     var columnNames = list.SelectMany(dict => dict.Keys).Distinct(); 
     result.Columns.AddRange(columnNames.Select(c => new DataColumn(c)).ToArray()); 
     foreach (var item in list) 
     { 
      var row = result.NewRow(); 
      foreach (var key in item.Keys) 
       row[key] = item[key]; 

      result.Rows.Add(row); 
     } 

     return result; 
    } 

} 

然后将它绑定这样：

public void BindMyData() 
{ 
    IEnumerable<Dictionary<string, object>> patients = JsonConvert.DeserializeObject<List<Dictionary<string, object>>>(resultAsString); 
    datagrid.DataSource = patients.ToDataTable(); 
}