JSON到DataTable

时间:2011-04-14 07:08:37

标签: c# json

我正在尝试将JSON文本序列化为DataTable,如下所示。

List<Dictionary<string, string>> list = 
JsonConvert.DeserializeObject<List<Dictionary<string, string>>>(jsonText);
DataTable dTable;
dTable = (from p in list select p).CopyToDataTable();

我收到以下错误。我该如何解决?

错误:

Cannot deserialize JSON object into type 
'System.Collections.Generic.List`1[System.Collections.Generic.Dictionary`2
[System.String,System.String]]'.

2 个答案:

答案 0 :(得分:6)

这对我有用:

using Newtonsoft.Json;

string json = "[{"clientID":"1788","projectID":"19"},{"clientID":"1789","projectID":"24"},{"clientID":"1790","projectID":"24"},{"clientID":"1790","projectID":"23"},{"clientID":"1790","projectID":"21"}]";

DataTable tester = (DataTable) JsonConvert.DeserializeObject(json, (typeof(DataTable)));

答案 1 :(得分:1)

public object Deserialize(string jsonText, Type valueType)
{
    try
    {
        Newtonsoft.Json.JsonSerializer json = new Newtonsoft.Json.JsonSerializer();

        json.NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore;
        json.ObjectCreationHandling = Newtonsoft.Json.ObjectCreationHandling.Replace;
        json.MissingMemberHandling = Newtonsoft.Json.MissingMemberHandling.Ignore;
        json.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;

        StringReader sr = new StringReader(jsonText);

        Newtonsoft.Json.JsonTextReader reader = new JsonTextReader(sr);
        object result = json.Deserialize(reader, valueType);
        reader.Close();
        return result;
    }
    catch (Exception ex)
    {
        throw ex;
    }


}