C# JSON.net populate DataGridView

Question

我想填充一个datagridview (dgvNachrichten)。

它有两列("Datum"one_answers"Nachrichten")。

这是我的代码:

try
{
    WebClient webClient = new WebClient();
    webClient.DownloadFile(Config.URL_MAIN, @Environment.GetEnvironmentVariable("TEMP") + "\" + "temp.json");
    StreamReader sr = new StreamReader(@Environment.GetEnvironmentVariable("TEMP") + "\" + "temp.json");
    string line = sr.ReadToEnd();
    var response = line;
    var des = (MyClass)JsonConvert.DeserializeObject(response, typeof(MyClass));
    dgvNachrichten.DataSource = des;
}
catch (Exception ex)
{
    MessageBox.Show(ex.ToString());
}

我的JSON是这样的:

{ "nachrichten": [ { "Nachricht": "text", "Datum": "datum" }, { "Nachricht": "text", "Datum": "datum" }, { "Nachricht": "text", "Datum": "datum" }, { "Nachricht": "text", "Datum": "datum" } ] }

下面是我的Classes:

public class MyClass
{
    public List<Nachrichten_Felder> data { get; set; }
}
public class Nachrichten_Felder
{
    public string Datum { get; set; }
    public string Nachricht { get; set; }
}

下载工作正常，几秒钟后出现GridView表单，但没有内容…在我的JSON中带有"Datum"的部分必须出现在"Datum"列中(对于每个Datum都有一个新行)，对于"Nachrichten"也是如此。

也许有人能帮我一下?

Answer 1

必须将data属性映射到json文件中的值:

public class MyClass
{
    [JsonProperty("nachrichten")]
    public List<Nachrichten_Felder> data { get; set; }
}

也绑定DataGridView到集合:

dgvNachrichten.DataSource = des.data;

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别忘了处理WebClient和StreamReader