如何从Generic 对象列表

本文关键字：对象 列表 Generic | 更新日期: 2023-09-27 18:17:27

我想创建一个泛型函数，在这个泛型函数中，我将只传递类名，并根据泛型类类型从JSON对象中获取CSV格式的数据。

但是我不能在foreach循环时访问类成员。

public class Lifetouch
{
    public int LifetouchID { get; set; }
    public string Data { get; set; }
}
public class Lifetemp
{
    public int LifetempID { get; set; }
    public string Data { get; set; }
}
main()
{
    getPerodicListofVitalSigns <Lifetouch>(new Lifetouch());
}
public static void getPerodicListofVitalSigns <T>( T clazz)
{
    List<T> list_of_measurements_Original = JsonConvert.DeserializeObject<List<T>>(json_response);
    // Got the list_of_measurements_Original count 2.
    StringBuilder sb = new StringBuilder();
    sb.Append("[");
    foreach (var element in list_of_measurements_Original)
    {
        sb.Append(element.LifetouchID + ", ")  // Not able to access the element of list LifetouchID
    }
    sb.Append("]");
 }

如何从Generic <T>对象列表

我想创建一个泛型函数，在这个泛型函数中，我将传递类名并以基于泛型类类型的JSON对象的CSV格式获取数据(ID)。所有的id将通过webservice并更新数据库。这是必须的。

我想创建泛型函数，我想在其中传递类名作为参数。因此，如果添加了新类，将来我可以很容易地使用该泛型函数。

现在一切正常。

public class Lifetouch
{
    public int LifetouchID { get; set; }
    public string Data { get; set; }
}
public class Lifetemp
{
    public int LifetempID { get; set; }
    public string Data { get; set; }
}
main()
{
    getPerodicListofVitalSigns <Lifetouch>(new Lifetouch());  
    getPerodicListofVitalSigns <Lifetemp>(new Lifetemp());
}
public static void getPerodicListofVitalSigns <T>( T clazz)
{
    List<T> list_of_measurements_Original = JsonConvert.DeserializeObject<List<T>>(json_response);
    // Got the list_of_measurements_Original count 2.
    StringBuilder sb = new StringBuilder();
    sb.Append("[");
    foreach (var element in list_of_measurements_Original)
    {
         if (VitalSignName == "Lifetouch")
                            {
                                var vitalSign = element as Lifetouch;
                                dataString = dataString + (vitalSign.LifetouchID + ",");
                            }
                            else if (VitalSignName == "Lifetemp")
                            {
                                var vitalSign = element as Lifetemp;
                                dataString = dataString + (vitalSign.LifetempID + ",");
                            }
    }
    sb.Append("]");
    string WebserviceAddress = "192..../json/reply/UpdateSyncStatus";
    JSON_POST_Sender.ClassPost(WebserviceAddress, dataString), "true")
 }
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