Question

我有一个返回列表的网络服务。

[WebInvoke(Method = "POST", UriTemplate = "GetBatchList", RequestFormat = WebMessageFormat.Xml)]
public List<Batch> GetBatchList()
{        
List<Batch> listBatches = null;

    try
    {
        listBatches = api.GetBatchList();
    }
    catch
    {
        return null;
    }

    return listBatches;
}

其中

public class Batch
{
    public string BatchName { get; set; }
    public List<MAASUsers> Users { get; set; }
}

public class MAASUsers
{
    public string firstName { get; set; }
    public string lastName { get; set; }
    public string sourceEmail { get; set; }
    public int sourceTenantID { get; set; }
    public string targetEmail { get; set; }
    public int targetTenantID { get; set; }
    public string migrationStatus { get; set; }
}

在应用程序的客户端，我无法正确获取内容。我如何使用Web服务响应。

我试图解决这个问题：datacontractserializer deserialize list<> always empty 我还试过下面的另一个解决方案。但是，对于这两种解决方案，我都无法检索列表：列出用户

// Call the webservice, then read the respons
[...]
using (var response = request.GetResponse())
{
    DataSet dsTable = new DataSet();
    dsTable.ReadXml(response.GetResponseStream(), XmlReadMode.Auto);
    if (dsTable.Tables.Count > 0)
    {
        table = dsTable.Tables[0];
    }
}

if (table.Rows.Count > 0)
{
    list = (from DataRow row in table.Rows
      select new Batch
      {
           BatchName = row["BatchName"].ToString()
           /////// But here how do I get List<MAASUsers> Users? 
           /////// the content is returned in dsTable.Tables[1]
           /////// and I don't see any "joining key" ???
      }).ToList();
}

请注意，webservice已正确发送了List的内容（请参阅datacontractserializer deserialize list<> always empty以获取返回的示例XML）

Answer 1

有一个关系表。数据集会自动添加它们，并为每一行添加“Class”_ID，以促进表之间的关系。请参阅下文如何使用它。

using (var response = request.GetResponse())
{
    DataSet dsTable = new DataSet();
    dsTable.ReadXml(response.GetResponseStream(), XmlReadMode.Auto); 
    lstMaasBatches= (from DataRow row in dsTable.Tables[0].Rows
                select new MAASBatch
                {
                    BatchName = row["BatchName"].ToString(),
                    BatchId = Convert.ToInt32(row["MAASBatch_Id"].ToString())                        
                }).ToList();

    foreach (MAASBatch batch in lstMaasBatches)
    {
        int batchID = batch.BatchId;
        List<MAASUsers> lst = (from DataRow row in dsTable.Tables[2].Rows
                                           where row.Field<int>("Users_Id") == batchID 
                     select new MAASUsers
                     {
                         ID = Convert.ToInt32(row["ID"].ToString()),
                         firstName = Convert.ToString(row["FirstName"].ToString()),
                         lastName = Convert.ToString(row["LastName"].ToString()),
                         migrationStatus = row["migrationStatus"].ToString(),
                         sourceEmail = Convert.ToString(row["SourceEmail"].ToString()),
                         sourceAgentID = Convert.ToInt32(row["sourceTenantID"].ToString()),
                         targetEmail = Convert.ToString(row["TargetEmail"].ToString()),
                         targetAgentID = Convert.ToInt32(row["targetTenantID"].ToString()),
                     }).ToList();
                    batch.Users = lst;
                }                   
     }
}

无法从webservice </myclass>中读取List <myclass>

1 个答案: