Azure 表存储 - 尝试 GetEntity 返回错误消息 CS0311

Question

我有以下方法：

   public async Task<Boolean> MarkAsProvisioned( string requestId)            
    {           
        try
        {
            //populate the connection object: 
             GetStorageAccountConnectionData();
            //lookup the record we need to change by the requestId.  
            var serviceClient = new TableServiceClient(
                new Uri(connection.storageUri),
                new TableSharedKeyCredential(connection.storageAccountName, connection.storageAccountKey));
            var tableClient = serviceClient.GetTableClient(connection.tableName);
            Azure.Response<Widget> response = tableClient.GetEntity<Widget>(
                                "mypartitionKey",
                                requestId);
            Widget entity = response;
            
            return true;

        } 
        catch (Exception ex)
        {
            Console.Write(ex.Message);
            return false;
        }
    }

我在调用 GetEntity() 的行上收到错误。错误是：

类型“MyProject.Models.Widget”不能用作通用类型或方法“TableClient.GetEntity(string, string, IEnumerable, CancellationToken)”中的类型参数“T”。没有从“MyProject.Models.Widget”到“Azure.Data.Tables.ITableEntity”的隐式引用转换。csharp(CS0311)

我正在尝试做这样的事情：（伪代码）

Widget entity = table.GetEntity<Widget >(partitionKey, rowKey);
entity.Name = newMessage;

table.UpdateEntity(entity, ETag.All, TableUpdateMode.Replace);

我看不到我在哪里出了问题。

编辑 1

这是旧类，

using Newtonsoft.Json;
using System;

namespace MyProject.Models
{

    public class Widget
  {
    

    [JsonProperty(PropertyName = "requestId")]
     public string requestId { get; set; }

    [JsonProperty(PropertyName = "status")]
    public string status { get; set; }

    [JsonProperty(PropertyName = "request")]
    public WidgetRequest { get; set; }
  }

这是新类：

using Newtonsoft.Json;
using Azure.Data.Tables;
using System;
using Azure;

namespace MyProject.Models
{

    public class Widget:ITableEntity
  {
    public string PartitionKey { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
    public string RowKey { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
    public DateTimeOffset? Timestamp { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
    public ETag ETag { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }

    [JsonProperty(PropertyName = "requestId")]
     public string requestId { get; set; }

    [JsonProperty(PropertyName = "status")]
    public string status { get; set; }

    [JsonProperty(PropertyName = "request")]
    public WidgetRequest { get; set; }
  }

Answer 1

在Widget类中添加ITableEntity接口来解决问题

using Newtonsoft.Json;
using Azure.Data.Tables;
using System;
using Azure;
namespace MyProject.Models
{
public class Widget:ITableEntity
{
public string PartitionKey { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
public string RowKey { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
public DateTimeOffset? Timestamp { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
public ETag ETag { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
[JsonProperty(PropertyName = "requestId")]
public string requestId { get; set; }
[JsonProperty(PropertyName = "status")]
public string status { get; set; }
[JsonProperty(PropertyName = "request")]
public WidgetRequest { get; set; }
}