无法将动态 Table 实体转换为自定义实体 Azure Table 存储

Question

我正在尝试根据分区键和行键替换我 table 上的一个实体，成功检索到该实体，但是当我尝试转换它时，它会抛出无效转换异常。我查看了 MSDN 文档，这是删除的正确方法，甚至确保遵循创建实体的指南

Entity properties you'd like to store in a table must be public properties of the type, and support both getting and setting of values. Also, your entity type must expose a parameter-less constructor

这是我的class

    public class BasicAsset : TableEntity
{
    public BasicAsset()
    {
    }

    public BasicAsset(string name)
    {
        Name = name;
    }


    [IsFilterable, IsSortable, IsSearchable]
    public string Name { get; set; }

    [IsFilterable, IsSortable]
    public int Version { get; set; }
}

这是我在异常点的代码

TableOperation retreiveOperation = TableOperation.Retrieve("Orginization", result.Results[0].Document.RowKey);
TableResult toDelete = await table.ExecuteAsync(retreiveOperation);
BasicAsset toReplaceAsset = (BasicAsset) toDelete.Result;
//Change what is new here
toReplaceAsset.Version = asset.Version;
TableOperation replaceOperation = TableOperation.Replace(toReplaceAsset);

错误

   e = {System.InvalidCastException: Unable to cast object of type 'Microsoft.WindowsAzure.Storage.Table.DynamicTableEntity' to type 'AssetSynch.Models.BasicAsset'.
   at AssetSynch.Controllers.TableStorageViewFunctions.<>c__DisplayClass0_0.<<UpdateLattestAssetVe...

我在这里错过了什么？

Answer 1

而不是 Retrieve 尝试使用 Retrieve<BasicAsset>，或者您可以简单地调用 ExecuteQuery<BasicAsset>

无法将动态 Table 实体转换为自定义实体 Azure Table 存储

Failed to cast Dynamic Table entity to custom Entity Azure Table storage

c#

azure

azure-table-storage