我正在为现有数据库创建EF7映射,并且我收到“无效列名”错误。抛出错误的代码是:
public class DepositContext : DbContext
{
public DbSet<tblBatch> Batches { get; set; }
public DbSet<tblTransaction> Transactions { get; set; }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<tblBatch>().HasKey(b => b.BatchID);
modelBuilder.Entity<tblTransaction>().HasKey(t => t.TransactionID);
modelBuilder.Entity<tblBatch>().HasMany(b => b.tblTransactions).WithOne().HasForeignKey(t => t.fBatchID);
}
}
public class tblBatch
{
public int BatchID { get; set; }
public int? fDepositID { get; set; }
public Guid BRN { get; set; }
public string BCN { get; set; }
public decimal? BCT { get; set; }
public string BatchFileName { get; set; }
public List<tblTransaction> tblTransactions { get; set; }
}
public class tblTransaction
{
public int TransactionID { get; set; }
public string TRN { get; set; }
public string TransactionStatus { get; set; }
public int fBatchID { get; set; }
public tblBatch tblBatch { get; set; }
}
这会引发Invalid column name 'tblBatchBatchID1'.
当我使用SQL事件探查器查看发送到数据库的内容时,它是:
exec sp_executesql N'SELECT [t].[TransactionID], [t].[fBatchID], [t].[TRN], [t].[TransactionStatus], [t].[tblBatchBatchID1]
FROM [tblTransaction] AS [t]
INNER JOIN (
SELECT DISTINCT TOP(1) [b].[BatchID]
FROM [tblBatch] AS [b]
WHERE [b].[BatchID] = @__BatchId_0
) AS [b] ON [t].[fBatchID] = [b].[BatchID]
ORDER BY [b].[BatchID]',N'@__BatchId_0 int',@__BatchId_0=37
有人知道如何解决这个问题吗?
答案 0 :(得分:2)
EF RC1中存在一些错误,这些错误在查询生成中产生了错误的列名。请参阅可能与您的问题相关的this list of bugs。
您可以尝试通过显式设置列名来解决此问题。
modelBuilder.Entity<tblBatch>().Property(e => e.BatchID).HasColumnName("BatchID");
如果您有勇气,可以尝试升级到RC Core的RC2夜魇,看看问题是否已解决。