From 78a840bd99f5df8dc9221f79a4b640b485667fa2 Mon Sep 17 00:00:00 2001
From: xuna <xunabobby@gmail.com>
Date: Mon, 25 Jul 2022 14:31:33 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E6=97=A0=E6=9E=84=E9=80=A0=E5=87=BD?=
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无构造函数的对象不跟踪（基本上都是dto对象），ISelect的ToList和First对象如果没有空的构造函数，则会在CreateEntityState的时候引发异常
---
 FreeSql.DbContext/DbSet/DbSet.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/FreeSql.DbContext/DbSet/DbSet.cs b/FreeSql.DbContext/DbSet/DbSet.cs
index 50d94c87..7bd16952 100644
--- a/FreeSql.DbContext/DbSet/DbSet.cs
+++ b/FreeSql.DbContext/DbSet/DbSet.cs
@@ -100,6 +100,7 @@ namespace FreeSql
                     if (itemType == typeof(object)) return;
                     if (itemType.FullName.Contains("FreeSqlLazyEntity__")) itemType = itemType.BaseType;
                     if (_db.OrmOriginal.CodeFirst.GetTableByEntity(itemType)?.Primarys.Any() != true) return;
+                    if (itemType.GetConstructor(System.Type.EmptyTypes) == null) return;
                     var dbset = _db.Set(itemType);
                     dbset?.GetType().GetMethod("TrackToList", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(dbset, new object[] { list });
                     return;