diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
index 39333932f..264a8063e 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
@@ -718,6 +718,11 @@ namespace SqlSugar
                 {
                     return db;
                 }
+            } 
+            else if (this.CrossQueryItems!=null&& this.CrossQueryItems.Count>0&&this.CrossQueryItems.ContainsKey(type.FullName)) 
+            {
+                var result= db.Root.GetConnection(this.CrossQueryItems[type.FullName]);
+                return result;
             }
             else
             {
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index 9425a273d..d94a4e5bd 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -57,6 +57,12 @@ namespace SqlSugar
         }
         public ISugarQueryable<T> CrossQuery(Type type, string configId)
         {
+            if (this.QueryBuilder.CrossQueryItems == null) 
+            {
+                this.QueryBuilder.CrossQueryItems = new Dictionary<string, string>();
+            }
+            if(!this.QueryBuilder.CrossQueryItems.ContainsKey(type.FullName))
+               this.QueryBuilder.CrossQueryItems.Add(type.FullName, configId);
             return this;
         }
         public ISugarQueryable<T> IncludeLeftJoin(Expression<Func<T, object>> LeftObject)