diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs
index 838252f32..638286b32 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs
@@ -7,112 +7,97 @@ using System.Threading.Tasks;
 
 namespace SqlSugar 
 {
-    public class InsertNavProvider<Root,T> where T : class,new() where Root:class,new()
+    public partial class InsertNavProvider<Root,T> where T : class,new() where Root:class,new()
     {
 
-        public List<Root> Roots { get;  set; }
-        public List<object> ParentList { get; set; }
-        public EntityInfo ParentEntity { get; set; }
-        public SqlSugarProvider Context { get;   set; }
+        public List<Root> _Roots { get;  set; }
+        public List<object> _ParentList { get; set; }
+        public EntityInfo _ParentEntity { get; set; }
+        public SqlSugarProvider _Context { get;   set; }
 
-        public InsertNavProvider<Root,TChild> ThenInclude<TChild>(Expression<Func<T,TChild>> expression) where TChild : class, new()
+
+        public InsertNavProvider<Root, Root> AsNav()
         {
-            if (ParentList == null) 
+            return new InsertNavProvider<Root, Root> { 
+             _Context = _Context,  
+             _ParentEntity = null,
+              _ParentList=null,
+               _Roots= _Roots
+            };
+        }
+
+        public InsertNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T, TChild>> expression) where TChild : class, new()
+        {
+            InitParentList();
+            var name = ExpressionTool.GetMemberName(expression);
+            var nav = this._ParentEntity.Columns.FirstOrDefault(x => x.PropertyName == name);
+            if (nav.Navigat == null)
             {
-                ParentList = GetParentList(Roots).Cast<object>().ToList();
-            }
-            var name=ExpressionTool.GetMemberName(expression);
-            var nav = this.ParentEntity.Columns.FirstOrDefault(x => x.PropertyName == name);
-            if (nav.Navigat == null) 
-            {
-                Check.ExceptionEasy($"{name} no navigate attribute", $"{this.ParentEntity.EntityName}的属性{name}没有导航属性");
+                Check.ExceptionEasy($"{name} no navigate attribute", $"{this._ParentEntity.EntityName}的属性{name}没有导航属性");
             }
             if (nav.Navigat.NavigatType == NavigateType.OneToOne || nav.Navigat.NavigatType == NavigateType.ManyToOne)
             {
-                InsertOneToOne<TChild>(ParentList,this.ParentEntity, name,nav);
+                InsertOneToOne<TChild>(name, nav);
             }
             else if (nav.Navigat.NavigatType == NavigateType.OneToMany)
             {
-                InsertOneToMany();
+                InsertOneToMany<TChild>(name, nav);
             }
-            else 
+            else
             {
-                InsertManyToMany();
+                InsertManyToMany<TChild>(name, nav);
             }
-            return null;
+            return GetResult<TChild>();
         }
-
-        private void InsertManyToMany()
-        {
-             
-        }
-
-        private void InsertOneToMany()
-        {
-       
-        }
-
-        private void InsertOneToOne<TChild>(List<object> parentList, EntityInfo parentEntity, string name, EntityColumnInfo nav)
-        {
-            var parentColumn = parentEntity.Columns.FirstOrDefault(it => it.PropertyName==nav.Navigat.Name);
-            this.ParentEntity = this.Context.EntityMaintenance.GetEntityInfo<TChild>();
-            var pkColumn = ParentEntity.Columns.FirstOrDefault(it=>it.IsPrimarykey==true);
-            if (nav.Navigat.Name2.HasValue()) 
-            {
-                pkColumn = ParentEntity.Columns.FirstOrDefault(it => it.PropertyName==nav.Navigat.Name2);
-            }
-            Check.Exception(pkColumn == null, $" Navigate {parentEntity.EntityName} : {name} is error ", $"导航实体 {parentEntity.EntityName} 属性 {name} 配置错误");
-            List<object> childList = new List<object>();
-            foreach (var parent in parentList) 
-            {
-                var childItems=(TChild)nav.PropertyInfo.GetValue(parent);
-                if (childItems != null)
-                {
-                    var pkValue = pkColumn.PropertyInfo.GetValue(childItems);
-                    var pvValue = parentColumn.PropertyInfo.GetValue(parent);
-                    if (IsDefaultValue(pvValue))
-                    {
-                        pvValue = pkValue;
-                    }
-                    if (IsDefaultValue(pvValue))
-                    {
-                        
-                    }
-                }
-            }
-            parentList = childList;
-        }
-
+ 
         private static bool IsDefaultValue(object pvValue)
         {
             return pvValue == null || pvValue == UtilMethods.GetDefaultValue(pvValue.GetType());
         }
+        private void InitParentList()
+        {
+            if (_ParentList == null)
+            {
+                _ParentList = GetParentList(_Roots).Cast<object>().ToList();
+            }
+        }
+
+        private InsertNavProvider<Root, TChild> GetResult<TChild>() where TChild : class, new()
+        {
+            return new InsertNavProvider<Root, TChild>()
+            {
+                _Context = this._Context,
+                _ParentEntity = this._ParentEntity,
+                _ParentList = this._ParentList,
+                _Roots = this._Roots
+            };
+        }
 
         private List<Type> GetParentList<Type>(List<Type> datas) where Type : class ,new()
         {
             List<Type> result = new List<Type>();
-            this.Context.InitMappingInfo<Type>();
-            var entity = this.Context.EntityMaintenance.GetEntityInfo<Type>();
+            this._Context.InitMappingInfo<Type>();
+            var entity = this._Context.EntityMaintenance.GetEntityInfo<Type>();
             var isIdentity = entity.Columns.Where(it=>it.IsIdentity).Any();
             if (isIdentity)
             {
-                foreach (var item in datas)
-                {
-                    this.Context.Insertable(datas).ExecuteCommandIdentityIntoEntity();
-                }
+                InsertIdentity(datas);
             }
             else 
             {
-                this.Context.Insertable(datas).ExecuteCommand();
+                this._Context.Insertable(datas).ExecuteCommand();
             }
-            this.ParentEntity = entity;
+            this._ParentEntity = entity;
             result = datas;
             return result;
         }
 
-        public InsertNavProvider<Root,Root> AsNav()
+        private void InsertIdentity<Type>(List<Type> datas) where Type : class, new()
         {
-            return null;
+            foreach (var item in datas)
+            {
+                this._Context.Insertable(item).ExecuteCommandIdentityIntoEntity();
+            }
         }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderManyToMany.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderManyToMany.cs
new file mode 100644
index 000000000..09574d7ca
--- /dev/null
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderManyToMany.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+namespace SqlSugar 
+{
+    public partial class InsertNavProvider<Root, T> where T : class, new() where Root : class, new()
+    {
+        private void InsertManyToMany<TChild>(string name, EntityColumnInfo nav) where TChild : class, new()
+        {
+         
+        }
+    }
+}
diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToMany.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToMany.cs
new file mode 100644
index 000000000..4f05b7804
--- /dev/null
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToMany.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+namespace SqlSugar 
+{
+    public partial class InsertNavProvider<Root, T> where T : class, new() where Root : class, new()
+    {
+
+        private void InsertOneToMany<TChild>(string name, EntityColumnInfo nav) where TChild : class, new()
+        {
+            var parentEntity = _ParentEntity;
+            var parentList = _ParentList;
+            var parentColumn = parentEntity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name);
+            this._ParentEntity = this._Context.EntityMaintenance.GetEntityInfo<TChild>();
+            foreach (var item in parentList)
+            {
+
+            }
+        }
+    }
+}
diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToOne.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToOne.cs
new file mode 100644
index 000000000..01364ba64
--- /dev/null
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToOne.cs
@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+namespace SqlSugar 
+{
+    public partial class InsertNavProvider<Root, T> where T : class, new() where Root : class, new()
+    {
+        private void InsertOneToOne<TChild>(string name, EntityColumnInfo nav) where TChild : class, new()
+        {
+            var parentEntity = _ParentEntity;
+            var parentList = _ParentList;
+            var parentColumn = parentEntity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name);
+            this._ParentEntity = this._Context.EntityMaintenance.GetEntityInfo<TChild>();
+            EntityColumnInfo pkColumn = GetOneTwoOneChildPkColumn(nav);
+            Check.Exception(pkColumn == null, $" Navigate {parentEntity.EntityName} : {name} is error ", $"导航实体 {parentEntity.EntityName} 属性 {name} 配置错误");
+            List<TChild> childList = new List<TChild>();
+            foreach (var parent in parentList)
+            {
+                var navPropertyValue = parentColumn.PropertyInfo.GetValue(parent);
+                var childItem = (TChild)nav.PropertyInfo.GetValue(parent);
+                if (childItem != null)
+                {
+                    if (IsDefaultValue(navPropertyValue))
+                    {
+                        var pkValue = pkColumn.PropertyInfo.GetValue(childItem);
+                        if (IsDefaultValue(navPropertyValue))
+                        {
+                            navPropertyValue = pkValue;
+                        }
+                    }
+                    pkColumn.PropertyInfo.SetValue(childItem, navPropertyValue);
+                    childList.Add(childItem);
+                }
+            }
+            var x = this._Context.Storageable(childList).WhereColumns(new string[] { pkColumn.PropertyName }).ToStorage();
+            if (pkColumn.IsIdentity)
+            {
+                InsertIdentity(x.InsertList.Select(it => it.Item).ToList());
+            }
+            else
+            {
+                x.AsInsertable.ExecuteCommand();
+            }
+            this._ParentList = childList.Cast<object>().ToList();
+        }
+
+        private EntityColumnInfo GetOneTwoOneChildPkColumn(EntityColumnInfo nav)
+        {
+            var pkColumn = _ParentEntity.Columns.FirstOrDefault(it => it.IsPrimarykey == true);
+            if (nav.Navigat.Name2.HasValue())
+            {
+                pkColumn = _ParentEntity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name2);
+            }
+
+            return pkColumn;
+        }
+
+    }
+}
diff --git a/Src/Asp.Net/SqlSugar/Abstract/SaveableProvider/Storageable.cs b/Src/Asp.Net/SqlSugar/Abstract/SaveableProvider/Storageable.cs
index 2a33f1bd5..6fc5b1447 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/SaveableProvider/Storageable.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/SaveableProvider/Storageable.cs
@@ -296,7 +296,7 @@ namespace SqlSugar
 
         public IStorageable<T> WhereColumns(string [] columns) 
         {
-            var list = columns.Select(it=>this.Context.EntityMaintenance.GetDbColumnName<T>(it)).ToList();
+            var list = columns.Select(it=>this.Context.EntityMaintenance.GetPropertyName<T>(it)).ToList();
             var exp=ExpressionBuilderHelper.CreateNewFields<T>(this.Context.EntityMaintenance.GetEntityInfo<T>(), list);
             return this.WhereColumns(exp);
         }
diff --git a/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
index 52add15bc..aa9ce39d2 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
@@ -897,8 +897,8 @@ namespace SqlSugar
         public InsertNavProvider<T, T> InsertNav<T>(List<T> datas) where T : class, new()
         {
             var result = new InsertNavProvider<T, T>();
-            result.Roots = datas;
-            result.Context = this;
+            result._Roots = datas;
+            result._Context = this;
             return result;
         }
         public DeleteNavProvider<T, T> DeleteNav<T>(T data)
diff --git a/Src/Asp.Net/SqlSugar/SqlSugar.csproj b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
index a2d88c217..70e934592 100644
--- a/Src/Asp.Net/SqlSugar/SqlSugar.csproj
+++ b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
@@ -89,6 +89,9 @@
     <Compile Include="Abstract\DeleteProvider\SplitTableDeleteByObjectProvider.cs" />
     <Compile Include="Abstract\DeleteProvider\SplitTableDeleteProvider.cs" />
     <Compile Include="Abstract\EntityMaintenance\EntityMaintenance.cs" />
+    <Compile Include="Abstract\ExecuteNavProvider\InsertNavProviderOneToMany.cs" />
+    <Compile Include="Abstract\ExecuteNavProvider\InsertNavProviderManyToMany.cs" />
+    <Compile Include="Abstract\ExecuteNavProvider\InsertNavProviderOneToOne.cs" />
     <Compile Include="Abstract\ExecuteNavProvider\DeleteNavProvider.cs" />
     <Compile Include="Abstract\ExecuteNavProvider\UpdateInsert.cs" />
     <Compile Include="Abstract\ExecuteNavProvider\InsertNavProvider.cs" />