diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/AdoProvider/AdoProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/AdoProvider/AdoProvider.cs
index 17830f172..1dc8aef38 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/AdoProvider/AdoProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/AdoProvider/AdoProvider.cs
@@ -311,7 +311,8 @@ namespace SqlSugar
                     sqlCommand.Parameters.Clear();
                 ExecuteAfter(sql, parameters);
                 SetConnectionEnd(sql);
-                //sqlCommand.Dispose();
+                if (this.Context.CurrentConnectionConfig.DbType == DbType.Sqlite)
+                    sqlCommand.Dispose();
                 return sqlDataReader;
             }
             catch (Exception ex)
@@ -445,7 +446,8 @@ namespace SqlSugar
                     sqlCommand.Parameters.Clear();
                 ExecuteAfter(sql, parameters);
                 SetConnectionEnd(sql);
-                //sqlCommand.Dispose();
+                if (this.Context.CurrentConnectionConfig.DbType == DbType.Sqlite)
+                    sqlCommand.Dispose(); 
                 return sqlDataReader;
             }
             catch (Exception ex)
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
index 823cd8cc1..5e8390350 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
@@ -191,16 +191,28 @@ namespace SqlSugar
 
         public IDeleteable<T> Where(string whereString, SugarParameter parameter)
         {
+            if (DeleteBuilder.Parameters == null)
+            {
+                DeleteBuilder.Parameters = new List<SugarParameter>();
+            }
             DeleteBuilder.Parameters.Add(parameter);
             return this;
         }
         public IDeleteable<T> Where(string whereString, SugarParameter[] parameters)
         {
+            if (DeleteBuilder.Parameters == null)
+            {
+                DeleteBuilder.Parameters = new List<SugarParameter>();
+            }
             DeleteBuilder.Parameters.AddRange(parameters);
             return this;
         }
         public IDeleteable<T> Where(string whereString, List<SugarParameter> parameters)
         {
+            if (DeleteBuilder.Parameters == null)
+            {
+                DeleteBuilder.Parameters = new List<SugarParameter>();
+            }
             DeleteBuilder.Parameters.AddRange(parameters);
             return this;
         }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
index c34bb5abf..0250dd538 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
@@ -965,7 +965,12 @@ namespace SqlSugar
                             addParameters.Add(parameter);
                         }
                         parsmeters.AddRange(addParameters);
-                        itemSql = itemSql.TrimEnd(';')+";";
+                        itemSql = itemSql
+                            .TrimEnd('\r')
+                            .TrimEnd('\n')
+                            .TrimEnd('\r')
+                            .TrimEnd('\n')
+                            .TrimEnd(';')+";";
                         sqlBuilder.AppendLine(itemSql);
                         index++;
                     }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDbFirst.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDbFirst.cs
index 977afe120..0cc4302a2 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDbFirst.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDbFirst.cs
@@ -15,12 +15,12 @@ namespace SqlSugar
         IDbFirst SettingNamespaceTemplate(Func<string, string> func);
         RazorFirst UseRazorAnalysis(string razorClassString, string classNamespace = "Models");
         IDbFirst IsCreateAttribute(bool isCreateAttribute = true);
-        IDbFirst IsCreateDefaultValue(bool isCreateDefaultValue=true);
+        IDbFirst IsCreateDefaultValue(bool isCreateDefaultValue = true);
         IDbFirst Where(params string[] objectNames);
-        IDbFirst Where(Func<string,bool> func);
+        IDbFirst Where(Func<string, bool> func);
         IDbFirst WhereColumns(Func<string, bool> func);
         IDbFirst Where(DbObjectType dbObjectType);
-        void CreateClassFile(string directoryPath,  string nameSpace = "Models");
+        void CreateClassFile(string directoryPath, string nameSpace = "Models");
         Dictionary<string, string> ToClassStringList(string nameSpace = "Models");
         void Init();
     }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Utilities/UtilConvert.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Utilities/UtilConvert.cs
index ca4495679..6b0d9dcf4 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Utilities/UtilConvert.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Utilities/UtilConvert.cs
@@ -10,6 +10,10 @@ namespace SqlSugar
         {
             int reval = 0;
             if (thisValue == null) return 0;
+            if (thisValue is Enum)
+            {
+                return (int)thisValue;
+            }
             if (thisValue != null && thisValue != DBNull.Value && int.TryParse(thisValue.ToString(), out reval))
             {
                 return reval;
@@ -20,6 +24,10 @@ namespace SqlSugar
         public static int ObjToInt(this object thisValue, int errorValue)
         {
             int reval = 0;
+            if (thisValue is Enum)
+            {
+                return (int)thisValue;
+            }
             if (thisValue != null && thisValue != DBNull.Value && int.TryParse(thisValue.ToString(), out reval))
             {
                 return reval;