From d80ce8c345d6e929a35b9c0c022358708af45021 Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Wed, 17 May 2017 01:19:36 +0800
Subject: [PATCH] -

---
 .../DeleteProvider/DeleteableProvider.cs        | 17 ++++++++++-------
 SqlSugar/InstanceFactory.cs                     |  2 +-
 .../Core/SqlBuilder/SqlServerDeleteBuilder.cs   |  2 +-
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs b/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
index d9544d68b..33491efde 100644
--- a/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
+++ b/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
@@ -54,9 +54,10 @@ namespace SqlSugar
                     foreach (var deleteObj in deleteObjs)
                     {
                         StringBuilder orString = new StringBuilder();
-                        var isFirst = deleteObjs.IndexOf(deleteObj)==0;
-                        if (isFirst) {
-                            orString.Append(DeleteBuilder.WhereInOrTemplate+PubConst.Space);
+                        var isFirst = deleteObjs.IndexOf(deleteObj) == 0;
+                        if (isFirst)
+                        {
+                            orString.Append(DeleteBuilder.WhereInOrTemplate + PubConst.Space);
                         }
                         int i = 0;
                         StringBuilder andString = new StringBuilder();
@@ -70,10 +71,10 @@ namespace SqlSugar
                             andString.AppendFormat(DeleteBuilder.WhereInEqualTemplate, primaryField, entityValue);
                             ++i;
                         }
-                        orString.AppendFormat(DeleteBuilder.WhereInAreaTemplate,andString);
+                        orString.AppendFormat(DeleteBuilder.WhereInAreaTemplate, andString);
                         whereInSql.Append(orString);
                     }
-                    Where(string.Format(DeleteBuilder.WhereInAreaTemplate,whereInSql.ToString()));
+                    Where(string.Format(DeleteBuilder.WhereInAreaTemplate, whereInSql.ToString()));
                 }
             }
             else
@@ -105,7 +106,8 @@ namespace SqlSugar
             }
             return this;
         }
-        public IDeleteable<T> In<PkType>(List<PkType> primaryKeyValues) {
+        public IDeleteable<T> In<PkType>(List<PkType> primaryKeyValues)
+        {
             if (primaryKeyValues == null || primaryKeyValues.Count() == 0)
             {
                 Where("1=2 ");
@@ -149,8 +151,9 @@ namespace SqlSugar
 
         public KeyValuePair<string, List<SugarParameter>> ToSql()
         {
+            DeleteBuilder.TableName = this.Context.GetTableName<T>();
             string sql = DeleteBuilder.ToSqlString();
-            var paramters = DeleteBuilder.Parameters.ToList();
+            var paramters = DeleteBuilder.Parameters == null ? null : DeleteBuilder.Parameters.ToList();
             return new KeyValuePair<string, List<SugarParameter>>(sql, paramters);
         }
     }
diff --git a/SqlSugar/InstanceFactory.cs b/SqlSugar/InstanceFactory.cs
index 3fbc4c269..000985e6f 100644
--- a/SqlSugar/InstanceFactory.cs
+++ b/SqlSugar/InstanceFactory.cs
@@ -89,7 +89,7 @@ namespace SqlSugar
         public static IDb GetDb(IConnectionConfig currentConnectionConfig)
         {
             CheckConfig(currentConnectionConfig);
-            IDb reval = CreateInstance<IDb>(GetClassName(currentConnectionConfig.DbType, "Db"), currentConnectionConfig.DbType);
+            IDb reval = CreateInstance<IDb>(GetClassName(currentConnectionConfig.DbType, "Provider"), currentConnectionConfig.DbType);
             return reval;
         }
 
diff --git a/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDeleteBuilder.cs b/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDeleteBuilder.cs
index 1f171f735..516e451b7 100644
--- a/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDeleteBuilder.cs
+++ b/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDeleteBuilder.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace SqlSugar
 {
-    public class SqlServerDeleteBuilder<T>:DeleteableProvider<T> where T:class,new()
+    public class SqlServerDeleteBuilder: DeleteBuilder
     {
 
     }