From 46f47922ddfa39764939287c21796386a988856c Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Tue, 27 Sep 2022 22:13:36 +0800
Subject: [PATCH] exp to sql :  ids.Contains(it.Name,true)

---
 .../ExpressionsToSql/DbMethods/DefaultDbMethod.cs    | 12 ++++++++++--
 Src/Asp.Net/SqlSugar/Utilities/CommonExtensions.cs   | 10 ++++++++++
 Src/Asp.Net/SqlSugar/Utilities/DbExtensions.cs       | 12 +++++++++++-
 3 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
index 4de1230b7..556a6031e 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
@@ -99,9 +99,17 @@ namespace SqlSugar
             }
             var value = model.Args[1].MemberName;
             string inValueString = null;
+            var isNvarchar = model.Args.Count == 3;
             if (inValues != null && inValues.Count > 0)
-            {            
-                    inValueString = inValues.ToArray().ToJoinSqlInVals();             
+            {
+                if (isNvarchar&& model.Args[2].MemberValue.Equals(true))
+                {
+                    inValueString = inValues.ToArray().ToJoinSqlInValsN();
+                }
+                else
+                {
+                    inValueString = inValues.ToArray().ToJoinSqlInVals();
+                }
             }
             if (inValueString.IsNullOrEmpty())
             {
diff --git a/Src/Asp.Net/SqlSugar/Utilities/CommonExtensions.cs b/Src/Asp.Net/SqlSugar/Utilities/CommonExtensions.cs
index 11d1dd225..9164b2f8e 100644
--- a/Src/Asp.Net/SqlSugar/Utilities/CommonExtensions.cs
+++ b/Src/Asp.Net/SqlSugar/Utilities/CommonExtensions.cs
@@ -38,3 +38,13 @@ namespace SqlSugar
         }
     }
 }
+namespace System.Collections.Generic
+{
+    public static class EnumerableExtensions
+    {
+        public static bool Contains<T>(this IEnumerable<T> thisValue, T likeKey, bool isNvarchar)
+        {
+            return thisValue.Contains(likeKey);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Src/Asp.Net/SqlSugar/Utilities/DbExtensions.cs b/Src/Asp.Net/SqlSugar/Utilities/DbExtensions.cs
index 83ae52529..b221ac849 100644
--- a/Src/Asp.Net/SqlSugar/Utilities/DbExtensions.cs
+++ b/Src/Asp.Net/SqlSugar/Utilities/DbExtensions.cs
@@ -18,7 +18,17 @@ namespace SqlSugar
                 return string.Join(",", array.Where(c => c != null).Select(it => it.ToSqlValue()));
             }
         }
-
+        public static string ToJoinSqlInValsN<T>(this T[] array)
+        {
+            if (array == null || array.Length == 0)
+            {
+                return ToSqlValue(string.Empty);
+            }
+            else
+            {
+                return string.Join(",", array.Where(c => c != null).Select(it => "N"+it.ToSqlValue()));
+            }
+        }
         public static string ToSqlValue(this object value)
         {
             if (value!=null&& UtilConstants.NumericalTypes.Contains(value.GetType()))