- 增加 SqlServer ISelect.WithLock 扩展方法，实现 with(nolock) 查询；

- 增加 SqlServer IFreeSql.SetGlobalSelectWithLock 扩展方法，实现全局设置 with(nock) 查询；
- 移除 Aop.ToList；
- 移除 Aop.Where；

Providers/FreeSql.Provider.SqlServer/SqlServerExtensions.cs

@@ -1,4 +1,9 @@
-public static partial class FreeSqlGlobalExtensions
+using FreeSql;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+
+public static partial class FreeSqlSqlServerGlobalExtensions
 {
 
     /// <summary>
@@ -9,4 +14,35 @@
     /// <returns></returns>
     public static string FormatSqlServer(this string that, params object[] args) => _sqlserverAdo.Addslashes(that, args);
     static FreeSql.SqlServer.SqlServerAdo _sqlserverAdo = new FreeSql.SqlServer.SqlServerAdo();
+
+    /// <summary>
+    /// SqlServer with(nolock) 查询
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
+    /// <param name="that"></param>
+    /// <param name="lockType"></param>
+    /// <param name="rule">多表查询时的锁规则</param>
+    /// <returns></returns>
+    public static ISelect<T> WithLock<T>(this ISelect<T> that, SqlServerLock lockType = SqlServerLock.NoLock, Dictionary<Type, bool> rule = null) where T : class 
+        => rule == null ? 
+        that.AsAlias((type, old) => $"{old} with({lockType.ToString()})") :
+        that.AsAlias((type, old) => rule.TryGetValue(type, out var trybool) && trybool ? $"{old} with({lockType.ToString()})" : old);
+
+    /// <summary>
+    /// 设置全局 SqlServer with(nolock) 查询
+    /// </summary>
+    /// <param name="that"></param>
+    /// <param name="options"></param>
+    public static IFreeSql SetGlobalSelectWithLock(this IFreeSql that, SqlServerLock lockType, Dictionary<Type, bool> rule)
+    {
+        var value = (lockType, rule);
+        _dicSetGlobalSelectWithLock.AddOrUpdate(that, value, (_, __) => value);
+        return that;
+    }
+    internal static ConcurrentDictionary<IFreeSql, (SqlServerLock, Dictionary<Type, bool>)> _dicSetGlobalSelectWithLock = new ConcurrentDictionary<IFreeSql, (SqlServerLock, Dictionary<Type, bool>)>();
 }
+
+public enum SqlServerLock
+{
+    HoldLock, NoLock, PagLock, ReadCommitted, ReadPast, ReadUnCommitted, RepeaTableRead, RowLock, Serializable, TabLock, TabLockX, UpdLock, XLock
+}