-

OrmTest/Program.cs

@@ -25,7 +25,7 @@ namespace OrmTest
             string x = "1";
             Expression<Func<Student, bool>> exp = it => it.Name==new Program().x;
            // Expression<Func<Student, object>> exp = it => it.Name;
-            ExpressionContext expContext = new ExpressionContext(exp, ResolveExpressType.Single);
+            ExpressionContext expContext = new ExpressionContext(exp, ResolveExpressType.WhereSingle);
            // var x = expContext.GetFiledName();
             var xx = expContext.ToSqlString();
 

SqlSugar/Abstract/LambdaExpressionsProvider/ResolveExpress/Expressions.cs

@@ -86,7 +86,7 @@ namespace SqlSugar
             }
             else
             {
-                if (Type == ResolveExpressType.Multiple)
+                if (Type == ResolveExpressType.WhereMultiple)
                 {
                     type = MemberType.Key;
                     var dbName = exp.ToString();

SqlSugar/Abstract/LambdaExpressionsProvider/ResolveExpress/Main.cs

@@ -39,7 +39,7 @@ namespace SqlSugar
         }
 
         public string SqlWhere = null;
-        public ResolveExpressType Type = ResolveExpressType.Single;
+        public ResolveExpressType Type = ResolveExpressType.WhereSingle;
         public List<SqlParameter> Paras = new List<SqlParameter>();
         private int SameIndex = 1;
         private SqlSugarClient DB;
@@ -272,7 +272,7 @@ namespace SqlSugar
             string oldLeft = left;
             left = left + SameIndex;
             SameIndex++;
-            if (Type != ResolveExpressType.Single)
+            if (Type != ResolveExpressType.WhereSingle)
             {
                 left = left.Replace(".", "_");
             }
@@ -298,7 +298,7 @@ namespace SqlSugar
             string oldRight = right;
             right = right + SameIndex;
             SameIndex++;
-            if (Type != ResolveExpressType.Single)
+            if (Type != ResolveExpressType.WhereSingle)
             {
                 right = right.Replace(".", "_");
             }

SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs

@@ -28,7 +28,7 @@ namespace SqlSugar
 
         public virtual ISugarQueryable<T> Where(Expression<Func<T, bool>> expression)
         {
-            base.Where<T>(expression, ResolveExpressType.Single, this.Context);
+            base.Where<T>(expression, ResolveExpressType.WhereSingle, this.Context);
             return this;
         }
 
@@ -299,7 +299,7 @@ namespace SqlSugar
             var sqlBuilder = this.Context.SqlBuilder;
             var items = sqlBuilder.LambadaQueryBuilder;
             items.WhereIndex = items.WhereIndex + 100;
-            items.ResolveType = ResolveExpressType.Multiple;
+            items.ResolveType = ResolveExpressType.WhereMultiple;
             ResolveExpress re = new ResolveExpress();
             re.Context = this.Context;
             var exLeftArray = re.GetLeftArray(expression);

SqlSugar/ExpressionsToSql/Common/ResolveExpressType.cs

@@ -7,7 +7,9 @@ namespace SqlSugar
 {
     public enum ResolveExpressType
     {
-        Single = 0,
+        WhereSingle = 0,
-        Multiple = 1,
+        WhereMultiple = 1,
+        SelectSingle=2,
+        SelectMultiple=3
     }
 }

SqlSugar/ExpressionsToSql/ExpressionContext.cs

@@ -27,7 +27,7 @@ namespace SqlSugar
         {
             get
             {
-                return this.Type == ResolveExpressType.Single;
+                return this.Type == ResolveExpressType.WhereSingle;
             }
         }
         public List<SugarParameter> Parameters

SqlSugar/ExpressionsToSql/ResolveItems/MemberNewExpressionResolve.cs

@@ -19,7 +19,7 @@ namespace SqlSugar
             var isProperty = expression.Member is System.Reflection.PropertyInfo;
             if (isField)
             {
-                value = ExpressionTool.GetFiledValue(expression.Expression as MemberExpression);
+                value = ExpressionTool.GetFiledValue(expression);
             }
             else if (isProperty)
             {