diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index 97afb24aa..f9fb99596 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -1506,6 +1506,12 @@ namespace SqlSugar
             }
             return _Select<TResult>(expression);
         }
+        public virtual ISugarQueryable<TResult> SelectIF<TResult>(bool condition, Expression<Func<T, TResult>> trueSelectExpression, Expression<Func<T, TResult>> falseSelectExpression) {
+            if (condition)
+                return Select(trueSelectExpression);
+            else
+                return Select(falseSelectExpression);
+        }
         public ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression, bool isAutoFill)
         {
             if (typeof(TResult).IsAnonymousType()) 
diff --git a/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs b/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
index 7d45895f9..e34b41b0a 100644
--- a/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
+++ b/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
@@ -163,6 +163,7 @@ namespace SqlSugar
         ISugarQueryable<T> Select(string expShortName, FormattableString expSelect, Type resultType);
         ISugarQueryable<TResult> Select<TResult>(Expression expression);
         ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression);
+        ISugarQueryable<TResult> SelectIF<TResult>(bool condition, Expression<Func<T, TResult>> trueSelectExpression, Expression<Func<T, TResult>> falseSelectExpression);
         ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression,bool isAutoFill);
         ISugarQueryable<TResult> Select<TResult>();
         ISugarQueryable<TResult> Select<TResult>(string select);