diff --git a/Src/Asp.Net/SqlSugar/Interface/IStorageable.cs b/Src/Asp.Net/SqlSugar/Interface/IStorageable.cs
index 097b68d38..3c52d6da4 100644
--- a/Src/Asp.Net/SqlSugar/Interface/IStorageable.cs
+++ b/Src/Asp.Net/SqlSugar/Interface/IStorageable.cs
@@ -57,13 +57,13 @@ namespace SqlSugar
             var rightValue = Item.GetType().GetProperty(pk).GetValue(Item, null);
             var left = leftValue.ObjToString();
             var rigth = rightValue.ObjToString();
-            if (it.GetType().GetProperty(pk).PropertyType == UtilConstants.DecType)
+            if (leftValue!=null&& (leftValue is decimal||leftValue is decimal?))
             {
                 return Convert.ToDecimal(leftValue) == Convert.ToDecimal(rightValue);
             }
             else
             {
-                return left == rigth;
+                return left.EqualCase(rigth);
             }
         }