修改 分页查询时 无法处理int?string?这样的值

Code/Be/Faster.Zheng.Winin/src/Faster.Zheng.Winin.Application.Contracts/AppBase/Filters/FilterExtensions.cs

@@ -148,12 +148,12 @@ public static class FilterExtensions
             {
                 var objValue = Convert.ChangeType(value, propertyType.GetGenericArguments()[0],
                     CultureInfo.InvariantCulture);
-                constant = Expression.Constant(objValue);
+                constant = Expression.Constant(objValue, propertyType);
             }
             else if (propertyType.IsEnum)
             {
                 var enumValue = (Enum)Enum.Parse(propertyType, value, true);
-                constant = Expression.Constant(enumValue);
+                constant = Expression.Constant(enumValue, propertyType);
             }
             else
             {