..

src/aspnet-core/ICS.Common/Extension/LinqExpressionExt.cs

@@ -88,18 +88,11 @@ namespace ICS.Common.Extension
                     constant = Expression.Constant(filterCondition.ColumnValue);
                     break;
                 case ConfigColumnDataType.type_int:
-                    if (currentProp.PropertyType == typeof(int))
-                    {
-                        constant = Expression.Constant(filterCondition.ColumnValue.ToInt());
-                    }
-                    else
-                    {
-                        constant = Expression.Constant(filterCondition.ColumnValue.ToIntWithNull());
-                    }
+                    constant = Expression.Constant(filterCondition.ColumnValue.ToInt(), currentProp.PropertyType);
                     break;
                 case ConfigColumnDataType.type_decimal:
 
-                    constant = Expression.Constant(filterCondition.ColumnValue.ToDecimal());
+                    constant = Expression.Constant(filterCondition.ColumnValue.ToDecimal(), currentProp.PropertyType);
                     break;
                 case ConfigColumnDataType.type_datetime:
                     constant = Expression.Constant(filterCondition.ColumnValue.ToDate(), currentProp.PropertyType);