diff --git a/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs b/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs
index 9b289e8a4..87fda8456 100644
--- a/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs
+++ b/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs
@@ -89,7 +89,9 @@ namespace IRaCIS.Core.API
             {
                 if (DateTime.TryParse((string)reader.Value, out dateTime) == false)
                 {
-                    return null;
+
+                    throw new JsonSerializationException($"Could not convert string to DateTime: {reader.Value} Path {reader.Path}");
+                    //return null;
                 }
             }
 
@@ -113,7 +115,6 @@ namespace IRaCIS.Core.API
                 //第一个参数默认使用系统本地时区 也就是应用服务器的时区
                 DateTime clientZoneTime = TimeZoneInfo.ConvertTime(nullableDateTime.Value, _clientTimeZone);
 
-                //writer.WriteValue(clientZoneTime);
 
                 writer.WriteValue(clientZoneTime.ToString(_dateFormat));
             }
diff --git a/IRaCIS.Core.Application/BusinessFilter/LegacyController/ModelActionFilter .cs b/IRaCIS.Core.Application/BusinessFilter/LegacyController/ModelActionFilter .cs
index 7d7c885a3..ee1d392cf 100644
--- a/IRaCIS.Core.Application/BusinessFilter/LegacyController/ModelActionFilter .cs	
+++ b/IRaCIS.Core.Application/BusinessFilter/LegacyController/ModelActionFilter .cs	
@@ -36,38 +36,3 @@ public class ModelActionFilter(IStringLocalizer _localizer) : ActionFilterAttrib
 
 
 
-
-public class SpecificNullableBinderProvider : IModelBinderProvider
-{
-    public IModelBinder? GetBinder(ModelBinderProviderContext context)
-    {
-        var type = context.Metadata.ModelType;
-
-        // 只处理 Guid? 和 int?
-        if (type == typeof(Guid?) || type == typeof(int?))
-        {
-            return new SpecificNullableBinder();
-        }
-
-        return null;
-    }
-}
-
-public class SpecificNullableBinder : IModelBinder
-{
-    public Task BindModelAsync(ModelBindingContext context)
-    {
-        var value = context.ValueProvider.GetValue(context.ModelName).FirstValue;
-
-        if (string.IsNullOrWhiteSpace(value))
-        {
-            context.Result = ModelBindingResult.Success(null);
-        }
-        else
-        {
-            context.Result = ModelBindingResult.Success(value);
-        }
-
-        return Task.CompletedTask;
-    }
-}
\ No newline at end of file