甄别

src/Hotline.Share/Dtos/Order/OrderScreenDto.cs

@@ -110,7 +110,7 @@ namespace Hotline.Share.Dtos.Order
 		/// </summary>
 		public OrderScreenType? ScreenType { get; set; }
 
-		public string ScreenTypeText => ScreenType.GetDescription();
+		public string ScreenTypeText => ScreenType.HasValue ? ScreenType.GetDescription() : string.Empty;
 
 		/// <summary>
 		/// 是否可办理