Oprions 類別提供 DefaultPolicy 供使用者呼叫

maxzh1999tw · Jan 16, 2024 · e8480c3 · e8480c3
1 parent 5825d62
commit e8480c3
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Showing 4 changed files with 102 additions and 17 deletions.
diff --git a/Excely/TableConverters/ClassListTableConverter.cs b/Excely/TableConverters/ClassListTableConverter.cs
@@ -37,7 +37,6 @@ public ClassListTableConverter(ClassListTableConverterOptions<TClass> options)
         }
         #endregion
 
-
         /// <summary>
         /// 將指定的 Table 轉換為 Class list。
         /// </summary>
@@ -183,25 +182,33 @@ public class ClassListTableConverterOptions<TClass>
         /// 決定 Property 作為欄位時的名稱。
         /// 預設為 PropertyInfo.Name
         /// </summary>
-        public PropertyNamePolicyDelegate PropertyNamePolicy { get; set; } = property => property.Name;
+        public PropertyNamePolicyDelegate PropertyNamePolicy { get; set; }
 
         /// <summary>
         /// 取得 Property 出現在表頭時的位置。
         /// 預設為依類別內預設排序。
         /// </summary>
-        public PropertyIndexPolicyDelegate PropertyIndexPolicy { get; set; } = (propertys, property) => Array.IndexOf(propertys, property);
+        public PropertyIndexPolicyDelegate PropertyIndexPolicy { get; set; }
 
         /// <summary>
         /// 決定將值寫入至 Property 時應寫入的值。
         /// 預設為原值。
         /// </summary>
-        public PropertyValueSettingPolicyDelegate PropertyValueSettingPolicy { get; set; } = (prop, obj) => obj;
+        public PropertyValueSettingPolicyDelegate PropertyValueSettingPolicy { get; set; }
 
         /// <summary>
         /// 將值輸入進物件發生錯誤時，決定錯誤處理方式。
         /// 預設為不處理錯誤。
         /// </summary>
-        public ErrorHandlingPolicyDelegate ErrorHandlingPolicy { get; set; } = (_, _, _, _, _) => false;
+        public ErrorHandlingPolicyDelegate ErrorHandlingPolicy { get; set; }
+
+        public ClassListTableConverterOptions()
+        {
+            PropertyNamePolicy = DefaultPropertyNamePolicy;
+            PropertyIndexPolicy = DefaultPropertyIndexPolicy;
+            PropertyValueSettingPolicy = DefaultPropertyValueSettingPolicy;
+            ErrorHandlingPolicy = DefaultErrorHandlingPolicyDelegate;
+        }
 
         #region ===== Policy delegates =====
 
@@ -245,5 +252,22 @@ public delegate bool ErrorHandlingPolicyDelegate(
             Exception exception);
 
         #endregion ===== Policy delegates =====
+
+        #region ===== Default policies =====
+
+        public static string? DefaultPropertyNamePolicy(PropertyInfo property) => property.Name;
+
+        public static int? DefaultPropertyIndexPolicy(PropertyInfo[] allProperties, PropertyInfo property) => Array.IndexOf(allProperties, property);
+
+        public static object? DefaultPropertyValueSettingPolicy(PropertyInfo property, object? originalValue) => originalValue;
+
+        public static bool DefaultErrorHandlingPolicyDelegate(
+            CellLocation cellLocation,
+            TClass writtingObject,
+            PropertyInfo writtingProperty,
+            object? writtingValue,
+            Exception exception) => false;
+
+        #endregion ===== Default policies =====
     }
 }
diff --git a/Excely/TableConverters/DictionaryListTableConverter.cs b/Excely/TableConverters/DictionaryListTableConverter.cs
@@ -1,4 +1,8 @@
-namespace Excely.TableConverters
+using System;
+using System.Formats.Asn1;
+using System.Reflection;
+
+namespace Excely.TableConverters
 {
     /// <summary>
     /// 將 Table 轉換為字典列表。
@@ -87,13 +91,19 @@ public class DictionaryListTableConverterOptions
         /// 若 HasSchema 為 false 時，欄位名稱將是 null。
         /// 預設為 (欄位名稱 ?? 欄位index)。
         /// </summary>
-        public CustomKeyNamePolicyDelegate CustomKeyNamePolicy { get; set; } = (index, fieldName) => fieldName ?? index.ToString();
+        public CustomKeyNamePolicyDelegate CustomKeyNamePolicy { get; set; }
 
         /// <summary>
         /// 決定將值寫入至 Vale 時應寫入的值。
         /// 預設為原值。
         /// </summary>
-        public CustomValuePolicyDelegate CustomValuePolicy { get; set; } = (key, value) => value;
+        public CustomValuePolicyDelegate CustomValuePolicy { get; set; }
+
+        public DictionaryListTableConverterOptions()
+        {
+            CustomKeyNamePolicy = DefaultCustomKeyNamePolicy;
+            CustomValuePolicy = DefaultCustomValuePolicy;
+        }
 
         #region ===== Policy delegates =====
 
@@ -114,5 +124,13 @@ public class DictionaryListTableConverterOptions
         public delegate object? CustomValuePolicyDelegate(string key, object? originalValue);
 
         #endregion ===== Policy delegates =====
+
+        #region ===== Default policies =====
+
+        public static string? DefaultCustomKeyNamePolicy(int fieldIndex, string? fieldName) => fieldName ?? fieldIndex.ToString();
+
+        public static object? DefaultCustomValuePolicy(string key, object? originalValue) => originalValue;
+
+        #endregion ===== Default policies =====
     }
 }
diff --git a/Excely/TableFactories/ClassListTableFactory.cs b/Excely/TableFactories/ClassListTableFactory.cs
@@ -88,25 +88,33 @@ public class ClassListTableFactoryOptions<TClass>
         /// 決定 Property 是否應作為欄位匯出。
         /// 預設為全部欄位都匯出。
         /// </summary>
-        public PropertyShowPolicyDelegate PropertyShowPolicy { get; set; } = _ => true;
+        public PropertyShowPolicyDelegate PropertyShowPolicy { get; set; }
 
         /// <summary>
         /// 決定 Property 作為欄位時的名稱。
         /// 預設為 PropertyInfo.Name。
         /// </summary>
-        public PropertyNamePolicyDelegate PropertyNamePolicy { get; set; } = property => property.Name;
+        public PropertyNamePolicyDelegate PropertyNamePolicy { get; set; }
 
         /// <summary>
         /// 決定 Property 作為欄位時的順序。
         /// 預設為依類別內預設排序。
         /// </summary>
-        public PropertyOrderPolicyDelegate PropertyOrderPolicy { get; set; } = (properties, property) => Array.IndexOf(properties, property);
+        public PropertyOrderPolicyDelegate PropertyOrderPolicy { get; set; }
 
         /// <summary>
         /// 決定資料寫入欄位時的值。
         /// 預設為該 Property 之 Value。
         /// </summary>
-        public CustomValuePolicyDelegate CustomValuePolicy { get; set; } = (property, obj) => property.GetValue(obj);
+        public CustomValuePolicyDelegate CustomValuePolicy { get; set; }
+
+        public ClassListTableFactoryOptions()
+        {
+            PropertyShowPolicy = DefaultPropertyShowPolicy;
+            PropertyNamePolicy = DefaultPropertyNamePolicy;
+            PropertyOrderPolicy = DefaultPropertyOrderPolicy;
+            CustomValuePolicy = DefaultCustomValuePolicy;
+        }
 
         #region ===== Policy delegates =====
 
@@ -141,5 +149,17 @@ public class ClassListTableFactoryOptions<TClass>
         public delegate object? CustomValuePolicyDelegate(PropertyInfo property, TClass obj);
 
         #endregion ===== Policy delegates =====
+
+        #region ===== Default policies =====
+
+        public static bool DefaultPropertyShowPolicy(PropertyInfo property) => true;
+
+        public static string? DefaultPropertyNamePolicy(PropertyInfo property) => property.Name;
+
+        public static int? DefaultPropertyOrderPolicy(PropertyInfo[] allProperties, PropertyInfo property) => Array.IndexOf(allProperties, property);
+
+        public static object? DefaultCustomValuePolicy(PropertyInfo property, TClass obj) => property.GetValue(obj);
+
+        #endregion ===== Default policies =====
     }
 }
diff --git a/Excely/TableFactories/DictionaryListTableFactory.cs b/Excely/TableFactories/DictionaryListTableFactory.cs
@@ -1,4 +1,7 @@
-namespace Excely.TableFactories
+using System.Formats.Asn1;
+using System.Reflection;
+
+namespace Excely.TableFactories
 {
     /// <summary>
     /// 提供以字典 Key 為欄位，將字典集合傾印至表格的功能。
@@ -77,25 +80,33 @@ public class DictionaryListTableFactoryOptions
         /// 決定 key 是否應作為欄位匯出。
         /// 預設為全部欄位都匯出。
         /// </summary>
-        public KeyShowPolicyDelegate KeyShowPolicy { get; set; } = _ => true;
+        public KeyShowPolicyDelegate KeyShowPolicy { get; set; }
 
         /// <summary>
         /// 決定 key 作為欄位時的名稱。
         /// 預設為 key。
         /// </summary>
-        public KeyNamePolicyDelegate KeyNamePolicy { get; set; } = key => key;
+        public KeyNamePolicyDelegate KeyNamePolicy { get; set; }
 
         /// <summary>
         /// 決定 key 作為欄位時的權重(越小越靠前)。
         /// 預設為 key 的預設順序。
         /// </summary>
-        public KeyOrderPolicyDelegate KeyOrderPolicy { get; set; } = (allKeys, key) => Array.IndexOf(allKeys, key);
+        public KeyOrderPolicyDelegate KeyOrderPolicy { get; set; }
 
         /// <summary>
         /// 決定資料寫入欄位時的值。
         /// 預設為 Value。
         /// </summary>
-        public CustomValuePolicyDelegate CustomValuePolicy { get; set; } = (key, dict) => dict.GetValueOrDefault(key, null);
+        public CustomValuePolicyDelegate CustomValuePolicy { get; set; }
+
+        public DictionaryListTableFactoryOptions()
+        {
+            KeyShowPolicy = DefaultKeyShowPolicy;
+            KeyNamePolicy = DefaultKeyNamePolicy;
+            KeyOrderPolicy = DefaultKeyOrderPolicy;
+            CustomValuePolicy = DefaultCustomValuePolicy;
+        }
 
         #region ===== Policy delegates =====
 
@@ -130,5 +141,17 @@ public class DictionaryListTableFactoryOptions
         public delegate object? CustomValuePolicyDelegate(string key, Dictionary<string, object?> writtingDict);
 
         #endregion ===== Policy delegates =====
+
+        #region ===== Default policies =====
+
+        public static bool DefaultKeyShowPolicy(string key) => true;
+
+        public static string? DefaultKeyNamePolicy(string key) => key;
+
+        public static int DefaultKeyOrderPolicy(string[] allKeys, string key) => Array.IndexOf(allKeys, key);
+
+        public static object? DefaultCustomValuePolicy(string key, Dictionary<string, object?> writtingDict) => writtingDict.GetValueOrDefault(key, null);
+
+        #endregion ===== Default policies =====
     }
 }