C#反射方法擴充

標籤：extension   property   dict   方法   task   type   交流   程式   key   

反射是程式猿的好幫手，有了反射你可以少寫一半的代碼。下面是一些常用的反射擴充方法。

 

using System;using System.Collections.Generic;using System.Linq;using System.Reflection;using System.Text;using System.Threading.Tasks;namespace LiLi.Util{    public static class ReflectionExtension    {        public static IEnumerable<string> Keys(this Type type, BindingFlags? propBindingAttr = null, BindingFlags? fieldBindingAttr = null)        {            List<string> result = new List<string>();            result.AddRange(PropertyKeys(type, propBindingAttr));            result.AddRange(FieldKeys(type, fieldBindingAttr));            return result;        }        public static IEnumerable<string> PropertyKeys(this Type type, BindingFlags? bindingAttr = null)        {            PropertyInfo[] props = bindingAttr.HasValue ? type.GetProperties(bindingAttr.Value) : type.GetProperties();            return props.Select(x => x.Name);        }        public static IEnumerable<string> FieldKeys(this Type type, BindingFlags? bindingAttr = null)        {            FieldInfo[] fields = bindingAttr.HasValue ? type.GetFields(bindingAttr.Value) : type.GetFields();            return fields.Select(x => x.Name);        }        public static IDictionary<string, object> KeyValueList(this Type type, object obj, BindingFlags? propBindingAttr = null, BindingFlags? fieldBindingAttr = null)        {            Dictionary<string, object> result = new Dictionary<string, object>();            PropertyInfo[] props = propBindingAttr.HasValue ? type.GetProperties(propBindingAttr.Value) : type.GetProperties();            Array.ForEach(props, x => result.Add(x.Name, x.GetValue(obj)));            FieldInfo[] fields = fieldBindingAttr.HasValue ? type.GetFields(fieldBindingAttr.Value) : type.GetFields();            Array.ForEach(fields, x => result.Add(x.Name, x.GetValue(obj)));            return result;        }        public static IDictionary<string, object> PropertyKeyValueList(this Type type, object obj, BindingFlags? bindingAttr = null)        {            Dictionary<string, object> result = new Dictionary<string, object>();            PropertyInfo[] props = bindingAttr.HasValue ? type.GetProperties(bindingAttr.Value) : type.GetProperties();            Array.ForEach(props, x => result.Add(x.Name, x.GetValue(obj)));            return result;        }        public static IDictionary<string, object> FieldKeyValueList(this Type type, object obj, BindingFlags? bindingAttr = null)        {            Dictionary<string, object> result = new Dictionary<string, object>();            FieldInfo[] fields = bindingAttr.HasValue ? type.GetFields(bindingAttr.Value) : type.GetFields();            Array.ForEach(fields, x => result.Add(x.Name, x.GetValue(obj)));            return result;        }        public static bool HasKey(this Type type, string key, BindingFlags? propBindingAttr = null, BindingFlags? fieldBindingAttr = null)        {            return type.Keys(propBindingAttr, fieldBindingAttr).Contains(key);        }        public static object GetValue(this Type type, string key, object obj, BindingFlags? propBindingAttr = null, BindingFlags? fieldBindingAttr = null)        {            IDictionary<string, object> propertyKeyValueList = PropertyKeyValueList(type, obj, propBindingAttr);            if (propertyKeyValueList.ContainsKey(key))            {                return propertyKeyValueList[key];            }            IDictionary<string, object> fieldKeyValueList = FieldKeyValueList(type, obj, fieldBindingAttr);            if (fieldKeyValueList.ContainsKey(key))            {                return fieldKeyValueList[key];            }            return null;        }    }}

 

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C#反射方法擴充