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178 lines
6.8 KiB
178 lines
6.8 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Reflection;
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namespace Utils.Refelector
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{
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public class ReflectionUtil
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{
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public static TResult GetPrivateField<TClass, TResult>(TClass obj, string field)
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{
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Type type = obj.GetType();
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var privateField = type.GetField(field, BindingFlags.Instance | BindingFlags.GetField | BindingFlags.NonPublic | BindingFlags.ExactBinding);
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return (TResult)privateField.GetValue(obj);
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}
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/// <summary>
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/// 执行静态非公有方法。
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/// <para>当方法有重载时，该方法报错，需要使用指定了参数类型的那个方法</para>
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/// <para>即：ExecuteStaticFunc(Type type, string func, Type[] types, params object[] parameters)</para>
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/// </summary>
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/// <param name="type">方法所在类的类型</param>
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/// <param name="func">方法名</param>
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/// <param name="parameters">参数</param>
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public static object ExecuteNotPublicStaticFunc(Type type, string func, params object[] parameters)
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{
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return type.GetMethod(func, BindingFlags.NonPublic | BindingFlags.InvokeMethod | BindingFlags.Static).Invoke(null, parameters);
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}
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/// <summary>
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/// 执行静态非公有方法
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/// </summary>
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/// <param name="type">方法所在类的类型</param>
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/// <param name="func">方法名</param>
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/// <param name="types">方法的参数的类型，其顺序为方法的参数的顺序</param>
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/// <param name="parameters">参数</param>
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public static object ExecuteNotPublicStaticFunc(Type type, string func, Type[] types, params object[] parameters)
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{
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if (types.Length != parameters.Length)
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throw new ArgumentException("第三个参数和后面的参数的个数不匹配");
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var methods = type.GetMethods(BindingFlags.Static | BindingFlags.NonPublic);
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return GetMethod(methods, types).Invoke(null, parameters);
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}
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/// <summary>
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/// 从指定的方法数组中，找出方法的参数的Type为指定Type的方法。
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/// <para>即：找出参数类型的Type的个数与顺序符合本方法第二个参数的方法。</para>
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/// <para>没找到则返回null</para>
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/// </summary>
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public static MethodInfo GetMethod(MethodInfo[] methods, Type[] types)
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{
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foreach (var item in methods) {
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var param = item.GetParameters();
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if (param.Length != types.Length)
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continue;
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bool tatolSame = true;
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for (int i = 0; i < types.Length; i++) {
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if (types[i] != param[i].ParameterType) {
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tatolSame = false;
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break;
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}
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}
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if (tatolSame)
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return item;
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}
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return null;
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}
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//public static PropertyInfo[] GetField<TClass>(TClass obj)
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//{
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// var type = obj.GetType();
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// return type.GetProperties();
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//}
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//public static void SetValue<TClass>(TClass obj)
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//{
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// var properties = GetField(obj);
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// properties[0].SetValue(obj, "", null);
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//}
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/// <summary>
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/// 获取公共属性的值。
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/// <para>忽略索引。如：public char this[int index] { get; }</para>
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/// <para>忽略不可读的属性</para>
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/// </summary>
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public static Dictionary<string, object> GetPublicPropertyValues<TClass>(TClass obj)
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{
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Dictionary<string, object> result = new Dictionary<string, object>();
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if (obj == null)
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return result;
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var properties = obj.GetType().GetProperties();
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foreach (var field in properties) {
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if (field.GetIndexParameters().Length > 0)//如果是索引，则忽略。索引：public char this[int index] { get; }
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continue;
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if (!field.CanRead)
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continue;
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result.Add(field.Name, field.GetValue(obj, null));
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}
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return result;
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}
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/// <summary>
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/// 设置指定对象的值为values
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/// <para>忽略索引。如：public char this[int index] { get; }</para>
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/// <para>忽略不可写的属性</para>
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/// </summary>
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public static void SetValues<TClass, TValue>(TClass obj, Dictionary<string, TValue> values)
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{
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if (obj == null)
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return;
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if (values == null || values.Count == 0)
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return;
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var dmoType = obj.GetType();
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var properties = dmoType.GetProperties();
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foreach (var field in properties) {
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if (field.GetIndexParameters().Length > 0)//如果是索引，则忽略。索引：public char this[int index] { get; }
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continue;
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if (!field.CanWrite)
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continue;
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var propertyType = dmoType.GetProperty(field.Name).PropertyType;
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if (values.Keys.Contains(field.Name)) {
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object value = values[field.Name];
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if (value == null || !propertyType.Equals(value.GetType())) {
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value = ChangeType(propertyType, value);
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}
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dmoType.GetProperty(field.Name).SetValue(obj, value, null);
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}
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}
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}
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private static object ChangeType(Type propertyType, object value)
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{//TODO:这个是为了处理在设置清单的值时，由于给定的值的类型是string类型，导致在设置值时类型不正确。之所以“给定的值的类型是string类型”，是因为在CommanRow类中，获取控件值时返回的类型是string（public string this[string field]的这个）。如果能解决上述问题，则不需要这个方法，引用这个方法的地方，也就可以修改之o
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if (propertyType.Equals(typeof(long))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return 0;
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return long.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(long?))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return null;
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return long.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(int))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return 0;
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return int.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(int?))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return null;
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return int.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(decimal))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return 0;
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return decimal.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(decimal?))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return null;
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return decimal.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(bool))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return false;
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return bool.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(bool?))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return null;
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return bool.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(DateTime))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return DateTime.Now;//TODO:如何处理？
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return bool.Parse(value.ToString());
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} else if (propertyType.Equals(typeof(DateTime?))) {
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if (value == null || string.IsNullOrEmpty(value.ToString()))
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return null;
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return DateTime.Parse(value.ToString());
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} else
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throw new ApplicationException("未处理");
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}
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}
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}
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