using System.Reflection;
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namespace CmsQueryExtensions.Extension
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{
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/// <summary>
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/// 类帮助
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/// </summary>
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public class ClassHelper
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{
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/// <summary>
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/// 实体互转
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/// </summary>
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/// <typeparam name="T">新转换的实体</typeparam>
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/// <typeparam name="S">要转换的实体</typeparam>
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/// <param name="s"></param>
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/// <returns></returns>
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public static T RotationMapping<T, S>(S s)
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{
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T target = Activator.CreateInstance<T>();
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var originalObj = s.GetType();
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var targetObj = typeof(T);
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foreach (PropertyInfo original in originalObj.GetProperties())
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{
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foreach (PropertyInfo t in targetObj.GetProperties())
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{
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if (t.Name == original.Name)
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{
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t.SetValue(target, original.GetValue(s, null), null);
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}
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}
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}
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return target;
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}
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/// <summary>
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/// 获取属性对象列表
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="proName"></param>
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/// <param name="errMsg"></param>
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/// <returns></returns>
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public static PropertyInfo[] GetPropertyInfoList<T>(T t)
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{
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var pros = typeof(T).GetProperties();
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return pros;
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}
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/// <summary>
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/// 获取属性对象
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="proName"></param>
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/// <param name="errMsg"></param>
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/// <returns></returns>
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public static PropertyInfo GetPropertyInfo<T>(T t, string proName, out string errMsg)
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{
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errMsg = "";
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var pro = typeof(T).GetProperty(proName);
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if (pro == null)
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{
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errMsg = "属性名'" + proName + "'不存在类'" + typeof(T).Name + "'中";
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return null;
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}
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return pro;
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}
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/// <summary>
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/// 获取属性的值
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="proName"></param>
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/// <param name="errMsg"></param>
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/// <returns></returns>
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public static string GetPropertyValue<T>(T t, string proName, out string errMsg)
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{
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var pro = GetPropertyInfo(t, proName, out errMsg);
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if (!string.IsNullOrEmpty(errMsg))
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{
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return string.Empty;
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}
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var pro_value = pro.GetValue(t, null);
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var str = pro_value == null ? string.Empty : Convert.ToString(pro_value);
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return str;
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}
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/// <summary>
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/// 获取属性的值
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="proName"></param>
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/// <param name="errMsg"></param>
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/// <returns></returns>
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public static object GetPropertyValueForReObject<T>(T t, string proName, out string errMsg)
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{
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var pro = GetPropertyInfo(t, proName, out errMsg);
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if (!string.IsNullOrEmpty(errMsg))
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{
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return null;
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}
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var pro_value = pro.GetValue(t, null);
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var str = pro_value == null ? null : (pro_value);
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return str;
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}
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/// <summary>
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/// 通过属性对象获取属性的值
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="pro"></param>
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/// <returns></returns>
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public static string GetPropertyValueByObject<T>(T t, PropertyInfo pro)
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{
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var pro_value = pro.GetValue(t, null);
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var str = pro_value == null ? string.Empty : Convert.ToString(pro_value);
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return str;
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}
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/// <summary>
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/// 通过属性对象获取属性的值
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="pro"></param>
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/// <returns></returns>
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public static object GetPropertyValue<T>(T t, PropertyInfo pro)
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{
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var pro_value = pro.GetValue(t, null);
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return pro_value;
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}
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/// <summary>
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/// 获取特性【高级查询范围查询特性】
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="pro"></param>
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/// <returns></returns>
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public static object[] GetHighSearchRangeAttributeByPro(PropertyInfo pro)
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{
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object[] Attributes = pro.GetCustomAttributes(typeof(HighSearchRangeAttribute), false);
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return Attributes;
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}
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/// <summary>
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/// 获取特性【不自动查询特性】
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="pro"></param>
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/// <returns></returns>
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public static bool IsExistNoAutoQueryAttribute(PropertyInfo pro)
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{
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object[] attributes = pro.GetCustomAttributes(typeof(NoAutoQueryAttribute), false);
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if (attributes.Length > 0)
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{
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return true;
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}
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return false;
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}
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/// <summary>
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/// 获取属性的值
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <param name="proName"></param>
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/// <param name="errMsg"></param>
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/// <returns></returns>
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public static List<string> GetPropertyValueForList<T>(T t, string proName, out string errMsg)
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{
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var pro = GetPropertyInfo(t, proName, out errMsg);
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if (!string.IsNullOrEmpty(errMsg))
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{
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return null;
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}
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var pro_value = pro.GetValue(t, null);
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var list = pro_value == null ? null : (List<string>)pro_value;
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return list;
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}
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}
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}
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