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QiShunwang

“诚信为本、客户至上”

将object对象转换为实体对象

2020/8/20 14:25:14   来源:
/// <summary>
	/// 将object对象转换为实体对象
	/// </summary>
	/// <typeparam name="T">实体对象类名</typeparam>
	/// <param name="asObject">object对象</param>
	/// <returns></returns>
	private T ConvertObject<T>(object asObject) where T : new()
	{
		//创建实体对象实例
		var t = Activator.CreateInstance<T>();
		if (asObject != null)
		{
			Type type = asObject.GetType();
			//遍历实体对象属性
			foreach (var info in typeof(T).GetProperties())
			{
				object obj = null;
				//取得object对象中此属性的值
				var val = type.GetProperty(info.Name)?.GetValue(asObject);
				if (val != null)
				{
					//非泛型
					if (!info.PropertyType.IsGenericType)
						obj = Convert.ChangeType(val, info.PropertyType);
					else//泛型Nullable<>
					{
						Type genericTypeDefinition = info.PropertyType.GetGenericTypeDefinition();
						if (genericTypeDefinition == typeof(Nullable<>))
						{
							obj = Convert.ChangeType(val, Nullable.GetUnderlyingType(info.PropertyType));
						}
						else
						{
							obj = Convert.ChangeType(val, info.PropertyType);
						}
					}
					info.SetValue(t, obj, null);
				}
			}
		}
		return t;
	}