.net的WebForm模拟MVC进行模型绑定，让自己少操劳

public class DataModel
{

    /// <summary>
    /// 从表单提交的数据中绑定model模型的值
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="entity"></param>
    /// <returns></returns>
    public static T ModelBing<T>(T entity)
    {
        object obj = Activator.CreateInstance(typeof(T));
        Type type = entity.GetType();
        PropertyInfo[] proInfos = type.GetProperties();
        Dictionary<string, PropertyInfo> dic = new System.Collections.Generic.Dictionary<string, PropertyInfo>();
        for (int i = 0; i < proInfos.Length; i++)
        {
            dic.Add(proInfos[i].Name, proInfos[i]);
        }
        HttpContext context = HttpContext.Current;
        var form = context.Request.Form;
        string[] keys = form.AllKeys;

        foreach (string key in keys)
        {

            if (dic.ContainsKey(key))
            {
                PropertyInfo pInfo = dic[key];
                var proType = pInfo.PropertyType;
                object value = null;//存储转换对应类型后的值

                if (string.IsNullOrEmpty(form[key]))//当post过来的值没有的时候
                {
                    if (proType == typeof(string))  //判断该属性是否string类型给空字符串，因为我数据库该字段不允许为null
                    {                                 //这里我不对值类型的数据进行判断了，因为值类型会有默认值
                        pInfo.SetValue(obj, "", null);
                    }                                       
                    continue;
                }
                try
                {
                    if (proType.IsEnum)//如果属性是枚举类型，转换枚举类型
                    {
                        value = Enum.ToObject(proType, form[key]);

                    }
                    else if (proType.IsGenericType && proType.Name.StartsWith("Nullable"))//泛型类型
                    {
                        Type newproType = Nullable.GetUnderlyingType(proType);

                        value = Convert.ChangeType(form[key], newproType);
                    }
                    else
                    {
                        value = Convert.ChangeType(form[key], proType);
                    }

                    pInfo.SetValue(obj, value, null);
                }
                catch (Exception ex)
                {

                    throw ex;//写入错误日志
                }


            }
        }
        return (T)obj;
    }
}