我想我已經找到了ASP.NET MVC控制器的參數人口ASP.NET MVC模型綁定錯誤
public JsonResult Lookup(
string q_word, string primary_key,
int per_page, int page_num)
如果q_word公佈值是空字符串錯誤,q_word會收到一個空字符串。而如果將這些參數打包在一起(DRY原則),則行爲不同,空字符串將變爲空。
public class LookupArg
{
public string q_word { get; set; }
public string primary_key { get; set; }
public int per_page { get; set; }
public int page_num { get; set; }
public string another_word { get; set; }
}
public JsonResult TesterA(
string q_word, string another_word, string primary_key,
int per_page, int page_num)
{
return Json(
new { q_word, primary_key, per_page, page_num, another_word},
JsonRequestBehavior.AllowGet);
}
public JsonResult TesterB(LookupArg la)
{
return Json(
new { la.q_word, la.primary_key, la.per_page, la.page_num,
la.another_word },
JsonRequestBehavior.AllowGet);
}
http://localhost:19829/Product/TesterA?q_word=&primary_key=id&per_page=10&page_num=1&another_word= 有這樣的輸出:
{"q_word":"","primary_key":"id","per_page":10,"page_num":1,"another_word":""}
http://localhost:19829/Product/TesterB?q_word=&primary_key=id&per_page=10&page_num=1&another_word= 有這樣的輸出:
{"q_word":null,"primary_key":"id","per_page":10,"page_num":1,"another_word":null}
我想這太,但無濟於事,相同的輸出,q_word和another_word是仍爲空
public JsonResult TesterB(
[Bind(Include = "q_word, primary_key, per_page, page_num, another_word")]
LookupArg la)
預計這種行爲?通過設計?如果價值來自對象或者不對,應該有什麼區別嗎?
那麼,工程:-)你是否有任何文章的鏈接,解釋一個字符串的基本原理,如果它是在對象 – Hao