js判斷是否具有某id的input並取值.(for權限之後端檢核設計一環)

by cactus77kiki

HTML

<!--<input id="test" type="text">-->
<button type="button" onclick="getval()">
get value
</button>

<script>
function getval(){
	var data= document.getElementById("test");
  console.log(data);
  if(data)
  {
  	console.log(data.value);  
  }else{  	
  	console.log('has error');
  }
  
	//alert(data);
  
  console.log('abc');
}
</script>

JavaScript

/*
1. bug fix
    (1) AuthGetActionFilter
          (a)null或者0時皆無權限=>Error Page
          (b)ViewBag.pgId =>此時賦予
    (2) NAgent1mController.Agent()
          ViewBag.pgId=>已在(1)賦值，不再給值
1. button權限調整程式
    (1) agentsystem.js
         新增全域變數，js : getElementBiId("pgId")
    (2) common.js
         (*)ajaxPost : 新增傳送httpheader，內容為(1)之值(取值參考上方js code)
         ref: http://blog.onepic.cc/2018/10/ajax-%E5%A6%82%E4%BD%95%E8%A3%BD%E4%BD%9C-header-%E5%82%B3%E9%80%81%E5%8F%8A%E6%8E%A5%E6%94%B6%E8%B3%87%E6%96%99%E4%BB%A5%E5%8F%8A-cors-%E5%95%8F%E9%A1%8C/
    (3) AuthCheckActionFilter.cs
         (*)移除prgid之屬性，改抓httpheader內容，若空=>Error、或不處理，直接結束程式(?)
         rror、或不處理，直接結束程式(?)
         改包try catch處理(?)
         ref: https://forums.asp.net/t/1991328.aspx?Reading+HTTP+Header+in+MVC+5
    (4) NAgent1mController.UpdateAgent()
         所貼之[AuthCheckActionFilter]標籤，傳入之參數=欲檢核之權限值
*/