javascript-以oracle apex表格形式的动态计算：sys.htp.p

我有表格形式,其中col1和col2是数字,而col3应该包含col1和col2之间的区别.

col1已经有数据并且col 1是可编辑的,基于col1的更改,col3数据将动态更改.

为了实现这一点,我使用了ajax回调过程和JavaScript,但是问题是当差异为0.xx -0.xx时,我得到了解析错误.
我能够在col3中打印的其他值.

Declare    
p_curr  number;    
p_prev    number;    
p_diff number;    

Begin    
 p_prev    := to_number(apex_application.g_x01);    
 p_curr    := to_number(apex_application.g_x02);    

   SELECT p_curr - p_prev into p_diff    
   from dual;    

  -- return calculated value  
   sys.htp.p(p_diff);    
 End;  

–JavaScript

 function f_CALC_DIFF(pThis) {    

 var row_id     = pThis.id.substr(4);    
 var s          = $('#f18_'+row_id).val().replace(/[^\d.-]/g, '');   
 var curr       = $(pThis).val().replace(/[^\d.-]/g, '');   

 if(!s){  
  var s= 0;  
  var prev = s;}  
else{  
  var prev = s;}  

apex.server.process   
( "CALC_DIFF", { x01: prev, x02: curr },   
{ success: function( pData ) {   
$('#f23_'+row_id).val(pData);}}  
);    
}   

请为上述问题提出解决方案.

我正在使用Oracle Apex 4.2版

解决方法:

与其使用昂贵的AJAX调用数据库,不如使用JavaScript.

function f_CALC_DIFF(pThis) {    

 var row_id     = pThis.id.substr(4);    
 var s          = $('#f18_'+row_id).val().replace(/[^\d.-]/g, '');   
 var curr       = $(pThis).val().replace(/[^\d.-]/g, '');   

if(!s){  
var s= 0;  
var prev = s;}    
else{  
var prev = s;}  

  var diff = 0; 
 diff = (curr - prev);
 var n = diff.toFixed(2);
 alert (n);
 $('#f23_'+row_id).val(n);

// Please remove the AJAX call to database.
 /*apex.server.process   
( "CALC_DIFF", { x01: prev, x02: curr },   
{ success: function( pData ) {   
$('#f23_'+row_id).val(pData);}}  
);    
}   */

标签：oracle-apex,oracle,javascript,tabular-form
来源： https://codeday.me/bug/20191119/2034303.html