如何在javascript中有条件地应用requirefield [英] How to apply requirefield conditionally in javascript

问题描述

嘿伙计们，



我是6个文本框 - > 3个用于手机，3个用于手机。



i使用客户端验证，如



if（phone1 == ）

{

显示错误信息..

}


现在
问题是什么



一次只能对一件事进行工作验证

例如 - 如果单元格文本框为空则需要手机< br $> b $ b

和单元号如果手机短信片空白则需要..





i我正在使用以下方法...

 其他  if （EmergencyPhone1 ==  ）{
 
 document.getElementById（'  ContentPlaceHolder2_lblShowError'）。style.display = '  inline'; 
 document.getElementById（'  ctl00_ContentPlaceHolder2_txtEmergencyPhone1'）。focus（）; 
  //   document.getElementById（'ctl00_ContentPlaceHolder2_txtEmergencyPhone1'）。style.borderColor =Red;  
 flag =  false ; 
} 
 
  else   if （EmergencyPhone2 ==  ）{
 
 document.getElementById（'  ContentPlaceHolder2_lblShowError'）。style.display = ' 直列'; 
 document.getElementById（'  ctl00_ContentPlaceHolder2_txtEmergencyPhone2'）。focus（）; 
  //   document.getElementById（'ctl00_ContentPlaceHolder2_txtEmergencyPhone2'）。style.borderColor =Red;  
 flag =  false ; 
} 
 
  else   if （EmergencyPhone3 ==  ）{
 
 document.getElementById（'  ContentPlaceHolder2_lblShowError'）。style.display = ' 直列'; 
 document.getElementById（'  ctl00_ContentPlaceHolder2_txtEmergencyPhone3'）。focus（）; 
  //   document.getElementById（'ctl00_ContentPlaceHolder2_txtEmergencyPhone3'）。style.borderColor =Red;  
 flag =  false ; 
} 
 
  else   if （EmergencyCell1 ==  ）{
 
 document.getElementById（'  ContentPlaceHolder2_lblShowError'）。style.display = ' 直列'; 
 document.getElementById（'  ctl00_ContentPlaceHolder2_txtEmergencyCell1'）。focus（）; 
 flag =  false ; 
} 
 
  else   if （EmergencyCell2 ==  ）{
 
 document.getElementById（'  ContentPlaceHolder2_lblShowError'）。style.display = ' 直列'; 
 document.getElementById（'  ctl00_ContentPlaceHolder2_txtEmergencyCell2'）。focus（）; 
 flag =  false ; 
} 
 
  else   if （EmergencyCell3 ==  ）{
 
 document.getElementById（'  ContentPlaceHolder2_lblShowError'）。style.display = ' 直列'; 
 document.getElementById（'  ctl00_ContentPlaceHolder2_txtEmergencyCell3'）。focus（）; 
 flag =  false ; 
} 

请帮帮我..的急。

解决方案

你好，

你应该使用javascript ValidatorEnable（）方法。

示例：

ValidatorEnable（

（＃your_validator_id），false）

if（（EmergencyPhone1！=&& EmergencyPhone2 ！=&& EmergencyPhone3！=||（EmergencyCell1！=&& EmergencyCell2！=&& EmergencyCell3！=））{return true;}



其他

{返回false并根据condioning设置焦点。}

hey guys,

I am 6 textboxes-> 3 for phone and 3 for cell.

i using clientside validation like

if(phone1=="")
{
show error message..
}

now problem is what

there should work validation for one thing at a time
for example--phone is required if cell textboxes are empty

and cell no. is required if phone texboxes are blank..


i am using following approach to do so...

else if (EmergencyPhone1 == "") {

                           document.getElementById('ContentPlaceHolder2_lblShowError').style.display = 'inline';
                           document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyPhone1').focus();
                           //  document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyPhone1').style.borderColor = "Red";
                           flag = false;
                       }

                       else if (EmergencyPhone2 == "") {

                           document.getElementById('ContentPlaceHolder2_lblShowError').style.display = 'inline';
                           document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyPhone2').focus();
                           //  document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyPhone2').style.borderColor = "Red";
                           flag = false;
                       }

                       else if (EmergencyPhone3 == "") {

                           document.getElementById('ContentPlaceHolder2_lblShowError').style.display = 'inline';
                           document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyPhone3').focus();
                           //  document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyPhone3').style.borderColor = "Red";
                           flag = false;
                       }

                       else if (EmergencyCell1 == "") {

                           document.getElementById('ContentPlaceHolder2_lblShowError').style.display = 'inline';
                           document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyCell1').focus();
                           flag = false;
                       }

                       else if (EmergencyCell2 == "") {

                           document.getElementById('ContentPlaceHolder2_lblShowError').style.display = 'inline';
                           document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyCell2').focus();
                           flag = false;
                       }

                       else if (EmergencyCell3 == "") {

                           document.getElementById('ContentPlaceHolder2_lblShowError').style.display = 'inline';
                           document.getElementById('ctl00_ContentPlaceHolder2_txtEmergencyCell3').focus();
                           flag = false;
                       }

please help me ..it's urgent.

解决方案

Hello,
You should use the javascript ValidatorEnable() method.
Example :
ValidatorEnable(

("#your_validator_id"), false)

if ((EmergencyPhone1 != "" && EmergencyPhone2 != "" && EmergencyPhone3 != "" || (EmergencyCell1 != "" && EmergencyCell2 != "" && EmergencyCell3 != "")){return true;}

else
{return false and set focus on the basis of condioning.}

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