如果使用Javascript按钮是可见的，如何重置文本框。实际上我无法检查按钮是否可见 [英] How To Reset Textboxes If Button Is Visible Using Javascript.Actually I Am Not Able To Check Whether Button Is Visible Or Not

问题描述

< script type =   text / javascript> ; 
  function  DoCancel（）{
  var  txtCourierNo =  document  .getElementById（  txtCourierNo）; 
  var  Reason =  document  .getElementById（   txtReason）
  var  btnreject =  document  .getElementById（  btnreject）; 
  var  btnCourier =  document  .getElementById（   btnCourier）; 
 
  if （btnreject.visible ==  true ）{
 Reason.value =  ; 
} 
 其他 如果（btnCourier.visible ==  true ）{
 txtCourierNo.value =   ; 
} 
 
 
 
} 
 
< / script> 

解决方案

试试这个

 btnCourier.style.visibility 

或

（btnCourier.style.display ==none）
 {
 txtCourierNo.value =; 
} 
其他
 Reason.value =; 

详情此链接可以是有用的

http://stackoverflow.com/questions/7998060 / asp-net-button-visibility-using-javascript [ ^ ]

查看w3cschool引用：

http://www.w3schools.com/jsref/prop_style_visibility.asp [ ^ ]



此外，请查看jquery！易于学习，将使您的生活更轻松:-)

http://jquery.com/ [ ^ ]



祝你好运！

<script type="text/javascript">
      function DoCancel() {
          var txtCourierNo = document.getElementById("txtCourierNo");
          var Reason = document.getElementById("txtReason")
          var btnreject = document.getElementById("btnreject");
          var btnCourier = document.getElementById("btnCourier");
         
          if (btnreject.visible==true) {
              Reason.value = "";
          }
          else if (btnCourier.visible==true) {
              txtCourierNo.value = "";
          }
          
          
          
      }

    </script>

解决方案

try this

btnCourier.style.visibility

or

(btnCourier.style.display == "none")
{
txtCourierNo.value = "";
}
else
Reason.value = "";

for detail this link can be usefull
http://stackoverflow.com/questions/7998060/asp-net-button-visibility-using-javascript[^]

Check out the w3cschool reference:
http://www.w3schools.com/jsref/prop_style_visibility.asp[^]

Also, check out jquery! Easy to learn and will make your life a lot easier :-)
http://jquery.com/[^]

Good luck!

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