如何获取点击了哪个按钮？

Question

我想在单击特定按钮时检查某些情况如何执行此操作？

 $(document).ready(function () {
         var prm = Sys.WebForms.PageRequestManager.getInstance();
         prm.add_initializeRequest(InitializeRequest);
         prm.add_endRequest(EndRequest);
         Search("Other");


     });

     function InitializeRequest(sender, args) {
     }

     function EndRequest(sender, args) {
         alert(sender._postBackSettings.sourceElement.id)
         var str1 = new String(sender._postBackSettings.sourceElement.id);
         if (sender._postBackSettings.sourceElement.id == ContentPlaceHolder1_btnNew) {
             alert("You have clicked new")
             Search("NEW"); 
         }

         else {
         alert("OTHERS")
             Search("Other");
          }


     }

Answer 1

我通过将它分配给一个字符串值并将 if 条件作为字符串检查来得到解决方案。

 $(document).ready(function () {
         var prm = Sys.WebForms.PageRequestManager.getInstance();
         prm.add_initializeRequest(InitializeRequest);
         prm.add_endRequest(EndRequest);
         Search("Other");


     });

     function InitializeRequest(sender, args) {

     }

   function EndRequest(sender, args) {

         var str1 = new String(sender._postBackSettings.sourceElement.id);

         if (str1 == "ContentPlaceHolder1_btnNew") {                
            alert("You have clicked new")
         }

         else {
          alert("You have clicked others")
         }

     }

Answer 2

如果您有很多按钮，请给它们一个相同的类名。例如：class="myButton" 关于特定按钮的信息可以保存在其属性中。例如：objectId="12345" 那么你的代码可以如下：

$(".myButton").click(function(){
       console.log($(this)); // this gives you the DOM Object of the button which is clicked
       // now to get the attribute of the button i.e objectId you can do this
       $(this).attr("objectId");
       /* Depending on this you can handle your condition */
    });

如果你的按钮是动态创建的，你可以使用这个

$(".myButton").live('click', function(){
           console.log($(this)); // this gives you the DOM Object of the button which is clicked
           // now to get the attribute of the button i.e objectId you can do this
           $(this).attr("objectId");
           /* Depending on this you can handle your condition */
        });

Jquery 1.7.2 以上的版本不推荐使用 live。

你可以用“on”代替它。

Answer 3

试试这个代码：

$(document).ready(function() {

    $("#btnSubmit").click(function(){
        // Call here that function which you want to call
    }); 
});

阅读此链接：http://api.jquery.com/click/