在Mozilla中使用materpage的mypage中，javascript keypress/keydown事件不起作用 [英] javascript keypress/keydown event is not working in mypage which is using materpage in Mozilla

问题描述

我的代码如下，如果我使用与母版页相同的代码，则可以正常工作，但是使用母版页，
它没有调用keypress/keydown事件.

My code is as follows, if i use the same code wihtout master page, it is working, but with master page,
it is not calling keypress/keydown event.

<%@ Page Title="Home Page" Language="VB" MasterPageFile="~/Site.Master" AutoEventWireup="false"

    CodeFile="Default.aspx.vb" Inherits="_Default" %>


<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
    <script language="javascript" type="text/jscript" >
        function test() {
        alert("hai");
    }
    </script>
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
   <asp:TextBox ID="emptxtbox" Text="" MaxLength="4" runat="server"

                                                    onkeydown="return test();" Width="200px" Height="50px"

                                                    Font-Size="XX-Large" />
</asp:Content>

推荐答案

请参考类似的讨论:
按键事件在mozilla Firefox中不起作用 [ ^ ]
onkeypress()不起作用 [ jQuery keypress()事件未触发 [ JavaScript疯狂:键盘事件 [

Please refer similar discussion:
Key press event is not working in mozilla fire fox[^]
onkeypress() not working[^]
jQuery keypress() event not firing[^]

Have a look on: JavaScript Madness: Keyboard Events[^] for more information.

尝试一下，这两种方法都可以使用:

try this , it works in both:

function isNumericKeyStroke(evt) {
           var returnValue = false;
           var charCode = (window.Event) ? evt.which : evt.keyCode
           if (((charCode >= 48) && (charCode <= 57)) || // All numerics
          (charCode == 8) ||     // Backspace
          (charCode == 13))     // Carriage Return
           {
               returnValue = true;
           }
          return returnValue;
       }

这是一个已知问题，并且 window.event.keycode 13韩元"无法在Firefox中工作 [^ ]

另一个有用的链接: http://www.ryancooper.com/resources/keycode.asp [ ^ ]

It is a known issue and multiple discussions[^] can be found on internet.

FF doesn''t use window.event for keypress, but expects the event to be passed as a parameter to the function handling it
Look ''Fang'' answer here for similar discussion on how to handle it: window.event.keycode 13 won''t work in Firefox[^]

Another link that will help: http://www.ryancooper.com/resources/keycode.asp[^]

这篇关于在Mozilla中使用materpage的mypage中，javascript keypress/keydown事件不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！