JavaScript调试器无法正常工作 [英] JavaScript debugger not working

问题描述

我想在VS2010中调试文本框keyPress / keyDown事件。但是，当我单击某个键时，不会触发函数ontxtPID（event）。我错过了什么？谢谢。

 <   asp：TextBox  < span class =code-attribute>   ID   =  txtPID    ClientID   =   txtPID    runat   =  server    class   =  styleTextBox1   工具提示  =  7个字符，例如A03B001    onkeyDow n   =  ontxtPID（event）;    onkeyPress   =  ontxtPID（event） ;    MaxLength   =  7    MinLength   =  7   >  <   / asp：TextBox  >  
 
 ... 
 <   script     type   = <小号pan class =code-keyword> text / javascript >  
  function  ontxtPID（event）{
  debugger ; 
  var  v =  document  .getElementById（'   lblWarning'）; 
  if （v！=  null ）{
 v.innerHTML = ' '; 
} 
 
  var  e1 =  document  .getElementById（' <％= txtPID.ClientID％>'）。value; 
  if （e1.length ==  7 ）{
  if （event.keyCode ==  13 ）{ //   RETURN  
 event.keyCode =  9 ;  //   TAB  
  return  event.keyCode; 
}  else  {
  document  .getElementById（'  txtPID'）。focus（）; 
} 
} 
} 
 <   /   script  >  

解决方案

 onkeyDown =   ontxtPID（event） 

除非在其他地方定义事件，否则在事件发生时可能未定义，因此在调用函数之前失败。

用值替换事件并重试或者只是删除它，因为事件代码可能是自动的。

< pre lang =java> onkeyDown = ontxtPID（）;

I want to debug a textbox keyPress / keyDown event in VS2010. However, when I click a key, the function ontxtPID(event) is not fired. Did I miss something? Thanks.

    <asp:TextBox ID="txtPID" ClientID="txtPID" runat="server" class="styleTextBox1" ToolTip="7 Characters, e.g. A03B001" onkeyDown="ontxtPID(event);" onkeyPress="ontxtPID(event);" MaxLength="7" MinLength="7" ></asp:TextBox>

...
    <script type="text/javascript">
        function ontxtPID(event) {
            debugger;
            var v = document.getElementById('lblWarning');
            if (v != null) {
                v.innerHTML = '';
            }

            var e1 = document.getElementById('<%=txtPID.ClientID%>').value;
            if (e1.length == 7) {
                if (event.keyCode == 13) {      // RETURN
                    event.keyCode = 9;          // TAB
                    return event.keyCode;
                }   else {
                    document.getElementById('txtPID').focus();
                }
            }
        }
    </script>

解决方案

onkeyDown="ontxtPID(event)

Unless event is defined somewhere else, if likely to be undefined at time of event, thus failing before calling the function.
Replace event with a value and try again or simply remove it since the event code is probably automatic.

onkeyDown="ontxtPID();"

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