keypress event not fired for pressing TAB or ENTER or BACK

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3.00/5 (1 vote)

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For a asp.net control below,

ASP.NET

<asp:TextBox ID="txtUser" runat="server" Font-Size="Small"  AutoPostBack="true" 
     TabIndex="2" Width="150px" 
     onkeypress="getFocus(event);" ></asp:TextBox>
...
function getFocus(event) {
   var chCode = ('charCode' in event) ? event.charCode : event.keyCode;
   //if (chcode == 9 || chcode = 13) {  // Tab or Enter
   //    document.getElementById("txtPassword").focus();
   //}
}

the keypress event fires if I click any key except for the TAB, BACK and ENTER keys. What's wrong in my code? Thanks.

Posted 26-Mar-15 4:27am

s yu

Updated 26-Mar-15 5:02am

v2

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Sergey Alexandrovich Kryukov · Accepted Answer · 2015-03-26T04:41:00

Solution 1

This is because these keys don't invoke this event at all; the event onkeypress is not invoked on all key presses, but mostly when a character is input (but also, say, Backspace considered as code point #8). You can use the events keydown, keyup, onblure (instead of Tab), on onfocus (instead of Tab):
http://www.w3schools.com/tags/ref_eventattributes.asp[^],
http://www.w3schools.com/tags/ev_onkeypress.asp[^].

—SA

Posted 26-Mar-15 4:41am

Sergey Alexandrovich Kryukov

Updated 26-Mar-15 6:05am

v2

Comments

s yu 26-Mar-15 11:44am

SA: Per your provided solution, I use onkeydown:
onkeydown="if(event.keyCode==13){event.keyCode=9; return event.keyCode}"
to solve this problem.
Thanks again.

Sergey Alexandrovich Kryukov 26-Mar-15 12:06pm

Great. For Tab, you may want to consider onblur (typo fixed) and/or onfocus, depending on what you want to achieve.
—SA