onkeypress of textbox not working in IE when del key is pressed

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Hi all,

i have a asp.net textbox in gridview control problem im having is that "onkeypress" event is not working in IE when user pres DEL key from keyboard its working on other keys my code is as follows

XML

<asp:TextBox CssClass="InputBox"  onkeypress="return isValidKey(event)" ID="txtRefundAmount" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Amount") %>'></asp:TextBox>

C#

function isValidKey(e) {
            return false;
        }

i just simply want to prevent user from modifying textbox value. this can be done by setting textbox property readonly=true or enable=false but in my case another java script function is updating value this textbox and if i make it readonly or disable updated value at run time is not posted on server when saving data

Posted 6-Feb-12 19:17pm

kashif Atiq

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zyck · Accepted Answer · 2012-02-06T19:37:00

Solution 1

try this

HTML

function isValidKey(e) { 
    
  var charCode = e.keyCode || e.which;     
  if (charCode == 8 || charCode == 46)         
      return false;      

return true; 
}  

<input id="tb_box" onkeydown="return isValidKey(event)" type="text" />

Posted 6-Feb-12 19:37pm

zyck

Comments

kashif Atiq 7-Feb-12 2:13am

thanks zyck i have already found the solution on internet that onkeypress will not work on IE in my case so i have to use onkeydown event as mentioned in your answer.
anyways thanks for the reply

zyck 7-Feb-12 2:54am

oki thanks