Allow Only Numbers in Textbox Using Javascript -II [Cross Browser Compatible]
I have already written a similar Post related to the above requirement over here:
So Here I am with another method with Alert Functionality and which is Cross Browser Compatible:
<html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Allow Only Numbers</title> <SCRIPT language=Javascript> <!-- function isNumberKey(evt) { var charCode = (evt.which) ? evt.which : event.keyCode if (charCode > 31 && (charCode < 48 || charCode > 57)) { alert("Please Enter Only Numbers!"); return false; } else { return true; } } //--> </SCRIPT> </head> <body> <form id="form1" runat="server"> <div> <asp:TextBox ID="txt_maxage" Onkeypress="return isNumberKey(event)" runat="server"></asp:TextBox> </div> </form> </body> </html>
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