title: onkeyup client event issues on telerik input controls
body: <p>i want to copy a textbox text property to another when typing (should be exactly the same)...<br>
  so please see the below codes (copy and paste and Test them) :  </p>
  
  <pre><code>&lt;%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="keyup.Default" %&gt;
  
  &lt;%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %&gt;
  &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
  &lt;head runat="server"&gt;
      &lt;title&gt;&lt;/title&gt;
      &lt;script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"&gt;&lt;/script&gt;
      &lt;style type="text/css"&gt;
          fieldset
          {
              width:300px;
          }
          legend
          {
              color:Blue;
          }
      &lt;/style&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;form id="form1" runat="server"&gt;
      &lt;telerik:RadScriptManager ID="RadScriptManager1" runat="server"&gt;
      &lt;/telerik:RadScriptManager&gt;
      &lt;div&gt;
          &lt;fieldset&gt;
              &lt;legend&gt;keyup&lt;/legend&gt;
              &lt;asp:TextBox ID="TextBox1" runat="server" onkeyup="onkeyup_TextBox1();"&gt;&lt;/asp:TextBox&gt;
              &lt;br /&gt;
              &lt;asp:TextBox ID="TextBox2" runat="server"&gt;&lt;/asp:TextBox&gt;
          &lt;/fieldset&gt;
          &lt;br /&gt;
          &lt;br /&gt;
          &lt;fieldset&gt;
              &lt;legend&gt;keydown&lt;/legend&gt;
              &lt;asp:TextBox ID="TextBox3" runat="server" onkeydown="onkeydown_TextBox3();"&gt;&lt;/asp:TextBox&gt;
              &lt;br /&gt;
              &lt;asp:TextBox ID="TextBox4" runat="server"&gt;&lt;/asp:TextBox&gt;
          &lt;/fieldset&gt;
          &lt;br /&gt;
          &lt;br /&gt;
          &lt;fieldset&gt;
              &lt;legend&gt;keypress&lt;/legend&gt;
              &lt;asp:TextBox ID="TextBox5" runat="server" onkeypress="onkeypress_TextBox5();"&gt;&lt;/asp:TextBox&gt;
              &lt;br /&gt;
              &lt;asp:TextBox ID="TextBox6" runat="server"&gt;&lt;/asp:TextBox&gt;
          &lt;/fieldset&gt;
          &lt;br /&gt;
          &lt;br /&gt;
          &lt;fieldset&gt;
              &lt;legend&gt;Telerik - keyup&lt;/legend&gt;
              &lt;telerik:RadNumericTextBox ID="RadNumericTextBox1" runat="server" DataType="System.Int32"
                  onkeyup="onkeyup_RadNumericTextBox1();"&gt;
                  &lt;NumberFormat DecimalDigits="0" /&gt;
              &lt;/telerik:RadNumericTextBox&gt;
              &lt;br /&gt;
              &lt;telerik:RadNumericTextBox ID="RadNumericTextBox2" runat="server" 
                  DataType="System.Int32" Culture="fa-IR" Width="125px"&gt;
                  &lt;NumberFormat DecimalDigits="0" /&gt;
              &lt;/telerik:RadNumericTextBox&gt;
          &lt;/fieldset&gt;
      &lt;/div&gt;
          &lt;script type="text/javascript"&gt;
              function onkeyup_TextBox1() {
                  $('#TextBox2').val($('#TextBox1').val());
              }
              function onkeydown_TextBox3() {
                  $('#TextBox4').val($('#TextBox3').val());
              }
              function onkeypress_TextBox5() {
                  $('#TextBox6').val($('#TextBox5').val());
              }
              function onkeyup_RadNumericTextBox1() {
                  var RadNumericTextBox1 = $find("&lt;%= RadNumericTextBox1.ClientID %&gt;");
                  var RadNumericTextBox2 = $find("&lt;%= RadNumericTextBox2.ClientID %&gt;");
  
                  RadNumericTextBox2.set_value(RadNumericTextBox1.get_value());
              }
      &lt;/script&gt;
      &lt;/form&gt;
  &lt;/body&gt;
  &lt;/html&gt;  
  </code></pre>
  
  <p><strong>EDIT</strong><br>
  for my purpose onkeyup event on regular asp.net textbox controls is ok...
  but it does n't work sometimes in telerik input controls!(there is no problem about onkeyup syntax , just when typing in first text box the other one have 1 character less , why ?)</p>
  
  <p>which event should i use for telerik input controls for doing this job?</p>
  
  <p>thanks in advance</p>