Catch Insert, DeleteKey

[Holger]

Hi
I would like to catch in the OnKeyPress Event the Insert and Deletekey. Is that possible? I know some browser does not support this.

Furthermore the "get_IsCtrlPressed" Property does not work. I get always the message that this method is not supported.
My Client function:
function radGridDumOnKeyPress(sender, eventArgs)
{
  alert("Is Ctrl pressed: " + eventArgs.get_IsCtrlPressed());
}
I am using IE7.

Best regards
Holger

[Yavor]

Hi,

In order to make sure that the property is properly called, you will need to use slightly different syntax:

.Js

  function radGridDumOnKeyPress(sender, eventArgs)
        {
        alert("Is Ctrl pressed: " + eventArgs.get_isCtrlPressed());
        }

the isCtrlPressed() function starts with lowercase letter.
Also, unfortunately, you cannot detect the insert/delete key presses. Explorer doesn't fire the keypress event for delete, end, escape, function keys, home, insert, pageUp/Down and tab.
I hope this information helps.

Best wishes,
Yavor
the Telerik team

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[Holger]

Thanks for your help. The "Ctrl" issue is solved.
Is it possible to extend your grid and write an implementation to catch the onkeyup event on client side? This event provide any keycode.

Best regards
Holger

[Yavor]

Hello,

Unfortunately, this is a browser behavior. However, you can take an approach similar to the one shown in the code sample below:

.aspx

<script type="text/javascript">
function OnKeyDown(e)
{
    var isIE = /MSIE/.test(navigator.userAgent);
    var keyCode = isIE ? e.keyCode : e.which;

    if(keyCode == 8 || keyCode == 46)
    {
         RadControlsNamespace.DomEvent.PreventDefault(e);

    }
}
</script>
<rad:RadNumericTextBox onkeydown="OnKeyDown(event)" ID="RadNumericTextBox1" runat="server">
</rad:RadNumericTextBox>

This can be traced in the keydown window handler, for example.
I hope this information helps.

Greetings,
Yavor
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center