OnKeyPress

This event is fired when a keyboard key is pressed.

Telerik.Web.UI.GridDataItemCancelEventArgs OnKeyPress Property

Fired by	RadGrid
Arguments	get_keyCode() - the code of the key pressed; get_isShiftPressed() - true or false , depending on whether the Shift key was held down when the event fired; get_isCtrlPressed() - true or false depending on whether the Ctrl key was held down when the event fired; get_isAltPressed() - true or false depending on whether the Alt key was held down when the event fired; get_domEvent() - the original browser event object.
Can be canceled	Yes, call eventArgs.set_cancel(true) to cancel.

Example:

<telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server">
    <ClientSettings>
        <ClientEvents OnKeyPress="KeyPress" />
    </ClientSettings>
</telerik:RadGrid>

function KeyPress(sender, eventArgs) {
    alert("Key code: " + eventArgs.get_keyCode());
    alert("Is Shift pressed: " + eventArgs.get_isShiftPressed());
    alert("Is Ctrl pressed: " + eventArgs.get_isCtrlPressed());
    alert("Is Alt pressed: " + eventArgs.get_isAltPressed());
}