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The OnDisable client-side event handler is called when the input control is disabled.

The OnDisable event is supported by all RadInput controls.

Two parameters are passed to the event handler:

  • sender is the input control.

  • eventArgs is an instance of Sys.EventArgs.

The following example uses the OnDisable event to enable another control when the input control is disabled:

<telerik:RadMaskedTextBox RenderMode="Lightweight" ID="RadMaskedTextBox1" runat="server" ShowButton="True">
    <ClientEvents OnDisable="EnableOtherInput" OnButtonClick="ToggleEnabled" />
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="RadNumericTextBox1" runat="server" Enabled="False" ShowButton="True">
    <Clientevents ondisable="EnableOtherInput" onbuttonclick="ToggleEnabled" />
<script type="text/javascript">
    function EnableOtherInput(sender, eventArgs)
        if (sender.get_id() == "<%= RadMaskedTextBox1.ClientID %>")
            var other = $find("<%= RadNumericTextBox1.ClientID %>");
        else if (sender.get_id() == "<%= RadNumericTextBox1.ClientID %>")
            var other = $find("<%= RadMaskedTextBox1.ClientID %>");
    function ToggleEnabled(sender, eventArgs)
        if (sender.get_enabled())

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