# Mask Components -\> "oninput" is it not working?

**URL:** <https://forum.radzen.com/t/mask-components-oninput-is-it-not-working/9060>\
**Category:** Radzen.Blazor Components\
**Created:** [September 24, 2021, 10:55pm UTC](https://forum.radzen.com/t/mask-components-oninput-is-it-not-working/9060 "2021-09-24T22:55:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mac](https://forum.radzen.com/letter_avatar_proxy/v4/letter/m/cc9497/32.png) [@mac](https://forum.radzen.com/u/mac)\
**Post date:** [September 24, 2021, 10:55pm UTC](https://forum.radzen.com/t/mask-components-oninput-is-it-not-working/9060/1 "2021-09-24T22:55:48Z")

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Hi,

Is it possible to generate an event after a given number of characters in the case of a mask components?

oninput does not seem to generate the event..

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<div class="post-metadata">

**Author:** ![korchev](https://forum.radzen.com/user_avatar/forum.radzen.com/korchev/32/4_2.png) [@korchev](https://forum.radzen.com/u/korchev)\
**Post date:** [September 25, 2021, 6:33am UTC](https://forum.radzen.com/t/mask-components-oninput-is-it-not-working/9060/2 "2021-09-25T06:33:19Z")

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> [@mac](#):
>
> Is it possible to generate an event after a given number of characters in the case of a mask components?

No, this is not currently possible.

> [@mac](#):
>
> oninput does not seem to generate the event..

It is used internally by the RadzenMask component. Blazor does not support assigning both a client-side and a server side event handlers on the same element.