# CheckBox's not working in the Data Visualization demos

**URL:** <https://forum.radzen.com/t/checkboxs-not-working-in-the-data-visualization-demos/9589>\
**Category:** Site Feedback\
**Created:** [December 7, 2021, 11:31am UTC](https://forum.radzen.com/t/checkboxs-not-working-in-the-data-visualization-demos/9589 "2021-12-07T11:31:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kim](https://forum.radzen.com/user_avatar/forum.radzen.com/kim/32/9988_2.png) [@kim](https://forum.radzen.com/u/kim)\
**Post date:** [December 7, 2021, 11:31am UTC](https://forum.radzen.com/t/checkboxs-not-working-in-the-data-visualization-demos/9589/1 "2021-12-07T11:31:16Z")

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Hello [@Team](https://forum.radzen.com/groups/team).

[Data Visualization demos.](https://blazor.radzen.com/area-chart)

From a quick look, it's probably because they're missing the TValue property.

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**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:** [December 7, 2021, 11:38am UTC](https://forum.radzen.com/t/checkboxs-not-working-in-the-data-visualization-demos/9589/2 "2021-12-07T11:38:40Z")

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It's because of the Label. It has to be outside of it (clicking the label works as expected).