# Display Conditions

**Display Conditions** can be used to change the runtime status of [HMI Components ](/hmi-designer/hmi-components.md)while the robot program is running. 

Changing runtime status of HMI elements can be usefull to:

* **Show** or **Hide** HMI components
* **Enable** or **Disable** HMI components

<figure><img src="/files/wr9fXkBvy0fsGMIzlAcR" alt=""><figcaption><p>Display Conditions can be used to change appearance of UI components.</p></figcaption></figure>

Display Conditions can be expressed as simple **boolean variables** or as more complex **conditional statements**. You can setup Display Conditions for each HMI component inside its properties panel.

<figure><img src="/files/a7APNtJV4OglXlYBnrVe" alt=""><figcaption><p>Display Conditions can be configured inside the HMI Properties panel of each UI components.</p></figcaption></figure>

{% hint style="info" %}
Display Conditions can be set as:

* boolan variables
* functions returning a boolean value
* conditional statements equivalent to a boolean value&#x20;
  {% endhint %}

{% embed url="<https://www.youtube.com/watch?v=3QRPgzhc-zA>" %}

Runtime status of HMI components can be changed also programmatically using [HMI Commands.](/hmi-designer/hmi-commands.md)

You can see Display Conditions in action inside the [Machine Tending Example](/hmi-designer/working-examples/universal-robots/machine-tending-example.md).


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