> For the complete documentation index, see [llms.txt](https://docs.nedyx.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nedyx.com/version-1.52-preview/clearlines-functions/general-aspects/calculated-widget-properties.md).

# Calculated widget properties

Some widget properties can be defined by formula. Here, the most important property is the content of a widget, which can be either entered manually during the Edit mode, or can be calculated by a formula. 

<figure><img src="/files/VJnJ8WNw035dRufX8w1B" alt=""><figcaption><p>The content of the cell widget is calculated by the RAND function.</p></figcaption></figure>

Besides the content, there are several other properties which can be calculated during a session, like Visible, Style or Connection. This provides the Editor with enhanced capabilities to dynamically customize the user interface and functionality of an app.&#x20;

If a property of a widget is calculated, the following principles are followed:

* A new calculation of a property replaces the previous value(s) of the property completely.
* If the calculation formula of a property returns *empty*, the property value(s) are not changed.
* When a value of a widget on which the property directly or indirectly depends changes, the formula of the property is recalculated.
* Calculated properties have different dimensionality. There are properties like *Content* or Editable, which can be a multi-cell range, or a property *Visible* or *Style*, containing always only one cell.

In the following chapters, these properties are described in detail.&#x20;