# Debug

This action shows a string in the trace window. It is only for the simulator.

Action available for the following operating systems:

![](https://3821468174-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LrTlA1suFa5N48x_83N%2F-MI-v5geenmn9JtMk8Mc%2F-MI-vZULDckn3Es5GrxW%2FWin32.PNG?alt=media\&token=24d77e73-3be5-44ce-be7a-1b48f50ef9b5)

### Parameters

* **Type** \<unquoted string>
  * &#x20;**String Expression** - Shows the string specified in the **Expression** parameter.
  * &#x20;**Numeric Expression** - Shows the number specified in the **Expression** parameter.
  * &#x20;**Conditional Expression** - Shows the condition value specified in the **Expression** parameter.
  * &#x20;**Global Variables** - Shows the content of the global variables.
  * &#x20;**Local Variables** - Shows the content of the local variables from the current form.
  * &#x20;**Temporary Variables** - Shows the content of the temporary variables from the current event.
* &#x20;**Expression** \<string> -  The expression to show when the **Type** parameter is **String Expression**, **Numeric Expression** or **Conditional Expression**.
* &#x20;**Display** \<unquoted string> -  When the **Type** parameter is set to show variables content, it specifies if it show show the content of all the variables or only of those with a value.

{% hint style="info" %}
This action will be ignored when you deploy your projects. It will only be used by the simulator when your are testing your projects with the Designer.
{% endhint %}