> For the complete documentation index, see [llms.txt](https://docs.cloudio.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloudio.io/ui-components/widgets/inputmapping.md).

# Input

## Description:

### Allowed Parent Components:

1. Invoke DataSource

### Allowed Child Components:

1. Trigger Before Render

### Properties

### ➤ Value Expression

Specify an expression that should be evaluated to a string or number depending on the target attribute

Allowed Values: Specify an expression that should be evaluated to a string or number depending on the target attribute

### ➤ Input Attribute

Choose an attribute from the list whose value will be passed to the server as data on invoke datasource.

Allowed Values: Choose an attribute from the list whose value will be passed to the server as data on invoke datasource.