> 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/invokeurlparammapping.md).

# URL Param

## Description:

### Allowed Parent Components:

1. Open URL

### Allowed Child Components:

1. Trigger Before Render

### Properties

### ➤ Param Name

Specify the name of the to be appended to the URL. i.e. headerId will be appended as <https://cloudio.io?lineId=1&headerId=12345>. Note: ? will be appended to the URL before appending the params if the URL doesn't already contains ?

Allowed Values: Free text field

### ➤ 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