# Collection Filters

Publisher's collection filters dynamically manage collection contents, automatically updating as new [data sources](/products/publisher/data-sources.md) match your filter criteria. These filters are available for both files and tables, helping administrators precisely define collection contents.

## How Filters Work

Publisher automatically updates collection contents based on your filter settings, ensuring collections stay current with your data sources. When new data is connected to [Publisher](https://github.com/DNAstack/dnastack-product-docs/blob/main/docs/publisher/collections/broken-reference/README.md), it's automatically evaluated against existing collection filters.

### Example Scenario

Let's say you create a collection to gather all files containing "portal" in their names:

1. Initial State:
   * One file in Publisher contains "portal"
   * Your collection has the <mark style="color:orange;">`Name`</mark> filter condition set to <mark style="color:orange;">`Contains`</mark> and the value to <mark style="color:orange;">`portal`</mark>
   * This collection contains only one file since it's the only file that has "portal" in its name
2. After Adding New Data:
   * A new data source with a "portal" file is connected
   * Collection automatically includes this new file
   * Collection now contains both matching files

#### Collections automatically:

* Evaluate new data against filter criteria
* Include matching content from new data sources
* Update without manual intervention
* Maintain consistent organization of your data


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