# Using filters with parameters in Amazon Quick
Using filters with parameters

Use this section to filter the data in an analysis or dashboard by a single-value parameter value. To use a multivalued parameter—one with a multiselect drop-down control—create a custom filter that is equal (or not equal) to the values. 

Before using a filter with a parameter, you should already know how to work with filters. 

1. Verify that your analysis has a parameter already created. Choose **Edit** from either the parameter or the control menu to find out what settings are in use.

1. Choose the **Filter** pane from the left of the screen. If there is already a filter for the field that you want to use, choose it to open its settings. Otherwise, create a filter for the field that you want to filter by parameter.

1. Choose **Use Parameters**.

1. Choose your parameters from the list or lists below **Use parameters**. For text (string) fields, first choose **Custom Filter**, and then enable **Use Parameters**.

   For date fields, choose the **Start date** and **End date** parameters, as shown in the following screenshot. 

   For fields with other data types, choose **Select a parameter** and then choose your parameter from the list. 
**Note**  
Parameters that can hold multiple values must use equal or not equal as the comparison type.

1. Choose **Apply** to save your changes.

Test your new filter by choosing the control near the top of the analysis. In this example, we use a basic parameter that has no defaults, and a dynamic control that is linked to the **Region** field in the sample dataset named **Sales Pipeline**. The control queries the data, returning all values. 

If you delete or recreate a parameter that you are using in a filter, you can update the filter with the new parameter. To do this, open the filter, choose the new parameter that you want to use, and then choose **Apply**.

If you rename a parameter, you don't need to update the filter or any other consumers.