# Set default value of single value parameter to select all **URL:** \ **Category:** Q&A\ **Tags:** qls-dev-resources, developer, quick-sight\ **Created:** [April 5, 2024, 3:18pm UTC](https://community.amazonquick.com/t/set-default-value-of-single-value-parameter-to-select-all/28280 "2024-04-05T15:18:53Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![adevaraj](https://avatars.discourse-cdn.com/v4/letter/a/96bed5/32.png) [@adevaraj](https://community.amazonquick.com/u/adevaraj)\ **Post date:** [April 5, 2024, 3:18pm UTC](https://community.amazonquick.com/t/set-default-value-of-single-value-parameter-to-select-all/28280/1 "2024-04-05T15:18:53Z")
I am using a string parameter in a calculated field, hence I need to set its default value. How can I set it to “Select All” by default? ---
**Author:** ![WLS-D](https://d2orw1595917va.cloudfront.net/user_avatar/community.amazonquick.com/wls-d/32/36109_2.png) [@WLS-D](https://community.amazonquick.com/u/WLS-D)\ **Post date:** [April 5, 2024, 8:36pm UTC](https://community.amazonquick.com/t/set-default-value-of-single-value-parameter-to-select-all/28280/2 "2024-04-05T20:36:29Z")
Hello @adevaraj , welcome to the Quicksight community! As long as you did not set a default value, the parameter should be set to show all values passed from the parameter. Depending on your use case you may need to attach it to a control for it to be dynamic for your end user. ---
**Author:** ![adevaraj](https://avatars.discourse-cdn.com/v4/letter/a/96bed5/32.png) [@adevaraj](https://community.amazonquick.com/u/adevaraj)\ **Post date:** [April 8, 2024, 11:05am UTC](https://community.amazonquick.com/t/set-default-value-of-single-value-parameter-to-select-all/28280/3 "2024-04-08T11:05:02Z")
I was able to resolve it by setting the default value to null and customized value to nu ll too.