Version: Unity 7.0 Alpha (7000.0)
LanguageEnglish
  • C#

SystemState.GetComponentLookup

Leave feedback
Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Declaration

public ComponentLookup<T> GetComponentLookup(bool isReadOnly);

Parameters

Parameter Description
isReadOnly Whether the data is only read, not written. Access data as read-only whenever possible.

Returns

ComponentLookup<T> All component data of type T.

Description

Manually gets a dictionary-like container containing all components of type T, keyed by Entity.

Remember to call ComponentLookup<T0>.Update.

Prefer using SystemAPI.GetComponentLookup as it will cache in OnCreate for you and call .Update(ref state) at the call-site.

Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.

Copyright ©2005-2026 Unity Technologies. All rights reserved. Built from job ID 77648756. Built on: 2026-10-16.
Tutorials Community Answers Knowledge Base Forums Asset Store Terms of use Legal Privacy Policy Cookies Documentation Terms of Use Do Not Sell or Share My Personal Information