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Bug - Dropdown panel won't close after extending mat-select #16312

codler opened this issue Jun 18, 2019 · 2 comments


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commented Jun 18, 2019


I want to extend mat-select like this





Steps to reproduce:

  1. Click on the dropdown to open the panel.
  2. Click on a value in the dropdown panel.

Expected Behavior

The dropdown panel should close after choosing a value

Actual Behavior

The dropdown panel is still open and nothing happens.


  • Angular: 8.0.1, same bug in 7
  • CDK/Material: 8.0.1/8.0.1, same bug in 7
  • Browser(s): Chrome/Firefox
  • Operating System (e.g. Windows, macOS, Ubuntu): Windows

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commented Jun 18, 2019

Extending the components isn't something we actively support (though we don't do anything to prevent people from doing it).

(except for components where we explicitly document extension, like CdkStepper)

@jelbourn jelbourn closed this Jun 18, 2019


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commented Jun 19, 2019

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