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1
Vote

Enabling the "allowFiltering" option and rendering the "ng-template," then using the beforeOpen event to change the dataSource, initially displays the entire dataSource without allowing item selection, resulting in a console error. Upon reopening the popup, the newly set dataSource is correctly shown.


Sample: https://stackblitz.com/edit/angular-dhzclr-ajvob7?file=src%2fapp.component.html,package.json,src%2fapp.component.ts


Replication steps:

  1. Open the provided sample.
  2. Click to open the popup and observe the issue of displaying the entire dataSource items.
  3. Attempt to click any item and note the error.
  4. Close the popup, reopen it, and observe that the newly set dataSource is now displayed.

Expected Behavior: The list items should render correctly without causing new console errors.

Actual Behavior: The list items initially do not display properly and cause a console error.