Web Reference: defaults to single-selection mode, but can be configured to allow multiple selection by setting the multiple property. This will allow the user to select multiple values at once. Using Angular 9 and Material 9. In the "ngOnInit" lifecycle hook. Here I am grabbing the United Kingdom object from my countries array. Then set the formsbuilder object (the mat-select) with the default value. or use patchValue on your form... this.addressForm.patchValue({ country: countryDefault.name . Lastly...set the bound value property. Dec 12, 2025 · Key Takeaway: mat-select uses form control values (not ng-selected) to determine the default selected option. To set a default, you must bind the mat-select to a form control (reactive) or ngModel (template-driven) and set the initial value of that control.
YouTube Excerpt: Angular - mat -select by default first value show
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Angular Mat Select By Default Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $23M - $40M
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Last Updated: April 9, 2026
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