Angular select default value

How do I set default value of select box in angularjs. Select default option value from typescript. Using Reactive Form To set select option selected in reactive form we can use setValue and patchValue of FormGroup.

The setValue sets the value in each and every form control of FormGroup. After this we will have our SELECT with ‘Canada’ selected as default That all is goo but what about having complex object as OPTION value , rather than a regular string. Looking at the documentation, I am trying to get the select to have a default value as oppose to an empty place holder.

When I tryed an option with the value ! JS will insert an empty option tag with no value or text and select that. JS uses native JavaScript comparison for comparing the objects. JS or anything, comparing objects (object literals) is “by reference”, so it doesn’t factor the similarity of the objects. With takes a function which has two arguments: optionand option2.

This will make the select box to have the assigned value as the preselected as default. All we use forms in our applications. Selects in Forms are great when you have multiple options.

This can happen, for example, if the items are produced from an RPC to the server, and that RPC is re-run. In the following example, we set a default option for our users to see. We could leave it blank but it would not help our user. It can even bind the options to objects in the array, not just string values.

Angular uses object identity to select option. But its handling of default values can be a bit puzzling. Created on Plnkr: Helping developers build the web. For validation of select element, we need to use validation attribute such as required. I am assuming you are using a list to map with select options.

Use ngModel two way binding to set default value like below. To get the selected value from the dropdown list 3. To set the default value of the dropdown list 4. Hi,I did not find any way to set default value in component select in angular. Is there an opportunity to do it?

What is the current behavior? We can use the ngRepeat on “option” elements instead of ngOptions to achieve a similar result. In some cases this could completely prevent users from submitting a form. Once the text node is appende Safari and IE ignore the previously set select value and instead mark the first option element as selected. The Id property is assigned to the value attribute and the Name property is set as inner HTML for the option element.

In order to set an option as selecte you will need to use the ng-selected directive and assign it a Boolean expression. When using formBuilder default value passed to formBuilder does not show as selected in md- select. If I select value in formBuilder its name and value should appear as selected option of md- select. Placeholder is displayed instead.

By default ng-options will set the selected value is indexed value. If you want to set the different value as default value then you have to specify manually with the help of ng-model directive. We have bind the select element with ng-model and named as selecteddegree. The option will be selected if the expression inside the ng-selected attribute returns true.

The ng-selected directive is necessary to be able to shift the value between true and false.