Mat Option Value Not Binding

Angular material select is created using mat select which is a form control for selecting a value from a set of options.

Mat option value not binding.

Option option here s my component. The issue is that the way ng model bindings work has changed in that angular 1 4 and later uses exact type matching for value comparisons which results in behavior changes. To add elements to select option we need to use mat option element and to bind value with mat option use value property of it. To use angular material select use mat select formcontrol for selecting a value from the set of options.

You can read more about selects in the material design spec. Angular material select provides selectionchange event that emits when the selected value has been changed by the user. Depending on a use case it is good to know that initializing some default options as selected might not work by simply binding to the ngmodel because default values are different object instances than those in the options array. In my case i ran into a problem with static list values binding to a non string value which caused the binding to effectively not work at all.

Following the steps here i m able to get one to work fine but i m having difficulties with two input fields and autocomplete panels. I m attempting to use two matinput fields that each bind with separate mat autocomplete panels. Angular material form control select mat select by didin j updated on feb 03 2020 the series of a comprehensive step by step angular material components tutorial about form controls select mat select complete with the working examples. To set and get a value for mat select use value ngmodel formcontrol and formcontrolname property.

Mat select does not show the current selected option on page load if a mat option has some async behaviour in my case the translate pipe. Angular material provides mat select form control for selecting a value from a set of options similar to the native select element. With angular material there is no selected property on mat option while there is a request to support this andrey kolybelnikov explains how this works.