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Angular 7 - how to make initial input value visible for JSON?


By : Xueshu Shi
Date : October 17 2020, 06:10 AM
will be helpful for those in need I have problem with my Angular 7 project. I have , When defining your form group in your component just do this:
code :
this.myFormGroup = new FormGroup({
    aName: new FormControl('some text'),
});
get myvalue(): string { 
    return this.myFormGroup.get('aName').value;
}


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How to make sort arrow visible for initial data?


By : Katie wright
Date : March 29 2020, 07:55 AM
Hope this helps If you set the sortInfo to asc or desc the sort arrows should already show.
Tested and works for me when I specify this in my gridOptions
code :
 $scope.gridOptions = {
        data: 'myData',
        sortInfo: {fields:['name'], directions:['asc'] }
 };
self.showSortButtonUp = function() {
    return self.sortable ? self.sortDirection === DESC : self.sortable;
};
self.showSortButtonDown = function() {
    return self.sortable ? self.sortDirection === ASC : self.sortable;
};

angular's $parsers on input field is having difficulty on initial input


By : reza rizvi
Date : March 29 2020, 07:55 AM
Hope that helps This fixes your problem when the first character is other than a digit, while also making the minimum number of changes to your code:
code :
app.directive('inputRestrictor', [function () {
    return {
        restrict: 'A',
        require: 'ngModel',
        link: function (scope, element, attr, ngModelCtrl) {
            // changed here
            var pattern = /^(?:|(?:[0-9]+(?:\.[0-9]{0,4})?))$/g;
            var view_value;

            function fromUser(text) {
                var return_value;
                if (text.match(pattern) === null) {
                    return_value = view_value;
                    // changed here
                    ngModelCtrl.$setViewValue(view_value || '');
                    ngModelCtrl.$render();
                }
                else {
                    return_value = text;
                    view_value = return_value;
                }

                return return_value;
            }
            ngModelCtrl.$parsers.push(fromUser);
        }
    };
}]);

Angular 6: Input with initial value without two way data binding


By : Felipe Mata
Date : March 29 2020, 07:55 AM
around this issue I want to give my input a initial value. It should be without two way databinding so not [(ngModel)]="categories.name". I have tried this: , If you want one way data binding just use
code :
[ngModel]="categories.name"

Angular 6: Make directive visible to parent from ng-content using Angular Material


By : Ruchikani Wickramasi
Date : March 29 2020, 07:55 AM

Get Angular to use initial input data while sending form even if user entered nothing inside input box


By : user2673031
Date : March 29 2020, 07:55 AM
I hope this helps you . For this particular use case I would suggest you to use reactive forms.As you can use the formControl and add your default value as a part of the formControl.
code :
formItem = new FormControl('default Value');
onSubmit(){
data = this.formItem.value;
}
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