Angular 2 Reactive Forms RadioButton for CheckBox for a FormArray -


i using dynamic forms form fields being added formarray on button click this.

 this._formbuilder.group({             name: [propertyname, [validators.required]],             datatype: [datatype, validators.required],             dateformat: [dateformat],             isprimary: [false]         });

i want 1 isprimary true in array. how achieve either using radio buttons or checkboxes.

please help.


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