Sets/gets if the item group is disabled

const myDropDownGroup: IgxDropDownGroupComponent = this.dropdownGroup;
// get
...
const groupState: boolean = myDropDownGroup.disabled;
...
//set
...
myDropDownGroup,disabled = false;
...
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<igx-drop-down-item-group [label]="'My Items'" [disabled]="true">
    <igx-drop-down-item *ngFor="let item of items[index]" [value]="item.value">
        {{ item.text }}
    </igx-drop-down-item>
</igx-drop-down-item-group>
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NOTE: All items inside of a disabled drop down group will be treated as disabled

Sets/gets the label of the item group

const myDropDownGroup: IgxDropDownGroupComponent = this.dropdownGroup;
// get
...
const myLabel: string = myDropDownGroup.label;
...
// set
...
myDropDownGroup.label = 'My New Label';
...
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<igx-drop-down-item-group [label]="'My new Label'">
     ...
</igx-drop-down-item-group>
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