Hello,

Thank you for reaching out about the sorting behavior of the igx-combo component.

I have been looking into your question and I understand you'd like to disable the automatic sorting of groups based on the group key. You can achieve this by utilizing the groupSortingDirection property available in the IgxComboComponent.

Here’s how you can implement it:

<div class="sample-wrapper">
    <igx-combo
        #combo
        class="combo"
        [data]="cities"
        valueKey="id"
        displayKey="name"
        groupKey="country"
        [groupSortingDirection]="groupSortingDirection"
    >
    </igx-combo>
</div>

In your component's TypeScript file, ensure you define the groupSortingDirection variable and set it to SortingDirection.None, like so:

public groupSortingDirection = SortingDirection.None;

This property allows you to specify the sorting direction of groups in the combo box. By setting it to SortingDirection.None, you effectively disable the automatic sorting of groups based on the group key.

By implementing the above changes, the groups in your igx-combo component will no longer be automatically sorted.

The described scenario could be observed here:

In addition, I have prepared small sample illustrating this behavior which could be found here. Please test it on your side and let me know how it behaves.

If you require any further assistance on the matter, please let me know.

Regards,

Georgi Anastasov

Entry Level Software Developer

Infragistics