Hi Farzin,
Query 1 - AutoComplete Mode not working
We have reviewed your query and have analyzed the provided code snippet. We have updated our sample with the code snippet you have provided and we are not able to reproduce the issue from our end. To provide more effective assistance and thoroughly investigate the issue, please share us a modified sample that replicates the problem. This will enable us to better understand and address the issue you're facing. We have attached a sample for you reference and please let us know if you need any further assistance.
Query 2 - AutoComplete availability in MultiSelectionComboBox
We have reviewed your query, and currently, there is no direct support for AutoComplete in MultiSelectionComboBox. However, you can achieve similar functionality using our SfComboBox by creating a custom filter and setting the SelectionMode of SfComboBox to MultiSelection. A sample has been attached for your reference. If you require any additional assistance, please do not hesitate to reach out.
Regards,
Madhumithan Jayapathi
Attachment:
ComboBox_1dc6b9a6.zip