Hi Kenan,
Greetings from Syncfusion support.
We would like to inform you that we did not provide any special keyboard action for the MultiSelect component when pressing the space key. If you are pressing the space key, then the space character will be entered in the input based on its default behaviour.
So, please share the details that which key action do you want to disable in the MultiSeelct component that will help us to check and proceed further at our end.
Regards,
Berly B.C
