Hi Sonu,
We do not provide support for setting different
'SuggestionModes' in SfComboBox. This control is similar to Microsoft’s
ComboBox, additionally we have provided Edit Support with AutoComplete option,
this will append the filtered items but it does not display the filtered items
list and hence the ‘Contains’ mode will not work as expected.
We further suggest you to try using SfTextBoxExt for different
filter modes.
Please let us know if you have any queries.
Regards,
Vignesh V