c# - How can i get the correct changes in datagridview combobox column? -

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i have a

datagridview

in have a

datagridviewcomboboxcolumn

as 1 of column.

this column's 

columntype = datagridviewcomboboxcolumn.

in combo box have items admin,user,animal,human , birds. first item displayed when grid view loads admin (notice lowercase letter.).

everything working fine problem arises - whenever user changing name admin admin/admin/admin etc. , clicking anywhere else in gridview column again showing admin in column when same scenario done time user presses enter or tab button , value changed.

i not understanding why happened?

what difference between click , enter/tab combo box?

one more thing if user typing other word except "admin" , value changed on click.

i think problem arises when typing uppercase letter or mixture of upper , lower case letters.

same thing happened other items of combo box such animal/birds etc.


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