if i want that a person can only register one time and use a text fild to enter a number to check it with.
how do i do?
im thinking that you probebly need to loop the datalist and check a column for this value.
if i want that a person can only register one time and use a text fild to enter a number to check it with.
how do i do?
im thinking that you probebly need to loop the datalist and check a column for this value.