Question

_ are set to control the properties of the data type of a field.

Answer 1

Data type is the answer...

Answer 2

___"Data Type"___ are set to control the properties of the data type of the field........... For eg. data types like numbers, memo, yes/no etc. are chosen from the drop down list and then the datasheet view accepts only the type of data acc. to the criteria chosen in the design view.