If you set the

RangesToExpand

attribute to ALL, Address Verification expands the house number ranges whenever individual house numbers are available. If you set

RangesToExpand

to ONLY_WITH_VALID_ITEMS, Address Verification expands the ranges only if the reference data contains the complete list of house numbers within the specified range. You can turn off the range expansion by setting the

RangesToExpand

attribute to NONE. The default value is NONE. When the complete list of house numbers is not available in the reference address database, the ONLY_WITH_VALID_ITEMS setting works the same way as NONE.

You can use the

RangesToExpand

attribute in conjunction with the

FlexibleRangeExpansion

attribute to achieve the optimum results. If you set

FlexibleRangeExpansion

to ON, Address Verification expands only the initial items in a list. Address Verification internal logic decides the number of results to expand and how many to keep as ranges without exceeding the

MaxResultCount

. When you set

FlexibleRangeExpansion

to on, the suggestion list might contain both expanded and unexpanded ranges for house numbers and buildings. The number of results and the nature of the suggestion list depend on the values you specify for

MaxResultCount

,

RangesToExpand

, and

FlexibleRangeExpansion

.