Custom Functions: Value Lists & Script Parameters
Remove_Value
Removes a value in the specified position, along with the associated delimiting return character, from a value list, effectively shortening the list by 1 value.
To replace or clear an existing value, use the Update_Value function.
Format Remove_Value( Value_List , Index ) |
Parameters Value_List - The existing value list. Index - The position of the value to be removed from the existing value list. |
Data Type Returned Text |
Examples RemoveValue( “ab¶cd¶ef¶gh¶ij¶” , 4 ) returns “ab¶cd¶ef¶ij¶” |
Description if the Index specified is zero or is greater than the number of values in the existing value list, the Value_List if returned unaltered. If the Index specified is less than the number of values in the existing Value_List, the value in the specified position in the existing value list is removed, along with the delimiting return character, effectively shortening the list by 1 value. |
FileMaker Versions Supported 7, 8, 8.5, 9, 10, 11, 12, 13, 14, 15, 16 |
Code /* This function removes a value in the specified position and the associated delimiting return character from a value list, effectively shortening the list by 1 value. */ Let ( [ /* count the items currently in the value list */ Value Count = ValueCount( Value_List ) ; /* remove any trailing return at the end of the value list, so we know its safe to add one later (eliminates dup returns) */ Value_List = Clean_Trailing( Value_List ) ] ; Case ( Index < 1 ; Value_List & "¶" ; Index > Value Count ; Value_List & "¶" ; If( Index > 1 ; Clean_Trailing( LeftValues( Value_List ; Index - 1 ) ) & "¶" ; "" ) & If( Index < Value Count ; Clean_Trailing( RightValues( Value_List ; Value Count - Index ) ) & "¶" ; "" ) ) ) |