TTextStrings.Delete procedure

Declaration

procedure Delete(Index: Integer); override

Arguments

Description

Delete is an overridden method used to delete the line of text at the specified position. BuildArrays is called to populate the internal array of TTextLineRange instances when the internal validity flag is not set.

Index contains the ordinal position in Strings for the line of text removed in the method. Index must be in the range 0..Count-1 or an EStringListError exception is raised.

Line range information is used to adjust both Text and the internal array of TTextLineRange instance. The line, including end-of-line characters, is removed from Text. The line counter is decremented, and the array of line ranges is updated. Line ranges after Index are updated to move their start and end positions downward by the length of the removed line. The memory at the end of the line ranges is zero-filled to prevent corruption.

Errors

Raises an EStringListError exception when Index is not a valid position in the list of string values.

See also

• BuildArrays
• Text
• TTextLineRange
• EStringListError
• TStrings.Count
• TStrings.Delete
• TStrings.Strings