Represents multiple border types of a cell.
Conceptually, cell formatting is divided into following groups:
- Number - indicates how to format and render the numeric value of a cell. Associated property is NumberFormat.
- Alignment - formatting information pertaining to text alignment in cells. Associated properties are HorizontalAlignment, VerticalAlignment, Indent, Rotation, IsTextVertical, WrapText and ShrinkToFit.
- Font - defines the properties for the used font. Associated property is Font.
- Border - expresses a single set of cell border formats (left, right, top, bottom and diagonal). Associated property is Borders.
- Fill - specifies fill formatting (pattern or gradient). Associated property is FillPattern.
- Protection - contains protection properties associated with the cell. Associated properties are Locked and FormulaHidden.
Additional CellStyle properties not associated with any formatting group are:
- Name - name of the referenced Style.
- QuotePrefix - true to store numeric value of a cell as text; otherwise, false.
- IsDefault - true if Name Style is default (Normal) and there are no additional modifications of cell formatting; otherwise, false.
Cell formatting group (Number, Alignment, Font, Border, Fill or Protection) (and its associated properties) is resolved from Name Style, unless cell formatting group or its associated property is modified.
Cell formatting is available for one or more cells through Style property which is available on ExcelCell and CellRange types. Cell formatting specified on ExcelColumn and ExcelRow types through Style property is simply propagated to cell formatting of its Cells.
For performance reasons, cell formatting on CellRange is resolved based just on its top-left cell formatting, except borders which are resolved based on corner cells depending on border side.
Setting cell formatting property on CellRange is propagated to each cell in a range.
If modifying multiple formatting properties of a CellRange, without preserving unmodified formatting properties, preferable way is to create new instance of CellStyle, make modifications on it, and assign it to Style property of that range.
GemBox.Spreadsheet internally takes care not to allocate unnecessary cells when formatting a range of cells (for example, when formatting Cells) and to cache formatting information of equally formatted cells, at the appropriate time, to reduce memory footprint.
All borders except diagonal.
Inside horizontal borders.
Inside vertical borders.