.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+

Borders.DiagonalBorderType Property

Gets or sets the type of the cell diagonal border.

Namespace: DevExpress.Spreadsheet

Assembly: DevExpress.Spreadsheet.v20.2.Core.dll


DiagonalBorderType DiagonalBorderType { get; set; }
Property DiagonalBorderType As DiagonalBorderType

Property Value

Type Description

A DiagonalBorderType enumerator member specifying a cell diagonal border type.


To specify the characteristics of cell diagonal borders, use the DiagonalBorderType, Borders.DiagonalBorderColor and Borders.DiagonalBorderLineStyle properties.

If you set a color and line style of a cell diagonal border and do not select the diagonal border type, the Borders.DiagonalBorderType property will be automatically set to DiagonalBorderType.UpAndDown. Use this diagonal border type if you want to specify both diagonal-up and diagonal-down borders for a cell. If it is required to set a cell diagonal border either from bottom left to top right or from top left to bottom right, set the Borders.DiagonalBorderType property to DiagonalBorderType.Up or DiagonalBorderType.Down, respectively. Note that if you specify different formats for diagonal-up and diagonal-down borders separately, only the last specified diagonal border will be applied.

Another way to set diagonal borders for a cell or range of cells is to call the Borders.SetDiagonalBorders method with the border color, line style and type passed as parameters.

To specify any other cell borders (e.g., top, bottom, left, right, inside and outside borders), use the corresponding properties and methods of the Borders object. Access this object via the cell's or cell range's Formatting.Borders property.

For examples on how to specify formatting for an individual cell and cell range, or modify a style, refer to the How to: Format a Cell or Range of Cells or How to: Create or Modify a Style document, respectively.


This example demonstrates how to specify different borders for individual cells and ranges of cells by modifying the Borders object.

Worksheet worksheet = workbook.Worksheets[0];

// Set each particular border for the cell.
Cell cellB2 = worksheet.Cells["B2"];
Borders cellB2Borders = cellB2.Borders;
cellB2Borders.LeftBorder.LineStyle = BorderLineStyle.MediumDashDot;
cellB2Borders.LeftBorder.Color = Color.Pink;
cellB2Borders.TopBorder.LineStyle = BorderLineStyle.MediumDashDotDot;
cellB2Borders.TopBorder.Color = Color.HotPink;
cellB2Borders.RightBorder.LineStyle = BorderLineStyle.MediumDashed;
cellB2Borders.RightBorder.Color = Color.DeepPink;
cellB2Borders.BottomBorder.LineStyle = BorderLineStyle.Medium;
cellB2Borders.BottomBorder.Color = Color.Red;
cellB2Borders.DiagonalBorderType = DiagonalBorderType.Up;
cellB2Borders.DiagonalBorderLineStyle = BorderLineStyle.Thick;
cellB2Borders.DiagonalBorderColor = Color.Red;

// Set diagonal borders for the cell.
Cell cellC4 = worksheet.Cells["C4"];
Borders cellC4Borders = cellC4.Borders;
cellC4Borders.SetDiagonalBorders(Color.Orange, BorderLineStyle.Double, DiagonalBorderType.UpAndDown);

// Set all outside borders for the cell in one step. 
Cell cellD6 = worksheet.Cells["D6"];
cellD6.Borders.SetOutsideBorders(Color.Gold, BorderLineStyle.Double);
// Set all borders for the range of cells in one step.
CellRange range1 = worksheet.Range["B8:F13"];
range1.Borders.SetAllBorders(Color.Green, BorderLineStyle.Double);

// Set all inside and outside borders separately for the range of cells.
CellRange range2 = worksheet.Range["C15:F18"];
range2.SetInsideBorders(Color.SkyBlue, BorderLineStyle.MediumDashed);
range2.Borders.SetOutsideBorders(Color.DeepSkyBlue, BorderLineStyle.Medium);

// Set all horizontal and vertical borders separately for the range of cells.
CellRange range3 = worksheet.Range["D21:F23"];
Formatting range3Formatting = range3.BeginUpdateFormatting();
Borders range3Borders = range3Formatting.Borders;
range3Borders.InsideHorizontalBorders.LineStyle = BorderLineStyle.MediumDashDot;
range3Borders.InsideHorizontalBorders.Color = Color.DarkBlue;
range3Borders.InsideVerticalBorders.LineStyle = BorderLineStyle.MediumDashDotDot;
range3Borders.InsideVerticalBorders.Color = Color.Blue;

// Set each particular border for the range of cell. 
CellRange range4 = worksheet.Range["E25:F26"];
Formatting range4Formatting = range4.BeginUpdateFormatting();
Borders range4Borders = range4Formatting.Borders;
range4Borders.SetOutsideBorders(Color.Black, BorderLineStyle.Thick);
range4Borders.LeftBorder.Color = Color.Violet;
range4Borders.TopBorder.Color = Color.Violet;
range4Borders.RightBorder.Color = Color.DarkViolet;
range4Borders.BottomBorder.Color = Color.DarkViolet;
range4Borders.DiagonalBorderType = DiagonalBorderType.UpAndDown;
range4Borders.DiagonalBorderLineStyle = BorderLineStyle.MediumDashed;
range4Borders.DiagonalBorderColor = Color.BlueViolet;
See Also