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这是一个 SpreadsheetGear Grid 特定问题。我知道您可以向单元格添加评论，并且该单元格会自动在右上角获得红色三角形标记。但我需要在任何单元格角落添加一个小三角形（不同颜色）以表示一些特别的东西。有可能做到吗？

UPATE：这是我根据丹尼尔的建议在单元格的任何角落添加一个三角形的结果。

    public void AddTriangleShapeToCorner(IWorksheet worksheet, int row, int col, CellCorners cellCorner)
    {
        const double width = 5, height = 5;
        double xOffset = 0, yOffset = 0;

        IWorksheetWindowInfo windowInfo = worksheet.WindowInfo;

        if (cellCorner == CellCorners.TopRight || cellCorner == CellCorners.BottomRight)
        {
            col++;
            xOffset = width;
        }
        if (cellCorner == CellCorners.BottomLeft || cellCorner == CellCorners.BottomRight)
        {
            row++;
            yOffset = height;
        }
        double top = windowInfo.RowToPoints(row) - yOffset;
        double left = windowInfo.ColumnToPoints(col) - xOffset;

        IShape shape = worksheet.Shapes.AddShape(AutoShapeType.RightTriangle, left, top, width, height);
        shape.Line.Visible = false;         // line at top-left corner is not sharp, so turn it off.
        shape.Placement = Placement.Move;   // make the shape move with cell. NOTE: it doesn't work for top-right and bottom-right corners.
        if (cellCorner == CellCorners.TopLeft || cellCorner == CellCorners.TopRight)
            shape.VerticalFlip = true;
        if (cellCorner == CellCorners.TopRight || cellCorner == CellCorners.BottomRight)
            shape.HorizontalFlip = true;
    }
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1 回答 1

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您可以使用 IShapes AddShape方法。对于类型，您可以使用 AutoShapeType.RightTriangle。

这是一个例子：

private void AddTriangleShape(SpreadsheetGear.IWorksheet worksheet, int iRow, int iCol)
{
  SpreadsheetGear.IWorksheetWindowInfo windowInfo = worksheet.WindowInfo;

  // Calculate the left, top, width and height of the button by 
  // converting row and column coordinates to points.  Use fractional 
  // values to get coordinates in between row and column boundaries.
  double left = windowInfo.ColumnToPoints(iCol);
  double top = windowInfo.RowToPoints(iRow + 0.5);
  double right = windowInfo.ColumnToPoints(iCol + 0.1);
  double bottom = windowInfo.RowToPoints(iRow + 0.9);
  double width = right - left;
  double height = bottom - top;

  worksheet.Shapes.AddShape(SpreadsheetGear.Shapes.AutoShapeType.RightTriangle, left, top, width, height);
}
于 2012-12-07T06:35:35.717 回答