在将电子表格呈现为图像时设置默认字体

渲染电子表格为图像时设置默认字体

下面的示例代码创建一个工作簿,在第一个工作表的A4单元格中添加一些文本,并将其字体设置为无效或不存在的字体。然后,它会获取工作表的两个图像。第一张图片是通过将ImageOrPrintOptions.DefaultFont属性设置为Courier New获取的,第二张图片是通过将ImageOrPrintOptions.DefaultFont属性设置为Times New Roman获取的。

ImageOrPrintOptions.DefaultFont属性设置为Courier New后的输出图像。

todo:image_alt_text

ImageOrPrintOptions.DefaultFont属性设置为Times New Roman后的输出图像。

todo:image_alt_text

示例代码

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create workbook object.
Workbook wb = new Workbook();
// Set default font of the workbook to none
Style s = wb.DefaultStyle;
s.Font.Name = "";
wb.DefaultStyle = s;
// Access first worksheet.
Worksheet ws = wb.Worksheets[0];
// Access cell A4 and add some text inside it.
Cell cell = ws.Cells["A4"];
cell.PutValue("This text has some unknown or invalid font which does not exist.");
// Set the font of cell A4 which is unknown.
Style st = cell.GetStyle();
st.Font.Name = "UnknownNotExist";
st.Font.Size = 20;
st.IsTextWrapped = true;
cell.SetStyle(st);
// Set first column width and fourth column height
ws.Cells.SetColumnWidth(0, 80);
ws.Cells.SetRowHeight(3, 60);
// Create image or print options.
ImageOrPrintOptions opts = new ImageOrPrintOptions();
opts.OnePagePerSheet = true;
opts.ImageType = Drawing.ImageType.Png;
// Render worksheet image with Courier New as default font.
opts.DefaultFont = "Courier New";
SheetRender sr = new SheetRender(ws, opts);
sr.ToImage(0, "out_courier_new_out.png");
// Render worksheet image again with Times New Roman as default font.
opts.DefaultFont = "Times New Roman";
sr = new SheetRender(ws, opts);
sr.ToImage(0, "times_new_roman_out.png");