生成条件格式数据条形图像

有时，您需要生成条件格式数据条的图像。您可以使用Aspose.Cells的DataBar.ToImage()方法生成这些图像。本文展示了如何使用Aspose.Cells生成DataBar图像。

以下示例代码生成了单元格 C1 的 DataBar 图像。首先，它访问了单元格的格式条件对象，然后从该对象访问DataBar对象，并使用其 ToImage() 方法生成单元格的图像。最后，将图像保存在磁盘上。

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
//Source directory
string sourceDir = RunExamples.Get_SourceDirectory();

//Output directory
string outputDir = RunExamples.Get_OutputDirectory();

// Create workbook object from source excel file
Workbook workbook = new Workbook(sourceDir + "sampleGenerateDatabarImage.xlsx");

// Access first worksheet
Worksheet worksheet = workbook.Worksheets[0];

// Access the cell which contains conditional formatting databar
Cell cell = worksheet.Cells["C1"];

// Create and get the conditional formatting of the worksheet
int idx = worksheet.ConditionalFormattings.Add();
FormatConditionCollection fcc = worksheet.ConditionalFormattings[idx];
fcc.AddCondition(FormatConditionType.DataBar);
fcc.AddArea(CellArea.CreateCellArea("C1", "C4"));

// Access the conditional formatting databar
DataBar dbar = fcc[0].DataBar;

// Create image or print options
ImageOrPrintOptions opts = new ImageOrPrintOptions();
opts.ImageType = Drawing.ImageType.Png;

// Get the image bytes of the databar
byte[] imgBytes = dbar.ToImage(cell, opts);

// Write image bytes on the disk
File.WriteAllBytes(outputDir + "outputGenerateDatabarImage.png", imgBytes);