在ODS文件中使用背景

ODS文件中的背景

可以将背景添加到ODS文件中的工作表。背景可以是彩色背景或图形背景。在打开文件时背景不可见,但如果文件作为PDF打印,则在生成的PDF中可以看到背景。在打印预览对话框中也可以看到背景。

Aspose.Cells提供了读取后台信息并在ODS文件中添加背景的能力。

从ODS文件读取背景信息

Aspose.Cells提供了OdsPageBackground类来管理ODS文件中的背景。以下代码示例演示了使用OdsPageBackground类加载源ODS文件并读取背景信息。请参阅代码生成的控制台输出以供参考。

示例代码

// 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();
//Load source Excel file
Workbook workbook = new Workbook(sourceDir + "GraphicBackground.ods");
//Access first worksheet
Worksheet worksheet = workbook.Worksheets[0];
OdsPageBackground background = worksheet.PageSetup.ODSPageBackground;
Console.WriteLine("Background Type: " + background.Type.ToString());
Console.WriteLine("Backgorund Position: " + background.GraphicPositionType.ToString());
//Save background image
Bitmap image = new Bitmap(new MemoryStream(background.GraphicData));
image.Save(outputDir + "background.jpg");

控制台输出

Background Type: Graphic

Backgorund Position: CenterCenter

向ODS文件添加彩色背景

Aspose.Cells提供了OdsPageBackground类来管理ODS文件中的背景。以下代码示例演示了使用OdsPageBackground.Color属性向ODS文件添加颜色背景。请参阅代码生成的输出ODS文件以供参考。

示例代码

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
//Output directory
string outputDir = RunExamples.Get_OutputDirectory();
// Instantiating a Workbook object
Workbook workbook = new Workbook();
//Access first worksheet
Worksheet worksheet = workbook.Worksheets[0];
worksheet.Cells[0, 0].Value = 1;
worksheet.Cells[1, 0].Value = 2;
worksheet.Cells[2, 0].Value = 3;
worksheet.Cells[3, 0].Value = 4;
worksheet.Cells[4, 0].Value = 5;
worksheet.Cells[5, 0].Value = 6;
worksheet.Cells[0, 1].Value = 7;
worksheet.Cells[1, 1].Value = 8;
worksheet.Cells[2, 1].Value = 9;
worksheet.Cells[3, 1].Value = 10;
worksheet.Cells[4, 1].Value = 11;
worksheet.Cells[5, 1].Value = 12;
OdsPageBackground background = worksheet.PageSetup.ODSPageBackground;
background.Color = Color.Azure;
background.Type = OdsPageBackgroundType.Color;
workbook.Save(outputDir + "ColoredBackground.ods", SaveFormat.Ods);

向ODS文件添加图形背景

Aspose.Cells提供了OdsPageBackground类来管理ODS文件中的背景。以下代码示例演示了使用OdsPageBackground.GraphicData属性向ODS文件添加图形背景。请参阅代码生成的输出ODS文件以供参考。

示例代码

// 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();
// Instantiating a Workbook object
Workbook workbook = new Workbook();
//Access first worksheet
Worksheet worksheet = workbook.Worksheets[0];
worksheet.Cells[0, 0].Value = 1;
worksheet.Cells[1, 0].Value = 2;
worksheet.Cells[2, 0].Value = 3;
worksheet.Cells[3, 0].Value = 4;
worksheet.Cells[4, 0].Value = 5;
worksheet.Cells[5, 0].Value = 6;
worksheet.Cells[0, 1].Value = 7;
worksheet.Cells[1, 1].Value = 8;
worksheet.Cells[2, 1].Value = 9;
worksheet.Cells[3, 1].Value = 10;
worksheet.Cells[4, 1].Value = 11;
worksheet.Cells[5, 1].Value = 12;
OdsPageBackground background = worksheet.PageSetup.ODSPageBackground;
background.Type = OdsPageBackgroundType.Graphic;
background.GraphicData = File.ReadAllBytes(sourceDir + "background.jpg");
background.GraphicType = OdsPageBackgroundGraphicType.Area;
workbook.Save(outputDir + "GraphicBackground.ods", SaveFormat.Ods);