设置 Excel 和 ODS 文件的条件格式。

介绍

条件格式是一项高级 Microsoft Excel 功能，允许您将格式应用于单元格或单元格区域，并根据单元格的值或公式的值更改格式。例如，您可以让单元格仅在单元格的值大于 500 时显示为粗体。当单元格的值满足条件时，指定的格式将应用于单元格。如果单元格的值不满足格式条件，则使用单元格的默认格式。在 Microsoft Excel 中，选择格式， 然后条件格式打开条件格式对话框。

Aspose.Cells 支持在运行时对单元格应用条件格式。这篇文章解释了如何。它还解释了如何计算 Excel 用于色标条件格式的颜色。

应用条件格式

Aspose.Cells 通过几种方式支持条件格式：

• 使用设计器电子表格
• 使用复制方法。
• 在运行时创建条件格式。

使用设计器电子表格

开发人员可以在 Microsoft Excel 中创建包含条件格式的设计器电子表格，然后使用 Aspose.Cells 打开该电子表格。Aspose.Cells 加载并保存设计器电子表格，同时保留任何条件格式设置。

使用复制方法

Aspose.Cells 允许开发人员通过调用范围.复制()方法。

// 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);

// Creating a file stream containing the Excel file to be opened
FileStream fstream = new FileStream(dataDir + "Book1.xlsx", FileMode.Open);

// Opening the Excel file through the file stream
Workbook workbook = new Workbook(fstream);

// Accessing the first worksheet in the Excel file
Worksheet worksheet = workbook.Worksheets[0];

// Copying conditional format settings from cell "A1" to cell "B1"
//worksheet.CopyConditionalFormatting(0, 0, 0, 1);

int TotalRowCount = 0;

for (int i = 0; i < workbook.Worksheets.Count; i++)
{
    Worksheet sourceSheet = workbook.Worksheets[i];

    Range sourceRange = sourceSheet.Cells.MaxDisplayRange;

    Range destRange = worksheet.Cells.CreateRange(sourceRange.FirstRow + TotalRowCount, sourceRange.FirstColumn,
          sourceRange.RowCount, sourceRange.ColumnCount);

    destRange.Copy(sourceRange);

    TotalRowCount = sourceRange.RowCount + TotalRowCount;
}
            

// Saving the modified Excel file
workbook.Save(dataDir + "output.xls");

// Closing the file stream to free all resources
fstream.Close();

在运行时应用条件格式

Aspose.Cells 允许您在运行时添加和删除条件格式。下面的代码示例显示了如何设置条件格式：

1. 实例化工作簿。
2. 添加一个空的条件格式。
3. 设置格式应适用的范围。
4. 定义格式化条件。
5. 保存文件。

在这个示例之后是许多其他较小的示例，这些示例展示了如何应用字体设置、边框设置和图案。

Microsoft Excel 2007 添加了 Aspose.Cells 也支持的更高级的条件格式。此处的示例说明如何使用简单格式，Microsoft Excel 2007 示例说明如何应用更高级的条件格式。

// 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);

string filePath = dataDir + "Book1.xlsx";

// Instantiating a Workbook object
Workbook workbook = new Workbook();
Worksheet sheet = workbook.Worksheets[0];

// Adds an empty conditional formatting
int index = sheet.ConditionalFormattings.Add();
FormatConditionCollection fcs = sheet.ConditionalFormattings[index];

// Sets the conditional format range.
CellArea ca = new CellArea();
ca.StartRow = 0;
ca.EndRow = 0;
ca.StartColumn = 0;
ca.EndColumn = 0;
fcs.AddArea(ca);

ca = new CellArea();
ca.StartRow = 1;
ca.EndRow = 1;
ca.StartColumn = 1;
ca.EndColumn = 1;
fcs.AddArea(ca);

// Adds condition.
int conditionIndex = fcs.AddCondition(FormatConditionType.CellValue, OperatorType.Between, "=A2", "100");

// Adds condition.
int conditionIndex2 = fcs.AddCondition(FormatConditionType.CellValue, OperatorType.Between, "50", "100");

// Sets the background color.
FormatCondition fc = fcs[conditionIndex];
fc.Style.BackgroundColor = Color.Red;

// Saving the Excel file
workbook.Save(dataDir + "output.xls");

设置字体

// 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 directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
    System.IO.Directory.CreateDirectory(dataDir);

// Instantiating a Workbook object
Workbook workbook = new Workbook();

// Adding a new worksheet to the Excel object
int i = workbook.Worksheets.Add();

// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[i];

// Accessing the "A1" cell from the worksheet
Aspose.Cells.Cell cell = worksheet.Cells["A1"];

// Adding some value to the "A1" cell
cell.PutValue("Hello Aspose!");

// Obtaining the style of the cell
Style style = cell.GetStyle();
// Setting the font weight to bold
style.Font.IsBold = true;
// Applying the style to the cell
cell.SetStyle(style);

// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls", SaveFormat.Excel97To2003);

您只能更改字体样式、文本颜色、下划线样式和删除线样式。

设置边框

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
public static void Run()
{
    // The path to the documents directory.
    string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

    // Instantiating a Workbook object
    Workbook workbook = new Workbook();
    Worksheet sheet = workbook.Worksheets[0];

    // Adds an empty conditional formatting
    int index = sheet.ConditionalFormattings.Add();
    FormatConditionCollection fcs = sheet.ConditionalFormattings[index];

    // Sets the conditional format range.
    CellArea ca = new CellArea();
    ca.StartRow = 0;
    ca.EndRow = 5;
    ca.StartColumn = 0;
    ca.EndColumn = 3;
    fcs.AddArea(ca);
    // Adds condition.
    int conditionIndex = fcs.AddCondition(FormatConditionType.CellValue, OperatorType.Between, "50", "100");
    // Sets the background color.
    FormatCondition fc = fcs[conditionIndex];
    fc.Style.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Dashed;
    fc.Style.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Dashed;
    fc.Style.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Dashed;
    fc.Style.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Dashed;

    fc.Style.Borders[BorderType.LeftBorder].Color = Color.FromArgb(0, 255, 255);
    fc.Style.Borders[BorderType.RightBorder].Color = Color.FromArgb(0, 255, 255);
    fc.Style.Borders[BorderType.TopBorder].Color = Color.FromArgb(0, 255, 255);
    fc.Style.Borders[BorderType.BottomBorder].Color = Color.FromArgb(255, 255, 0);
    workbook.Save(dataDir + "output.xlsx");
}

您只能对轮廓边框使用细线样式。不允许使用对角线。

设置模式

// 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);

// Instantiating a Workbook object
Workbook workbook = new Workbook();
Worksheet sheet = workbook.Worksheets[0];

// Adds an empty conditional formatting
int index = sheet.ConditionalFormattings.Add();
FormatConditionCollection fcs = sheet.ConditionalFormattings[index];

// Sets the conditional format range.
CellArea ca = new CellArea();
ca.StartRow = 0;
ca.EndRow = 5;
ca.StartColumn = 0;
ca.EndColumn = 3;
fcs.AddArea(ca);

// Adds condition.
int conditionIndex = fcs.AddCondition(FormatConditionType.CellValue, OperatorType.Between, "50", "100");
FormatCondition fc = fcs[conditionIndex];
fc.Style.Pattern = BackgroundType.ReverseDiagonalStripe;
fc.Style.ForegroundColor = Color.FromArgb(255, 255, 0);
fc.Style.BackgroundColor = Color.FromArgb(0, 255, 255);

workbook.Save(dataDir + "output.xlsx");

推进主题

• 添加 2 色标和 3 色标条件格式
• 应用高级条件格式
• 在工作表中应用条件格式
• 使用条件格式将底纹应用于交替行和列
• 生成条件格式 DataBars 图像
• 获取条件格式中使用的图标集、数据条或色标对象