更改 Excel 中 CellValue 中文本的字体颜色 - OpenXml
如何更改Excel中CellValue的文本颜色？我可以更改单元格的前景色，但它会更改单元格内所有文本的颜色，这是我不想要的。我想仅突出显示单元格内的特定文本，即 CellValue 文本。
我使用下面的代码突出显示单元格文本，如何为 CellValue 完成此操作？
foreach (DocumentFormat.OpenXml.Spreadsheet.Cell currentCell in allCells)
{
Fill fill = new Fill()
{
PatternFill = new PatternFill
{
PatternType = PatternValues.Solid,
ForegroundColor = new ForegroundColor() { Rgb = "FFFF00" }
}
};
styleSheet.Fills.AppendChild(fill);
//Adding the CellFormat which uses the Fill element
CellFormats cellFormats = styleSheet.CellFormats;
CellFormat cf = new CellFormat();
cf.FillId = styleSheet.Fills.Count;
cellFormats.AppendChild(cf);
currentCell.StyleIndex = styleSheet.CellFormats.Count;
}
我在 CellValue 中没有看到 Style 的任何属性
CellValue currentCellValue = currentCell.GetFirstChild<CellValue>();
if (currentCell.DataType == CellValues.SharedString) // cell has a cell value that is a string, thus, stored else where
{
data = doc.WorkbookPart.GetPartsOfType<SharedStringTablePart>().FirstOrDefault().SharedStringTable.ElementAt(int.Parse(currentCellValue.Text)).InnerText;
}
从 OpenXML 工具生成的代码 -
SharedStringTable sharedStringTable1 = new SharedStringTable(){ Count = (UInt32Value)1U, UniqueCount = (UInt32Value)1U };
SharedStringItem sharedStringItem1 = new SharedStringItem();
Run run1 = new Run();
RunProperties runProperties1 = new RunProperties();
FontSize fontSize3 = new FontSize(){ Val = 11D };
Color color3 = new Color(){ Rgb = "FFFF0000" };
RunFont runFont1 = new RunFont(){ Val = "Calibri" };
FontFamily fontFamily1 = new FontFamily(){ Val = 2 };
FontScheme fontScheme4 = new FontScheme(){ Val = FontSchemeValues.Minor };
runProperties1.Append(fontSize3);
runProperties1.Append(color3);
runProperties1.Append(runFont1);
runProperties1.Append(fontFamily1);
runProperties1.Append(fontScheme4);
Text text1 = new Text();
text1.Text = "Microsoft";
run1.Append(runProperties1);
run1.Append(text1);
Run run2 = new Run();
RunProperties runProperties2 = new RunProperties();
FontSize fontSize4 = new FontSize(){ Val = 11D };
Color color4 = new Color(){ Theme = (UInt32Value)1U };
RunFont runFont2 = new RunFont(){ Val = "Calibri" };
FontFamily fontFamily2 = new FontFamily(){ Val = 2 };
FontScheme fontScheme5 = new FontScheme(){ Val = FontSchemeValues.Minor };
runProperties2.Append(fontSize4);
runProperties2.Append(color4);
runProperties2.Append(runFont2);
runProperties2.Append(fontFamily2);
runProperties2.Append(fontScheme5);
Text text2 = new Text(){ Space = SpaceProcessingModeValues.Preserve };
text2.Text = " is great";
run2.Append(runProperties2);
run2.Append(text2);
sharedStringItem1.Append(run1);
sharedStringItem1.Append(run2);
sharedStringTable1.Append(sharedStringItem1);
sharedStringTablePart1.SharedStringTable = sharedStringTable1;
你必须经历这些SharedStringItem元素。
这样的 aSharedStringItem 可以包含Run元素。
您将样式应用到该Run元素上。
SharedStringItem重要的是，您的代码还应涵盖 a不包含任何子元素的情况Run。当单元格仅包含文本而没有任何格式化的子元素时，就会出现这种情况。
在这里，您必须创建一个新的 Run 才能应用样式。
下面的代码使用 Excel 文件将第一行单元格中的单词 RED 的颜色设置为红色，如下图所示。
单元A1格包含Run元素，单元格B1不包含元素。
最终结果看起来像
String pathToYourExcelFile = @"C:\Folder\ExcelFile.xlsx";
using (SpreadsheetDocument document = SpreadsheetDocument.Open(pathToYourExcelFile, true))
{
WorkbookPart workbook = document.WorkbookPart;
WorksheetPart firstWorksheet = document.WorkbookPart.WorksheetParts.FirstOrDefault();
SharedStringTablePart stringTable = workbook.GetPartsOfType<SharedStringTablePart>().FirstOrDefault();
IEnumerable<Row> rows = firstWorksheet.Worksheet.GetFirstChild<SheetData>().Elements<Row>();
Row firstRow = rows.FirstOrDefault();
foreach (Cell cell in firstRow.Elements<Cell>())
{
foreach (CellValue cellValue in cell.Elements<CellValue>())
{
IEnumerable<SharedStringItem> sharedStrings =
stringTable.SharedStringTable.Elements<SharedStringItem>()
.Where((o, i) => i == Convert.ToInt32(cellValue.InnerText));
foreach (SharedStringItem sharedString in sharedStrings)
{
IEnumerable<Run> runs = sharedString.Elements<Run>();
if (runs.Count() > 0)
{
foreach (Run run in runs)
{
if (run.InnerText == "RED")
{
RunProperties properties = run.RunProperties ?? new RunProperties();
Color color = properties.Elements<Color>().FirstOrDefault();
if (color != null)
{
properties.RemoveChild<Color>(color);
}
properties.Append(new Color { Rgb = "FFFF0000" }) ;
}
}
}
else
{
// No Runs, only text; create a Run.
Text text = new Text(sharedString.InnerText);
sharedString.RemoveAllChildren();
Run run = new Run();
run.Append(text);
run.RunProperties = new RunProperties();
run.RunProperties.Append(new Color { Rgb = "FFFF0000" }) ;
sharedString.Append(run);
}
}
}
}
document.Save();
（我将把上面代码中的清理和异常处理留给您......）
编辑
对于您的具体情况，如果单元格值为“Microsoft is beautiful”，您必须将此字符串拆分为单独的部分，并Run为每个部分创建一个。仅在具有文本值“Microsoft”的部分上应用自定义字体颜色。
下面的简约代码展示了这个概念。
（此代码可以进行一些改进，因为最好不要拆分单独的单词，但您明白了...）
// No Runs, only text.
const String MS = "Microsoft";
String innerText = sharedString.InnerText;
if (innerText.IndexOf(MS, StringComparison.OrdinalIgnoreCase) >= 0)
{
sharedString.RemoveAllChildren();
String[] parts = innerText.Split(' ');
for (Int32 i = 0; i < parts.Length; i++)
{
String part = parts[i];
Text text = new Text((i > 0 ? " " : String.Empty) + part);
text.Space = SpaceProcessingModeValues.Preserve;
Run run = new Run();
run.Append(text);
if (part.Equals(MS, StringComparison.OrdinalIgnoreCase))
{
run.RunProperties = new RunProperties();
run.RunProperties.Append(new Color { Rgb = "FFFF0000" }) ;
}
sharedString.Append(run);
}
下图显示了之前和之后。
编辑
回应您关于如何循环遍历 Excel 文档中所有单元格的评论；请参阅下面的代码。
String pathToYourExcelFile = @"C:\Folder\ExcelFile.xlsx";
using (SpreadsheetDocument document = SpreadsheetDocument.Open(pathToYourExcelFile, true))
{
WorkbookPart workbook = document.WorkbookPart;
// Loop over all worksheets.
IEnumerable<WorksheetPart> worksheets = document.WorkbookPart.WorksheetParts;
foreach (WorksheetPart worksheet in worksheets)
{
// Loop over all rows.
IEnumerable<Row> rows = worksheet.Worksheet.GetFirstChild<SheetData>().Elements<Row>();
foreach (Row row in rows)
{
// Loop over all cells.
foreach (Cell cell in row.Elements<Cell>())
{
// Loop over all cell values.
foreach (CellValue cellValue in cell.Elements<CellValue>())
{
// Apply content formatting as in code above ...
}
}
}
}
}