文檔金喜正規買球>>Aspose.PDF for .NET開發者使用教程>>PDF管理控件Aspose.PDF for .Net使用教程（四十一）：在帶標簽的PDF中使用表格
PDF管理控件Aspose.PDF for .Net使用教程（四十一）：在帶標簽的PDF中使用表格
Aspose.PDF for .NET是一種高PDF處理和解析API，用于在跨平臺應用程序中執行文檔管理和操作任務。API可以輕松用于生成、修改、轉換、渲染、保護和打印PDF文檔，而無需使用Adobe Acrobat。此外，API還提供PDF壓縮選項，表格創建和操作，圖形和圖像功能，廣泛的超鏈接功能，印章和水印任務，擴展的安全控制和自定義字體處理。
在接下來的系列教程中，將為開發者帶來Aspose.PDF for .NET的一系列使用教程，例如進行文檔間的轉換，如何標記PDF文件，如何使用表單和圖表等等。本文將介紹如何在帶標簽的PDF中使用表格。包括：
- 在帶標簽的PDF中創建表格
- 樣式表元素
- 樣式表行
- 樣式表單元
>>Aspose.PDF for .NET更新至最新版v20.7，歡迎下載體驗。
在帶標簽的PDF中創建表格
用于.NET的Aspose.PDF允許在帶標簽的PDF文檔中創建表格。為了處理表，API提供了TableElement類。為了創建表，可以使用ITaggedContent接口的CreateTableElement（）方法。此外，可以使用 TableElement類的CreateTHead（），CreateTBody（）和CreateTFoot（）方法分別創建Table Head，Table Body和Table Foot。若要創建表行，可以使用TableRowCollectionElement的 CreateTR（）方法 類。您還可以使用Document類的Validate（）方法檢查創建的PDF文檔是否符合PDF / UA。以下代碼段顯示了如何在“帶標簽的PDF”文檔中創建表格：
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();
// Create document
Document document = new Document();
ITaggedContent taggedContent = document.TaggedContent;
taggedContent.SetTitle("Example table");
taggedContent.SetLanguage("en-US");
// Get root structure element
StructureElement rootElement = taggedContent.RootElement;
TableElement tableElement = taggedContent.CreateTableElement();
rootElement.AppendChild(tableElement);
tableElement.Border = new BorderInfo(BorderSide.All, 1.2F, Color.DarkBlue);
TableTHeadElement tableTHeadElement = tableElement.CreateTHead();
TableTBodyElement tableTBodyElement = tableElement.CreateTBody();
TableTFootElement tableTFootElement = tableElement.CreateTFoot();
int rowCount = 50;
int colCount = 4;
int rowIndex;
int colIndex;
TableTRElement headTrElement = tableTHeadElement.CreateTR();
headTrElement.AlternativeText = "Head Row";
headTrElement.BackgroundColor = Color.LightGray;
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTHElement thElement = headTrElement.CreateTH();
thElement.SetText(String.Format("Head {0}", colIndex));
thElement.BackgroundColor = Color.GreenYellow;
thElement.Border = new BorderInfo(BorderSide.All, 4.0F, Color.Gray);
thElement.IsNoBorder = true;
thElement.Margin = new MarginInfo(16.0, 2.0, 8.0, 2.0);
thElement.Alignment = HorizontalAlignment.Right;
}
for (rowIndex = 0; rowIndex < rowCount; rowIndex++)
{
TableTRElement trElement = tableTBodyElement.CreateTR();
trElement.AlternativeText = String.Format("Row {0}", rowIndex);
for (colIndex = 0; colIndex < colCount; colIndex++)
{
int colSpan = 1;
int rowSpan = 1;
if (colIndex == 1 && rowIndex == 1)
{
colSpan = 2;
rowSpan = 2;
}
else if (colIndex == 2 && (rowIndex == 1 || rowIndex == 2))
{
continue;
}
else if (rowIndex == 2 && (colIndex == 1 || colIndex == 2))
{
continue;
}
TableTDElement tdElement = trElement.CreateTD();
tdElement.SetText(String.Format("Cell [{0}, {1}]", rowIndex, colIndex));
tdElement.BackgroundColor = Color.Yellow;
tdElement.Border = new BorderInfo(BorderSide.All, 4.0F, Color.Gray);
tdElement.IsNoBorder = false;
tdElement.Margin = new MarginInfo(8.0, 2.0, 8.0, 2.0);
tdElement.Alignment = HorizontalAlignment.Center;
TextState cellTextState = new TextState();
cellTextState.ForegroundColor = Color.DarkBlue;
cellTextState.FontSize = 7.5F;
cellTextState.FontStyle = FontStyles.Bold;
cellTextState.Font = FontRepository.FindFont("Arial");
tdElement.DefaultCellTextState = cellTextState;
tdElement.IsWordWrapped = true;
tdElement.VerticalAlignment = VerticalAlignment.Center;
tdElement.ColSpan = colSpan;
tdElement.RowSpan = rowSpan;
}
}
TableTRElement footTrElement = tableTFootElement.CreateTR();
footTrElement.AlternativeText = "Foot Row";
footTrElement.BackgroundColor = Color.LightSeaGreen;
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTDElement tdElement = footTrElement.CreateTD();
tdElement.SetText(String.Format("Foot {0}", colIndex));
tdElement.Alignment = HorizontalAlignment.Center;
tdElement.StructureTextState.FontSize = 7F;
tdElement.StructureTextState.FontStyle = FontStyles.Bold;
}
StructureAttributes tableAttributes = tableElement.Attributes.GetAttributes(AttributeOwnerStandard.Table);
StructureAttribute summaryAttribute = new StructureAttribute(AttributeKey.Summary);
summaryAttribute.SetStringValue("The summary text for table");
tableAttributes.SetAttribute(summaryAttribute);
// Save Tagged Pdf Document
document.Save(dataDir + "CreateTableElement.pdf");
// Checking PDF/UA compliance
document = new Document(dataDir + "CreateTableElement.pdf");
bool isPdfUaCompliance = document.Validate(dataDir + "table.xml", PdfFormat.PDF_UA_1);
Console.WriteLine(String.Format("PDF/UA compliance: {0}", isPdfUaCompliance));
樣式表元素
用于.NET的Aspose.PDF允許樣式化Tagged PDF文檔中的表格。為了給表設置樣式，可以使用ITaggedContent 接口的CreateTableElement（） 方法 創建表， 并使用TableElement 類的屬性設置樣式表。以下是可用于設置表格樣式的列表屬性：
- BackgroundColor
- Border
- Alignment
- CornerStyle
- Broken
- ColumnAdjustment
- ColumnWidths
- DefaultCellBorder
- DefaultCellPadding
- DefaultCellTextState
- DefaultColumnWidth
- IsBroken
- IsBordersIncluded
- Left
- Top
以下代碼段顯示了如何在“帶標簽的PDF”文檔中設置表格樣式：
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();
// Create document
Document document = new Document();
ITaggedContent taggedContent = document.TaggedContent;
taggedContent.SetTitle("Example table style");
taggedContent.SetLanguage("en-US");
// Get root structure element
StructureElement rootElement = taggedContent.RootElement;
// Create table structure element
TableElement tableElement = taggedContent.CreateTableElement();
rootElement.AppendChild(tableElement);
tableElement.BackgroundColor = Color.Beige;
tableElement.Border = new BorderInfo(BorderSide.All, 0.80F, Color.Gray);
tableElement.Alignment = HorizontalAlignment.Center;
tableElement.Broken = TableBroken.Vertical;
tableElement.ColumnAdjustment = ColumnAdjustment.AutoFitToWindow;
tableElement.ColumnWidths = "80 80 80 80 80";
tableElement.DefaultCellBorder = new BorderInfo(BorderSide.All, 0.50F, Color.DarkBlue);
tableElement.DefaultCellPadding = new MarginInfo(16.0, 2.0, 8.0, 2.0);
tableElement.DefaultCellTextState.ForegroundColor = Color.DarkCyan;
tableElement.DefaultCellTextState.FontSize = 8F;
tableElement.DefaultColumnWidth = "70";
tableElement.IsBroken = false;
tableElement.IsBordersIncluded = true;
tableElement.Left = 0F;
tableElement.Top = 40F;
tableElement.RepeatingColumnsCount = 2;
tableElement.RepeatingRowsCount = 3;
TextState rowStyle = new TextState();
rowStyle.BackgroundColor = Color.LightCoral;
tableElement.RepeatingRowsStyle = rowStyle;
TableTHeadElement tableTHeadElement = tableElement.CreateTHead();
TableTBodyElement tableTBodyElement = tableElement.CreateTBody();
TableTFootElement tableTFootElement = tableElement.CreateTFoot();
int rowCount = 10;
int colCount = 5;
int rowIndex;
int colIndex;
TableTRElement headTrElement = tableTHeadElement.CreateTR();
headTrElement.AlternativeText = "Head Row";
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTHElement thElement = headTrElement.CreateTH();
thElement.SetText(String.Format("Head {0}", colIndex));
}
for (rowIndex = 0; rowIndex < rowCount; rowIndex++)
{
TableTRElement trElement = tableTBodyElement.CreateTR();
trElement.AlternativeText = String.Format("Row {0}", rowIndex);
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTDElement tdElement = trElement.CreateTD();
tdElement.SetText(String.Format("Cell [{0}, {1}]", rowIndex, colIndex));
}
}
TableTRElement footTrElement = tableTFootElement.CreateTR();
footTrElement.AlternativeText = "Foot Row";
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTDElement tdElement = footTrElement.CreateTD();
tdElement.SetText(String.Format("Foot {0}", colIndex));
}
// Save Tagged Pdf Document
document.Save(dataDir + "StyleTableElement.pdf");
// Checking PDF/UA compliance
document = new Document(dataDir + "StyleTableElement.pdf");
bool isPdfUaCompliance = document.Validate(dataDir + "StyleTableElement.xml", PdfFormat.PDF_UA_1);
Console.WriteLine(String.Format("PDF/UA compliance: {0}", isPdfUaCompliance));
樣式表行
用于.NET的Aspose.PDF允許在標記的PDF文檔中設置表格行的樣式。為了設置表格行的樣式，可以使用TableTRElement 類的屬性。以下是可用于設置表格行樣式的列表屬性：
- BackgroundColor
- Border
- DefaultCellBorder
- MinRowHeight
- FixedRowHeight
- IsInNewPage
- IsRowBroken
- DefaultCellTextState
- DefaultCellPadding
- VerticalAlignment
以下代碼段顯示了如何在“標記的PDF”文檔中設置表格行的樣式：
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();
// Create document
Document document = new Document();
ITaggedContent taggedContent = document.TaggedContent;
taggedContent.SetTitle("Example table row style");
taggedContent.SetLanguage("en-US");
// Get root structure element
StructureElement rootElement = taggedContent.RootElement;
// Create table structure element
TableElement tableElement = taggedContent.CreateTableElement();
rootElement.AppendChild(tableElement);
TableTHeadElement tableTHeadElement = tableElement.CreateTHead();
TableTBodyElement tableTBodyElement = tableElement.CreateTBody();
TableTFootElement tableTFootElement = tableElement.CreateTFoot();
int rowCount = 7;
int colCount = 3;
int rowIndex;
int colIndex;
TableTRElement headTrElement = tableTHeadElement.CreateTR();
headTrElement.AlternativeText = "Head Row";
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTHElement thElement = headTrElement.CreateTH();
thElement.SetText(String.Format("Head {0}", colIndex));
}
for (rowIndex = 0; rowIndex < rowCount; rowIndex++)
{
TableTRElement trElement = tableTBodyElement.CreateTR();
trElement.AlternativeText = String.Format("Row {0}", rowIndex);
trElement.BackgroundColor = Color.LightGoldenrodYellow;
trElement.Border = new BorderInfo(BorderSide.All, 0.75F, Color.DarkGray);
trElement.DefaultCellBorder = new BorderInfo(BorderSide.All, 0.50F, Color.Blue);
trElement.MinRowHeight = 100.0;
trElement.FixedRowHeight = 120.0;
trElement.IsInNewPage = (rowIndex % 3 == 1);
trElement.IsRowBroken = true;
TextState cellTextState = new TextState();
cellTextState.ForegroundColor = Color.Red;
trElement.DefaultCellTextState = cellTextState;
trElement.DefaultCellPadding = new MarginInfo(16.0, 2.0, 8.0, 2.0);
trElement.VerticalAlignment = VerticalAlignment.Bottom;
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTDElement tdElement = trElement.CreateTD();
tdElement.SetText(String.Format("Cell [{0}, {1}]", rowIndex, colIndex));
}
}
TableTRElement footTrElement = tableTFootElement.CreateTR();
footTrElement.AlternativeText = "Foot Row";
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTDElement tdElement = footTrElement.CreateTD();
tdElement.SetText(String.Format("Foot {0}", colIndex));
}
// Save Tagged Pdf Document
document.Save(dataDir + "StyleTableRow.pdf");
// Checking PDF/UA compliance
document = new Document(dataDir + "StyleTableRow.pdf");
bool isPdfUaCompliance = document.Validate(dataDir + "StyleTableRow.xml", PdfFormat.PDF_UA_1);
Console.WriteLine(String.Format("PDF/UA compliance: {0}", isPdfUaCompliance));
樣式表單元
用于.NET的Aspose.PDF允許樣式化Tagged PDF文檔中的表格單元格。為了設置表格單元格的樣式，可以使用TableCellElement類的屬性。以下是可用于設置表格單元格樣式的列表屬性：
- BackgroundColor
- Border
- IsNoBorder
- Margin
- Alignment
- DefaultCellTextState
- IsWordWrapped
- VerticalAlignment
- ColSpan
- RowSpan
以下代碼段顯示了如何在“標記的PDF”文檔中設置表格單元的樣式：
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();
// Create document
Document document = new Document();
ITaggedContent taggedContent = document.TaggedContent;
taggedContent.SetTitle("Example table cell style");
taggedContent.SetLanguage("en-US");
// Get root structure element
StructureElement rootElement = taggedContent.RootElement;
// Create table structure element
TableElement tableElement = taggedContent.CreateTableElement();
rootElement.AppendChild(tableElement);
TableTHeadElement tableTHeadElement = tableElement.CreateTHead();
TableTBodyElement tableTBodyElement = tableElement.CreateTBody();
TableTFootElement tableTFootElement = tableElement.CreateTFoot();
int rowCount = 4;
int colCount = 4;
int rowIndex;
int colIndex;
TableTRElement headTrElement = tableTHeadElement.CreateTR();
headTrElement.AlternativeText = "Head Row";
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTHElement thElement = headTrElement.CreateTH();
thElement.SetText(String.Format("Head {0}", colIndex));
thElement.BackgroundColor = Color.GreenYellow;
thElement.Border = new BorderInfo(BorderSide.All, 4.0F, Color.Gray);
thElement.IsNoBorder = true;
thElement.Margin = new MarginInfo(16.0, 2.0, 8.0, 2.0);
thElement.Alignment = HorizontalAlignment.Right;
}
for (rowIndex = 0; rowIndex < rowCount; rowIndex++)
{
TableTRElement trElement = tableTBodyElement.CreateTR();
trElement.AlternativeText = String.Format("Row {0}", rowIndex);
for (colIndex = 0; colIndex < colCount; colIndex++)
{
int colSpan = 1;
int rowSpan = 1;
if (colIndex == 1 && rowIndex == 1)
{
colSpan = 2;
rowSpan = 2;
}
else if (colIndex == 2 && (rowIndex == 1 || rowIndex == 2))
{
continue;
}
else if (rowIndex == 2 && (colIndex == 1 || colIndex == 2))
{
continue;
}
TableTDElement tdElement = trElement.CreateTD();
tdElement.SetText(String.Format("Cell [{0}, {1}]", rowIndex, colIndex));
tdElement.BackgroundColor = Color.Yellow;
tdElement.Border = new BorderInfo(BorderSide.All, 4.0F, Color.Gray);
tdElement.IsNoBorder = false;
tdElement.Margin = new MarginInfo(8.0, 2.0, 8.0, 2.0);
tdElement.Alignment = HorizontalAlignment.Center;
TextState cellTextState = new TextState();
cellTextState.ForegroundColor = Color.DarkBlue;
cellTextState.FontSize = 7.5F;
cellTextState.FontStyle = FontStyles.Bold;
cellTextState.Font = FontRepository.FindFont("Arial");
tdElement.DefaultCellTextState = cellTextState;
tdElement.IsWordWrapped = true;
tdElement.VerticalAlignment = VerticalAlignment.Center;
tdElement.ColSpan = colSpan;
tdElement.RowSpan = rowSpan;
}
}
TableTRElement footTrElement = tableTFootElement.CreateTR();
footTrElement.AlternativeText = "Foot Row";
for (colIndex = 0; colIndex < colCount; colIndex++)
{
TableTDElement tdElement = footTrElement.CreateTD();
tdElement.SetText(String.Format("Foot {0}", colIndex));
}
// Save Tagged Pdf Document
document.Save(dataDir + "StyleTableCell.pdf");
// Checking PDF/UA compliance
document = new Document(dataDir + "StyleTableCell.pdf");
bool isPdfUaCompliance = document.Validate(dataDir + "StyleTableCell.xml", PdfFormat.PDF_UA_1);
Console.WriteLine(String.Format("PDF/UA compliance: {0}", isPdfUaCompliance));
還想要更多嗎？您可以點擊閱讀【2020 · Aspose最新資源整合】，查找需要的教程資源。如果您有任何疑問或需求，請隨時加入Aspose技術交流群（642018183），我們很高興為您提供查詢和咨詢。
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