Aspose.Words For .NET是一種高級(jí)Word文檔處理API，用于執(zhí)行各種文檔管理和操作任務(wù)。API支持生成，修改，轉(zhuǎn)換，呈現(xiàn)和打印文檔，而無(wú)需在跨平臺(tái)應(yīng)用程序中直接使用Microsoft Word。此外，API支持所有流行的Word處理文件格式，并允許將Word文檔導(dǎo)出或轉(zhuǎn)換為固定布局文件格式和最常用的圖像/多媒體格式。

>>Aspose.Words for .NET已經(jīng)更新至v20.5，提供顯示/隱藏語(yǔ)法和拼寫錯(cuò)誤的功能，引入了可在文檔內(nèi)部使用水印的新幫助程序類，添加了為OOXML文檔設(shè)置壓縮級(jí)別的功能，點(diǎn)擊下載體驗(yàn)

插入段落

DocumentBuilder.Writeln 也可以在文檔中插入文本字符串，但除此之外，它還會(huì)添加一個(gè)段落分隔符。該DocumentBuilder.Font 屬性還指定當(dāng)前字體格式，而該 屬性確定當(dāng)前段落格式 DocumentBuilder.ParagraphFormat 。 下例顯示了如何將段落插入文檔。

// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_WorkingWithDocument();
// Initialize document.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// Specify font formatting
Font font = builder.Font;
font.Size = 16;
font.Bold = true;
font.Color = System.Drawing.Color.Blue;
font.Name = "Arial";
font.Underline = Underline.Dash;

// Specify paragraph formatting
ParagraphFormat paragraphFormat = builder.ParagraphFormat;
paragraphFormat.FirstLineIndent = 8;
paragraphFormat.Alignment = ParagraphAlignment.Justify;
paragraphFormat.KeepTogether = true;

builder.Writeln("A whole paragraph.");
dataDir = dataDir + "DocumentBuilderInsertParagraph_out.doc";
doc.Save(dataDir);

計(jì)算段落的行數(shù)

如果要計(jì)算任何Word文檔的段落中的行數(shù)，則可以使用以下代碼示例。

  // The path to the documents directory.
            string dataDir = RunExamples.GetDataDir_WorkingWithDocument();

            string fileName = "Properties.doc";
            Document document = new Document(dataDir + fileName);

            var collector = new LayoutCollector(document);
            var it = new LayoutEnumerator(document);

            foreach (Paragraph paragraph in document.GetChildNodes(NodeType.Paragraph, true))
            {
                var paraBreak = collector.GetEntity(paragraph);

                object stop = null;
                var prevItem = paragraph.PreviousSibling;
                if (prevItem != null)
                {
                    var prevBreak = collector.GetEntity(prevItem);
                    if (prevItem is Paragraph)
                    {
                        it.Current = collector.GetEntity(prevItem); // para break
                        it.MoveParent();    // last line
                        stop = it.Current;
                    }
                    else if (prevItem is Table)
                    {
                        var table = (Table)prevItem;
                        it.Current = collector.GetEntity(table.LastRow.LastCell.LastParagraph); // cell break
                        it.MoveParent();    // cell
                        it.MoveParent();    // row
                        stop = it.Current;
                    }
                    else
                    {
                        throw new Exception();
                    }
                }

                it.Current = paraBreak;
                it.MoveParent();

                // We move from line to line in a paragraph.
                // When paragraph spans multiple pages the we will follow across them.
                var count = 1;
                while (it.Current != stop)
                {
                    if (!it.MovePreviousLogical())
                        break;
                    count++;
                }

                const int MAX_CHARS = 16;
                var paraText = paragraph.GetText();
                if (paraText.Length > MAX_CHARS)
                    paraText = $"{paraText.Substring(0, MAX_CHARS)}...";

                Console.WriteLine($"Paragraph '{paraText}' has {count} line(-s).");
            }

段落格式

當(dāng)前段落格式由DocumentBuilder.ParagraphFormat屬性返回的ParagraphFormat對(duì)象表示。該對(duì)象封裝了Microsoft Word中可用的各種段落格式設(shè)置屬性。您可以通過(guò)調(diào)用ParagraphFormat.ClearFormatting輕松將段落格式重置為默認(rèn)樣式，即默認(rèn)樣式為普通樣式，左對(duì)齊，無(wú)縮進(jìn)，無(wú)間距，無(wú)邊框和無(wú)陰影 。下例顯示了如何設(shè)置段落格式。

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// Set paragraph formatting properties
ParagraphFormat paragraphFormat = builder.ParagraphFormat;
paragraphFormat.Alignment = ParagraphAlignment.Center;
paragraphFormat.LeftIndent = 50;
paragraphFormat.RightIndent = 50;
paragraphFormat.SpaceAfter = 25;

// Output text
builder.Writeln("I'm a very nice formatted paragraph. I'm intended to demonstrate how the left and right indents affect word wrapping.");
builder.Writeln("I'm another nice formatted paragraph. I'm intended to demonstrate how the space after paragraph looks like.");

dataDir = dataDir + "DocumentBuilderSetParagraphFormatting_out.doc";
doc.Save(dataDir);

應(yīng)用段落樣式

一些格式對(duì)象（例如Font或ParagraphFormat）支持樣式。單個(gè)內(nèi)置或用戶定義的樣式由Style對(duì)象表示，該對(duì)象包含相應(yīng)的樣式屬性，例如名稱，基本樣式，樣式的字體和段落格式，等等。

此外， Style 對(duì)象提供Style.StyleIdentifier 屬性，該 屬性返回由Style.StyleIdentifier 枚舉值表示的與語(yǔ)言環(huán)境無(wú)關(guān)的樣式標(biāo)識(shí)符 。關(guān)鍵是Microsoft Word中內(nèi)置樣式的名稱針對(duì)不同的語(yǔ)言進(jìn)行了本地化。使用樣式標(biāo)識(shí)符，無(wú)論文檔語(yǔ)言是什么，都可以找到正確的樣式。枚舉值對(duì)應(yīng)于Microsoft Word內(nèi)置樣式，例如Normal，Heading 1，Heading 2等。所有用戶定義的樣式均分配有 StyleIdentifier.User值。下例顯示了如何應(yīng)用段落樣式。

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// Set paragraph style
builder.ParagraphFormat.StyleIdentifier = StyleIdentifier.Title;

builder.Write("Hello");
dataDir = dataDir + "DocumentBuilderApplyParagraphStyle_out.doc";
doc.Save(dataDir);

插入樣式分隔符以放置不同的段落樣式

一些格式對(duì)象（例如Font或ParagraphFormat）支持樣式。單個(gè)內(nèi)置或用戶定義的樣式由Style對(duì)象表示，該對(duì)象包含相應(yīng)的樣式屬性，例如名稱，基本樣式，樣式的字體和段落格式，等等。

可以使用Ctrl + Alt +在MS Word中輸入鍵盤快捷鍵將樣式分隔符添加到段落的末尾。此功能允許在一個(gè)邏輯打印段落中使用兩種不同的段落樣式。如果要使特定標(biāo)題開(kāi)頭的某些文本出現(xiàn)在目錄中，但又不想整個(gè)標(biāo)題出現(xiàn)在目錄中，則可以使用此功能。下面的代碼示例演示如何插入樣式分隔符以放置不同的段落樣式。

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

Style paraStyle = builder.Document.Styles.Add(StyleType.Paragraph, "MyParaStyle");
paraStyle.Font.Bold = false;
paraStyle.Font.Size = 8;
paraStyle.Font.Name = "Arial";

// Append text with "Heading 1" style.
builder.ParagraphFormat.StyleIdentifier = StyleIdentifier.Heading1;
builder.Write("Heading 1");
builder.InsertStyleSeparator();

// Append text with another style.
builder.ParagraphFormat.StyleName = paraStyle.Name;
builder.Write("This is text with some other formatting ");
 
dataDir = dataDir + "InsertStyleSeparator_out.doc";

// Save the document to disk.
doc.Save(dataDir);

在段落上應(yīng)用邊框和底紋

邊框由BorderCollection表示。這是按索引或按邊框類型訪問(wèn)的Border對(duì)象的集合。邊框類型由BorderType枚舉表示。枚舉的某些值適用于多個(gè)或僅一個(gè)文檔元素。例如，BorderType.Bottom適用于段落或表格單元格，而B(niǎo)orderType.DiagonalDown僅指定表格單元格中的對(duì)角線邊框。

邊框集合和每個(gè)單獨(dú)的邊框都具有相似的屬性，例如顏色，線條樣式，線條寬度，距文本的距離以及可選的陰影。它們由相同名稱的屬性表示。您可以通過(guò)組合屬性值來(lái)實(shí)現(xiàn)不同的邊框類型。此外，BorderCollection和Border對(duì)象都允許您通過(guò)調(diào)用Border.ClearFormatting方法將這些值重置為默認(rèn)值。請(qǐng)注意，當(dāng)邊框?qū)傩灾刂脼槟J(rèn)值時(shí)，邊框是不可見(jiàn)的。該 著色 類包含文檔元素的材質(zhì)屬性。您可以設(shè)置所需的明暗處理紋理以及應(yīng)用于元素的背景和前景的顏色。

陰影紋理設(shè)置有 TextureIndex 枚舉值，該值允許將各種圖案應(yīng)用到 Shading 對(duì)象。例如，要為文檔元素設(shè)置背景色，請(qǐng)使用TextureIndex.TextureSolid值并適當(dāng)設(shè)置前景色。下例顯示了如何對(duì)段落應(yīng)用邊框和陰影。下例顯示了如何對(duì)段落應(yīng)用邊框和陰影。

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// Set paragraph borders
BorderCollection borders = builder.ParagraphFormat.Borders;
borders.DistanceFromText = 20;
borders[BorderType.Left].LineStyle = LineStyle.Double;
borders[BorderType.Right].LineStyle = LineStyle.Double;
borders[BorderType.Top].LineStyle = LineStyle.Double;
borders[BorderType.Bottom].LineStyle = LineStyle.Double;

// Set paragraph shading
Shading shading = builder.ParagraphFormat.Shading;
shading.Texture = TextureIndex.TextureDiagonalCross;
shading.BackgroundPatternColor = System.Drawing.Color.LightCoral;
shading.ForegroundPatternColor = System.Drawing.Color.LightSalmon;

builder.Write("I'm a formatted paragraph with double border and nice shading.");
dataDir = dataDir + "DocumentBuilderApplyBordersAndShadingToParagraph_out.doc";
doc.Save(dataDir);