using Spire.Doc;
using Spire.Doc.Documents;
using System.Drawing;

namespace ParagraphShading
{
    class Program
    {
        static void Main(string[] args)
        {
            // 創(chuàng)建一個(gè)新的Word文檔
            Document document = new Document();
            Section section = document.AddSection();

            // 添加一個(gè)段落
            Paragraph paragraph1 = section.AddParagraph();
            paragraph1.AppendText("這是一個(gè)沒(méi)有底紋的段落。");

            // 添加另一個(gè)段落，并設(shè)置底紋
            Paragraph paragraph2 = section.AddParagraph();
            paragraph2.AppendText("這個(gè)段落將擁有一個(gè)綠色的背景底紋。");
            
            // 設(shè)置段落底紋的背景顏色
            paragraph2.Format.Shading.BackgroundPatternColor = Color.LightGreen;
            // 可以選擇設(shè)置底紋圖案和前景顏色，這里我們使用純色，所以Texture為Solid，F(xiàn)oregroundColor不影響
            paragraph2.Format.Shading.Texture = TextureStyle.TextureSolid;
            // paragraph2.Format.Shading.ForegroundColor = Color.DarkGreen; // 如果Texture不是Solid，可以設(shè)置前景顏色

            // 添加第三個(gè)段落，演示不同底紋效果
            Paragraph paragraph3 = section.AddParagraph();
            paragraph3.AppendText("這個(gè)段落將使用一個(gè)水平條紋底紋。");
            paragraph3.Format.Shading.BackgroundPatternColor = Color.LightBlue;
            paragraph3.Format.Shading.ForegroundColor = Color.DarkBlue;
            paragraph3.Format.Shading.Texture = TextureStyle.TextureHorizontal;

            // 保存文檔
            document.SaveToFile("ParagraphShading.docx", FileFormat.Docx2013);
            document.Dispose();
            System.Console.WriteLine("文檔已生成：ParagraphShading.docx");
        }
    }
}

using Spire.Doc;
using Spire.Doc.Documents;
using System.Drawing;

namespace TextShading
{
    class Program
    {
        static void Main(string[] args)
        {
            Document document = new Document();
            Section section = document.AddSection();

            Paragraph paragraph = section.AddParagraph();
            paragraph.AppendText("這是一段包含重要關(guān)鍵詞的文本。");

            // 通過(guò)查找文本來(lái)獲取TextRange
            TextSelection selection = paragraph.Find("重要關(guān)鍵詞", true, true);
            if (selection != null)
            {
                TextRange textRange = selection.GetAsOneRange();
                // 設(shè)置TextRange的底紋
                textRange.CharacterFormat.Shading.BackgroundPatternColor = Color.Yellow;
                textRange.CharacterFormat.Shading.Texture = TextureStyle.TextureSolid;
            }

            // 也可以在追加文本時(shí)直接設(shè)置其底紋
            Paragraph paragraph2 = section.AddParagraph();
            TextRange tr1 = paragraph2.AppendText("另一個(gè)示例：");
            TextRange tr2 = paragraph2.AppendText("高亮文本");
            tr2.CharacterFormat.Shading.BackgroundPatternColor = Color.LightCoral;
            tr2.CharacterFormat.Shading.Texture = TextureStyle.TextureSolid;
            TextRange tr3 = paragraph2.AppendText("，繼續(xù)普通文本。");

            // 保存文檔
            document.SaveToFile("TextShading.docx", FileFormat.Docx2013);
            document.Dispose();
            System.Console.WriteLine("文檔已生成：TextShading.docx");
        }
    }
}