如何在word文档中快速填入一个table？

Question

我正在使用 Microsoft.Office.Interop.Word 并希望将给定的数据库输出为 Word 文档中的 table。但是在我第一次尝试之后（下面的示例），我很快注意到迭代每个 table 行的时间随着行数的增加而迅速增加。

using Word = Microsoft.Office.Interop.Word;

private void InsertTableWithRandomValue(Word.Document doc)
{
    var par = doc.Paragraphs.Add();
    string guid = Guid.NewGuid().ToString();

    Word.Table firstTable = doc.Tables.Add(par.Range, 1000, 5);
    firstTable.Borders.Enable = 1;

    foreach (Word.Row row in firstTable.Rows)
    {
        foreach (Word.Cell cell in row.Cells)
        {
            cell.Range.Text = guid;
        }
    }
}

在具有 200 行的 table 中，写入每个条目大约需要 100 毫秒。但是，对于 2000 行，每个条目已经高达 400 毫秒，这对于我的用例来说还不够快。

有没有办法更快地遍历每一行？

如果没有，我的下一个方法是将 Word 文档暂时保存为 HTML，编辑文本，然后再次导出为 Word 文档。

Answer 1

Office Interop 真的很慢。您应该考虑使用 Open XML 创建文档。

我已经根据您的代码创建了一个示例。首先，将 DocumentFormat.OpenXml NuGet 包添加到您的项目中。

using var document = WordprocessingDocument.Create(path, WordprocessingDocumentType.Document); // or WordprocessingDocument.Open() if you want to open an existing one

// Since we create a new document, we need to add main document part, as well as body etc.
var mainDocumentPart = document.AddMainDocumentPart();

mainDocumentPart.Document = new Document();

var body = mainDocumentPart.Document.AppendChild(new Body());

// Adding borders
var borderType = new EnumValue<BorderValues>(BorderValues.Single);
UInt32Value borderSize = 16;

var table = new Table(new TableProperties(new TableBorders(
        new TopBorder
        {
            Val = borderType,
            Size = borderSize
        },
        new RightBorder
        {
            Val = borderType,
            Size = borderSize
        },
        new BottomBorder
        {
            Val = borderType,
            Size = borderSize
        },
        new LeftBorder
        {
            Val = borderType,
            Size = borderSize
        },

        new InsideVerticalBorder
        {
            Val = borderType,
            Size = borderSize
        },
        new InsideHorizontalBorder
        {
            Val = borderType,
            Size = borderSize
        }
    )
));

var guid = Guid.NewGuid().ToString();

const int rowCount = 1000;
const int columnCount = 5;

// Instead of creating a row with same cell every single time, creating a cell and then populating the rows with it would be better
var tableCell = new TableCell();
tableCell.Append(new Paragraph(new Run(new Text(guid))));

var tableRow = new TableRow();
for (var i = 0; i < columnCount; i++)
{
    tableRow.Append(new TableCell(tableCell.OuterXml)); // You cannot add same element twice, because you cannot add something that's part of a tree. So we clone it before adding
}

for (var i = 0; i < rowCount; i++)
{
    table.Append(new TableRow(tableRow.OuterXml));
}

body.Append(table);

Answer 2

我创建了一个包含您要插入 table 的内容的文本，然后将此文本转换为 table:

Document document = new Document();
int rows = 1000;
int cols = 5;

//document.Application.Visible = true;
var par = document.Paragraphs.Add();
string guid = Guid.NewGuid().ToString();

var start = DateTime.Now;

StringBuilder sb = new StringBuilder();
for (int i = 0; i < rows; i++)
{
    for (int j = 0; j < cols; j++)
    {
        sb.Append(guid);
        if (j<cols-1) sb.Append('\t');
    }
    sb.AppendLine("");
}
par.Range.Text = sb.ToString();
var r = document.Range(0,par.Range.End);
Table t = r.ConvertToTable(NumRows:rows,NumColumns:cols);
t.Borders.Enable = 1;

document.SaveAs2(@"d:\temp\test.docx");
document.Application.Quit();
Console.WriteLine($"{(DateTime.Now-start).TotalMilliseconds/1000}");
Console.ReadLine();

这大约需要 1.7 秒，而您的方法在我的系统上大约需要 38 秒。

如何在word文档中快速填入一个table？

How to quickly fill a table in a word document with many entries?

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