如何在 .NET 中使用表格

Aspose.Slides FOSS for .NET supports creating tables on slides with configurable column widths and row heights. This guide shows how to add a table, populate it with data, and apply basic text formatting to cells.

分步指南

步骤 1：安装软件包

dotnet add package Aspose.Slides.Foss

步骤 2：创建或打开演示文稿

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var slide = prs.Slides[0];
// ... add table ...
prs.Save("table.pptx", SaveFormat.Pptx);

步骤 3：定义列宽和行高

表格需要以点为单位明确指定列宽和行高（1 点 = 1/72 英寸）。标准幻灯片宽度为 720 点，高度为 540 点。.

var colWidths = new double[] { 200.0, 150.0, 150.0 };   // 3 columns
var rowHeights = new double[] { 45.0, 40.0, 40.0 };     // 3 rows

步骤 4：添加表格

slide.Shapes.AddTable(x, y, columnWidths, rowHeights) 在位置创建表格 (x, y):

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var slide = prs.Slides[0];

var colWidths = new double[] { 200.0, 150.0, 150.0 };
var rowHeights = new double[] { 45.0, 40.0, 40.0 };
var table = slide.Shapes.AddTable(50, 100, colWidths, rowHeights);

prs.Save("table.pptx", SaveFormat.Pptx);

步骤 5：设置单元格文本

通过以下方式访问单元格 table.Rows[rowIndex][colIndex] 并通过以下方式分配文本 .TextFrame.Text:

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var slide = prs.Slides[0];

var colWidths = new double[] { 200.0, 150.0, 150.0 };
var rowHeights = new double[] { 45.0, 40.0, 40.0 };
var table = slide.Shapes.AddTable(50, 100, colWidths, rowHeights);

// Header row (row 0)
string[] headers = { "Product", "Units Sold", "Revenue" };
for (int col = 0; col < headers.Length; col++)
    table.Rows[0][col].TextFrame.Text = headers[col];

// Data rows
string[][] data = {
    new[] { "Widget A", "1,200", "$24,000" },
    new[] { "Widget B", "850", "$17,000" },
};
for (int rowIdx = 0; rowIdx < data.Length; rowIdx++)
    for (int col = 0; col < data[rowIdx].Length; col++)
        table.Rows[rowIdx + 1][col].TextFrame.Text = data[rowIdx][col];

prs.Save("sales-table.pptx", SaveFormat.Pptx);

步骤 6：格式化标题单元格文本

使用以下方式对标题单元格应用粗体格式 PortionFormat:

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Drawing;

for (int col = 0; col < headers.Length; col++)
{
    var cell = table.Rows[0][col];
    var portions = cell.TextFrame.Paragraphs[0].Portions;
    if (portions.Count > 0)
    {
        var fmt = portions[0].PortionFormat;
        fmt.FontBold = NullableBool.True;
        fmt.FillFormat.FillType = FillType.Solid;
        fmt.FillFormat.SolidFillColor.Color = Color.FromArgb(255, 255, 255, 255);
    }
}

完整可运行示例

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Drawing;
using Aspose.Slides.Foss.Export;

string[][] dataRows = {
    new[] { "North", "$1.2M", "+8%" },
    new[] { "South", "$0.9M", "+4%" },
    new[] { "East",  "$1.5M", "+12%" },
    new[] { "West",  "$0.7M", "+2%" },
};
string[] headers = { "Region", "Revenue", "Growth" };

using var prs = new Presentation();
var slide = prs.Slides[0];

var colWidths = new double[] { 180.0, 140.0, 120.0 };
var rowHeights = new double[dataRows.Length + 1];
rowHeights[0] = 45.0;
for (int i = 1; i < rowHeights.Length; i++) rowHeights[i] = 38.0;

var table = slide.Shapes.AddTable(60, 80, colWidths, rowHeights);

// Header row
for (int col = 0; col < headers.Length; col++)
{
    var cell = table.Rows[0][col];
    cell.TextFrame.Text = headers[col];
    if (cell.TextFrame.Paragraphs[0].Portions.Count > 0)
    {
        var fmt = cell.TextFrame.Paragraphs[0].Portions[0].PortionFormat;
        fmt.FontBold = NullableBool.True;
    }
}

// Data rows
for (int rowIdx = 0; rowIdx < dataRows.Length; rowIdx++)
    for (int col = 0; col < dataRows[rowIdx].Length; col++)
        table.Rows[rowIdx + 1][col].TextFrame.Text = dataRows[rowIdx][col];

prs.Save("regional-revenue.pptx", SaveFormat.Pptx);
Console.WriteLine("Saved regional-revenue.pptx");

常见问题及解决方案

IndexOutOfRangeException 在访问时 table.Rows[row][col]

行和列索引从零开始。如果您定义了 rowHeights 包含 3 个元素，则有效的行索引为 0、1、2。.

单元格文本在保存的文件中未显示

始终通过以下方式赋值 .TextFrame.Text,，而不是通过 .Text 直接在单元格对象上：:

// Correct
table.Rows[0][0].TextFrame.Text = "Header";

// Wrong: will not compile or silent failure
// table.Rows[0][0].Text = "Header";

表格位置超出幻灯片

检查以下内容 x + sum(colWidths) <= 720 和 y + sum(rowHeights) <= 540 用于标准幻灯片。.

常见问答

我可以合并表格单元格吗？?

此版本不支持单元格合并。.

我可以为整个表格设置背景颜色吗？?

对每个单元格分别应用填充格式：:

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Drawing;

for (int row = 0; row < table.Rows.Count; row++)
    for (int col = 0; col < table.Rows[row].Count; col++)
    {
        var cell = table.Rows[row][col];
        cell.CellFormat.FillFormat.FillType = FillType.Solid;
        cell.CellFormat.FillFormat.SolidFillColor.Color = Color.FromArgb(255, 240, 248, 255);
    }

我可以设置单元格边框样式吗？?

单元格边框属性可通过以下方式访问 cell.CellFormat.BorderLeft, BorderTop, BorderRight,，以及 BorderBottom 属性。请参阅 API 参考以获取完整的边框格式属性列表。.