国产Excel开发组件Spire.XLS【转换】教程（7）：将C#/VB.NET：将 CSV 转换为数据表

第 1 步：为 .NET 安装 Spire.XLS

首先，您需要添加 Spire.XLS for .NET 包中包含的 DLL 文件作为 .NET 项目中的引用。DLL 文件可以从此链接下载或通过NuGet安装。

PM> Install-Package Spire.XLS
第 2 步：在 C# 和 VB.NET 中将 CSV 转换为 DataTable
以下是将 CSV 转换为 DataTable 的主要步骤：

• 初始化Workbook类的实例。
• 使用Workbook.LoadFromFile()方法加载 CSV 文件，并将文件路径和 CSV 文件的分隔符/分隔符以字符串的形式作为参数传递。
• 通过Workbook.Worksheets[sheetIndex]属性按索引（从零开始）获取所需的工作表。
• 使用Worksheet.ExportDataTable()方法将数据从工作表导出到 DataTable 。
  （ExportDataTable() 方法有几个重载可用于控制数据的导出方式，例如 ExportDataTable(CellRange range, bool exportColumnNames, bool computedFormulaValue)：此重载允许您指定要导出的范围以及是否导出公式的列名和计算值。

【C＃】

using Spire.Xls;using System;using System.Data;using System.Windows.Forms;namespace ConvertCsvToExcel{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){//Create a Workbook instanceWorkbook workbook = new Workbook();//Load a CSV fileworkbook.LoadFromFile(@"C:UsersAdministratorDesktopInput.csv", ",");//Get the first worksheetWorksheet worksheet = workbook.Worksheets[0];//Export data from the worksheet to a DataTableDataTable dt = worksheet.ExportDataTable();//This overload enables you to specify the range to be exported along with whether to export column names and calculated values of formulas//DataTable dt = worksheet.ExportDataTable(worksheet.Range["A1:C10"], true, true);//Show the DataTable in a DataGridView control (optional)dataGridView1.DataSource = dt;}}}

【VB.NET】

Imports Spire.XlsImports SystemImports System.DataImports System.Windows.FormsNamespace ConvertCsvToExcelPublic Partial Class Form1Inherits FormPublic Sub New()InitializeComponent()End SubPrivate Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs)'Create a Workbook instanceDim workbook As Workbook = New Workbook()'Load a CSV fileworkbook.LoadFromFile("Input.csv", ",")'Get the first worksheetDim worksheet As Worksheet = workbook.Worksheets(0)'Export data from the worksheet to a DataTableDim dt As DataTable = worksheet.ExportDataTable()'This overload enables you to specify the range to be exported along with whether to export column names and calculated values of formulas'DataTable dt = worksheet.ExportDataTable(worksheet.Range["A1:C10"], true, true);'Show the DataTable in a DataGridView control (optional)dataGridView1.DataSource = dtEnd SubEnd ClassEnd Namespace

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