IronXL 和 CsvHelper 的比较

// Load the CSV file and convert it to an Excel format
WorkBook workbook = WorkBook.LoadCSV("test.csv", fileFormat: ExcelFileFormat.XLSX, ListDelimiter: ",");
// Access the default worksheet
WorkSheet ws = workbook.DefaultWorkSheet;

// Save the workbook as an Excel file
workbook.SaveAs("CsvToExcelConversion.xlsx");

' Load the CSV file and convert it to an Excel format
Dim workbook As WorkBook = WorkBook.LoadCSV("test.csv", fileFormat:= ExcelFileFormat.XLSX, ListDelimiter:= ",")
' Access the default worksheet
Dim ws As WorkSheet = workbook.DefaultWorkSheet

' Save the workbook as an Excel file
workbook.SaveAs("CsvToExcelConversion.xlsx")

// Load WorkBook
var workbook = WorkBook.Load(@"Spreadsheets/sample.xlsx");

' Load WorkBook
Dim workbook = WorkBook.Load("Spreadsheets/sample.xlsx")

// Open the sheet for reading
var worksheet = workbook.GetWorkSheet("sheetnamegoeshere");

' Open the sheet for reading
Dim worksheet = workbook.GetWorkSheet("sheetnamegoeshere")

// Read from ranges of cells elegantly
foreach (var cell in worksheet["A2:A10"])
{
    Console.WriteLine("Cell {0} has value '{1}'", cell.AddressString, cell.Text);
}

' Read from ranges of cells elegantly
For Each cell In worksheet("A2:A10")
	Console.WriteLine("Cell {0} has value '{1}'", cell.AddressString, cell.Text)
Next cell

// Set formulas in specific cells
worksheet["A1"].Formula = "SUM(B8:C12)";
worksheet["B8"].Formula = "=C9/C11";
worksheet["G30"].Formula = "MAX(C3:C7)";

// Force recalculate all formula values in all sheets
workbook.EvaluateAll();

' Set formulas in specific cells
worksheet("A1").Formula = "SUM(B8:C12)"
worksheet("B8").Formula = "=C9/C11"
worksheet("G30").Formula = "MAX(C3:C7)"

' Force recalculate all formula values in all sheets
workbook.EvaluateAll()

// Load the Excel Workbook
WorkBook wb = WorkBook.Load("Normal_Excel_File.xlsx");

// Save the workbook as a CSV file
wb.SaveAsCsv("SaveAsCSV.csv", ",");
// This will save as "SaveAsCSV.Sheet1.csv"

' Load the Excel Workbook
Dim wb As WorkBook = WorkBook.Load("Normal_Excel_File.xlsx")

' Save the workbook as a CSV file
wb.SaveAsCsv("SaveAsCSV.csv", ",")
' This will save as "SaveAsCSV.Sheet1.csv"

// Define the Person class to map CSV records
public class Person
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public int? Age { get; set; }
    public string IsActive { get; set; }
}

' Define the Person class to map CSV records
Public Class Person
	Public Property FirstName() As String
	Public Property LastName() As String
	Public Property Age() As Integer?
	Public Property IsActive() As String
End Class

// Define the path to the CSV file
var fileName = @"<path to our CSV file>";

// Configure CsvHelper
var configuration = new CsvConfiguration(CultureInfo.InvariantCulture)
{
    Encoding = Encoding.UTF8,
    Delimiter = ","
};

// Read CSV file
using (var fs = File.Open(fileName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
    using (var textReader = new StreamReader(fs, Encoding.UTF8))
    using (var csv = new CsvReader(textReader, configuration))
    {
        var data = csv.GetRecords<Person>();

        // Iterate over each person record
        foreach (var person in data)
        {
            // Process each Person object
        }
    }
}

' Define the path to the CSV file
Dim fileName = "<path to our CSV file>"

' Configure CsvHelper
Dim configuration = New CsvConfiguration(CultureInfo.InvariantCulture) With {
	.Encoding = Encoding.UTF8,
	.Delimiter = ","
}

' Read CSV file
Using fs = File.Open(fileName, FileMode.Open, FileAccess.Read, FileShare.Read)
	Using textReader = New StreamReader(fs, Encoding.UTF8)
	Using csv = New CsvReader(textReader, configuration)
		Dim data = csv.GetRecords(Of Person)()

		' Iterate over each person record
		For Each person In data
			' Process each Person object
		Next person
	End Using
	End Using
End Using

// Custom Boolean Converter for CsvHelper
public class CustomBooleanConverter : DefaultTypeConverter
{
    public override object ConvertFromString(string text, IReaderRow row, MemberMapData memberMapData)
    {
        // Convert "Yes" to true and anything else to false
        return text.Equals("Yes", StringComparison.OrdinalIgnoreCase);
    }
}

' Custom Boolean Converter for CsvHelper
Public Class CustomBooleanConverter
	Inherits DefaultTypeConverter

	Public Overrides Function ConvertFromString(ByVal text As String, ByVal row As IReaderRow, ByVal memberMapData As MemberMapData) As Object
		' Convert "Yes" to true and anything else to false
		Return text.Equals("Yes", StringComparison.OrdinalIgnoreCase)
	End Function
End Class