La bibliothèque Excel C#

Lire des fichiers Excel sans interopérabilité Voir les 37 exemples de code

using IronXL;
using System;
using System.Linq;

// Supported for XLSX, XLS, XLSM, XLTX, CSV and TSV
WorkBook workBook = WorkBook.Load("sample.xlsx");

// Select worksheet at index 0
WorkSheet workSheet = workBook.WorkSheets[0];

// Get any existing worksheet
WorkSheet firstSheet = workBook.DefaultWorkSheet;

// Select a cell and return the converted value
int cellValue = workSheet["A2"].IntValue;

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

// Calculate aggregate values such as Min, Max and Sum
decimal sum = workSheet["A2:A10"].Sum();

// Linq compatible
decimal max = workSheet["A2:A10"].Max(c => c.DecimalValue);

Install-Package IronXL.Excel

Feuilles de calcul Excel Voir les 37 exemples de code

using IronXL;

// Create new Excel spreadsheet
WorkBook workBook = WorkBook.Create(ExcelFileFormat.XLSX);

// Create worksheets (workSheet1, workSheet2, workSheet3)
WorkSheet workSheet1 = workBook.CreateWorkSheet("workSheet1");
WorkSheet workSheet2 = workBook.CreateWorkSheet("workSheet2");
WorkSheet workSheet3 = workBook.CreateWorkSheet("workSheet3");

// Set worksheet position (workSheet2, workSheet1, workSheet3)
workBook.SetSheetPosition("workSheet2", 0);

// Set active for workSheet3
workBook.SetActiveTab(2);

// Remove workSheet1
workBook.RemoveWorkSheet(1);

workBook.SaveAs("manageWorkSheet.xlsx");

Install-Package IronXL.Excel

Créer des fichiers Excel Voir les 37 exemples de code

using IronXL;

// Create new Excel WorkBook document
WorkBook workBook = WorkBook.Create();

// Convert XLSX to XLS
WorkBook xlsWorkBook = WorkBook.Create(ExcelFileFormat.XLS);

// Create a blank WorkSheet
WorkSheet workSheet = workBook.CreateWorkSheet("new_sheet");

// Add data and styles to the new worksheet
workSheet["A1"].Value = "Hello World";
workSheet["A1"].Style.WrapText = true;
workSheet["A2"].BoolValue = true;
workSheet["A2"].Style.BottomBorder.Type = IronXL.Styles.BorderType.Double;

// Save the excel file as XLS, XLSX, CSV, TSV, JSON, XML, HTML and streams
workBook.SaveAs("sample.xlsx");

Install-Package IronXL.Excel

Convertir les types de fichiers de feuilles de calcul Voir les 37 exemples de code

using IronXL;
using System.IO;

// Import any XLSX, XLS, XLSM, XLTX, CSV and TSV
WorkBook workBook = WorkBook.Load("sample.xlsx");

// Export the excel file as XLS, XLSX, XLSM, CSV, TSV, JSON, XML
workBook.SaveAs("sample.xls");
workBook.SaveAs("sample.xlsx");
workBook.SaveAs("sample.tsv");
workBook.SaveAsCsv("sample.csv");
workBook.SaveAsJson("sample.json");
workBook.SaveAsXml("sample.xml");

// Export the excel file as Html, Html string
workBook.ExportToHtml("sample.html");
string htmlString = workBook.ExportToHtmlString();

// Export the excel file as Binary, Byte array, Data set, Stream
byte[] binary = workBook.ToBinary();
byte[] byteArray = workBook.ToByteArray();
System.Data.DataSet dataSet = workBook.ToDataSet(); // Allow easy integration with DataGrids, SQL and EF
Stream stream = workBook.ToStream();

Install-Package IronXL.Excel

Excel vers SQL via System.Data.DataSet Voir les 37 exemples de code

using IronXL;
using System;
using System.Data;

// Supported for XLSX, XLS, XLSM, XLTX, CSV and TSV
WorkBook workBook = WorkBook.Load("sample.xlsx");

// Convert the whole Excel WorkBook to a DataSet
DataSet dataSet = workBook.ToDataSet();

foreach (DataTable table in dataSet.Tables)
{
    Console.WriteLine(table.TableName);

    // Enumerate by rows or columns first at your preference
    foreach (DataRow row in table.Rows)
    {
        for (int i = 0 ; i < table.Columns.Count ; i++)
        {
            Console.Write(row[i]);
        }
    }
}

Install-Package IronXL.Excel

Excel vers SQL et DataGrid via DataTable Voir les 37 exemples de code

using IronXL;
using System;
using System.Data;

// Supported for XLSX, XLS, XLSM, XLTX, CSV and TSV
WorkBook workBook = WorkBook.Load("sample.xlsx");

// Select default sheet
WorkSheet workSheet = workBook.DefaultWorkSheet;

// Convert the worksheet to DataTable
DataTable dataTable = workSheet.ToDataTable(true);

// Enumerate by rows or columns first at your preference
foreach (DataRow row in dataTable.Rows)
{
    for (int i = 0 ; i < dataTable.Columns.Count ; i++)
    {
        Console.Write(row[i]);
    }
}

Install-Package IronXL.Excel

Formatage conditionnel dans Excel Voir les 37 exemples de code

using IronXL;
using IronXL.Formatting.Enums;
using IronXL.Styles;

WorkBook workBook = WorkBook.Load("sample.xlsx");
WorkSheet workSheet = workBook.DefaultWorkSheet;

// Create conditional formatting rule
var rule = workSheet.ConditionalFormatting.CreateConditionalFormattingRule(ComparisonOperator.LessThan, "8");
// Set style options
rule.FontFormatting.IsBold = true;
rule.FontFormatting.FontColor = "#123456";
rule.BorderFormatting.RightBorderColor = "#ffffff";
rule.BorderFormatting.RightBorderType = BorderType.Thick;
rule.PatternFormatting.BackgroundColor = "#54bdd9";
rule.PatternFormatting.FillPattern = FillPattern.Diamonds;
// Apply formatting on specified region
workSheet.ConditionalFormatting.AddConditionalFormatting("A3:A8", rule);

// Create conditional formatting rule
var rule1 = workSheet.ConditionalFormatting.CreateConditionalFormattingRule(ComparisonOperator.Between, "7", "10");
// Set style options
rule1.FontFormatting.IsItalic = true;
rule1.FontFormatting.UnderlineType = FontUnderlineType.Single;
// Apply formatting on specified region
workSheet.ConditionalFormatting.AddConditionalFormatting("A3:A9", rule1);

workBook.SaveAs("applyConditionalFormatting.xlsx");

Install-Package IronXL.Excel

Protéger les fichiers Excel Voir les 37 exemples de code

using IronXL;

WorkBook workBook = WorkBook.Load("sample.xlsx");
WorkSheet workSheet = workBook.DefaultWorkSheet;

// Open protected spreadsheet file
WorkBook protectedWorkBook = WorkBook.Load("sample.xlsx", "IronSoftware");

// Spreadsheet protection
// Set protection for spreadsheet file
workBook.Encrypt("IronSoftware");

// Remove protection for spreadsheet file. Original password is required.
workBook.Password = null;

workBook.Save();

// Worksheet protection
// Set protection for individual worksheet
workSheet.ProtectSheet("IronXL");

// Remove protection for particular worksheet. It works without password!
workSheet.UnprotectSheet();

workBook.Save();

Install-Package IronXL.Excel

Formules Excel en C# Voir les 37 exemples de code

using IronXL;
using System.Linq;

WorkBook workBook = WorkBook.Load("sample.xlsx");
WorkSheet workSheet = workBook.DefaultWorkSheet;

// Set Formulas
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();

// Get the formula's calculated value.  e.g. "52"
var formulaValue = workSheet["G30"].First().FormattedCellValue;

// Get the formula as a string. e.g. "Max(C3:C7)"
string formulaString = workSheet["G30"].Formula;

// Save changes with updated formulas and calculated values.
workBook.Save();

Install-Package IronXL.Excel

Modifier les métadonnées d'Excel en C# Voir les 37 exemples de code

using IronXL;
using System;

WorkBook workBook = WorkBook.Load("sample.xlsx");

// Set author
workBook.Metadata.Author = "Your Name";
// Set comments
workBook.Metadata.Comments = "Monthly report";
// Set title
workBook.Metadata.Title = "July";
// Set keywords
workBook.Metadata.Keywords = "Report";

// Read the creation date of the excel file
DateTime? creationDate = workBook.Metadata.Created;

// Read the last printed date of the excel file
DateTime? printDate = workBook.Metadata.LastPrinted;

workBook.SaveAs("editedMetadata.xlsx");

Install-Package IronXL.Excel

Explorer le code, installer IronXL avec NuGet

IronXL

Nuget

Voir les nouveautés

Support multiplateforme

Conçu pour C#, F#, & VB.NET en cours d'exécution .NET 8, 7, 6, Core, Standard ou Framework

La bibliothèque Excel C#

Une bibliothèque Excel C# qui privilégie la précision, la facilité d'utilisation et la rapidité.

IronXL est la principale bibliothèque C# pour Excel permettant de générer et d'éditer des documents Excel dans .NET. Son API conviviale permet aux développeurs d'ajouter des fonctionnalités Excel aux projets .NET en quelques minutes.

L'API Excel dont vous avez besoin, sans les tracas d'Office Interop.

Version d'IronXL 2024.9

Caractéristiques et améliorations

Voir les nouveautés

Compatibilité

.NET Langues :

C#, VB.NET, F#

Plateformes :

Types d'applications :

Console, Web et bureau

Systèmes d'exploitation :

IDE

Certification

Authenticode de Microsoft

Cahiers d'exercices

Créer ou charger des feuilles de calcul

Enregistrer ou exporter des formats

Objets System.Data

Importation et exportation en tant que DataSet ou DataTable

Modifier les classeurs

Feuilles de travail

Modifier les formules :

Trier les données :

Créer et modifier des graphiques :

Surface, Barre, Colonne, Lignes, Tarte, Nuage de points

Modifier la mise en page :

Panneaux de congélation
Taille automatique Rangs/Colonnes
Ajouter et supprimer Rangs/Colonnes

Modifier les feuilles de travail :

Plages de cellules

Fonctions de la plage de cellules :

Cellules de style :

Fonctions mathématiques :

Moyenne et Somme
Min et Max

Définir les formats de données des cellules :

Texte, Nombre, Formule, Date, Devise, Scientifique, Heure, Booléen, Formats personnalisés

Voir l'ensemble des caractéristiques

Des millions d'ingénieurs dans le monde entier lui font confiance

Une ingénierie de classe mondiale,
assistance 24 heures sur 24

Parler à un expert

Prêt à commencer ? Version : 2024.9 vient de paraître

Voir les licences > ;

IronXL fait partie d'IRONSUITE

9 produits de l'API .NET pour vos documents de bureau

Obtenez 9 produits pour le prix de 2

Démarrer l'essai gratuit