To download the trial version of EasyXLS Excel Library, press the below button:
If you already own a license key, you may login and download EasyXLS from your account.
Install the downloaded EasyXLS installer for v8.6 or earlier.
Step 2: License file setup
Step required for EasyXLS v9.0 or later.
If you are using a trial, generate a trial license file from EasyXLS trials page. The trial license is valid for 30-days.
If you own a license key, you may login to the account that purchased the license and generate the license file from: https://www.easyxls.com/my-orders
Setup the license file into your project using these guidelines.
Step 3: Create a C# project
If don't have a project, create one as ASP.NET web application, windows forms app, console application, class library or service.
Step 4: Include EasyXLS library into project
EasyXLS.dll must be added as reference to your project. EasyXLS.dll can be found: - Inside the downloaded archive at Step 1 for EasyXLS v9.0 or later - Under installation path for EasyXLS v8.6 or earlier, in "Dot NET version" folder.
Step 5: Run C# code that exports DataSet to Excel
Execute the following C# code that exports DataSet to Excel.
/* -----------------------------------------------------------------------
* Tutorial 01
*
* This code sample shows how to export DataSet to Excel file in C#.
* The DataSet contains data from a SQL database, but it also can contain
* data from other sources like GridView, DataGridView, DataGrid or other.
* The cells are formatted using a predefined format.
* -------------------------------------------------------------------- */using System;
using System.Data;
using EasyXLS;
using EasyXLS.Constants;
public class Tutorial01
{
[STAThread]
static void Main()
{
Console.WriteLine("Tutorial 01\n-----------\n");
// Create an instance of the class that exports Excel files
ExcelDocument workbook = new ExcelDocument();
// Create the database connection
String sConnectionString = "Initial Catalog=Northwind;Data Source=localhost;Integrated Security=SSPI;";
System.Data.SqlClient.SqlConnection sqlConnection =
new System.Data.SqlClient.SqlConnection(sConnectionString);
sqlConnection.Open();
// Create the adapter used to fill the dataset
String sQueryString = "SELECT TOP 100 CAST(Month(ord.OrderDate) AS varchar) + " +
"'/' + CAST(Day(ord.OrderDate) AS varchar) + " +
"'/' + CAST(year(ord.OrderDate) AS varchar) AS 'Order Date', " +
"P.ProductName AS 'Product Name', O.UnitPrice AS Price, O.Quantity, " +
"O.UnitPrice * O. Quantity AS Value " +
"FROM Orders AS ord, [Order Details] AS O, Products AS P " +
"WHERE O.ProductID = P.ProductID AND O.OrderID = ord.OrderID";
System.Data.SqlClient.SqlDataAdapter adp =
new System.Data.SqlClient.SqlDataAdapter(sQueryString, sqlConnection);
// Populate the dataset
DataSet dataset = new DataSet();
adp.Fill(dataset);
// Export dataset to Excel file
Console.WriteLine("Writing file C:\\Samples\\Tutorial01 - export DataSet to Excel.xlsx.");
workbook.easy_WriteXLSXFile_FromDataSet("C:\\Samples\\Tutorial01 - export DataSet to Excel.xlsx", dataset,
new ExcelAutoFormat(Styles.AUTOFORMAT_EASYXLS1), "Sheet1");
// Confirm export of Excel file
String sError = workbook.easy_getError();
if (sError.Equals(""))
Console.Write("\nFile successfully created. Press Enter to Exit...");
else
Console.Write("\nError encountered: " + sError + "\nPress Enter to Exit...");
// Close the database connection
sqlConnection.Close();
// Dispose memory
workbook.Dispose();
dataset.Dispose();
sqlConnection.Dispose();
adp.Dispose();
Console.ReadLine();
}
}
