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 adds cell validation to Excel sheet
Execute the following C# code that exports an Excel file with two types of data validation defined: list and whole number.
/* --------------------------------------------------------------
* Tutorial 13
*
* This tutorial shows how to create an Excel file in C# having
* multiple sheets. The second sheet contains a named area range.
* The A1:A10 cell range contains data validators, drop down list
* and whole number validation.
* ----------------------------------------------------------- */using System;
using EasyXLS;
using EasyXLS.Constants;
public class Tutorial13
{
[STAThread]
static void Main()
{
Console.WriteLine("Tutorial 13\n----------\n");
// Create an instance of the class that exports Excel files, having two sheets
ExcelDocument workbook = new ExcelDocument(2);
// Set the sheet names
workbook.easy_getSheetAt(0).setSheetName("First tab");
workbook.easy_getSheetAt(1).setSheetName("Second tab");
// Get the table of data for the second worksheet and populate the worksheet
ExcelWorksheet xlsSecondTab = (ExcelWorksheet)workbook.easy_getSheetAt(1);
ExcelTable xlsSecondTable = xlsSecondTab.easy_getExcelTable();
xlsSecondTable.easy_getCell("A1").setValue("Range data 1");
xlsSecondTable.easy_getCell("A2").setValue("Range data 2");
xlsSecondTable.easy_getCell("A3").setValue("Range data 3");
xlsSecondTable.easy_getCell("A4").setValue("Range data 4");
// Create a named area range
xlsSecondTab.easy_addName("Range", "=Second tab!$A$1:$A$4");
// Add data validation as drop down list type
ExcelWorksheet xlsFirstTab = (ExcelWorksheet)workbook.easy_getSheetAt(0);
xlsFirstTab.easy_addDataValidator("A1:A10", DataValidator.VALIDATE_LIST,
DataValidator.OPERATOR_EQUAL_TO, "=Range", "");
// Add data validation as whole number type
xlsFirstTab.easy_addDataValidator("B1:B10", DataValidator.VALIDATE_WHOLE_NUMBER,
DataValidator.OPERATOR_BETWEEN, "=4", "=100");
// Export Excel file
Console.WriteLine("Writing file C:\\Samples\\Tutorial13 - cell validation in Excel.xlsx.");
workbook.easy_WriteXLSXFile("C:\\Samples\\Tutorial13 - cell validation in Excel.xlsx");
// 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...");
// Dispose memory
workbook.Dispose();
Console.ReadLine();
}
}
