ListBox.Shadow

public bool Shadow { get; set; }

using System;
using Aspose.Cells;
using Aspose.Cells.Drawing;

namespace AsposeCellsExamples
{
    public class ListBoxPropertyShadowDemo
    {
        public static void Run()
        {
            Workbook workbook = new Workbook();
            Worksheet worksheet = workbook.Worksheets[0];

            // Populate list items
            worksheet.Cells["A1"].PutValue("Option 1");
            worksheet.Cells["A2"].PutValue("Option 2");
            worksheet.Cells["A3"].PutValue("Option 3");

            // Create listbox and set core properties
            ListBox listBox = worksheet.Shapes.AddListBox(2, 1, 5, 1, 100, 150);
            listBox.InputRange = "A1:A3";
            listBox.LinkedCell = "B1";
            
            // Set shadow property
            listBox.Shadow = true;

            // Save and reload to verify
            workbook.Save("ListBoxShadowDemo.xlsx");
            
            Workbook loadedWorkbook = new Workbook("ListBoxShadowDemo.xlsx");
            ListBox loadedBox = (ListBox)loadedWorkbook.Worksheets[0].Shapes[0];
            
            Console.WriteLine("Shadow enabled: " + loadedBox.Shadow);
        }
    }
}