DocumentPropertyCollection.IndexOf

public int IndexOf(string name)

namespace AsposeCellsExamples
{
    using Aspose.Cells;
    using Aspose.Cells.Properties;
    using System;

    public class DocumentPropertyCollectionMethodIndexOfWithStringDemo
    {
        public static void Run()
        {
            // Create a new workbook
            Workbook workbook = new Workbook();
            
            // Get the built-in document properties collection
            DocumentPropertyCollection properties = workbook.Worksheets.BuiltInDocumentProperties;

            // For built-in properties, we can only set values of existing properties
            // To add custom properties, we would need to use CustomDocumentPropertyCollection
            // Here we'll just set some existing built-in properties for demonstration
            properties["Title"].Value = "Value1";
            properties["Subject"].Value = "Value2";
            properties["Author"].Value = "Value3";

            try
            {
                // Call the IndexOf method with string parameter
                int index = properties.IndexOf("Subject");
                
                // Display the result
                Console.WriteLine($"Index of 'Subject': {index}");
                
                // Show the property at found index
                if (index >= 0)
                {
                    DocumentProperty property = properties[index];
                    Console.WriteLine($"Property at index {index}: {property.Name} = {property.Value}");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error executing IndexOf method: {ex.Message}");
            }
            
            // Save the workbook
            workbook.Save("DocumentPropertyIndexOfDemo.xlsx");
        }
    }
}