C# iList（開発者向けの動作方法）

// Accessing an element by index
object value = myIList[1];
Console.WriteLine($"Element at index 1: {value}");
// Modifying an element by index
myIList[1] = 20;
Console.WriteLine($"Modified element at index 1: {myIList[1]}");

' Accessing an element by index
Dim value As Object = myIList(1)
Console.WriteLine($"Element at index 1: {value}")
' Modifying an element by index
myIList(1) = 20
Console.WriteLine($"Modified element at index 1: {myIList(1)}")

public class CustomCollection : IList
{
    private ArrayList _innerList = new ArrayList();
    public object this[int index] { get => _innerList[index]; set => _innerList[index] = value; }
    public bool IsFixedSize => _innerList.IsFixedSize;
    public bool IsReadOnly => _innerList.IsReadOnly;
    public int Count => _innerList.Count;
    public bool IsSynchronized => _innerList.IsSynchronized;
    public object SyncRoot => _innerList.SyncRoot;
// int add
    public int Add(object value)
    {
        return _innerList.Add(value);
    }
    public void Clear()
    {
        _innerList.Clear();
    }
    public bool Contains(object value)
    {
        return _innerList.Contains(value);
    }
    public int IndexOf(object value)
    {
        return _innerList.IndexOf(value);
    }
    public void Insert(int index, object value)
    {
        _innerList.Insert(index, value);
    }
    public void Remove(object value)
    {
        _innerList.Remove(value);
    }
    public void RemoveAt(int index)
    {
        _innerList.RemoveAt(index);
    }
    public void CopyTo(Array array, int index)
    {
        _innerList.CopyTo(array, index);
    }
    public IEnumerator GetEnumerator()
    {
        return _innerList.GetEnumerator();
    }
}

Public Class CustomCollection
	Implements IList

	Private _innerList As New ArrayList()
	Default Public Property Item(ByVal index As Integer) As Object Implements IList.Item
		Get
			Return _innerList(index)
		End Get
		Set(ByVal value As Object)
			_innerList(index) = value
		End Set
	End Property
	Public ReadOnly Property IsFixedSize() As Boolean Implements IList.IsFixedSize
		Get
			Return _innerList.IsFixedSize
		End Get
	End Property
	Public ReadOnly Property IsReadOnly() As Boolean Implements IList.IsReadOnly
		Get
			Return _innerList.IsReadOnly
		End Get
	End Property
	Public ReadOnly Property Count() As Integer Implements System.Collections.ICollection.Count
		Get
			Return _innerList.Count
		End Get
	End Property
	Public ReadOnly Property IsSynchronized() As Boolean Implements System.Collections.ICollection.IsSynchronized
		Get
			Return _innerList.IsSynchronized
		End Get
	End Property
	Public ReadOnly Property SyncRoot() As Object Implements System.Collections.ICollection.SyncRoot
		Get
			Return _innerList.SyncRoot
		End Get
	End Property
' int add
	Public Function Add(ByVal value As Object) As Integer Implements IList.Add
		Return _innerList.Add(value)
	End Function
	Public Sub Clear() Implements IList.Clear
		_innerList.Clear()
	End Sub
	Public Function Contains(ByVal value As Object) As Boolean Implements IList.Contains
		Return _innerList.Contains(value)
	End Function
	Public Function IndexOf(ByVal value As Object) As Integer Implements IList.IndexOf
		Return _innerList.IndexOf(value)
	End Function
	Public Sub Insert(ByVal index As Integer, ByVal value As Object) Implements IList.Insert
		_innerList.Insert(index, value)
	End Sub
	Public Sub Remove(ByVal value As Object) Implements IList.Remove
		_innerList.Remove(value)
	End Sub
	Public Sub RemoveAt(ByVal index As Integer) Implements IList.RemoveAt
		_innerList.RemoveAt(index)
	End Sub
	Public Sub CopyTo(ByVal array As Array, ByVal index As Integer) Implements System.Collections.ICollection.CopyTo
		_innerList.CopyTo(array, index)
	End Sub
	Public Function GetEnumerator() As IEnumerator Implements System.Collections.IEnumerable.GetEnumerator
		Return _innerList.GetEnumerator()
	End Function
End Class

// Check if the IList contains a specific object
bool contains = myIList.Contains(10); // Assuming 10 was added previously
Console.WriteLine($"Contains 10: {contains}");
// Find the index of a specific object
int index = myIList.IndexOf(10);
Console.WriteLine($"Index of 10: {index}");

' Check if the IList contains a specific object
Dim contains As Boolean = myIList.Contains(10) ' Assuming 10 was added previously
Console.WriteLine($"Contains 10: {contains}")
' Find the index of a specific object
Dim index As Integer = myIList.IndexOf(10)
Console.WriteLine($"Index of 10: {index}")

using IronPdf;
using System.Collections.Generic;
public class PDFGenerator
{
    public static void GeneratePDFFromList(IList<string> dataList)
    {
        // Initialize the HtmlToPdf renderer
        var renderer = new ChromePdfRenderer();
        // Start building HTML content from the dataList
        var htmlContent = "<h1>My Data List</h1><ul>";
        foreach (var item in dataList)
        {
            htmlContent += $"<li>{item}</li>";
        }
        htmlContent += "</ul>";
        // Convert HTML string to PDF
        var pdfDocument = renderer.RenderHtmlAsPdf(htmlContent);
        // Save the PDF to a file
        pdfDocument.SaveAs("DataList.pdf");
    }
}
// Example usage
class Program
{
    static void Main(string[] args)
    {
        License.LicenseKey = "License-Key";
        IList<string> myDataList = new List<string> { "Apple", "Banana", "Cherry" };
        PDFGenerator.GeneratePDFFromList(myDataList);
    }
}

Imports IronPdf
Imports System.Collections.Generic
Public Class PDFGenerator
	Public Shared Sub GeneratePDFFromList(ByVal dataList As IList(Of String))
		' Initialize the HtmlToPdf renderer
		Dim renderer = New ChromePdfRenderer()
		' Start building HTML content from the dataList
		Dim htmlContent = "<h1>My Data List</h1><ul>"
		For Each item In dataList
			htmlContent &= $"<li>{item}</li>"
		Next item
		htmlContent &= "</ul>"
		' Convert HTML string to PDF
		Dim pdfDocument = renderer.RenderHtmlAsPdf(htmlContent)
		' Save the PDF to a file
		pdfDocument.SaveAs("DataList.pdf")
	End Sub
End Class
' Example usage
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		License.LicenseKey = "License-Key"
		Dim myDataList As IList(Of String) = New List(Of String) From {"Apple", "Banana", "Cherry"}
		PDFGenerator.GeneratePDFFromList(myDataList)
	End Sub
End Class