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DirectoryVirtualListView.cs
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DirectoryVirtualListView.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
namespace System.DirectoryServices
{
public class DirectoryVirtualListView
{
private int _beforeCount;
private int _afterCount;
private int _offset;
private string _target = "";
private int _approximateTotal;
private int _targetPercentage;
public DirectoryVirtualListView()
{
}
public DirectoryVirtualListView(int afterCount)
{
AfterCount = afterCount;
}
public DirectoryVirtualListView(int beforeCount, int afterCount, int offset)
{
BeforeCount = beforeCount;
AfterCount = afterCount;
Offset = offset;
}
public DirectoryVirtualListView(int beforeCount, int afterCount, string? target)
{
BeforeCount = beforeCount;
AfterCount = afterCount;
Target = target;
}
public DirectoryVirtualListView(int beforeCount, int afterCount, int offset, DirectoryVirtualListViewContext? context)
{
BeforeCount = beforeCount;
AfterCount = afterCount;
Offset = offset;
DirectoryVirtualListViewContext = context;
}
public DirectoryVirtualListView(int beforeCount, int afterCount, string? target, DirectoryVirtualListViewContext? context)
{
BeforeCount = beforeCount;
AfterCount = afterCount;
Target = target;
DirectoryVirtualListViewContext = context;
}
[DefaultValue(0)]
public int BeforeCount
{
get => _beforeCount;
set
{
if (value < 0)
{
throw new ArgumentException(SR.DSBadBeforeCount);
}
_beforeCount = value;
}
}
[DefaultValue(0)]
public int AfterCount
{
get => _afterCount;
set
{
if (value < 0)
{
throw new ArgumentException(SR.DSBadAfterCount);
}
_afterCount = value;
}
}
[DefaultValue(0)]
public int Offset
{
get => _offset;
set
{
if (value < 0)
{
throw new ArgumentException(SR.DSBadOffset);
}
_offset = value;
if (_approximateTotal != 0)
{
_targetPercentage = (int)((double)_offset / _approximateTotal * 100);
}
else
{
_targetPercentage = 0;
}
}
}
[DefaultValue(0)]
public int TargetPercentage
{
get => _targetPercentage;
set
{
if (value > 100 || value < 0)
{
throw new ArgumentException(SR.DSBadTargetPercentage);
}
_targetPercentage = value;
_offset = _approximateTotal * _targetPercentage / 100;
}
}
[DefaultValue("")]
[AllowNull]
public string Target
{
get => _target;
set => _target = value ?? string.Empty;
}
[DefaultValue(0)]
public int ApproximateTotal
{
get => _approximateTotal;
set
{
if (value < 0)
{
throw new ArgumentException(SR.DSBadApproximateTotal);
}
_approximateTotal = value;
}
}
[DefaultValue(null)]
public DirectoryVirtualListViewContext? DirectoryVirtualListViewContext { get; set; }
}
}