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// Copyright 2009-2022 Josh Close
// This file is a part of CsvHelper and is dual licensed under MS-PL and Apache 2.0.
// See LICENSE.txt for details or visit http://www.opensource.org/licenses/ms-pl.html for MS-PL and http://opensource.org/licenses/Apache-2.0 for Apache 2.0.
// https://github.com/JoshClose/CsvHelper
using System;
namespace CsvHelper.Configuration.Attributes
{
/// <summary>
/// When reading, is used to get the field at
/// the given index. When writing, the fields
/// will be written in the order of the field
/// indexes.
/// </summary>
[AttributeUsage( AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter, AllowMultiple = false, Inherited = true )]
public class IndexAttribute : Attribute, IMemberMapper, IParameterMapper
{
/// <summary>
/// Gets the index.
/// </summary>
public int Index { get; private set; }
/// <summary>
/// Gets the index end.
/// </summary>
public int IndexEnd { get; private set; }
/// <summary>
/// When reading, is used to get the field at
/// the given index. When writing, the fields
/// will be written in the order of the field
/// indexes.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="indexEnd">The index end.</param>
public IndexAttribute( int index, int indexEnd = -1 )
{
Index = index;
IndexEnd = indexEnd;
}
/// <inheritdoc />
public void ApplyTo(MemberMap memberMap)
{
memberMap.Data.Index = Index;
memberMap.Data.IndexEnd = IndexEnd;
memberMap.Data.IsIndexSet = true;
}
/// <inheritdoc />
public void ApplyTo(ParameterMap parameterMap)
{
parameterMap.Data.Index = Index;
parameterMap.Data.IsIndexSet = true;
}
}
}
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