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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;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CsvHelper
{
/// <summary>
/// Function that validates a field.
/// </summary>
/// <param name="args">The args.</param>
/// <returns><c>true</c> if the field is valid, otherwise <c>false</c>.</returns>
public delegate bool Validate(ValidateArgs args);
/// <summary>
/// Function that gets the exception message when validation fails.
/// </summary>
/// <param name="args">The args.</param>
/// <returns>The exception message.</returns>
public delegate string ValidateMessage(ValidateArgs args);
/// <summary>
/// Validate args.
/// </summary>
public readonly struct ValidateArgs
{
/// <summary>
/// The field.
/// </summary>
public readonly string Field;
/// <summary>
/// The row.
/// </summary>
public readonly IReaderRow Row;
/// <summary>
/// Creates a new instance of ValidateArgs.
/// </summary>
/// <param name="field">The field.</param>
/// <param name="row">The row.</param>
public ValidateArgs(string field, IReaderRow row)
{
Field = field;
Row = row;
}
}
}
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