/// <summary>
/// Initialize a new instance of DirectorySearch class.
/// </summary>
/// <param name="folder">The start search directory.</param>
/// <param name="pattern">The search pattern.</param>
/// <param name="tokenSource">Instance of CancellationTokenSource for search process cancellation possibility.</param>
/// <param name="handlerOption">Specifies where DirectoriesFound event handlers are executed.</param>
/// <param name="suppressOperationCanceledException">Determines whether necessary suppress OperationCanceledException if it possible.</param>
/// <exception cref="ArgumentException"></exception>
/// <exception cref="ArgumentNullException"></exception>
public DirectorySearcher(string folder, string pattern, CancellationTokenSource tokenSource, ExecuteHandlers handlerOption, bool suppressOperationCanceledException)
{
CheckFolder(folder);
CheckPattern(pattern);
CheckTokenSource(tokenSource);
searcher = new DirectoryCancellationPatternSearcher(folder, pattern, tokenSource.Token, handlerOption, suppressOperationCanceledException);
this.tokenSource = tokenSource;
}
/// <summary>
/// Initialize a new instance of DirectorySearch class.
/// </summary>
/// <param name="folder">The start search directory.</param>
/// <param name="isValid">The delegate that determines algorithm of directory selection.</param>
/// <param name="tokenSource">Instance of CancellationTokenSource for search process cancellation possibility.</param>
/// <param name="handlerOption">Specifies where DirectoriesFound event handlers are executed.</param>
/// <param name="suppressOperationCanceledException">Determines whether necessary suppress OperationCanceledException if it possible.</param>
/// <exception cref="ArgumentException"></exception>
/// <exception cref="ArgumentNullException"></exception>
public DirectorySearcher(string folder, Func <DirectoryInfo, bool> isValid, CancellationTokenSource tokenSource, ExecuteHandlers handlerOption, bool suppressOperationCanceledException)
{
CheckFolder(folder);
CheckDelegate(isValid);
CheckTokenSource(tokenSource);
searcher = new DirectoryCancellationDelegateSearcher(folder, isValid, tokenSource.Token, handlerOption, suppressOperationCanceledException);
this.tokenSource = tokenSource;
}