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public class LoadFileRequest
{
public event EventHandler<LoadFileRequestCompletedEventArgs> LoadFileRequestCompleted;
private readonly string _urlFile;
public LoadFileRequest(string urlFile)
{
if (urlFile == null)
throw new ArgumentNullException("urlFile");
_urlFile = urlFile;
}
/// <summary>
/// Execute la requête
/// </summary>
public void Execute()
{
WebClient fileLoader = new WebClient();
fileLoader.OpenReadCompleted += FileLoaderOpenReadCompleted;
fileLoader.OpenReadAsync(new Uri(_urlFile, UriKind.Absolute));
}
void FileLoaderOpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
try
{
OnLoadFileRequestCompleted(new LoadFileRequestCompletedEventArgs(e.Result, e.Error, e.Cancelled, e.UserState));
}
catch (Exception ex)
{
OnLoadFileRequestCompleted(new LoadFileRequestCompletedEventArgs(null, ex, e.Cancelled, e.UserState));
}
} |
