/// <summary>
/// Routine to open a file
/// </summary>
/// <param name="entry"></param>
/// <param name="filename"></param>
/// <returns></returns>
private bool OpenFile(IBioDataProvider entry, string filename)
{
IBioDataLoader dataLoader = entry.Create(filename);
if (dataLoader != null)
{
var dvm = new OpenBioDataViewModel(filename, entry.SupportedTypes, dataLoader, entry);
dvm.Load();
dvm.CloseRequest += OnDataSourceClosing;
OpenDataSources.Add(dvm);
return(true);
}
return(false);
}
/// <summary>
/// Constructor for the bio file
/// </summary>
/// <param name="loadData"></param>
/// <param name="format"></param>
/// <param name="loader"></param>
/// <param name="info"></param>
public OpenBioDataViewModel(string loadData, BioFormatType format, IBioDataLoader loader, IBioDataProvider info)
{
if (format == BioFormatType.Unknown)
{
throw new ArgumentException("BioFormatType cannot be unknown.");
}
if (loader == null)
{
throw new ArgumentNullException("loader");
}
RegisterWithMessageMediator();
DefaultCommand = new DelegatingCommand(OnOpenDefaultView, () => !IsLoading);
CloseCommand = new DelegatingCommand(OnClose, () => IsLoaded || !IsLoading);
ChangePropertiesCommand = new DelegatingCommand(OnChangeProperties, () => IsLoaded);
Children = new MTObservableCollection <OpenBioViewModel>();
_bioData = new BioDataFile(loadData, format, loader, info.Key);
Header = string.Format("{0} [{1}]", loader.InitializationData, info.Description);
Image = info.ImageUrl;
}
/// <summary>
/// This prompts the user for a non-file based data load.
/// </summary>
/// <param name="dataProvider"></param>
private void OpenDbDataSource(IBioDataProvider dataProvider)
{
Debug.Assert(string.IsNullOrEmpty(dataProvider.FileFilter));
OpenFile(dataProvider, null);
}
