public void Dispose()
{
if (_linesProvider != null)
{
_linesProvider.Dispose();
_linesProvider = null;
}
}
/// <summary>
/// Opens the file with a specified maxium number of rows with a default value that insures
/// the max this code can handle isn't reached.
/// </summary>
/// <param name="filename"></param>
/// <param name="maxRows"></param>
public void OpenFile(string filename, int maxRows = Int32.MaxValue)
{
ColumnSelectorsVisible = false;
if (_linesProvider != null)
{
_linesProvider.Dispose();
_linesProvider = null;
}
// Select low level lines provider as being a binary lines provider, or a text line provider
BigFileLine lineConverter = _binaryMode ? (BigFileLine)(new BigBinFileLine()) : (BigFileLine)(new BigTextFileLine());
OpenProvider(new FileLinesProvider(filename, maxRows, lineConverter));
}
public void OpenProvider(LinesProvider linesProvider)
{
_linesProvider = linesProvider;
// Handles when the number of columns we need to display the data changes
_linesProvider.MaxColumnsChanged += (s, e) => ColumnCount = e.MaxColumns;
ColumnCount = 0;
var fileLines = new VirtualizingCollectionDynamicAsync <BigFileLine>(_linesProvider, 100 /*page size*/, 60000 /*timeout*/, 1000 /* loadCountInterval*/);
FileLines = fileLines;
fileLines.CountChanged += (s, e) =>
{
CountChanged?.Invoke(this, e);
OnPropertyChanged("RowCount");
};
}