public async Task DisplayAsync(StorageFile file)
{
FileGrid.Columns.Clear();
Table table = await ParquetUwp.LoadAsync(file);
int i = 0;
foreach (Field f in table.Schema.Fields)
{
FileGrid.Columns.Add(new DataGridTextColumn
{
Header = f.Name,
Width = DataGridLength.SizeToCells,
Binding = new Binding
{
Path = new PropertyPath("[" + i++ + "]")
}
});
}
FileGrid.ItemsSource = table.Select(r => new TableRowView(r)).ToList();
StatusText.Text = $"showing first {table.Count} records.";
}
private async Task LoadAndDisplay(StorageFile file)
{
HamburgerMenu.IsPaneOpen = false;
if (file == null)
{
return;
}
LoadingControl.IsLoading = true;
try
{
DataSet ds = await ParquetUwp.LoadAsync(file);
Display(ds);
}
finally
{
LoadingControl.IsLoading = false;
}
}