public FileSystemConnectionPath( 
   Uri path,
   FileSystemDatastoreType type
)

{
  await QueuedTask.Run(() =>
  {
    FileSystemConnectionPath fileConnection = new FileSystemConnectionPath(new Uri("path\\to\\folder\\containing\\shapefiles"),
        FileSystemDatastoreType.Shapefile);
    using (FileSystemDatastore shapefile = new FileSystemDatastore(fileConnection))
    {
      FeatureClass taxLotsFeatureClass = shapefile.OpenDataset<FeatureClass>("TaxLots");

      // Can use the .shp extension, but its not needed.
      FeatureClass manHolesFeatureClass = shapefile.OpenDataset<FeatureClass>("ManHoles.shp");

      Table taxDetailsTableWithoutExtension = shapefile.OpenDataset<Table>("TaxDetails");
      Table taxDetailsTable = shapefile.OpenDataset<Table>("TaxDetails.dbf");
    }
  });
}

{
  await QueuedTask.Run(() =>
  {
    FileSystemConnectionPath fileConnection = new FileSystemConnectionPath(new Uri("path\\to\\folder\\containing\\CAD"), FileSystemDatastoreType.Cad);
    using (FileSystemDatastore cadDatastore = new FileSystemDatastore(fileConnection))
    {
      //Note: Extension is required
      FeatureClass cadDataset = cadDatastore.OpenDataset<FeatureClass>("hatchplayboundaries.dwg");

      // Take note of the pattern for referencing a feature class. 
      FeatureClass cadfeatureClass = cadDatastore.OpenDataset<FeatureClass>("hatchplayboundaries.dwg:Polyline");

      int numRows = 0;
      using (RowCursor cursor = cadfeatureClass.Search())
      {
        while (cursor.MoveNext())
          numRows++;
      }
    }
  });
}

// Create a FileSystemConnectionPath using the folder path.
FileSystemConnectionPath connectionPath = new(new System.Uri(@"C:\Temp"), FileSystemDatastoreType.Raster);
// Create a new FileSystemDatastore using the FileSystemConnectionPath.
FileSystemDatastore dataStore = new(connectionPath);
// Open the raster dataset.
RasterDataset fileRasterDataset = dataStore.OpenDataset<RasterDataset>("Sample.tif");