public static DataFrame<long, string> ReadDataFrame(
	this IDataReader reader,
	IEnumerable<string> columnKeys,
	int capacity = 1000
)

<ExtensionAttribute>
Public Shared Function ReadDataFrame ( 
	reader As IDataReader,
	columnKeys As IEnumerable(Of String),
	Optional capacity As Integer = 1000
) As DataFrame(Of Long, String)

public:
[ExtensionAttribute]
static DataFrame<long long, String^>^ ReadDataFrame(
	IDataReader^ reader, 
	IEnumerable<String^>^ columnKeys, 
	int capacity = 1000
)

[<ExtensionAttribute>]
static member ReadDataFrame : 
        reader : IDataReader * 
        columnKeys : IEnumerable<string> * 
        ?capacity : int 
(* Defaults:
        let _capacity = defaultArg capacity 1000
*)
-> DataFrame<int64, string>