DataReaderExtensions.GetBytes Method
Definition
Important
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Reads a specified number of bytes from the specified column starting at a specified index and writes them to a buffer starting at a specified position in the buffer.
public:
[System::Runtime::CompilerServices::Extension]
static long GetBytes(System::Data::Common::DbDataReader ^ reader, System::String ^ name, long dataOffset, cli::array <System::Byte> ^ buffer, int bufferOffset, int length);public static long GetBytes (this System.Data.Common.DbDataReader reader, string name, long dataOffset, byte[] buffer, int bufferOffset, int length);static member GetBytes : System.Data.Common.DbDataReader * string * int64 * byte[] * int * int -> int64<Extension()>
Public Function GetBytes (reader As DbDataReader, name As String, dataOffset As Long, buffer As Byte(), bufferOffset As Integer, length As Integer) As LongParameters
- reader
- DbDataReader
The data reader to get the column value from.
- name
- String
The name of the column.
- dataOffset
- Int64
The index within the row from which to begin the read operation.
- buffer
- Byte[]
The buffer into which to copy the data.
- bufferOffset
- Int32
The index with the buffer to which the data will be copied.
- length
- Int32
The maximum number of characters to read.
Returns
The actual number of bytes read.
Exceptions
The name specified is not a valid column name.
The specified cast is not valid.
