DataReader.GetBytes Method

Retrieves a specified number of bytes of raw binary data.

Namespace: Microsoft.VisualStudio.Data
Assembly: Microsoft.VisualStudio.Data (in Microsoft.VisualStudio.Data.dll)


Public MustOverride Function GetBytes ( _
    index As Integer, _
    buffer As Byte(), _
    bufferIndex As Integer, _
    length As Integer _
) As Integer

Dim instance As DataReader
Dim index As Integer
Dim buffer As Byte()
Dim bufferIndex As Integer
Dim length As Integer
Dim returnValue As Integer

returnValue = instance.GetBytes(index, _
    buffer, bufferIndex, length)
public abstract int GetBytes(
    int index,
    byte[] buffer,
    int bufferIndex,
    int length
virtual int GetBytes(
    int index, 
    array<unsigned char>^ buffer, 
    int bufferIndex, 
    int length
) abstract
public abstract function GetBytes(
    index : int, 
    buffer : byte[], 
    bufferIndex : int, 
    length : int
) : int


  • index
    Type: System.Int32

    Index into the current block of data for the item to retrieve.

  • buffer
    Type: array<System.Byte[]

    An array into which specified data, as byte array, should be placed. If nulla null reference (Nothing in Visual Basic), this method returns the size required of the array in order to fit all of the specified data.

  • bufferIndex
    Type: System.Int32

    Index of starting point in the byte array specified with the buffer parameter.

  • length
    Type: System.Int32

    The number of bytes to be read into the byte array specified with the buffer parameter.

Return Value

Type: System.Int32

Returns an integer value indicating the number of bytes read into the buffer.


Exception Condition

The index, bufferIndex, and/or length parameters are invalid.


When data is presented by the DDEX provider in the form of raw bytes, call this method to read only a specified number of bytes into an existing client-side buffer. This performs better than simply retrieving the whole value, which causes all the data to be read and allocated in memory.


See Also


DataReader Class

DataReader Members

Microsoft.VisualStudio.Data Namespace