ReadAsync(byte[], int, int)

The ReadAsync method returns a Task-based asynchronous version of OracleBlob.Read(), which reads a specified number of bytes from the ODP.NET LOB instance and populates the buffer.

Declaration

// C#
public Task<int> ReadAsync(byte[] buffer, int offset, int count);

Parameters

buffer

The byte array buffer to be populated.
offset

The starting offset (in bytes) at which the buffer is populated.
count

The number of bytes to read.

Return Value

Task<Int> object representing the asynchronous operation immediately without blocking the calling thread for the whole duration of the query execution.

Exceptions

ObjectDisposedException - The object is already disposed.
InvalidOperationException - The OracleConnection is not open or has been closed during the lifetime of the object
ArgumentOutOfRangeException - This exception is thrown if any of the following conditions exist:
- The offset or the count parameter is less than 0.
- The offset is greater than or equal to the buffer.Length.
- The offset and the count together are greater than the buffer.Length.

Remark

This will call into the ReadAsync implementation with argument cancellationToken passed as CancellationToken.None.