SqlDataReader.GetChars Method (Int32, Int64, Char, Int32, Int32)
Reads a stream of characters from the specified column offset into the buffer as an array starting at the given buffer offset.
Assembly: System.Data (in System.Data.dll)
public override long GetChars( int i, long dataIndex, char buffer, int bufferIndex, int length )
The zero-based column ordinal.
The index within the field from which to begin the read operation.
The buffer into which to read the stream of bytes.
The index within the buffer where the write operation is to start.
The maximum length to copy into the buffer.
Return ValueType: System.Int64
The actual number of characters read.
The actual number of characters read can be less than the requested length, if the end of the field is reached. If you pass a buffer that is null,returns the length of the entire field in characters, not the remaining size based on the buffer offset parameter.
No conversions are performed; therefore. the data retrieved must already be a character array.
Themethod returns 0 when dataIndex is negative.
Available since 1.1