OdbcDataReader.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 particular 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 row where the read operation is to start.
The buffer into which to copy data.
The index within the buffer where the write operation is to start.
The number of characters to read.
Return ValueType: System.Int64
The actual number of characters read.
If you pass a buffer that is a null value,returns the length of the field in characters.
Conversions are performed based on the underlying capabilities of the ODBC driver. If the conversion is not supported then the method call will fail.
No exception will be thrown if the value of bufferIndex is outside the array. No data will be read and the method will return 0.
Available since 1.1