dotConnect for PostgreSQL Documentation
Devart.Data.PostgreSql Namespace / PgSqlBlob Class / Seek Method
A byte offset relative to origin.
A value of System.IO.SeekOrigin type indicating the reference point used to obtain the new position.
Example

Seek Method (PgSqlBlob)
Sets the position on the current PgSqlBlob stream.
Syntax
'Declaration
 
Public Overrides Function Seek( _
   ByVal offset As Long, _
   ByVal origin As SeekOrigin _
) As Long
 

Parameters

offset
A byte offset relative to origin.
origin
A value of System.IO.SeekOrigin type indicating the reference point used to obtain the new position.

Return Value

The new position within the current stream.
Remarks
If offset is negative, the new position is required to precede the position specified by origin by the number of bytes specified by offset. If offset is zero (0), the new position is required to be the position specified by origin. If offset is positive, the new position is required to follow the position specified by origin by the number of bytes specified by offset.
Example
The first line of the example sets stream position to the very first element.
myBlob.Seek(0, SeekOrigin.Begin);
Console.WriteLine(myBlob.Position);
Console.WriteLine(myBlob.ReadByte());
myBlob.Seek(0, SeekOrigin.Begin)
Console.WriteLine(myBlob.Position)
Console.WriteLine(myBlob.ReadByte())
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also