GetGuid(Int32) Method

In This Topic

Gets the value of the specified column as a globally-unique identifier (GUID).

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Overrides Function GetGuid( _
   ByVal i As Integer _
) As Guid

public override Guid GetGuid( 
   int i
)

Parameters

i

Return Value

The value of the specified column.

Example

csharp

static void GetMyGuid(MySqlConnection myConnection) {
  MySqlCommand cmd = new MySqlCommand("SELECT * FROM Test.AllTypes");
  cmd.Connection = myConnection;
  myConnection.Open();
  try {
    MySqlDataReader reader = cmd.ExecuteReader();
    reader.Read();
    Guid recievedGuid = reader.GetGuid(reader.GetOrdinal("GuidCol"));
    reader.Close();
  }
  finally {
    myConnection.Close();
  }
}

Visual Basic

Shared Sub GetMyGuid(ByVal myConnection As MySqlConnection)
  Dim cmd As New MySqlCommand("SELECT * FROM Test.AllTypes")
  cmd.Connection = myConnection
  myConnection.Open()
  Try
    Dim reader As MySqlDataReader = cmd.ExecuteReader
    reader.Read()
    Dim recievedGuid As Guid = reader.GetGuid(reader.GetOrdinal("GuidCol"))
    reader.Close()
  Finally
    myConnection.Close()
  End Try
End Sub

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

Reference

MySqlDataReader Class
MySqlDataReader Members
Overload List

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