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(SqlConnection myConnection) {
  SqlCommand cmd = new SqlCommand("SELECT * FROM Test.AllTypes");
  cmd.Connection = myConnection;
  myConnection.Open();
  try {
    SqlDataReader 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 SqlConnection)
  Dim cmd As New SqlCommand("SELECT * FROM Test.AllTypes")
  cmd.Connection = myConnection
  myConnection.Open()
  Try
    Dim reader As SqlDataReader = 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

SqlDataReader Class
SqlDataReader Members
Overload List

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