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DbDataReader.GetDouble Method

Gets the value of the specified column as a double-precision floating point number.

Namespace:  System.Data.Common
Assembly:  System.Data (in System.Data.dll)

Public MustOverride Function GetDouble ( _
	ordinal As Integer _
) As Double
Dim instance As DbDataReader 
Dim ordinal As Integer 
Dim returnValue As Double 

returnValue = instance.GetDouble(ordinal)


Type: System.Int32

The zero-based column ordinal.

Return Value

Type: System.Double
The value of the specified column.




The specified cast is not valid.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0