SqlCeDataReader.GetGuid Method

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

Namespace: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in system.data.sqlserverce.dll)

Syntax

'Declaration
Public Overrides Function GetGuid ( _
    ordinal As Integer _
) As Guid
'Usage
Dim instance As SqlCeDataReader
Dim ordinal As Integer
Dim returnValue As Guid

returnValue = instance.GetGuid(ordinal)
public override Guid GetGuid (
    int ordinal
)
public:
virtual Guid GetGuid (
    int ordinal
) override
public Guid GetGuid (
    int ordinal
)
public override function GetGuid (
    ordinal : int
) : Guid

Parameters

  • ordinal
    The zero-based column ordinal.

Return Value

The value of the specified column.

Exceptions

Exception type Condition

InvalidCastException

The specified cast is not valid.

SqlNullValueException

The value is a null reference (Nothing in Visual Basic).

InvalidOperationException

The operation is not valid. The SqlCeDataReader may be positioned after the last row in the result set.

Remarks

No conversions are performed; therefore, the data retrieved must already be a globally unique identifier.

Call IsDBNull to check for a null reference (Nothing in Visual Basic) values before calling this method.

.NET Framework Security

  • Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see .

Platforms

Windows CE, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows XP Professional x64 Edition, Windows XP SP2

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

Version Information

.NET Compact Framework

Supported in: 2.0, 1.0

See Also

Reference

SqlCeDataReader Class
SqlCeDataReader Members
System.Data.SqlServerCe Namespace