Classe InvalidDataSourceReference

Represents a state in which a data source reference is no longer valid.

Gerarchia di ereditarietà

System. . :: . .Object
  ReportService2005. . :: . .DataSourceDefinitionOrReference
    ReportService2005..::..InvalidDataSourceReference

Spazio dei nomi  ReportService2005
Assembly:  ReportService2005 (in ReportService2005.dll)

Sintassi

'Dichiarazione
<SerializableAttribute> _
Public Class InvalidDataSourceReference _
    Inherits DataSourceDefinitionOrReference
'Utilizzo
Dim instance As InvalidDataSourceReference

[SerializableAttribute]
public class InvalidDataSourceReference : DataSourceDefinitionOrReference

[SerializableAttribute]
public ref class InvalidDataSourceReference : public DataSourceDefinitionOrReference

[<SerializableAttribute>]
type InvalidDataSourceReference =  
    class
        inherit DataSourceDefinitionOrReference
    end

public class InvalidDataSourceReference extends DataSourceDefinitionOrReference

Nel tipo InvalidDataSourceReference sono esposti i membri seguenti.

Costruttori

	Nome	Descrizione
	InvalidDataSourceReference	Initializes a new instance of the InvalidDataSourceReference class.

In alto

Metodi

	Nome	Descrizione
	Equals	Ereditato da Object.
	Finalize	Ereditato da Object.
	GetHashCode	Ereditato da Object.
	GetType	Ereditato da Object.
	MemberwiseClone	Ereditato da Object.
	ToString	Ereditato da Object.

In alto

Osservazioni

An InvalidDataSourceReference object is used with the Item property as output by GetItemDataSources method.

In most cases, an InvalidDataSourceReference object is returned when a shared data source has been deleted.

To evaluate whether a data source reference is valid, use the is keyword in C# (TypeOf/Is in Visual Basic) to determine the type of object returned by the Item property of the DataSource class, as shown in the following C# code:

DataSource[] dataSource;
dataSource = service.GetReportDataSources( "/MyReport" );

foreach ( DataSource ds in dataSource )
{
    if ( ds.Item is InvalidDataSourceReference )
    {
        // Code to handle a corrupt or missing data source reference goes here...
    }
}

Protezione dei thread

I membri static (Shared in Visual Basic) pubblici di questo tipo sono affidabili. Non è invece garantita la sicurezza dei membri dell'istanza.

Vedere anche

Riferimento

Spazio dei nomi ReportService2005