Artikel
05/23/2011

InvalidDataSourceReference Class

Represents a state in which a data source reference is no longer valid.

Inheritance Hierarchy

System.Object
ReportService2005.DataSourceDefinitionOrReference
ReportService2005.InvalidDataSourceReference

Namespace: ReportService2005
Assembly: ReportService2005 (in ReportService2005.dll)

Syntax

'Declaration
<SerializableAttribute> _
Public Class InvalidDataSourceReference _
    Inherits DataSourceDefinitionOrReference
'Usage
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

The InvalidDataSourceReference type exposes the following members.

Constructors

	Name	Description
	InvalidDataSourceReference	Initializes a new instance of the InvalidDataSourceReference class.

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Methods

	Name	Description
	Equals	(Inherited from Object.)
	Finalize	(Inherited from Object.)
	GetHashCode	(Inherited from Object.)
	GetType	(Inherited from Object.)
	MemberwiseClone	(Inherited from Object.)
	ToString	(Inherited from Object.)

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Remarks

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...
    }
}

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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