DataSourceAttribute Class

Contains information that describes a data source for a Web performance test. This class cannot be inherited.

Inheritance Hierarchy

System.Object
  System.Attribute
    Microsoft.VisualStudio.TestTools.WebTesting.DataSourceAttribute

Namespace:  Microsoft.VisualStudio.TestTools.WebTesting
Assembly:  Microsoft.VisualStudio.QualityTools.WebTestFramework (in Microsoft.VisualStudio.QualityTools.WebTestFramework.dll)

Syntax

'Declaration
<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple := True)> _
Public NotInheritable Class DataSourceAttribute _
    Inherits Attribute

[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = true)]
public sealed class DataSourceAttribute : Attribute

[AttributeUsageAttribute(AttributeTargets::Class, AllowMultiple = true)]
public ref class DataSourceAttribute sealed : public Attribute

[<Sealed>]
[<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = true)>]
type DataSourceAttribute =  
    class
        inherit Attribute
    end

public final class DataSourceAttribute extends Attribute

The DataSourceAttribute type exposes the following members.

Constructors

	Name	Description
	DataSourceAttribute(String, String, String)	Initializes an instance of the DataSourceAttribute class using a single table.
	DataSourceAttribute(String, String, array<String[])	Initializes an instance of the DataSourceAttribute class.
	DataSourceAttribute(String, String, DataBindingAccessMethod, String)	Initializes an instance of the DataSourceAttribute class using a single table and the defined access method.
	DataSourceAttribute(String, String, DataBindingAccessMethod, array<String[])	Initializes an instance of the DataSourceAttribute class using an array of table names.
	DataSourceAttribute(String, String, String, String)	Initializes an instance of the DataSourceAttribute class using a single table and the name of the data source provider.
	DataSourceAttribute(String, String, String, array<String[])	Initializes an instance of the DataSourceAttribute class using an array of table names and the name of the data source provider.
	DataSourceAttribute(String, String, String, DataBindingAccessMethod, String)	Initializes an instance of the DataSourceAttribute class using a single table, the defined access method, and the name of the data source provider.
	DataSourceAttribute(String, String, String, DataBindingAccessMethod, array<String[])	Initializes an instance of the DataSourceAttribute class using an array of table names, the defined access method, and the name of the data source provider.
	DataSourceAttribute(String, String, String, DataBindingAccessMethod, DataBindingSelectColumns, String)	Initializes an instance of the DataSourceAttribute class using an array of table names, the defined access method, name of the data source, name of the provider, connection string, and the column filters.
	DataSourceAttribute(String, String, String, DataBindingAccessMethod, DataBindingSelectColumns, array<String[])	Initializes an instance of the DataSourceAttribute class using an array of table names, the defined access method, name of the data source, name of the provider, connection string, and the column filters.

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Properties

	Name	Description
	AccessMethod	Gets the method by which data will be accessed in the data source.
	ConnectionString	Gets the connection for the data source.
	DataSourceName	Gets the name of the data source.
	DataSourceProviderName	Gets the name of the data source provider.
	SelectColumns	Gets the column filters used for selecting the data.
	TableNames	Gets the table names in the data source that contains data to be accessed.
	TypeId	When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)

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Methods

	Name	Description
	Equals	Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Returns the hash code for this instance. (Inherited from Attribute.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsDefaultAttribute	When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
	Match	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Explicit Interface Implementations

	Name	Description
	_Attribute.GetIDsOfNames	Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
	_Attribute.GetTypeInfo	Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
	_Attribute.GetTypeInfoCount	Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
	_Attribute.Invoke	Provides access to properties and methods exposed by an object. (Inherited from Attribute.)

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Remarks

The data source cannot be changed based on input during a test because all the data is loaded and cached before the first test runs. To change data sources at run-time, you can implement your own data binding. Use ADO.NET or a StreamReader when you read from a file.

This attribute can be applied to classes. This attribute can be applied multiple times. For more information about how to use attributes, see Extending Metadata Using Attributes.

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.

See Also

Reference

Microsoft.VisualStudio.TestTools.WebTesting Namespace

Other Resources

Connecting to a Data Source (ADO.NET)

About Data Binding

How to: Add Data Binding to a Web Request