DSRefBuilder Class

Artikel
02/28/2011

Allows you to create a Data Source Reference (DSRef) object that identifies one or more data objects.

Inheritance Hierarchy

System.Object
Microsoft.VisualStudio.Data.Framework.DataSiteableObject<IVsDataConnection>
Microsoft.VisualStudio.Data.Framework.DSRefBuilder

Namespace: Microsoft.VisualStudio.Data.Framework
Assembly: Microsoft.VisualStudio.Data.Framework (in Microsoft.VisualStudio.Data.Framework.dll)

Syntax

'Declaration
Public Class DSRefBuilder _
    Inherits DataSiteableObject(Of IVsDataConnection) _
    Implements IDSRefBuilder, IVsDataSupportObject(Of IDSRefBuilder)

public class DSRefBuilder : DataSiteableObject<IVsDataConnection>, 
    IDSRefBuilder, IVsDataSupportObject<IDSRefBuilder>

public ref class DSRefBuilder : public DataSiteableObject<IVsDataConnection^>, 
    IDSRefBuilder, IVsDataSupportObject<IDSRefBuilder^>

type DSRefBuilder =  
    class
        inherit DataSiteableObject<IVsDataConnection>
        interface IDSRefBuilder
        interface IVsDataSupportObject<IDSRefBuilder>
    end

public class DSRefBuilder extends DataSiteableObject<IVsDataConnection> implements IDSRefBuilder, IVsDataSupportObject<IDSRefBuilder>

The DSRefBuilder type exposes the following members.

Constructors

	Name	Description
	DSRefBuilder()	Initializes a new instance of the DSRefBuilder class.
	DSRefBuilder(IVsDataConnection)	Initializes a new instance of the DSRefBuilder class with the data connection.

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Properties

	Name	Description
	Site	Gets or sets the object site. (Inherited from DataSiteableObject<T>.)

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Methods

	Name	Description
	AppendToDSRef(Object, String, array<Object[])	Appends information about a data object with the specified type and identifier to a specified existing DSRef object.
	AppendToDSRef(Object, String, array<Object[], array<Object[])	Appends information about a data object with the specified type and identifier to a specified existing DSRef object.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	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	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	OnSiteChanged	Raises the SiteChanged event. (Inherited from DataSiteableObject<T>.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Events

	Name	Description
	SiteChanged	Occurs when the Site property is changed. (Inherited from DataSiteableObject<T>.)

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Explicit Interface Implementations

	Name	Description
	IVsDataSupportObject<IDSRefBuilder>.Invoke	Invokes the method specified by the method name and passes it the specified arguments.

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Remarks

This particular implementation of the IDSRefBuilder interface uses information provided in a data provider's data object support XML file to append information to an existing DSRef object to enable drag-and-drop operations.

When specifying the IDSRefBuilder service with this implementation, a data provider should attach certain parameters to indicate which nodes should be created where, and which identifier parts should be used as values for the nodes. The top-level parameters identify nodes that appear directly underneath the root DSRef node. The format of sub-parameters under a given top-level parameter is as follows:

Parameter 1: The name of the node.
Parameter 2: The owner of the node.
Parameter 3: The node type (Table, Field, Trigger, ViewTrigger, ViewIndex, StoredProcedure, View, Synonym, Function, Index, or UserDefinedType).
Parameter 4: The extended type of the node, as a GUID.
Parameter 5: A collection of custom properties specified as child parameters, where the value is the GUID of the custom property and an embedded parameter contains the value.
Parameter 6: A collection of child nodes specified as child parameters.

When this class does not adequately service your data provider's requirements, you can inherit from it and specify your own class, although in most cases that will not be necessary.

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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