DataCommandType Class

2011-02-28

Represents a set of predefined data command types.

Inheritance Hierarchy

System.Object
Microsoft.VisualStudio.Data.DataCommandType

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

Syntax

声明
Public NotInheritable Class DataCommandType

public sealed class DataCommandType

public ref class DataCommandType sealed

[<Sealed>]
type DataCommandType =  class end

public final class DataCommandType

The DataCommandType type exposes the following members.

Methods

	Name	Description
	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.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Fields

	Name	Description
	Prepared	Indicates a prepared command type, where the command text is an identifier previously returned by a call to the Prepare method.
	Procedure	Indicates a procedure command type, where the command text is the name of the procedure to be executed.
	ScalarFunction	Indicates a scalar function command type, where the command text is the identifier of a function to be executed that returns a scalar value.
	Table	Indicates a table command type, where the command text is the identifier of a table from which all results should be retrieved.
	TabularFunction	Indicates a tabular function command type, where the command text is the identifier of a function to execute that returns a result set.
	Text	Indicates a text command type, where the command text should be native code understood by the DDEX provider, for example, SQL.

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Remarks

The set of command types defined by this class are not intended to be a complete list but rather a simple means for identifying base types likely to be supported by many DDEX providers. For future additions, the numbers 1-99 are reserved for values in this enumeration. Numbers 100+ can be used for provider-specific command types.

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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