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DataCommand Members

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Provides the ability to build and execute data commands of various types against data sources, and to retrieve read-only results or a command status code.

The DataCommand type exposes the following members.

Constructors

 

Name

Description

Protected method

DataCommand

Overloaded. Initializes a new instance of the DataCommand class.

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Methods

 

Name

Description

Public method

CreateParameter

Creates a parameter object that can be passed into the DeriveSchema, DeriveSchema, Execute, or ExecuteWithoutResults methods on a DataCommand instance.

Public method

DeriveParameters

Overloaded. Derives the parameters that can be specified for a given command.

Public method

DeriveSchema

Overloaded. Derives the schema returned from a specified command. The schema indicates the layout of items and blocks in a data reader.

Public method

Equals

Determines whether the specified Object is equal to the current Object. (Inherited from Object.)

Public method

Execute

Overloaded. Executes a specified command and returns read-only results.

Public method

ExecuteWithoutResults

Overloaded. Executes a command but does not request results, instead returning an integer indicating the outcome of the call.

Protected method

Finalize

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)

Public method

GetHashCode

Serves as a hash function for a particular type. (Inherited from Object.)

Public method

GetType

Gets the type of the current instance. (Inherited from Object.)

Protected method

MemberwiseClone

Creates a shallow copy of the current Object. (Inherited from Object.)

Protected method

OnSiteChanged

Raises the SiteChanged event. (Inherited from DataSiteableObject<T>.)

Public method

Prepare

Overloaded. Prepares the specified command on the data source to be executed; the command can then be executed multiple times, with varying parameters.

Public method

ToString

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

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Properties

 

Name

Description

Public property

Site

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

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Events

 

Name

Description

Public event

SiteChanged

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

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See Also

Reference

DataCommand Class

Microsoft.VisualStudio.Data.Framework Namespace