Clase ColumnCollection

The ColumnCollection class represents a collection of Column objects that represent all the columns defined on a table.

Jerarquía de herencia

System. . :: . .Object
  Microsoft.SqlServer.Management.Smo. . :: . .AbstractCollectionBase
    Microsoft.SqlServer.Management.Smo. . :: . .SmoCollectionBase
      Microsoft.SqlServer.Management.Smo. . :: . .ArrayListCollectionBase
        Microsoft.SqlServer.Management.Smo. . :: . .ParameterCollectionBase
          Microsoft.SqlServer.Management.Smo..::..ColumnCollection

Espacio de nombres:  Microsoft.SqlServer.Management.Smo
Ensamblado:  Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)

Sintaxis

'Declaración
Public NotInheritable Class ColumnCollection _
    Inherits ParameterCollectionBase
'Uso
Dim instance As ColumnCollection

public sealed class ColumnCollection : ParameterCollectionBase

public ref class ColumnCollection sealed : public ParameterCollectionBase

[<SealedAttribute>]
type ColumnCollection =  
    class
        inherit ParameterCollectionBase
    end

public final class ColumnCollection extends ParameterCollectionBase

El tipo ColumnCollection expone los siguientes miembros.

Propiedades

	Nombre	Descripción
	Count	Gets the number of objects in the referenced collection. (Se hereda de SmoCollectionBase.)
	IsSynchronized	Gets the Boolean property value that specifies whether access to the collection is synchronized and therefore thread-safe. (Se hereda de SmoCollectionBase.)
	Item[ ( [ ( Int32] ) ] )	Gets a Column object in the collection by index number.
	Item[ ( [ ( String] ) ] )	Gets a Column object in the collection by name.
	Parent	Gets the SqlSmoObject object that is the parent of the ColumnCollection object.
	SyncRoot	Gets an object that can be used to synchronize access to the collection. (Se hereda de SmoCollectionBase.)

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Métodos

	Nombre	Descripción
	Add(Column)	Adds a Column object to the ColumnCollection collection.
	Add(Column, Int32)	Adds a Column object to the ColumnCollection collection at a specified position.
	Add(Column, String)	Adds a Column object to the ColumnCollection collection after a specified Column object currently in the ColumnCollection collection.
	AddExisting	Adds an object to the collection. (Se hereda de AbstractCollectionBase.)
	AddImpl	Adds an object or member to this collection at the specified index. (Se hereda de ArrayListCollectionBase.)
	Contains	Validates whether the parameter collection contains a member with a name equal to the specified string. (Se hereda de ParameterCollectionBase.)
	CopyTo	Copies the collection objects to a one-dimensional array beginning at the index value specified.
	Equals	(Se hereda de Object.)
	Finalize	(Se hereda de Object.)
	GetCollectionElementType	Gets the Collection Element Type. (Se hereda de SmoCollectionBase.)
	GetEnumerator	Returns an IEnumerator interface that allows you to iterate through the objects in the collection. (Se hereda de SmoCollectionBase.)
	GetHashCode	(Se hereda de Object.)
	GetItemById(Int32)	Extracts a member from the referenced collection using a system-defined, unique identifier. (Se hereda de SmoCollectionBase.)
	GetItemById(Int32, String)	Extracts a member from the referenced collection using a system-defined, unique identifier and name. (Se hereda de SmoCollectionBase.)
	GetObjectByIndex	Extracts a member from the referenced collection using a system-defined, unique identifier. (Se hereda de SmoCollectionBase.)
	GetType	(Se hereda de Object.)
	ImplAddExisting	Adds an object to a collection. (Se hereda de ParameterCollectionBase.)
	InitializeChildCollection() () () ()	Initializes the child collections of the referenced collection. (Se hereda de SmoCollectionBase.)
	InitializeChildCollection(Boolean)	Initializes the child collections of the referenced collection with the option to refresh the properties of the referenced collection. (Se hereda de SmoCollectionBase.)
	InitInnerCollection	Initializes a collection. (Se hereda de ParameterCollectionBase.)
	ItemById	Extracts a member from the ColumnCollection collection using a system-defined, unique identifier.
	MemberwiseClone	(Se hereda de Object.)
	Refresh() () () ()	Refreshes the referenced collection. (Se hereda de SmoCollectionBase.)
	Refresh(Boolean)	Refreshes the referenced collection with the option to refresh child objects of the referenced collection. (Se hereda de SmoCollectionBase.)
	Remove(String)	Removes a member from the collection with the specified name. (Se hereda de ParameterCollectionBase.)
	Remove(Column)	Removes a Column object from the ColumnCollection collection.
	ToString	(Se hereda de Object.)
	ValidateParentObject	Validates the parent object exists. (Se hereda de SmoCollectionBase.)

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Campos

	Nombre	Descripción
	initialized	This value supports the SMO infrastructure and is not intended to be used directly from your code. (Se hereda de AbstractCollectionBase.)

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Implementaciones de interfaces explícitas

	Nombre	Descripción
	ICollection. . :: . .CopyTo	Copies the elements from an instance to an array beginning at the index indicated. (Se hereda de SmoCollectionBase.)

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Comentarios

A ColumnCollection object can be used to gain access to a set of columns. You can use the Item property to return a specific Column object.

Thread Safety

Todos los miembros estáticos (compartidos en Microsoft Visual Basic) públicos de este tipo son seguros para operaciones multiproceso. No se garantiza que los miembros de instancia sean seguros para subprocesos.

Ejemplos

Usar colecciones

Seguridad para subprocesos

Cualquier miembro público static (Shared en Visual Basic) de este tipo es seguro para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.

Vea también

Referencia

Espacio de nombres Microsoft.SqlServer.Management.Smo