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DataFile Class

The DataFile object represents a SQL Server data file.

Namespace:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

[PhysicalFacetAttribute]
[SfcElementTypeAttribute("File")]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
public sealed class DataFile : DatabaseFile, 
	ICreatable, ISfcSupportsDesignMode

The DataFile type exposes the following members.

  NameDescription
Public methodDataFile()Initializes a new instance of the DataFile class.
Public methodDataFile(FileGroup, String)Initializes a new instance of the DataFile class on the specified file group with the specified name.
Public methodDataFile(FileGroup, String, String)Initializes a new instance of the DataFile class on the specified file group with the specified name and file name.
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  NameDescription
Public propertyAvailableSpaceGets the amount of available space in the data file in KB.
Public propertyBytesReadFromDiskGets the number of bytes read from disk.
Public propertyBytesWrittenToDiskGets the number of bytes written to disk.
Protected propertyExecuteForScalarGets or sets the Boolean property value that specifies whether the object is set to the execute for scalar option. (Inherited from SqlSmoObject.)
Public propertyFileNameGets or sets the data file name.
Public propertyGrowthGets or sets the growth increment for the data file in KB or percent.
Public propertyGrowthTypeGets or sets the growth type for the data file in kilobytes or percent.
Public propertyIDGets the ID value that uniquely identifies the data file.
Public propertyIsOfflineGets the Boolean property value that specifies whether the data file is offline or not.
Public propertyIsPrimaryFileGets the Boolean property value that specifies whether the data file is the primary file of the database.
Public propertyIsReadOnlyGets the Boolean property value that specifies whether the data file is read-only or can be updated.
Public propertyIsReadOnlyMediaGets the Boolean property value that specifies whether the data file is stored on read-only media.
Public propertyIsSparseGets the Boolean value that specifies whether the file is a sparse file. Sparse files are used in database snapshots.
Protected propertyIsTouchedGets the Boolean property value that specifies whether the object properties have been updated but not yet persisted on the server. (Inherited from SqlSmoObject.)
Public propertyMaxSizeGets or set the maximum size to which the data file can grow in KB.
Public propertyNameGets or sets the name of the object. (Inherited from NamedSmoObject.)
Public propertyNumberOfDiskReadsGets the number of disk reads.
Public propertyNumberOfDiskWritesGets the number of disk writes.
Protected propertyObjectInSpaceGets the Boolean property value that specifies whether the object exists in isolation, or whether it is directly or indirectly connected to the instance of SQL Server. (Inherited from SqlSmoObject.)
Public propertyParentGets or sets the FileGroup object that is the parent of the DataFile object.
Public propertyPropertiesGets a collection of Property objects that represent the object properties. (Inherited from SqlSmoObject.)
Protected propertyScalarResultGets the scalar result for the referenced object. (Inherited from SqlSmoObject.)
Public propertySizeGets or sets the current size of the data file in KB.
Public propertyStateGets the state of the referenced object. (Inherited from SmoObjectBase.)
Public propertyUrnGets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Inherited from SqlSmoObject.)
Public propertyUsedSpaceGets the amount of used space in the data file in KB.
Public propertyUserDataGets or sets user-defined data associated with the referenced object. (Inherited from SmoObjectBase.)
Public propertyVolumeFreeSpaceGets the volume free space in bytes.
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  NameDescription
Protected methodAddDatabaseContext(StringCollection)Add the database context to the collection of queries identified by the queries parameter. (Inherited from SqlSmoObject.)
Protected methodAddDatabaseContext(StringCollection, ScriptingOptions)Add the database context to the collection of queries identified by the queries parameter, and using the specified scripting options. (Inherited from SqlSmoObject.)
Public methodAlterUpdates any property changes to the object to the instance of Microsoft SQL Server. (Inherited from DatabaseFile.)
Protected methodAlterImplActivates the object altered event. (Inherited from SqlSmoObject.)
Protected methodAlterImplFinishMethod called when object altered event finishes. (Inherited from SqlSmoObject.)
Protected methodAlterImplInitMethod called when object-altered event is intialized. (Inherited from SqlSmoObject.)
Protected methodAlterImplWorkerCalls the Alter methods. (Inherited from SqlSmoObject.)
Protected methodBindDefaultImplBinds the default items identified by the parameters. (Inherited from SqlSmoObject.)
Protected methodBindRuleImplBinds the rule schema to the rule and columns identified by the parameters. (Inherited from SqlSmoObject.)
Protected methodCheckCollationChecks the order of the scripting options by the collation method identified by the collationName parameter. (Inherited from SqlSmoObject.)
Protected methodCheckObjectState()Validates the state of the referenced object. (Inherited from SqlSmoObject.)
Protected methodCheckObjectState(Boolean)Validates the state of the referenced object with the option to specify that an exception is thrown if the object is not yet created. (Inherited from SqlSmoObject.)
Protected methodCheckObjectStateImplChecks the state of a SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodCheckVersion100Checks whether version of SQL Server is SQL Server 2008. (Inherited from SqlSmoObject.)
Protected methodCheckVersion80Checks the validity of the object on SQL Server 2000. (Inherited from SqlSmoObject.)
Protected methodCheckVersion80SP3Checks the validity of the object on SQL Server 2000 SP3. (Inherited from SqlSmoObject.)
Protected methodCheckVersion90Check the validity of the object on SQL Server 2005. (Inherited from SqlSmoObject.)
Protected methodCheckVersionBelow90Checks whether version of SQL Server is before SQL Server 2005. (Inherited from SqlSmoObject.)
Protected methodCleanObjectSets the object to unmodified state. (Inherited from SqlSmoObject.)
Public methodCreateCreates a data file on the instance of SQL Server as defined by the DataFile object.
Protected methodCreateImplCreates an object with scripting options. (Inherited from SqlSmoObject.)
Protected methodCreateImplFinishMethod called when the create event finishes. (Inherited from SqlSmoObject.)
Protected methodCreateImplInitMethod called when the create event initializes. (Inherited from SqlSmoObject.)
Public methodDiscoverDiscovers a list of type Object. (Inherited from SqlSmoObject.)
Public methodDropDrops a database file. (Inherited from DatabaseFile.)
Protected methodDropImplDrops a SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodDropImplWorkerCalls the drop methods. (Inherited from SqlSmoObject.)
Protected methodEnumScriptImplEnumerates scripts specified by the so parameter. (Inherited from SqlSmoObject.)
Protected methodEnumScriptImplWorkerCalls the methods that enumerate scripts specified by the so parameter. (Inherited from SqlSmoObject.)
Protected methodEnumScriptImplWorkerSOChangedReturns an IEnumerable string describing the scripting options for an object. (Inherited from SqlSmoObject.)
Public methodEquals (Inherited from Object.)
Protected methodExecuteNonQueryExecutes a batch in the context of the database where there are no results returned. (Inherited from SqlSmoObject.)
Protected methodFinalize (Inherited from Object.)
Protected methodFormatSqlVariantFormats an object as SqlVariant type. (Inherited from SqlSmoObject.)
Protected methodGenerateDataSpaceFileStreamScriptGenerates a script to create data file. (Inherited from SqlSmoObject.)
Protected methodGenerateDataSpaceScriptGenerates a script to allocate space in the data file. (Inherited from SqlSmoObject.)
Protected methodGetBindDefaultScriptGets the script that binds defaults specified by the defSchema and defName parameters. (Inherited from SqlSmoObject.)
Protected methodGetBindRuleScriptGets the script that specifies the binding rules. (Inherited from SqlSmoObject.)
Protected methodGetBoolParameter(StringBuilder, ScriptingOptions, String, String, Int32)Assigns a Boolean parameter of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodGetBoolParameter(StringBuilder, ScriptingOptions, String, String, Int32, Boolean)Assigns a Boolean property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodGetDateTimeParameterAssigns the datetime property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodGetDateTimeParameterAsIntAssigns the datetime property of the SqlSmoObject as an integer value if the datetime property is not null. (Inherited from SqlSmoObject.)
Protected methodGetDBNameGets the database name that is associated with the object. (Inherited from SqlSmoObject.)
Protected methodGetEnumParameterAssigns an enumeration property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodGetFragOptionStringGets a FragmentationOption object as a string value. (Inherited from SqlSmoObject.)
Protected methodGetGuidParameterAssigns a Guid property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Public methodGetHashCode (Inherited from Object.)
Protected methodGetParameter(StringBuilder, ScriptingOptions, String, String, Int32)Assigns a parameter of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodGetParameter(StringBuilder, ScriptingOptions, String, String, Int32, Boolean)Assigns a parameter of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodGetPropValueGets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetPropValueOptionalGets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetPropValueOptionalAllowNullGets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetRealValueGets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetScriptingOptionsForCreateGets ScriptingOptions for the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetServerNameGets the name of the instance of SQL Server with which the object is associated. (Inherited from SqlSmoObject.)
Protected methodGetServerObjectGets the server of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetSqlServerVersionNameGets the version name of the instance of SQL Server with which the object is associated. (Inherited from SqlSmoObject.)
Protected methodGetStringParameter(StringBuilder, ScriptingOptions, String, String, Int32)Assigns a string parameter of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetStringParameter(StringBuilder, ScriptingOptions, String, String, Int32, Boolean)Assigns a string parameter of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetTimeSpanParameterAsIntAssigns a time span parameter of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Public methodGetType (Inherited from Object.)
Protected methodGetUrnRecursive(StringBuilder)Assigns an Urn object of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetUrnRecursive(StringBuilder, UrnIdOption)Assigns an Urn object of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodImplInitializeInitializes the fields of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Public methodInitialize()Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Public methodInitialize(Boolean)Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Protected methodIsObjectDirtyVerifies whether the object properties have been modified and the changes have not yet been persisted on the instance of SQL Server. (Inherited from SqlSmoObject.)
Protected methodIsObjectInitializedVerifies whether the object has been initialized. (Inherited from SqlSmoObject.)
Protected methodIsObjectInSpaceVerifies whether the object is isolated or connected to the instance of SQL Server. (Inherited from SqlSmoObject.)
Protected methodIsVersion80SP3Determines whether the version of SQL Server is SQL Server 2000 with SP3. (Inherited from SqlSmoObject.)
Protected methodIsVersion90AndAboveDetermines whether the version of SQL Server is SQL Server 2005 or later. (Inherited from SqlSmoObject.)
Protected methodMarkDroppedSets the SqlSmoState to dropped. (Inherited from SqlSmoObject.)
Public methodMarkForDropMarks the database file to be dropped next time its parent object is altered by the Alter method. (Inherited from DatabaseFile.)
Protected methodMarkForDropImplSets the SqlSmoState to dropped. (Inherited from SqlSmoObject.)
Protected methodMemberwiseClone (Inherited from Object.)
Protected methodPostAlterMethod activated after the SqlSmoObject is altered. (Inherited from SqlSmoObject.)
Protected methodPostCreateMethod activated after the SqlSmoObject is created. (Inherited from SqlSmoObject.)
Protected methodPostDropMethod activated after the SqlSmoObject is dropped. (Inherited from SqlSmoObject.)
Public methodRefreshRefreshes the object and retrieves properties when the object is next accessed. (Inherited from SqlSmoObject.)
Public methodRenameRenames a database file. (Inherited from DatabaseFile.)
Protected methodRenameImplIdentified for informational purposes only. Not supported. Future compatibility is not guaranteed. (Inherited from NamedSmoObject.)
Protected methodRenameImplWorkerIdentified for informational purposes only. Not supported. Future compatibility is not guaranteed. (Inherited from NamedSmoObject.)
Protected methodScriptAlterAlters the script that is used to create the file in the database. (Inherited from DatabaseFile.)
Protected methodScriptChangeOwnerThis method supports the SMO infrastructure and is not intended to be used directly from your code. (Inherited from NamedSmoObject.)
Protected methodScriptCreateAlters the SqlSmoObject according to the parameters. (Inherited from SqlSmoObject.)
Protected methodScriptDdlThrows InvalidSmoOperationException. (Inherited from SqlSmoObject.)
Protected methodScriptDropDrops the script that is used to create the file in the database. (Inherited from DatabaseFile.)
Protected methodScriptImpl()Gets a collection of scripts of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodScriptImpl(ScriptingOptions)Gets a collection of scripts of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodScriptImplWorkerGets a collection of scripts of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodScriptOwnerAlters the script owner authorization. (Inherited from NamedSmoObject.)
Protected methodScriptRenameRenames the script in the database file. (Inherited from DatabaseFile.)
Public methodSetOfflineSets the database file status to offline.
Protected methodSetParentImplSets the parent of the SqlSmoObject to the newParent parameter. (Inherited from SqlSmoObject.)
Protected methodSetSchemaOwnedSets the schema owned value. (Inherited from NamedSmoObject.)
Public methodShrinkShrinks a database file. (Inherited from DatabaseFile.)
Public methodToStringReturns a String that represents the referenced object. (Inherited from SqlSmoObject.)
Protected methodTouchImplNot implemented. (Inherited from SqlSmoObject.)
Protected methodUnbindDefaultImplUnbinds the default columns of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected methodUnbindRuleImplUnbinds rules of the SqlSmoObject. (Inherited from SqlSmoObject.)
Public methodValidateValidates the state of an object. (Inherited from SmoObjectBase.)
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  NameDescription
Public eventPropertyChangedRepresents the event that occurs when a property is changed. (Inherited from SqlSmoObject.)
Public eventPropertyMetadataChangedRepresents the event that occurs when property metadata changes. (Inherited from SqlSmoObject.)
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  NameDescription
Protected fieldm_ExtendedPropertiesRepresents a property that is defined to extend the properties provided by a SqlSmoObject. (Inherited from SqlSmoObject.)
Protected fieldsingletonParentRepresents the singleton parent. (Inherited from SqlSmoObject.)
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  NameDescription
Explicit interface implemetationPrivate methodIAlienObject.DiscoverDiscovers any dependencies. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetDomainRootReturns the root of the domain. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetParentGets the parent of this object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetPropertyTypeGets the type of the specified property. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetPropertyValueGets the value of the specified property. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetUrnGets the Unified Resource Name of the object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.ResolveGets the instance that contains the information about the object from the Unified Resource Name of the object. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.SetObjectStateSets the object state to the specified SfcObjectState value. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.SetPropertyValueSets the property value. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodISfcPropertyProvider.GetPropertySetGets the interface reference to the set of properties of this object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate propertyISfcSupportsDesignMode.IsDesignModeGets a Boolean value that indicates whether the object supports design mode.
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To get the DataFile object properties, users can be a member of the public fixed server role.

To set the DataFile object properties, users must have ALTER permission on the database or be a member of the db_owner fixed database role.

To create a data file, users must have ALTER permission on the database or be a member of the db_owner fixed database role.

To drop a data file, users must have ALTER permission on the database or be a member of the db_owner fixed database role.

Thread Safety

Any public static (Shared in Microsoft Visual Basic) members of this type are safe for multithreaded operations. Any instance members are not guaranteed to be thread safe.

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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