WorksheetBase Class

Provides the base class for the Sheetn classes in document-level projects for Microsoft Office Excel.

Inheritance Hierarchy

System.Object
  Microsoft.Office.Tools.Excel.WorksheetBase

Namespace:  Microsoft.Office.Tools.Excel
Assembly:  Microsoft.Office.Tools.Excel.v4.0.Utilities (in Microsoft.Office.Tools.Excel.v4.0.Utilities.dll)

Syntax

'Declaration
Public MustInherit Class WorksheetBase _
    Implements IWorksheetExtension, IExtension, EntryPoint, ISupportInitialize,  _
    IBindableComponent, IComponent, IDisposable

public abstract class WorksheetBase : IWorksheetExtension, 
    IExtension, EntryPoint, ISupportInitialize, IBindableComponent, IComponent, 
    IDisposable

The WorksheetBase type exposes the following members.

Constructors

	Name	Description
	WorksheetBase	Infrastructure.

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Properties

	Name	Description
	_CodeName	Infrastructure.
	_DisplayRightToLeft	Infrastructure.
	Application	Gets a Microsoft.Office.Interop.Excel.Application object that represents the Microsoft Office Excel application.
	AutoFilter	Gets a Microsoft.Office.Interop.Excel.AutoFilter that provides information about filtered lists on the worksheet if filtering is enabled. Gets nulla null reference (Nothing in Visual Basic) if filtering is off.
	AutoFilterMode	Gets or sets a value that indicates whether filtering is currently enabled on the worksheet (that is, whether the filter drop-down arrows are currently displayed).
	Base	Gets the Worksheet object that this WorksheetBase object extends.
	BindingContext	Infrastructure.
	Cells	Gets a Range object that represents all the cells on the worksheet (not just the cells that are currently in use).
	CircularReference	Gets a Range object that represents the range containing the first circular reference on the sheet, or gets nulla null reference (Nothing in Visual Basic) if there is no circular reference on the sheet.
	CodeName	Infrastructure.
	Columns	Gets a Range object that represents one or more columns on the worksheet.
	Comments	Gets a Microsoft.Office.Interop.Excel.Comments collection that represents all the comments for the worksheet.
	ConsolidationFunction	Gets the function code used for the current consolidation.
	ConsolidationOptions	Gets a three-element Array of consolidation options.
	ConsolidationSources	Gets an Array of strings that name the source sheets and ranges for the worksheet's current consolidation.
	Controls	Gets the collection of managed controls that are contained on the worksheet.
	Creator	Gets a value that indicates the application in which the worksheet was created.
	CustomProperties	Gets a Microsoft.Office.Interop.Excel.CustomProperties object representing the identifier information associated with a worksheet.
	DataBindings	Infrastructure.
	DataHost	Infrastructure.
	DisplayAutomaticPageBreaks	Infrastructure.
	DisplayPageBreaks	Gets or sets a value that indicates whether page breaks (both automatic and manual) on the worksheet are displayed.
	DisplayRightToLeft	Gets or sets a value that indicates whether the worksheet is displayed from right to left instead of from left to right.
	EnableAutoFilter	Gets or sets a value that indicates whether AutoFilter arrows are enabled when user-interface-only protection is turned on.
	EnableCalculation	Gets or set a value that indicates whether Microsoft Office Excel automatically recalculates the worksheet when necessary.
	EnableFormatConditionsCalculation	Gets or sets a value that determines whether conditional formats will occur automatically.
	EnableOutlining	Gets or sets a value that indicates whether outlining symbols are enabled when user-interface-only protection is turned on.
	EnablePivotTable	Gets or sets a value that indicates whether PivotTable controls and actions are enabled when user-interface-only protection is turned on.
	EnableSelection	Gets or sets a value indicating which cells can be selected on the sheet.
	FilterMode	Gets a value that indicates whether the worksheet is actively filtering data.
	HostContext	Infrastructure.
	HPageBreaks	Gets an Microsoft.Office.Interop.Excel.HPageBreaks collection that represents the horizontal page breaks on the sheet.
	Hyperlinks	Gets a Microsoft.Office.Interop.Excel.Hyperlinks collection that represents the hyperlinks for the range or worksheet.
	Index	Gets the index number of the worksheet within the collection of worksheets.
	InnerObject	Gets a Microsoft.Office.Interop.Excel.Worksheet that represents the underlying native object for the WorksheetBase.
	ItemProvider	Infrastructure.
	ListObjects	Gets a collection of Microsoft.Office.Interop.Excel.ListObject objects in the worksheet.
	MailEnvelope	Gets an e-mail header for the worksheet.
	Name	Gets or sets the name of the worksheet.
	Names	Gets a Microsoft.Office.Interop.Excel.Names collection that represents all the worksheet-specific names (names defined with the "WorksheetName!" prefix).
	Next	Gets a Microsoft.Office.Interop.Excel.Worksheet that represents the next sheet.
	OnCalculate	Infrastructure.
	OnData	Infrastructure.
	OnDoubleClick	Infrastructure.
	OnEntry	Infrastructure.
	OnSheetActivate	Infrastructure.
	OnSheetDeactivate	Infrastructure.
	Outline	Gets an Microsoft.Office.Interop.Excel.Outline that represents the outline for the worksheet.
	PageSetup	Gets a Microsoft.Office.Interop.Excel.PageSetup that contains all the page setup settings for the worksheet.
	Parent	Gets the parent object for the worksheet.
	Previous	Gets a Microsoft.Office.Interop.Excel.Worksheet that represents the previous sheet.
	PrintedCommentPages	Gets the number of comment pages that will be printed for the current worksheet. This property can be used only in Excel 2010 projects.
	ProtectContents	Gets a value that indicates whether the contents of the worksheet (the individual cells) are protected.
	ProtectDrawingObjects	Gets a value that indicates whether shapes are protected.
	Protection	Gets a Microsoft.Office.Interop.Excel.Protection object that represents the protection options of the worksheet.
	ProtectionMode	Gets a value that indicates whether user interface-only protection is turned on.
	ProtectScenarios	Gets a value that indicates whether worksheet scenarios are protected.
	QueryTables	Gets the Microsoft.Office.Interop.Excel.QueryTables collection that represents all the query tables on the worksheet.
	Range	Gets a Microsoft.Office.Interop.Excel.Range object that represents a cell or a range of cells.
	Rows	Gets a Range object that represents one or more rows on the worksheet.
	Scripts	Gets the Microsoft.Office.Core.Scripts collection, which contains Script objects representing blocks of script or code in the worksheet when it is saved as a Web page.
	ScrollArea	Gets or sets the range where scrolling is allowed, as an A1-style range reference.
	Shapes	Gets a Microsoft.Office.Interop.Excel.Shapes object that represents all the shapes on the worksheet.
	Site	Infrastructure.
	SmartTags	Gets a Microsoft.Office.Interop.Excel.SmartTags object representing the collection of smart tags for the worksheet.
	Sort	Gets the sorted values in the current worksheet.
	StandardHeight	Gets the standard (default) height of all the rows in the worksheet, in points.
	StandardWidth	Gets or sets the standard (default) width of all the columns in the worksheet.
	Tab	Gets a Microsoft.Office.Interop.Excel.Tab for the worksheet.
	Tag	Gets or sets the object that contains data about the worksheet.
	TransitionExpEval	Gets or sets a value that indicates whether Microsoft Office Excel uses Lotus 1-2-3 expression evaluation rules for the worksheet.
	TransitionFormEntry	Gets or sets a value that indicates whether Microsoft Office Excel uses Lotus 1-2-3 formula entry rules for the worksheet.
	Type	Gets the worksheet type.
	UsedRange	Gets a Microsoft.Office.Interop.Excel.Range object that represents all the cells that have contained a value at any time.
	Visible	Gets or sets a Microsoft.Office.Interop.Excel.XlSheetVisibility value that determines whether the object is visible.
	VPageBreaks	Gets a Microsoft.Office.Interop.Excel.VPageBreaks collection that represents the vertical page breaks on the sheet.

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Methods

	Name	Description
	Activate	Infrastructure.
	Arcs	Infrastructure.
	BeginInit	Infrastructure.
	Buttons	Infrastructure.
	CalculateMethod	Calculates the formulas in the worksheet.
	ChartObjects	Gets an object that represents either a single embedded chart (a Microsoft.Office.Interop.Excel.ChartObject) or a collection of all the embedded charts (a Microsoft.Office.Interop.Excel.ChartObjects) on the worksheet.
	CheckBoxes	Infrastructure.
	CheckSpelling	Infrastructure.
	CircleInvalid	Circles invalid entries on the worksheet.
	ClearArrows	Clears the tracer arrows from the worksheet. Tracer arrows are added by using the auditing feature.
	ClearCircles	Clears circles from invalid entries on the worksheet.
	Copy	Copies the worksheet to another location in the workbook.
	Delete	Deletes the underlying Microsoft.Office.Interop.Excel.Worksheet object, but does not delete the host item. It is highly recommended that this method not be used.
	Dispose	Releases all resources used by the current instance of the WorksheetBase class.
	DrawingObjects	Infrastructure.
	Drawings	Infrastructure.
	DropDowns	Infrastructure.
	EndInit	Infrastructure.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Evaluate	Converts a Microsoft Office Excel name to an object or a value.
	ExportAsFixedFormat	Exports to a file of the specified format.
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	FinishInitialization	Infrastructure.
	get_Range	Gets a Microsoft.Office.Interop.Excel.Range object that represents a cell or a range of cells. Use the Range property instead of this method.
	GetAutomationObject	Called by the Visual Studio Tools for Office runtime to get an object that can be used by VBA code in the worksheet.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GroupBoxes	Infrastructure.
	GroupObjects	Infrastructure.
	Initialize	Infrastructure.
	InitializeDataBindings	Infrastructure.
	Labels	Infrastructure.
	Lines	Infrastructure.
	ListBoxes	Infrastructure.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Move	Moves the worksheet to another location in the workbook.
	OLEObjects	Gets an object that represents either a single OLE object (an Microsoft.Office.Interop.Excel.OLEObject) or a collection of all OLE objects (an Microsoft.Office.Interop.Excel.OLEObjects collection) on the worksheet.
	OnShutdown	Infrastructure.
	OnStartup	Infrastructure.
	OptionButtons	Infrastructure.
	Ovals	Infrastructure.
	Paste	Pastes the contents of the Clipboard onto the worksheet.
	PasteSpecial	Pastes the contents of the Clipboard onto the worksheet, using a specified format. Use this method to paste data from other applications or to paste data in a specific format.
	Pictures	Infrastructure.
	PivotTables	Gets an object that represents either a single PivotTable report (a Microsoft.Office.Interop.Excel.PivotTable object) or a collection of all the PivotTable reports (a Microsoft.Office.Interop.Excel.PivotTables object) on a worksheet.
	PivotTableWizard	Creates a Microsoft.Office.Interop.Excel.PivotTable object.
	PrintOut	Prints the worksheet.
	PrintOutEx	Prints the worksheet.
	PrintPreview	Shows a preview of the worksheet as it would look when printed.
	Protect	Protects a worksheet so that it cannot be modified.
	Rectangles	Infrastructure.
	ResetAllPageBreaks	Resets all page breaks on the specified worksheet.
	SaveAs	Saves changes to the worksheet in a different file.
	Scenarios	Gets an object that represents either a single scenario (a Microsoft.Office.Interop.Excel.Scenario object) or a collection of scenarios (a Microsoft.Office.Interop.Excel.Scenarios object) on the worksheet.
	ScrollBars	Infrastructure.
	Select	Selects the worksheet.
	SetBackgroundPicture	Sets the background graphic for the worksheet.
	ShowAllData	Makes all rows of the currently filtered list visible. If AutoFilter is in use, this method changes the arrows to "All."
	ShowDataForm	Displays the data form associated with the worksheet.
	Spinners	Infrastructure.
	TextBoxes	Infrastructure.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	Unprotect	Removes protection from the worksheet. This method has no effect if the worksheet is not protected.
	XmlDataQuery	Gets a Range object that represents the cells mapped to a particular XPath. Gets nulla null reference (Nothing in Visual Basic) if the specified XPath has not been mapped to the worksheet, or if the mapped range is empty.
	XmlMapQuery	Gets a Range object that represents the cells mapped to a particular XPath. Gets nulla null reference (Nothing in Visual Basic) if the specified XPath has not been mapped to the worksheet.

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Events

	Name	Description
	ActivateEvent	Occurs when the worksheet is activated.
	BeforeDoubleClick	Occurs when the worksheet is double-clicked, before the default double-click action.
	BeforeRightClick	Occurs when the worksheet is right-clicked, before the default right-click action.
	BindingContextChanged	Infrastructure.
	Calculate	Occurs after the worksheet is recalculated.
	Change	Occurs when something changes in the WorksheetBase cells.
	Deactivate	Occurs when the worksheet loses focus.
	Disposed	Infrastructure.
	FollowHyperlink	Occurs when you click any hyperlink on a worksheet.
	PivotTableAfterValueChange	Occurs after a cell or range of cells inside a PivotTable are edited or recalculated (for cells that contain formulas). This event can be used only in Excel 2010 projects.
	PivotTableBeforeAllocateChanges	Occurs before changes are applied to a PivotTable. This event can be used only in Excel 2010 projects.
	PivotTableBeforeCommitChanges	Occurs before changes are committed against the OLAP data source for a PivotTable. This event can be used only in Excel 2010 projects.
	PivotTableBeforeDiscardChanges	Occurs before changes to a PivotTable are discarded. This event can be used only in Excel 2010 projects.
	PivotTableChangeSync	Occurs after changes to a PivotTable. This event can be used only in Excel 2010 projects.
	PivotTableUpdate	Occurs after a PivotTable report is updated on a worksheet.
	SelectionChange	Occurs when the selection changes on a worksheet.
	Shutdown	Occurs when the worksheet host item shuts down.
	Startup	Infrastructure.

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Explicit Interface Implementations

	Name	Description
	EntryPoint.BeginInit	Infrastructure.
	EntryPoint.EndInit	Infrastructure.
	EntryPoint.FinishInitialization	Infrastructure.
	EntryPoint.Initialize	Infrastructure.
	EntryPoint.InitializeDataBindings	Infrastructure.
	EntryPoint.OnShutdown	Infrastructure.
	EntryPoint.OnStartup	Infrastructure.
	IExtension.ExtensionBase	Infrastructure.
	IWorksheetExtension.GetAutomationObject	Infrastructure.

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Remarks

The WorksheetBase class is the base class for the Sheetn classes in document-level Excel projects created by using Visual Studio. Use the Sheetn classes to programmatically access the worksheets in your project. The WorksheetBase class is a host item that represents a worksheet in document-level projects. For more information, see Host Items and Host Controls Overview and Worksheet Host Item.

The WorksheetBase class provides the same members as the Microsoft.Office.Interop.Excel.Worksheet class in the Excel primary interop assembly, but it adds the following features:

• Controls property. Use this property to add managed controls to an Excel worksheet, or to remove controls, at run time.

• InnerObject property. Use this property to get the underlying Microsoft.Office.Interop.Excel.Worksheet object for a worksheet host item.

• GetAutomationObject method. Override this method to expose a class in your project to VBA code in the worksheet.

• Document-level events, such as ActivateEvent and Change, that are provided only at the application level in the Excel object model. That is, in the Excel object model, these events are defined in the Microsoft.Office.Interop.Excel.Application class rather than the Microsoft.Office.Interop.Excel.Worksheet class.

Creating Worksheet Host Items

You cannot create WorksheetBase objects programmatically in Office projects.

In document-level projects, the Sheetn classes (which derive from WorksheetBase) are instantiated automatically by the Visual Studio Tools for Office runtime when the end user opens the workbook. For more information, see Programming Document-Level Customizations.

In application-level projects, you can create worksheet host items programmatically by using the GetVstoObject method. The worksheet host item you create is a Microsoft.Office.Tools.Excel.Worksheet object, rather than a WorksheetBase object. For more information, see Extending Word Documents and Excel Workbooks in Application-Level Add-ins at Run Time.

Usage

This type is used only in Office projects that target the .NET Framework 4. The assembly that defines this type is not part of the Visual Studio Tools for Office runtime. You must deploy this assembly with your solution. For more information, see Assemblies in the Visual Studio Tools for Office Runtime.

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.

See Also

Reference

Microsoft.Office.Tools.Excel Namespace

Worksheet Host Item

Other Resources

Host Items and Host Controls Overview