## BuiltInDocumentPropertyCollection class A collection of built-in document properties. ```csharp public class BuiltInDocumentPropertyCollection : DocumentPropertyCollection ``` ## Properties | Name | Description | | --- | --- | | [Author](../../aspose.cells.properties/builtindocumentpropertycollection/author/) { get; set; } | Gets or sets the name of the document's author. | | [Bytes](../../aspose.cells.properties/builtindocumentpropertycollection/bytes/) { get; set; } | (**Obsolete.**) Represents an estimate of the number of bytes in the document. | | [Capacity](../../aspose.cells/collectionbase-1/capacity/) { get; set; } | | | [Category](../../aspose.cells.properties/builtindocumentpropertycollection/category/) { get; set; } | Gets or sets the category of the document. | | [Characters](../../aspose.cells.properties/builtindocumentpropertycollection/characters/) { get; set; } | (**Obsolete.**) Represents an estimate of the number of characters in the document. | | [CharactersWithSpaces](../../aspose.cells.properties/builtindocumentpropertycollection/characterswithspaces/) { get; set; } | (**Obsolete.**) Represents an estimate of the number of characters (including spaces) in the document. | | [Comments](../../aspose.cells.properties/builtindocumentpropertycollection/comments/) { get; set; } | Gets or sets the document comments. | | [Company](../../aspose.cells.properties/builtindocumentpropertycollection/company/) { get; set; } | Gets or sets the company property. | | [ContentStatus](../../aspose.cells.properties/builtindocumentpropertycollection/contentstatus/) { get; set; } | Gets or sets the content status of the document. | | [ContentType](../../aspose.cells.properties/builtindocumentpropertycollection/contenttype/) { get; set; } | Gets or sets the content type of the document. | | [Count](../../aspose.cells/collectionbase-1/count/) { get; } | | | [CreatedTime](../../aspose.cells.properties/builtindocumentpropertycollection/createdtime/) { get; set; } | Gets or sets date of the document creation in local timezone. | | [CreatedUniversalTime](../../aspose.cells.properties/builtindocumentpropertycollection/createduniversaltime/) { get; set; } | Gets or sets the Universal time of the document creation. | | [DocumentVersion](../../aspose.cells.properties/builtindocumentpropertycollection/documentversion/) { get; set; } | Represents the version of the file. | | [HyperlinkBase](../../aspose.cells.properties/builtindocumentpropertycollection/hyperlinkbase/) { get; set; } | Gets or sets the hyperlinkbase property. | | [Item](../../aspose.cells.properties/documentpropertycollection/item/) { get; } | Returns a [`DocumentProperty`](../documentproperty/) object by index.(Inherited from [`DocumentPropertyCollection`](../documentpropertycollection/).) | | [Item](../../aspose.cells/collectionbase-1/item/) { get; set; } | | | override [Item](../../aspose.cells.properties/builtindocumentpropertycollection/item/) { get; } | Returns a [`DocumentProperty`](../documentproperty/) object by the name of the property. | | [Keywords](../../aspose.cells.properties/builtindocumentpropertycollection/keywords/) { get; set; } | Gets or sets the document keywords. | | [Language](../../aspose.cells.properties/builtindocumentpropertycollection/language/) { get; set; } | Gets or sets the document's language. | | [LastPrinted](../../aspose.cells.properties/builtindocumentpropertycollection/lastprinted/) { get; set; } | Gets or sets the date when the document was last printed in local timezone. | | [LastPrintedUniversalTime](../../aspose.cells.properties/builtindocumentpropertycollection/lastprinteduniversaltime/) { get; set; } | Gets or sets the Universal time when the document was last printed. | | [LastSavedBy](../../aspose.cells.properties/builtindocumentpropertycollection/lastsavedby/) { get; set; } | Gets or sets the name of the last author. | | [LastSavedTime](../../aspose.cells.properties/builtindocumentpropertycollection/lastsavedtime/) { get; set; } | Gets or sets the time of the last save in local timezone. | | [LastSavedUniversalTime](../../aspose.cells.properties/builtindocumentpropertycollection/lastsaveduniversaltime/) { get; set; } | Gets or sets the universal time of the last save. | | [Lines](../../aspose.cells.properties/builtindocumentpropertycollection/lines/) { get; set; } | (**Obsolete.**) Represents an estimate of the number of lines in the document. | | [LinksUpToDate](../../aspose.cells.properties/builtindocumentpropertycollection/linksuptodate/) { get; set; } | Indicates whether hyperlinks in a document are up-to-date. | | [Manager](../../aspose.cells.properties/builtindocumentpropertycollection/manager/) { get; set; } | Gets or sets the manager property. | | [NameOfApplication](../../aspose.cells.properties/builtindocumentpropertycollection/nameofapplication/) { get; set; } | Gets or sets the name of the application. | | [Pages](../../aspose.cells.properties/builtindocumentpropertycollection/pages/) { get; set; } | Represents an estimate of the number of pages in the document. | | [Paragraphs](../../aspose.cells.properties/builtindocumentpropertycollection/paragraphs/) { get; set; } | (**Obsolete.**) Represents an estimate of the number of paragraphs in the document. | | [RevisionNumber](../../aspose.cells.properties/builtindocumentpropertycollection/revisionnumber/) { get; set; } | Gets or sets the document revision number. | | [ScaleCrop](../../aspose.cells.properties/builtindocumentpropertycollection/scalecrop/) { get; set; } | Indicates the display mode of the document thumbnail. | | [Subject](../../aspose.cells.properties/builtindocumentpropertycollection/subject/) { get; set; } | Gets or sets the subject of the document. | | [Template](../../aspose.cells.properties/builtindocumentpropertycollection/template/) { get; set; } | Gets or sets the informational name of the document template. | | [Title](../../aspose.cells.properties/builtindocumentpropertycollection/title/) { get; set; } | Gets or sets the title of the document. | | [TotalEditingTime](../../aspose.cells.properties/builtindocumentpropertycollection/totaleditingtime/) { get; set; } | Gets or sets the total editing time in minutes. | | [Version](../../aspose.cells.properties/builtindocumentpropertycollection/version/) { get; set; } | Represents the version number of the application that created the document. | | [Words](../../aspose.cells.properties/builtindocumentpropertycollection/words/) { get; set; } | Represents an estimate of the number of words in the document. | ## Methods | Name | Description | | --- | --- | | [BinarySearch](../../aspose.cells/collectionbase-1/binarysearch/)(DocumentProperty) | | | [BinarySearch](../../aspose.cells/collectionbase-1/binarysearch/)(DocumentProperty, IComparer<DocumentProperty>) | | | [BinarySearch](../../aspose.cells/collectionbase-1/binarysearch/)(int, int, DocumentProperty, IComparer<DocumentProperty>) | | | [Clear](../../aspose.cells/collectionbase-1/clear/)() | | | [Contains](../../aspose.cells/collectionbase-1/contains/)(DocumentProperty) | | | [Contains](../../aspose.cells.properties/documentpropertycollection/contains/)(string) | Returns true if a property with the specified name exists in the collection.(Inherited from [`DocumentPropertyCollection`](../documentpropertycollection/).) | | [CopyTo](../../aspose.cells/collectionbase-1/copyto/)(DocumentProperty[]) | | | [CopyTo](../../aspose.cells/collectionbase-1/copyto/)(DocumentProperty[], int) | | | [CopyTo](../../aspose.cells/collectionbase-1/copyto/)(int, DocumentProperty[], int, int) | | | [Exists](../../aspose.cells/collectionbase-1/exists/)(Predicate<DocumentProperty>) | | | [Find](../../aspose.cells/collectionbase-1/find/)(Predicate<DocumentProperty>) | | | [FindAll](../../aspose.cells/collectionbase-1/findall/)(Predicate<DocumentProperty>) | | | [FindIndex](../../aspose.cells/collectionbase-1/findindex/)(Predicate<DocumentProperty>) | | | [FindIndex](../../aspose.cells/collectionbase-1/findindex/)(int, Predicate<DocumentProperty>) | | | [FindIndex](../../aspose.cells/collectionbase-1/findindex/)(int, int, Predicate<DocumentProperty>) | | | [FindLast](../../aspose.cells/collectionbase-1/findlast/)(Predicate<DocumentProperty>) | | | [FindLastIndex](../../aspose.cells/collectionbase-1/findlastindex/)(Predicate<DocumentProperty>) | | | [FindLastIndex](../../aspose.cells/collectionbase-1/findlastindex/)(int, Predicate<DocumentProperty>) | | | [FindLastIndex](../../aspose.cells/collectionbase-1/findlastindex/)(int, int, Predicate<DocumentProperty>) | | | [GetEnumerator](../../aspose.cells/collectionbase-1/getenumerator/)() | | | [IndexOf](../../aspose.cells/collectionbase-1/indexof/)(DocumentProperty) | | | [IndexOf](../../aspose.cells.properties/documentpropertycollection/indexof/)(string) | Gets the index of a property by name.(Inherited from [`DocumentPropertyCollection`](../documentpropertycollection/).) | | [IndexOf](../../aspose.cells/collectionbase-1/indexof/)(DocumentProperty, int) | | | [IndexOf](../../aspose.cells/collectionbase-1/indexof/)(DocumentProperty, int, int) | | | [LastIndexOf](../../aspose.cells/collectionbase-1/lastindexof/)(DocumentProperty) | | | [LastIndexOf](../../aspose.cells/collectionbase-1/lastindexof/)(DocumentProperty, int) | | | [LastIndexOf](../../aspose.cells/collectionbase-1/lastindexof/)(DocumentProperty, int, int) | | | [Remove](../../aspose.cells.properties/documentpropertycollection/remove/)(string) | Removes a property with the specified name from the collection.(Inherited from [`DocumentPropertyCollection`](../documentpropertycollection/).) | | [RemoveAt](../../aspose.cells.properties/documentpropertycollection/removeat/)(int) | Removes a property at the specified index. (2 methods) | ### Remarks Provides access to [`DocumentProperty`](../documentproperty/) objects by their names (using an indexer) and via a set of typed properties that return values of appropriate types. ### Examples ```csharp namespace AsposeCellsExamples { using Aspose.Cells; using Aspose.Cells.Properties; using System; public class BuiltInDocumentPropertyCollectionDemo { public static void BuiltInDocumentPropertyCollectionExample() { // Create a new workbook Workbook workbook = new Workbook(); // Add a new worksheet to the workbook Worksheet worksheet = workbook.Worksheets[0]; // Add sample data for test worksheet.Cells["A1"].PutValue(1); worksheet.Cells["A2"].PutValue(2); worksheet.Cells["A3"].PutValue(3); worksheet.Cells["B1"].PutValue(2); worksheet.Cells["B2"].PutValue(3); worksheet.Cells["B3"].PutValue(4); worksheet.Cells["C1"].PutValue(5); worksheet.Cells["C2"].PutValue(10); worksheet.Cells["C3"].PutValue(15); // Access the built-in document properties collection BuiltInDocumentPropertyCollection builtInProperties = workbook.BuiltInDocumentProperties; // Set various built-in document properties builtInProperties.Author = "John Doe"; builtInProperties.Title = "Sample Workbook"; builtInProperties.Subject = "Demo"; builtInProperties.Keywords = "Aspose.Cells, Demo"; builtInProperties.Comments = "This is a sample workbook created for demonstration purposes."; builtInProperties.Company = "Aspose"; builtInProperties.Category = "Demo Category"; builtInProperties.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; builtInProperties.ContentStatus = "Draft"; builtInProperties.Language = "en-US"; builtInProperties.Manager = "Jane Smith"; builtInProperties.Template = "Standard Template"; builtInProperties.RevisionNumber = "1"; builtInProperties.Version = "1.0"; builtInProperties.DocumentVersion = "1.0"; builtInProperties.ScaleCrop = true; builtInProperties.LinksUpToDate = true; // Set date and time properties builtInProperties.CreatedTime = DateTime.Now; builtInProperties.CreatedUniversalTime = DateTime.UtcNow; builtInProperties.LastPrinted = DateTime.Now; builtInProperties.LastPrintedUniversalTime = DateTime.UtcNow; builtInProperties.LastSavedTime = DateTime.Now; builtInProperties.LastSavedUniversalTime = DateTime.UtcNow; // Set numeric properties builtInProperties.Pages = 10; builtInProperties.Words = 100; builtInProperties.TotalEditingTime = 60.0; // Save the workbook workbook.Save("BuiltInDocumentPropertyCollectionExample.xlsx"); workbook.Save("BuiltInDocumentPropertyCollectionExample.pdf"); } } } ``` ### See Also * class [DocumentPropertyCollection](../documentpropertycollection/) * namespace [Aspose.Cells.Properties](../../aspose.cells.properties/) * assembly [Aspose.Cells](../../)