Restricted Document Access

TextControl can edit documents with restrictions such as forbid editing, printing, formatting or copying contents to the clipboard. These restrictions can be specified with the DocumentPermissions property of a TextControl or WPF.TextControl and they are activated, if the EditMode property is changed from Edit to ReadAndSelect. If UsePassword is specified with the EditMode property, a dialog box is opened where the user can enter a password which protects the restrictions. To unprotect the document the same password must be entered when the edit mode is reset to Edit. The set of permissions and the password are saved in the document in an encrypted form. When a password protected document is loaded it is opened read only. Supported text formats are RTF, Microsoft Word (DOC and DOCX), Adobe PDF and the TX TextControl text format (TX). Editable regions are pieces of text that remain editable when the EditMode property has been set to ReadAndSelect. An editable region can be defined through a start position and a length or through a selection and they can overlap. All editable regions are contained in a EditableRegionCollection which can be obtained with the TextControl.EditableRegions, TextFrame.EditableRegions or HeaderFooter.EditableRegions property. These collections can be used to add or to remove an editable region. Each editable region is related to a user through the UserName property. Only this user can edit the region, when the document has been set to read only. To specify the users who have access to the document the UserNames property must be used. To specify that everyone can edit a certain region the user name must be an empty string. Events occur, when an editable region is created (EditableRegionCreated), deleted (EditableRegionDeleted), entered (EditableRegionEntered) or left (EditableRegionLeft). An editable region is highlighted on the screen. By default the highlight color depends on the user name, but it can be set to a certain value with the EditableRegion.HighlightColor property. To provide a user-interface for specifying restrictions and adding editable regions, the Windows.Forms.Ribbon.RibbonPermissionsTab and WPF.RibbonPermissionsTab have been added to the number of predefined ribbon tabs.

Classes

Class	Description
TXTextControl.DocumentPermissions	The DocumentPermissions class provides settings determining how the document can be edited, when the EditMode is changed from Edit to ReadAndSelect.
TXTextControl.EditableRegion	An EditableRegion object represents an editable region in a TX Text Control document.
TXTextControl.EditableRegionCollection	Contains all editable regions in the main text or another part of a document.
TXTextControl.EditableRegionEventArgs	The EditableRegionEventArgs class provides data for the EditableRegionCreated, EditableRegionDeleted, EditableRegionEntered and EditableRegionLeft events.

Constructors

Constructor	Description
TXTextControl.EditableRegion	Initializes a new instance of the EditableRegion class.

Enumerations

Enumeration	Description
TXTextControl.EditableRegionCollection.AddResult	Specifies the result when an editable region has been added to the document.

Events

Event	Description
TXTextControl.ServerTextControl.EditableRegionCreated	Occurs when an editable region has been created.
TXTextControl.ServerTextControl.EditableRegionDeleted	Occurs when an editable region has been deleted.

Methods

Method	Description
TXTextControl.EditableRegion.Save	Saves the editable region's text with the specified format.
TXTextControl.EditableRegion.ScrollTo	Sets the current input position to the beginning of an editable region and scrolls it into the visible part of the document.
TXTextControl.EditableRegionCollection.Add	Adds a new editable region to the document.
TXTextControl.EditableRegionCollection.CopyTo	Copies the elements of the collection to an array, starting at a particular index.
TXTextControl.EditableRegionCollection.GetEnumerator	Returns an enumerator that can be used to iterate through the collection.
TXTextControl.EditableRegionCollection.GetItem	Gets the editable region with the specified id.
TXTextControl.EditableRegionCollection.GetItems	Gets all editable regions at the current text input position.
TXTextControl.EditableRegionCollection.Remove	Removes an editable region from the collection.
TXTextControl.ServerTextControl.OnEditableRegionCreated	Raises the EditableRegionCreated event.
TXTextControl.ServerTextControl.OnEditableRegionDeleted	Raises the EditableRegionDeleted event.

Properties

Property	Description
TXTextControl.DocumentPermissions.AllowCopy	Specifies whether document content can be copied to the clipboard.
TXTextControl.DocumentPermissions.AllowEditingFormFields	Specifies whether form fields can be edited.
TXTextControl.DocumentPermissions.AllowFormatting	Gets or sets a value specifying whether the document can be formatted.
TXTextControl.DocumentPermissions.AllowFormattingStyles	Gets or sets a value specifying whether formatting styles can be used to format the document.
TXTextControl.DocumentPermissions.AllowPrinting	Gets or sets a value specifying whether the document can be printed.
TXTextControl.DocumentPermissions.ReadOnly	Gets or sets a value specifying whether the document is read only.
TXTextControl.EditableRegion.DefaultHighlightColor	Gets the default highlight color of an editable region.
TXTextControl.EditableRegion.HighlightColor	Gets or sets the highlight color for the editable region.
TXTextControl.EditableRegion.HighlightMode	Gets or sets a value indicating when the editable region is highlighted.
TXTextControl.EditableRegion.ID	Gets or sets the editable region's identifier.
TXTextControl.EditableRegion.Length	Gets the number of characters which belong to the editable region.
TXTextControl.EditableRegion.UserName	Gets or sets the name of the user who can edit the region.
TXTextControl.EditableRegion.Number	Gets the editable region's number.
TXTextControl.EditableRegion.Start	Gets the index (one-based) of the first character which belongs to the editable region.
TXTextControl.EditableRegion.Text	Gets the editable region's text.
TXTextControl.EditableRegionCollection.Count	Gets the number of elements contained in the collection.
TXTextControl.EditableRegionCollection.IsSynchronized	Returns true if the collection is designed to be thread safe, otherwise, it returns false.
TXTextControl.EditableRegionCollection.Item	Gets the editable region with the specified number from the collection.
TXTextControl.EditableRegionCollection.SyncRoot	Gets an object that can be used to synchronize access to the collection.
TXTextControl.EditableRegionEventArgs.EditableRegion	Gets an object that represents the editable region which causes the event.
TXTextControl.ServerTextControl.EditableRegions	Gets a collection of all editable regions contained in the document.