ListItem Class
- Inheritance:
- System.ObjectListItem
Remarks
List (for example, ordered - with numbers, or unordered - with bullets) appearance in GemBox.Document is defined through ListFormat class that is set on Paragraph's ListFormat property or ParagraphStyle's ListFormat property.
ListFormat is different from other formats (ParagraphFormat and CharacterFormat) because it doesn't directly contain any formatting properties.
It contains a reference to a ListStyle which exposes ListLevelFormats for every list (indentation) level through its ListLevelFormats property.
ListLevelFormats contain direct formatting properties that affect the appearance of the list. Every ListStyle contains exactly 9 ListLevelFormats, one for each possible list (indentation) level.
Paragraph's list (indentation) level can be adjusted with ListLevelNumber property. Paragraph's list-related formatting will then be collected from the ListLevelFormat instance contained in the ListLevelFormats at the position ListLevelNumber. This ListLevelFormat can also be retrieved from the ListLevelFormat property.
ListLevelFormat retrieved from the ListLevelFormat property can be additionally modified to enable overriding property values of ListLevelFormat instance contained in the ListLevelFormats at the position ListLevelNumber on a Paragraph or ParagraphStyle basis.
To create a list in a document, first ListStyle instance has to be created from one of the predefined list style types specified with ListTemplateType enumeration. After that, ListFormat can be created with a specified ListStyle and assigned to a Paragraph's ListFormat property. For a complete example, see Lists example.
If ListStyle is not referenced from anywhere in the document (from any Paragraph or ParagraphStyle, then it won't be saved to a Word Document (DOCX) file, unless it is added to Styles collection.
Paragraph's list content, which prefixes paragraph content, is represented by ListItem type.
ListItems are not permanently stored in model nor they are written to file formats which fully support ListFormat, instead they are recreated each time CalculateListItems() method is called.
If document content or formatting is changed, then CalculateListItems() method should be called again to retrieve the latest list items.
For convenience, after calling CalculateListItems() method, ListItem can also be retrieved from ListItem property.
After calling System.IDisposable.Dispose on System.Collections.Generic.IEnumerator<T> instance retrieved by calling System.Collections.Generic.IEnumerable<T>.GetEnumerator() on instance returned from CalculateListItems() method, paragraph's ListItem property will be null even if paragraph's IsList is true. This enables easy iteration over ListItems returned from CalculateListItems() method by using foreach statement and removing all references to ListItems after the iteration is finished.
Properties
Element
Property Value
Inlines
Gets the content of this ListItem instance.
public InlineCollection Inlines { get; }
Public ReadOnly Property Inlines As InlineCollection
Property Value
The content of this ListItem instance.
Numbers
Gets the list of numbers calculated by counting list paragraphs and their indentation levels.
Property Value
- System.Collections.Generic.IList<System.Int32>
The list of numbers calculated by counting list paragraphs and their indentation levels.
Paragraph
Gets the paragraph which this ListItem prefixes or null if this ListItem represents the value of a ListNum field.
Property Value
Methods
ToString()
Returns a textual representation of this ListItem instance.
Returns
- System.String
A textual representation of this ListItem instance.