Class TextSearchWorker

Performs async text search in a Telerik.Windows.Documents.Fixed.Model.RadFixedDocument. The results will be displayed by the RadPdfViewer in the order they are provided.

Inheritance

System.Object

TextSearchWorker

Namespace: Telerik.XamarinForms.PdfViewer

Assembly: Telerik.XamarinForms.PdfViewer.dll

Syntax

public class TextSearchWorker : Object

Constructors

TextSearchWorker()

Declaration

public TextSearchWorker()

Methods

Search(SearchContext)

Performs text search in a thread different from the main UI thread. Override this method when in need to implement custom search logic. Take into consideration that because this does not run in the main thread, access to UI elements and properties may be limited. Use a statement with the TextDocument as the mutex (example lock(context.Document.TextDocument)) when accessing the Telerik.Windows.Documents.Fixed.Model.RadFixedDocument in order to avoid errors due to concurrent accessing. When creating a TextSearchResult only set the MainSearchResult if you want to override the currently displayed main search result.

Declaration

protected virtual TextSearchResult Search(SearchContext context)

Parameters

SearchContext context

Returns

TextSearchResult

SearchAsync(SearchContext)

Performs async text search. This method is executed on the main UI thread and returns a System.Threading.Tasks.Task in which the actual text search is performed.

Declaration

protected virtual Task<TextSearchResult> SearchAsync(SearchContext context)

Parameters

SearchContext context

Returns

System.Threading.Tasks.Task<TextSearchResult>