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Leadtools.Documents.UI Namespace > DocumentViewer Class : GotoPage Method |
public virtual void GotoPage( int pageNumber )
'Declaration
Public Overridable Sub GotoPage( _ ByVal pageNumber As Integer _ )
'Usage
Dim instance As DocumentViewer Dim pageNumber As Integer instance.GotoPage(pageNumber)
public: virtual void GotoPage( int pageNumber )
This method moves the view to the page specified by performing the following:
Finds the ImageViewerItem that corresponds to the page number in the ImageViewer. This is the item at index pageNumber - 1
Sets this as the ActiveItem
If thumbnails are used: Ensures that the thumbnail for the page is visible by calling Thumbnails.ImageViewer.EnsureItemVisible
If annotations are used: Sets the corresponding AnnContainer as the ActiveContainer
Start with the example created in DocumentViewer, remove all the code in the Example function and add the code below.
When the user clicks the Example button, we will go to the next page till we reach the last one.
Imports Leadtools Imports Leadtools.Controls Imports Leadtools.Documents Imports Leadtools.Documents.UI Imports Leadtools.Codecs Imports Leadtools.Caching Imports Leadtools.Annotations.Core Imports Leadtools.Forms.Ocr If _documentViewer.CurrentPageNumber < _documentViewer.PageCount Then _documentViewer.GotoPage(_documentViewer.CurrentPageNumber + 1) Else MessageBox.Show("You reached the last page") End If
using Leadtools; using Leadtools.Controls; using Leadtools.Documents; using Leadtools.Documents.UI; using Leadtools.Codecs; using Leadtools.Caching; using Leadtools.Annotations.Core; using Leadtools.Forms.Ocr; if (_documentViewer.CurrentPageNumber < _documentViewer.PageCount) _documentViewer.GotoPage(_documentViewer.CurrentPageNumber + 1); else MessageBox.Show("You reached the last page");