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WPF: Remember last position in PDF page before tab change - WPF C#: Remember position in PDF page
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nghyemi  
#1 Posted : Friday, June 20, 2025 4:06:22 AM(UTC)
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nghyemi

Rank: Newbie

Groups: Registered
Joined: 8/29/2023(UTC)
Posts: 2
Germany
How can I remember the actual viewpoint of the user? And how can I set it later when the user open same tab again?

I use following code. But the position is wrong:


Code:


            int pageIndex = viewer.CurrentIndex;
            Rect rect = viewer.CalcActualRect(pageIndex);
            map[id].rect = rect;


Here is my code to get the position:

Code:


        public void RestoreRectVisibility(int pageIndex, Rect rect)
        {
            
            Point viewerPoint = new Point(rect.X + rect.Width / 2, rect.Y + rect.Height / 2);
            pdfViewer.ScrollToPoint(pageIndex-1, viewerPoint);
            
         }


Do you have any idea why the code isn't working?

Edited by user Friday, June 20, 2025 5:33:53 AM(UTC)  | Reason: Not specified
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