Programmatically zooming ?

3 posts, 0 answers
  1. Bekir
    Bekir avatar
    16 posts
    Member since:
    Sep 2010

    Posted 03 Mar 2015 Link to this post


    1. When RadRichTextEditor is opening (DocumentLayoutMode.Paged) in Paged mode, the document page is shown little.  
    Is there a way make it bigger (zoomed) while opening?

    2. The zoom function is working perfectly with ctrl + mouse middle button. But I didn't find any descripton about programmatically zooming in Telerik documentations. How can I make zoom with programmatically?

    3. And I want to prepare some page sizes (A3, A4 e.g.) for ready to use. I use this code for A4 page size,

    documentEditor.ChangeSectionPageSize(new Telerik.WinControls.RichTextEditor.UI.Size(794, 1096));

    Is that true?

    Best regards...
  2. Hristo
    Hristo avatar
    1522 posts

    Posted 06 Mar 2015 Link to this post

    Hello Bekir,

    Thank you for writing.

    Straight to your questions:
    1. and 2. Zooming in and out a document in the RadRichTextEditor affects the value of the ScaleFactor property. You can globally allow or forbid zooming in and out by modifying the value of the AllowScaling property.

    3. A better way to set a page size is to use our PaperTypeConverter static class and set the size to the SectionDefaultPageSize property of the contained RadDocument object. My code snippet below sets a scale factor of 200% and uses a format A4 as section default:
    public partial class Form1 : Form
        public Form1()
            this.Load += Form1_Load;
        private void Form1_Load(object sender, EventArgs e)
            this.radRichTextEditor1.Document.LayoutMode = DocumentLayoutMode.Paged;
            this.radRichTextEditor1.ScaleFactor = new Telerik.WinForms.Documents.Model.SizeF(2f, 2f);
            this.radRichTextEditor1.Document.SectionDefaultPageSize = PaperTypeConverter.ToSize(PaperTypes.A4);

    I hope this information helps. Should you have further questions please do no hesitate to write back.

    Hristo Merdjanov

    Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

  3. Bekir
    Bekir avatar
    16 posts
    Member since:
    Sep 2010

    Posted 06 Mar 2015 in reply to Hristo Link to this post

    Hello Hristo,
    Thank you.
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