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| emSize cannot be 0 https://forum.pdfsharp.net/viewtopic.php?f=2&t=1368 |
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| Author: | Rovliet [ Fri Oct 08, 2010 11:23 am ] |
| Post subject: | emSize cannot be 0 |
I'm am under the assumption that if I do the following: Code: SetStyles(doc, MigraDoc.DocumentObjectModel.Unit.FromCentimeter("21")) Dim docRenderer As MigraDoc.Rendering.DocumentRenderer = New MigraDoc.Rendering.DocumentRenderer(doc) docRenderer.PrepareDocument() and SetStyle contains the initialization of style as found elsewhere in this forum, that a new paragraph created with .AddParagraph is of the style StyleNames.Normal. However, when I do a .renderobject with this paragraph I get the error: Value of '0' is not valid for 'emSize'. 'emSize' should be greater than 0 and less than or equal to System.Single.MaxValue Even when I set style active for the paragraph with para.Style = StyleNames.Normal it doesn´t work. However when I do: para.Format.Font.Size = MigraDoc.DocumentObjectModel.Unit.FromPoint(iFontSize) the .renderobject succeeds. How come the style is not being applied? |
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| Author: | henrylar [ Fri Oct 08, 2010 4:12 pm ] |
| Post subject: | Re: emSize cannot be 0 |
I ran into something similar. When I did create a new document, I needed to re-associate my XGraphics object with my new MigraDoc document/page because the XGraphics encapsulates the use of a document/page. My C# example is as follows: ******************************* //We need to make a new page here. myPDFPage = AddPDFPage(pdfdocument); //Reinitialize XGraphics gfx = XGraphics.FromPdfPage(myPDFPage); font = new XFont("Arial", 11, XFontStyle.Regular); gfx.DrawString(" ", font, XBrushes.Black, new XRect(0, 0, myPDFPage.Width, myPDFPage.Height), XStringFormats.Center); gfx.MUH = PdfFontEncoding.Unicode; gfx.MFEH = PdfFontEmbedding.Default; // You always need a MigraDoc document for rendering. myMigraDocPage = myMigradocDoc.AddSection(); //...Later I perform the following bound with the new doc/page created above. myMigradocDoc = myMigraDocPage.Document; docRenderer = new DocumentRenderer(myMigradocDoc); docRenderer.PrepareDocument(); docRenderer.RenderObject(gfx,...) ******************************* Hope this thought helps. Henry |
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| Author: | Thomas Hoevel [ Mon Oct 11, 2010 7:27 am ] |
| Post subject: | Re: emSize cannot be 0 |
Rovliet wrote: SetStyle contains the initialization of style as found elsewhere in this forum [...] How come the style is not being applied? With neither sample code nor MDDDL file there is nothing I can do. |
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| Author: | Rovliet [ Tue Oct 12, 2010 9:57 am ] | |||
| Post subject: | Re: emSize cannot be 0 | |||
In this post are the MDDDL file for the report and a ASP.net VB file that creates the report. If I comment out the lines that define the paragraph (around line 131), I get em-size error, although the paragraph has a defined style.
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| Author: | Thomas Hoevel [ Tue Oct 12, 2010 10:01 am ] |
| Post subject: | Re: emSize cannot be 0 |
Rovliet wrote: strange that I cannot upload a MDDDL file? Not strange, just upload a ZIP file. viewtopic.php?f=2&t=832 |
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| Author: | Rovliet [ Tue Oct 12, 2010 3:11 pm ] |
| Post subject: | Re: emSize cannot be 0 |
Thomas Hoevel wrote: Rovliet wrote: strange that I cannot upload a MDDDL file? Not strange, just upload a ZIP file. viewtopic.php?f=2&t=832 I would think that such a forum-close format would be allowed thats why. I enclosed the needed files in my previous post. |
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| Author: | Thomas Hoevel [ Thu Oct 14, 2010 7:31 am ] |
| Post subject: | Re: emSize cannot be 0 |
Rovliet wrote: I would think that such a forum-close format would be allowed thats why. Using a ZIP file ensures that the file I download is the file you uploaded. There are so many character sets that I don't trust text files (including XML or HTML) to be handled correctly. We've seen wonderful changes occur when sending XML or HTML as an e-mail attachment. ZIP files normally don't get tampered - and they have a CRC check that detects modifications. Back to topic: I can create a document from your MDDDL file without error. I'm sorry but I don't have the time to build a project around your ASPX file so I haven't tried that yet. By the way: Information you should include when asking for support here When asking for support, please indicate what you're using:
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