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setting font size results in System.NullReferenceException http://forum.pdfsharp.com/viewtopic.php?f=2&t=4158 |
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Author: | tomse [ Thu Jul 23, 2020 1:16 pm ] |
Post subject: | setting font size results in System.NullReferenceException |
Hello I get a System.NullReferenceException at style.Font.Size = 20; (beneath [Title]), when trying out the following code. What am I doing wrong? The project is simplified down to as little as possible, and still get the error message. VS2019 CE, PDFsharp-MigraDoc-gdi v1.50.5147 from nuget (please make note I'm a novice coder) Code: using MigraDoc.DocumentObjectModel;
using MigraDoc.Rendering; using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Diagnostics; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace PdfTest { public partial class Form1 : Form { public Form1() { InitializeComponent(); } void createPDF() { // Create a new PDF document Document document = new Document(); Section section = document.AddSection(); section.PageSetup.PageFormat = PageFormat.A4; document.Info.Title = "Test"; document.Info.Author = "Test"; document.Info.Subject = "Test"; DefineStyles(document); Paragraph paragraph = section.Headers.Primary.AddParagraph(); paragraph.Style = "Title"; paragraph.AddText("HEADER Test Text"); paragraph.Format.Alignment = ParagraphAlignment.Left; paragraph = section.Headers.Primary.AddParagraph(); paragraph.Style = "Footer"; paragraph.AddText("Footer test text"); paragraph.Format.Alignment = ParagraphAlignment.Left; PdfDocumentRenderer pdfRenderer = new PdfDocumentRenderer(false); pdfRenderer.Document = document; pdfRenderer.RenderDocument(); const string filename = "c:\\temp\\HelloWorld.pdf"; pdfRenderer.PdfDocument.Save(filename); // ...and start a viewer. Process.Start(filename); } public static void DefineStyles(Document document) { Style style = document.Styles["Normal"]; style.Font.Name = "Arial"; style.Font.Size = 14; // Create a font style = document.Styles["Title"]; style.Font.Size = 20; style.Font.Bold = true; style = document.Styles["DateField"]; style.Font.Size = 10; style = document.Styles["Text"]; style.Font.Bold = true; style = document.Styles["Footer"]; style.Font.Size = 8; style = document.Styles["Heading1"]; style.Font.Size = 30; } private void button1_Click(object sender, EventArgs e) { createPDF(); } } } |
Author: | TH-Soft [ Thu Jul 23, 2020 2:55 pm ] |
Post subject: | Re: setting font size results in System.NullReferenceExcepti |
tomse wrote: Hello The style does not exist. Create a style with the name "Title" or use an existing style like "Heading1".I get a System.NullReferenceException at style.Font.Size = 20; (beneath [Title]), when trying out the following code. What am I doing wrong? See also: http://pdfsharp.net/wiki/Invoice-sample ... e_Styles_1 |
Author: | tomse [ Fri Jul 24, 2020 8:14 am ] |
Post subject: | Re: setting font size results in System.NullReferenceExcepti |
Thanks for the info, I'll try that. I used http://pdfsharp.net/wiki/HelloMigraDoc-sample.ashx this as a reference. Which only use predefined (which I didn't know then) styles. |
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