RenderObject Height

RenderObject Height

Posted by: friedrich on 30 April 2020, 8:14 am EST

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  friedrich

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  Posted 30 April 2020, 8:14 am EST

  Dear friends,
  
  I will place text with different font-heights in the same line in a C1PrintDocument.
  
  Why it is not possible to read the height or the Y-Position of a render Object as RenderArea, RenderText, RenderRichText. I tried it in thousends of variants. You ever gets the value “auto” and a value. There is a sample to get the Y position of RenderParagraph. But this did not work with RenderArea or RenderText. Otherwise I did not see, how to set the X-Position in a RenderParagraph.

  Imports C1.C1Preview
  
  Imports System.IO
  
  Public Class Form1
  
  Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
  
  MakeDoc1(C1PrintDocument1)
  
  End Sub
  
  Private Sub MakeDoc1(ByVal doc As C1PrintDocument)
  
  Dim rrt1 As New RenderRichText(File.ReadAllText(“D:\Test.rtf”))
  
  doc.Body.Children.Add(rrt1)
  
  C1PrintDocument1.Generate()
  
  Label1.Text = rrt1.Height
  
  Label2.Text = rrt1.Y
  
  End Sub
  
  End Class

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  prabhat.sharma

  

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  Posted 1 May 2020, 4:46 am EST

  Hello Jürgen,

  X, Y, Width and Height property of the RenderObjects takes the value of Unit type and we have created a small sample which shows how to set these properties, please have a look and let us know if you have any other query regarding this.

  Regards,
  
  Prabhat Sharma.
  
  WindowsFormsApp18_Mod.zip

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  friedrich

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  Posted 1 May 2020, 1:33 pm EST - Updated 3 October 2022, 11:57 pm EST

  Hallo Prabhat,

  your sample shows exactly my problem. The output of the console is:

  Height = auto, Width = 5cm
  
  5cm

  1. It did not show the height, only “auto”! Both texts are top aligned. I will write bottom aligned. What can I do to write both text bottom aligned?
  2. Also I want to get the height of a RenderRichText Object.

  Thank you for your answer
  
  Regards and greeting from germany

  Jürgen

  

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  prabhat.sharma

  

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  Posted 4 May 2020, 7:52 am EST

  Hi,

  By default, the height of each RenderObject is ‘Auto’. This means that the object’s size is calculated according to its content. So you cannot get the actual height value. Please refer to following documentation link for information on RenderObject’s size and location behavior:
  
  https://www.grapecity.com/componentone/docs/win/online-report/specifyingrenderobje.html

  To set the alighnmemt of the text in the RenderText use the TextAlignHorz and TextAlignVert property as given below:

  rt1.Style.TextAlignHorz = AlignHorzEnum.Left;
  rt1.Style.TextAlignVert = AlignVertEnum.Bottom;
  

  Regards,
  
  Prabhat Sharma.