Hi,
I have a function to trim a string to a given rectangle - i have done this by creating a Document object, adding a paragraph object to it and then recursively adding text to it, when it goes onto the 2nd page, it knows to stop as the text is bigger than the rectangle) this has worked fine for me up until now...
I have a piece of text with two line breaks:
1.Schedule meeting with the 2 Chief Delivery Officers (CDO).
2. Schedule meeting with the CEO.
3. Authorization for 1 or 2 days up front consulting work.
which basically looks like this (in the code):
1.Schedule meeting with the 2 Chief Delivery Officers (CDO).\r2. Schedule meeting with the CEO.\r3. Authorization for 1 or 2 days up front consulting work.
as i am trimming this text to two lines, the "page break" which means the rectangle has been filled happens on the 2nd "\r" next to "the CEO." this page break is being put onto the next page and will eventually be trimmed off, but when i try to do PrepareDocument(), it crashes out and wont even step into my Catch statement! I have tried using "\n" instead of the "\r" to create the break and also used paragraph.AddLineBreak() and both cause it to crash out. this is a very specific problem, but surely its a bug in MigraDoc?
I am using 1.2 of the framework and unfortunately as this code has already been released to the world, i cant really upgrade as it may cause issues to arise.
any help would be appreciated.
Here is the function:
Code:
public static string TrimTextToXLines(string txt, double width, int maxLines, Font font)
{
try
{
//txt = txt.Replace("\r", "\n");
string _currText = "";
Document _doc = new Document();
MigraDoc.Rendering.DocumentRenderer _renderer = new MigraDoc.Rendering.DocumentRenderer(_doc);
for (int i = 0; i < txt.Length; i++)
{
if (txt[i].ToString() == "\n")
{
txt = txt;
}
try
{
Paragraph _para = null;
try
{
_doc.Sections.Clear();
_doc.AddSection();
_doc.LastSection.PageSetup.PageWidth = width;
_doc.LastSection.PageSetup.LeftMargin = _doc.LastSection.PageSetup.RightMargin = _doc.LastSection.PageSetup.TopMargin = _doc.LastSection.PageSetup.BottomMargin = 0;
_doc.LastSection.PageSetup.PageHeight = maxLines * (font.Size + 5);
_para = _doc.LastSection.AddParagraph();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
try
{
string _txt = txt.Substring(0, i);
_para.AddFormattedText(_txt, font);
if(_txt.Contains("\r"))
{
System.Text.RegularExpressions.Regex _regex = new Regex("\r");
for(int f = 0; f < _regex.Matches(_txt).Count; f++)
_para.AddLineBreak();
}
}
catch(Exception ex)
{
Console.WriteLine(ex.Message);
}
try
{
string _currChar = txt[txt.Length - 1].ToString();
Console.WriteLine("Char: '" + _currChar + "'");
Console.WriteLine("Char in string: '" + txt[txt.Length - 1] + "'");
_renderer.PrepareDocument();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
if (_renderer.FormattedDocument.PageCount > 1)
{
break;
}
try
{
_currText = txt.Substring(0, i);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
if (i == txt.Length - 1)
{
_currText = txt;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
_doc.Sections.Clear();
return _currText;
}
catch(Exception ex)
{
Console.WriteLine(ex.Message);
return "";
}
}
It is being passed these params:
txt = 1.Schedule meeting with the 2 Chief Delivery Officers (CDO).\r2. Schedule meeting with the CEO.\r3. Authorization for 1 or 2 days up front consulting work.
width = 352.84168601036072
font = (Arial, regular, size 8)
thanks,
Mike
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