At my asp.net project I need display big documents to user. Beacuse document has a lot of text, I need use paging. Every page should have about 5000 symbols. I want split pages by logical tokens such as <br/> nbsp space.
What is the best way do it?
Thanks
the easiest thing is to create an extension method for String
public static IEnumerable<string> GetPages(this string text,
int charsPerPage, string breakChar)
{
int count = 0;
int start = 0;
while (count < text.Length)
{
count = Math.Min(text.Length, count + charsPerPage);
if (count == text.Length)
{
yield return text.Substring(start, count - start);
}
else
{
var nextBreak = text.IndexOf(breakChar, count);
if (nextBreak == -1)
{
yield return text.Substring(start, count - start);
start = count + breakChar.Length;
}
else
{
yield return text.Substring(start, nextBreak - start);
start = nextBreak + breakChar.Length;
}
}
}
}
This may not work exactly as I haven't properly tested it - but you get the idea
and you can use it like this
var pages = text.GetPages(5000, "<br/>");
The simplest way would be if each page of every document is just a record in a database, with the document record as master record to keep them all together. But without knowing the structure of your documents, it's hard to tell if such a thing would work. So, the big documents... What are they? PFD files? Word documents? Something else? Can you split them in pages in some database structure or not?
You can search for an HTML splitter such as the one at http://splity.sourceforge.net/
Pages really don't make sense in HTML. The browser could be anywhere from a full-screen 27" high-resolution display to a mobile phone (or even an old 80x25 character display). One size definitely doesn't fit all.
If you really care about page formatting then PDF is the way to go.
