Use ITextSharp To Determine Text Field's Maximum Number Of Characters Allowed?
Oct 6, 2010
I have a PDF document with a number of text fields, several of which have a maximum length - namely, a maximum number of allowable characters. Is there a way using iTextSharp to determine this setting? Here's the code I have so far:
Dim reader As New iTextSharp.text.pdf.PdfReader("Foobar.pdf")
Dim inputFields As IDictionary(Of String, iTextSharp.text.pdf.AcroFields.Item) = reader.AcroFields.Fields
For Each key As String In inputFields.Keys
Dim PDFFieldName As String = key
Dim MaxFieldLength As Integer = ???
I need to set MaxFieldLength to the number of allowable characters for the current form field being iterated over.
How can I set a asp.net text box to accept up to 20 characters? I was trying the range validator and I set it up to 0 min value and 20 max value. The prolem is that if I write 12933, the range validator errors appear saying "only 20 characters allowed" so I think it is adding the values.
I have a column in my repeater which allows as many as 255 characters and causes the page contents pushed away to the right if any of the record has all 255 characters in that column. How can I tell it to wrap the text after 50 characters?
I couldnt help but notice that if you have a FileUpload-control, and then try to upload a file thats bigger(in bytes) then the allowed maxiumsize, then the site crashes or some wierd "Connection problem"-page shows up, atleast for me in Firefox...
So my question is simply...is this just for me?..and if not, how do I fix this the best way?...cause the current "crash-page" aint a nice way of handeling the problem in my opinion...whould be much better to actually just show some custom-page that lets the user know that thier trying to upload a file thats way to big..
I'm developing an sms application in c#. The service that I use to send a message only allows characters form the 7 bit alphabet. I'm looking for a way to check if a message only contains characters from this alphabet.
My first idea was to split the message into a character array and then loop these characters and compare them to the alphabet. But I bet there is a much better.
I've got a sql table, that just keeps getting more and more columns added. I optimize the db as much as possible, but am curious about how many fields a table can have, and if there is a way to check if I'm getting too much data per row?
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I have an ambitious requirement for an asp.net 2.0 web page that contains a table (gridview), and each row in the grid contains 6 select (dropdown) controls for data entry. The number of rows that will be displayed is dependent upon the user's search parameters, which are specified in another area of the page. Unfortunately, with the default (and even basic) search parameters specified, the grid could contain several hundred rows. I've noticed that the browser, in this case IE8, starts behaving rather erratically once I reach a large number of rows -- no documented evidence for the number of rows where this begins to be a problem. For example, trying to view the source of the page results in a message from IE stating that there was a problem with the page that forced the browser to reload it, and I never get the source. Obviously the page loads and renders rather slowly also.
I know that my solution is probably going to involve paging the gridview such that it only displays 20 or so rows per page, and I'll have to write code to handle the saving of changes in the dropdown values when the user changes pages. I can probably turn off viewstate on the gridview also. However, the question I really want to pose is this -- has anyone seen a documented rule indicating the maximum number of input controls that an HTML browser form is supposed to be able to contain? I could not find anything on the Internet after doing a search, and I suspect the answer may be whatever the browser can handle based on the machine configuration it is running on. Any rules of thumb you use?
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I wanted to get the page number in each page of the pdf generated using iTextSharp 188.8.131.52.
right now part of the code is
But when i do this , it is showing the page number but the problem is it is showing same page number in all the pages. like "1" in all the pages. how to get the page number for the pdf file using iTextSharp version 184.108.40.206 ?
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Error: The network path was not found.
using iTextSharp.text; using iTextSharp.text.pdf; using iTextSharp.text.html; using System.Data.SqlClient; using System.Text; using iTextSharp.text.html.simpleparser;
I know this error is due the Image Path. But, not able to resolve.
I want to create PDF in a folder and not be able to downloadable to user.