TextFieldParser - reading tab delimited file

VB.NET

    Sponsored Links

    Next

  • 1. Sounds.........
    Jimboe, Can I have a GetSound() method added to go with the GetInfrared and GetVisual methods I've already got please? Cheers Robin (oh, and will it be a wav format sound clip?)
  • 2. How Can a Console APP reject a shutdown/logoff request
    I have a console app that would like to reject a shutdown/restart request unless a certain condition exists. I have written programs with forms in which you can be notified when the form is about to be closed and can set Cancel=True to prevent it unless data has been saved first and would like to do the same with several Console applications that have no forms. Is there perhaps an event handler that could be set up to do this? Regards, Brian.
  • 3. Hiding information in a jpg image's binary stream
    Does anyone know of any any libraries or code available for embedding information inside a jpg image? I would like to be able to put an address and order number inside a jpg without harming the image, so that I can retrieve it at a later date for validating the image. I do not want the information drawn on the image or altering the image's appearance. Thanks in advance. Eric
  • 4. Showing AS/400 Data Files
    I have recently started working with Visual Basic .NET. Having very little experiance in VB .NET, I am starting from the gound up with very simple programs. One of my first task to achieve is accessing an AS/400 data file ( in real time located on the AS400) and displaying it on a webpage over the internet. I am wanting to acheive this by placing the data in a data grid on the web page. I have been working with entry level (tutorials) programs that access data from a "Microsoft Access" data base and place them on a data grid but I am now needing to move on and create a real time working program that will access the AS400 data. Can anyone suggest a starting point for me or offer a web site that might start me in the right direction. I am running the following setup: Web Server: Windows 2003 AS/400: iSeries 850 Visual Studio: 2003 Program Language: Visual Basic .NET and ASP.NET Any help is very much appreciated. Thanks Andy XXXX@XXXXX.COM
  • 5. Immediate window?
    Is there an Immediate window in vb.net 2003? If so, how do you bring it up?

TextFieldParser - reading tab delimited file

Postby al jones » Fri, 22 Sep 2006 20:34:05 GMT

I using textfieldparser to read a data file. which contains, for example:

Amond Szegi	Amondo Szegi
andr nossek	Andr Nossek
 Characte	Character

Note the vowels with diacriticals and the copyright symbol - it is dropping
these (and other similar) characters which fall outside ascii range
(apparently)

The code is simple and looks like:
        Using MyReader As New TextFieldParser(Application.StartupPath &
"\designers.txt")
            MyReader.TextFieldType = FileIO.FieldType.Delimited
            MyReader.CommentTokens = New String() {"#"}
            MyReader.Delimiters = New String() {vbTab}
            MyReader.TrimWhiteSpace = True
            Dim currentRow As String()
            intElement = 0
            While Not MyReader.EndOfData
                Try
                    currentRow = MyReader.ReadFields()
                    If Microsoft.VisualBasic.Left(currentRow(0), 7) =
"UNKNOWN" Then
                        strUnknownDesigner = currentRow(1)
                        Continue While
                    End If
                    arDesigner(intElement, 0) = currentRow(0)
                    arDesigner(intElement, 1) = currentRow(1)
                    arDesignerCounter(intElement) = 0
                    intElement += 1
                Catch ex As MalformedLineException
                    MsgBox("Designer Line " & ex.Message & "is not valid
and will be skipped.")
                End Try
            End While
        End Using

I can see any reason in the documentation for it dropping copyright or
the French and German (etc vowels with accents.

Comments or suggestions anyone??

Thanks //al

Re: TextFieldParser - reading tab delimited file

Postby Andrew Morton » Fri, 22 Sep 2006 21:02:59 GMT


> Characte Charact>r
>>
> Note the vowels with diacriticals and the copyright symbol - it >s
> dropping these (and other similar) characters which fall outsi>e
> ascii range (apparently)

It appears to be an encoding problem where the file uses (I'm guessing) 
ISO-8859-1 or maybe Windows-1252 whereas the .NET framework defaults to 
Unicode. Does a TextFieldParser have a setting for that (or have a 
.BaseClass that does)?

Or perhaps you can arrange for the file to be encoded with Unicode?

Andrew 



Re: TextFieldParser - reading tab delimited file

Postby al jones » Sat, 23 Sep 2006 02:31:52 GMT





>> AmondSzegi Amondo Szegi
>>> andrnossek AndrNosse>>
>> Characte Charact>>
>> Note the vowels with diacriticals and the copyright symbol - it >>
>> dropping these (and other similar) characters which fall outsi>>
>> ascii range (apparentl>)
> It appears to be an encoding problem where the file uses (I'm guessing> 
> ISO-8859-1 or maybe Windows-1252 whereas the .NET framework defaults t> 
> Unicode. Does a TextFieldParser have a setting for that (or have > 
> .BaseClass that does>?
> Or perhaps you can arrange for the file to be encoded with Unicod>?
> Andrew

Possibly my confusion is from the fact that I maintain these files (there
are three of them) within VS 2005 so I would have epected them to be
unicode. The characters exist within the files (the three line examples are
cut & paste from the file itself) so I don't understand why reading them
would literally eliminate the characters.

I've been over the TextFieldParser docs and see nothing that indicates that
it shouldn't take the data as presented.

Re: TextFieldParser - reading tab delimited file

Postby Jeff Glatt » Sun, 24 Sep 2006 01:42:40 GMT

Try OrchidGrid control, which can pase/import data from delimited files.






Similar Threads:

1.How to read a Tab Delimited text file in to a Flexgrid without using .Clip Method

I  need to Read Tab limited Txt file in other controls, on a form,
convert to PDF .... etc etc

I saw Your eg. in a previous post...its very good..

another problem the flexgrid displays a special charecter in the first
col  if .Clip method is used.
Further i should  be able to find the no of cols and rows in the Txt
file . to re create the file to any suitable  control .

Thank You

2.How to read a Tab Delimited text file in to a Flexgrid without using .Clip Method

How to read a Tab Delimited text file in to  a Flexgrid without using
.Clip Method

3.Problem reading Unicode from a tab-delimited file

Hi,
I have a spreadsheet that contains multiple languages. Per project
requirements I have saved this speadsheet in a tab-delimted format
using Excel 2007. I have been able to pretty much get all the
charaters correct when reading the file. I will also have to parse
Japanese from this, which I have not been able to do. I cannot read
the 3 byte characters from the file correctly for some reason. I have
an example here showing 2 characters for simplicity.

??

I get the correct value for ? but not for ? The value of ?should be
2019, instead I getting something that just displays a box in the
debugger, some value around 65k.
Note in the code snippet below, If I pass the unicodeString to the
foreach (Byte b in encodedBytes)
it works perfectly, outs the correct values for the charaters.. I have
a tab-delimted file that contains the same characters. When I open
that file and reead from it, the ?is correct, but the ?is not.
Likewise for the Japanese characters I am tring to read. Almost seems
like the issue is the file open() or the readline().
Any help and code examples would be appreciated.
Thanks
Jeff




 String unicodeString = " ???";;
            // Create a UTF-8 encoding.
            UTF8Encoding utf8 = new UTF8Encoding();
            // determine whether fileName is a file
            if (File.Exists(fileName))
            {
                     // obtain reader and file contents
                    StreamReader stream = new StreamReader(fileName);
                    // Open the file to read from.
                    using (StreamReader sr = File.OpenText(fileName))
                    {

                        while( sr.ReadLine() != null )
                        {

                            // Encode the string.
                            Byte[] encodedBytes = utf8.GetBytes
(unicodeString);
                            Console.WriteLine();
                            Console.WriteLine("Encoded bytes:");
                            foreach (Byte b in encodedBytes)
                            {
                                if (b != 9)
                                {
                                    Console.Write("[{0}]", b);
                                }
                            }

                        }

                    }

            } // end if

4.Reading tab delimited file

I have a file that is tab delimited and has no header row with column 
headings. What is the best method for reading this data into a dataset?

5.Reading Tab Delimited Data With Imbedded Double Quotes

I can't get the Microsoft Jet OLEDB 4.0 driver to read a tab delimited 
text file that has double quotes imbedded in the data. For example

Field1 | Field2 | Field3
Bob | Pant Size 34" Waist | 22

(I'm using a vertical bar here for the tab)

Field2 will contain: Pant Size 34
Field3 will contain: Waist

I have a schema.ini

[MyFile.txt]
ColNameHeader=True
Format=TabDelimited
MaxScanRows=25
CharacterSet=OEM

How do I get it to read the double quote?

Tom

6. Reading Tab Delimited Text thorugh VB6

7. Reading a delimited text file into Access 2000 mdb file with VB 6.0

8. Save a excel file as a TAB delimited text file



Return to VB.NET

 

Who is online

Users browsing this forum: No registered users and 54 guest