It seems like in order to use "TextFieldParser " you need to include the path of the file to be parsed. Is it possible to use OpenFileDialog1 and then choose a file? I keep getting error messages.
Public Class Form1
Private Sub btnOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOpen.Click
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I am running a piece of code which takes 3 secs to process and it is triggered by the clicking on the OK button on the OpenFileDialog1 box.
Everything works fine except the OpenFileDialog1 remains visible during this 3 second time period and I would prefer it to immediately hide once I click on the OK button.
I have inserted me.refresh in various locations without success but I believe this is acting on the form itself.
Any thoughts on ow to allow the box to close / refresh before the processing
I am having a problem with the AutoUpgradeEnabled property on OpenFileDialog1 and SaveFileDialog1. When set to True and I call it, it works fine, but it takes 2-5 seconds to return the filename I just selected with the dialog. The Dialog box changes to a larger box than when it's set to False. If I leave the property set to False, everything works normally and the selected filename pops up immediately. What does this AutoUpgradeEnabled property mean and why does it take so long to work? (I experienced this problem with VS2005 and VS2010)
View 1 Repliesi use below code to open CSV file with openfiledialog to datagridview1. So i can show my CSV file at datagridview1.my problem is thaif CSV file have 5-10 line, it works good. But if CSV file 1000 line, it doesnt open. I have a error message that "it more than 60 second and it get CPU and RAM so much. You should use something(I dont understand what it means so i wrote something)"
OpenFileDialog1.Filter = "CSV Dosyalar± (*.csv)|*.csv"
'OpenFileDialog1.InitialDirectory = initialDirectory
OpenFileDialog1.Title = "CSV Dosyas± Seiniz"
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Here is code for selecting a file with the openfiledialog1 on button4_click
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
OpenFileDialog1.Title = "Please Select a File"
[Code]....
This code only can select files.. and not folders.... how do i make it select folders and not files?
I watched a youtube video that showing me how to make multiselect work and it worked but its just one problem: It opens two times.
Public Class Form1
Private Sub HScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles HScrollBar1.Scroll
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I have a textbook loop using a TextFiledParser, which terminates when EndofData is trueTrouble is it's true prematurely. There is a knowledgebase article which decribes the issue perfectly but it only applies to V3.5. I'm using V4.0.I can't for the life of me see anything wrong with the data file, or the code. I reluctantly
MyReader.TextFieldType = FileIO.FieldType.Delimited
MyReader.SetDelimiters(",")
MyReader.HasFieldsEnclosedInQuotes = False
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I am trying to use the TextFieldParser in windows 7. I have tried running visual studio 2008 in elevated security mode but i still get file not found. I have tried it on my XP machine and it runs completely fine.am i doing something wrong or is it that windows 7 doesn't like to give access to the filesystem?
View 5 RepliesI'm currently busy coding a hangman game in VB.NET.As a wordlist, I have a textfile containing 1520 words, each one seperated by a new line. The best I could think of to get a random word is with a Randomize() function. Then getting the word from the line # which was randomly generated.
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Is there any better way for me to extract the word from that random line? If not, what would be the delimiter I should use for this and how do I quickly change the breaklines into that new delimiter without resorting to Office?
Also, how can I use the textfieldparser to get the file from resources? When I tried using my.resources.filename instead of "filepath", it gave me an ArgumentException due to "invalid characters in the path".
I am having problems getting the data I need. I keep getting "index was outside bounds array" I guess I am just plain confused. The text file looks like:
First = John Smith
Last = 550 Jackson St
Street = Nantucket
City = xxxxxxx
Misc = xxxxxx
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Ok so I am taking jm advice and using TextField Parser instead of ADO.net to read my delimited files and then build my own datatablesFirst question is how would I query the data?I need to be able to have two tables, one with sold propertys and one with propertys still for sale.The table I created thus far has all the records, the problem and my second question is how do you allow for a null value ?If one of the records isnt Sold then it won't have a Selling Price therefore when I set my datacolumn to be of System.Integer type It is not accepted
HTML
Private Sub FileToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FileToolStripMenuItem.Click
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I am using the TextFieldParser to read a 3rd party .txt Tab Delimited File Sometimes the file contains duplicate column names and subsequently I cant create my DataTable.
How can I check for duplicates first and change the name of the duplicate fields so I can populate my Table?
Example:
I have two columns called ST and would like to Change of of them to ST1 or something similiar to populate my table
Dim safeFileName As String = IO.Path.GetFileName(Me.OpenFileDialog1.FileName)
Using myReader As New Microsoft.VisualBasic.FileIO.TextFieldParser(safeFileName)
myReader.SetDelimiters(vbTab)
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The following is a text file of 4 lines delimited with (,) making 8 elements and 1text string making 9 eliments in all.In my Environmental dictionary Environment and Conservation, Devoid of life non-biological.The Oxford University Physical and Theoretical Chemistry Laboratory definition says free of biological organisims. Does this mean the water in a pond is not abiotic but pure water is?"The following from the MSDN help that works:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using MyReader As New Microsoft.VisualBasic.FileIO.TextFieldParser("L:GlossaryListBox0
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I'm using the following code to read some values in from a tab delimited text file:
vb.net
Using Parser As FileIO.TextFieldParser = My.Computer.FileSystem.OpenTextFieldParser(LogFile, vbTab)
Parser.TextFieldType = FileIO.FieldType.Delimited
Dim comments(0) As String
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As you can see I have set the HasFieldsEnclosedInQuotes property to true on the textfieldparser because I want to make sure I capture the data correctly if quotation marks are used. If I set the HasFieldsEnclosedInQuotes property to False then it all works (or at least it doesnt error anyway) but like I said, I need to have that set to true because otherwise if the line contained a tab character within the quote marks then my app would think this was two separate fields and process it incorrectly.
Is this class normally slow or maybe there is something in my process making it slow.I have to import 170,000 rows of data from a fixed length text file into a SQL table. It takes about 2 minutes in a DTS package on SQL server 2000. But we are migrating to a SQL 2008 server and since this code has several manual steps and does not manipulate the data I thought it would be easier to use the TextFieldParser object to handle reading in the data.
Here is the code:
CODE:
I have a VB2010 project where I need to read a tab delimited 50MB file using Microsoft.VisualBasic.FileIO.TextFieldParser. This technique works fine until the reader encounters a Unicode character upon which it inserts the little square thingy. The obvious choice is to change the encoding of the reader to Unicode from the default. This would probably work fine but for most files but this one is fairly large and I get the error TextFieldParser is unable to complete the read operation because maximum buffer size has been exceeded. By the way this file can be read completely without the Unicode option. Making the file smaller or breaking it up really isn't an option. Is is possible to increase the buffer size or is there another way to read this data that places the data in fields like the textparser and allows unicode characters?
View 9 RepliesI use a textfieldparser to read a csv file in my app. I set the delimiter to a, Problem is, if there is a field that contains double quotes, the textfieldparser fails. So if I have Example",test. it fails. If i remove the " it works. That's quite odd. How can I fix this.
View 8 RepliesI am using VB.NET's TextFieldParser (Microsoft.VisualBasic.FileIO.TextFieldParser) to read a delimited file. However, when I try to read in a field with consecutive newlines within the field, the consecutive newlines are turned into a single new line. I would like the consecutive newlines to be preserved, but am unsure how.Here's an example file that I am reading in with exactly one field. The quotes are part of the file's content and there are three newlines (including the two consecutive newlines following line 2):
"This is line 1
This is line 2
This is line 4, which follows two consecutive newlines."Here is the code that I am using to parse and read in the file:
Dim reader as New Microsoft.VisualBasic.FileIO.TextFieldParser(myFile, System.Text.Encoding.Default)
reader.TextFieldType = FileIO.FieldType.Delimited
reader.SetDelimiters(",")
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The end of the text document my application is reading is denoted by a character that I cant identify, copy or paste. I attached an image of it so you can see. I have no control over the formatting of the document so I can't change the character. During debugging it shows the same character as shown in the picture, but if I hit the little tack next to where the variable shows then it changes to "f". However, if I try to see if the variable equals "f" it returns false.
View 3 RepliesI am learning to use TextFieldParser to read a fixed width text data file. It works great. I copied code below. Question: How to stop at the end of each line because I need to add some code?
Using tf As New TextFieldParser(fileName)
tf.TextFieldType = FileIO.FieldType.FixedWidth
tf.SetFieldWidths(60, 30, 20) //three columns
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When I run:
OpenFileDialog1.ShowDialog()
The windows open up but in the textbox there is already text: "OpenFileDialog1".
Screenshot:
How do I get rid of this?
I am trying to use Microsoft.VisualBasic.FileIO.TextFieldParser for parsing any format of tab delimited text file that user may have and show the data in web page in tabular fashion.I have sample tsv file with text qualifiers such as quotes saved in different encoding styles for different platforms such as pc, unix, mac saved using textpad. and I am trying to parse these using TextFieldParser. It works for all PC files but fails for mac.
View 2 RepliesI am trying to implement a BGW and want to report progress to a progress bar for my TextFieldParser program, sometimes if your opening very large files it takes a while and I would like the user to be able to see the progress and have some interaction so they know the program is still running I am a little hung up on what to in the reportprogress
I have:
worker.ReportProgress(0, myReader.ReadFields())
and its not doing anything, I didnt expect it too since ReadFields is an array
parser
Private Sub BackgroundWorker1_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
Dim worker As System.ComponentModel.BackgroundWorker = DirectCast(sender, System.ComponentModel.BackgroundWorker)
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I am using Microsoft.VisualBasic.Fileio.TextFieldParser to parse a CSV file that was created with Excel 2003. The parser is working great with the exception that it is converting extended ascii values to question marks! So if the file content was:
± 3
The TextFieldParser is returning
? 3
I have tried all of the encodings in the System.Text.Encoding package with no luck. I thought I had it with UTF7 but it was dropping other characters like replacing the + sign with a space.
If NewEntryName.Text = "" And OpenFileDialog1.FileName = Nothing Then MsgBox("Please choose a name for your game.", vbExclamation) MsgBox("Please find your game.", vbExclamation) Else Button1.Text = NewEntryName.Text game1 = True Panel1.Visible = False End If
I want it to show the first MsgBox if the NewEntryName.text = "" and I want it to show the second MsgBox if openfiledialog1 = nothing... how do I do it?