VS 2010 Determine If A File Is Ascii Or Not
Sep 9, 2011Is there a way I can determine if a file is an ascii type vs a binary type without making a list of file extensions to check against?
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Scan A Text File To Determine If It Is A Text File And If It Contains Any Non-ASCII Characters?
Jan 27, 2012what would be the optimum code in VB2010 that check a file to determine:
1) is it a text file, and
2) if it is a text file, does it contain any non-ASCII characters
Note that LF, CR, and EOF would be expected, and should not be flagged. I can think of 3 - 4 ways to do it, but there may be a 'best' way in terms of simplicity and speed.
VS 2010 Working With A ASCII File
Apr 18, 2012This time I've to work with a file which inside is like this:url...I'd like to edit the highlighted part of text: "CustAssetSeen-803981731[NUL][STX][NUL][NUL][NUL]1"If the file was a normal text file I wouldn't have any problems, but I don't know how to work with this kind of file.
View 14 RepliesVS 2010 Save File, Need To Determine XP/7
Oct 29, 2010I need my app to determine between Win XP, Vista and Win 7 so It can deside which path to save txt file. I know this can be solved by running program as administrator and be able to save in whatever path you like but it would be good if the user didnt have to. Vista and win 7 suxx in this regard although win7 is great otherwise, use it myself.
Anyways would be nice if it was as simple as:
OS = humhum
and the if else
but probably not TT
VS 2010 Determine If A Directory / File Is A Symbolic Link?
Jun 18, 2011I'm doing some directory work and in this directory, some of the subdirectories are symbolic links to a different location. I need to be able to determine which directly is a symlink and process them differently.
View 1 Replies.net - Microsoft.VisualBasic.FileIO.TextFieldParser Changes ± Ascii 241 To ? Ascii 63?
Dec 11, 2010I 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.
Converting An ASCII 6-bit String To 8-Bit ASCII Characters?
May 9, 2011I'm working on decoding a NMEA sentence that is a compressed 8-bit string. I'm having a very hard time of wrapping my head around the bit manipulation needed to convert this string. If someone could get me started with this it would be great.
Here is the incomming string:
!AIVDM,1,1,,A,14eG;o@034o8sd<L9i:a;WF>062D,0*7D
and here is the expected output:
[code]...
File Access - When Open The File With Something Like Notepad, It Shows Random Ascii Chars?
Oct 19, 2011Years ago when coding with VB6 and earlier, I used a file open command to create, read, and write a file that made it easy to store useful information.I believe it was binary and you wrote/read the data to a specific line in the file. When you opened the file with something like notepad, it just showed random ascii chars. When I needed a line of data, I could specify what line to load it from.
View 2 RepliesVS 2010 Syntax For ASCII?
Aug 4, 2010Can someone give me a reference in using ASCII in VB2010. Is this code correct? "txtText.text = txtText.text & txtNewText & chr(13)".Im trying to accomplish here is, I have two text box. Once I entered a text in txtNewText the text is added in the other text box (txtText.text) without deleting the previous text. But i want the new text to be at the next line. That is why I use the "chr(13)" code.
View 5 RepliesVS 2010 : ASCII To Hex And Vice Versa?
Dec 18, 2011ASCII -> Hex would give
55 -> 35 35
Hex -> ASCII would give
U -> 55
how I should approach this?
VS 2010 Get Helt With Conversion (Hex/ASCII/string)?
Feb 18, 2011I have a code for converting characters to it's ASCII-value. I want to display this in a textBox, but when I stuff it into a ForLoop VB says that the Index is outside the bounds of the array... if I take the L-1 (see code below) I miss the first character...
Private Sub btnRecieve_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs
) Handles btnRecieve.Click
[code].....
What Is The 'whitespace' ASCII Or Unicode Character In System.Text.Encoding.ASCII.GetBytes (whitespace)
Nov 4, 2009I would like to pass a whitespace character by using the System.Text.Encoding.ASCII.GetBytes(" "), and System.Text.Encoding.Unicode.GetBytes(" ") , where " " is the whitespace Character required. What do I need to type (" ") to get a whitespace character passed.?
View 6 Replies.net - Convert A File To Ascii?
Aug 29, 2010This has been driving me crazy for two weeks! I just started learning Vb.net, so please forgive me if I make rookie mistakes. Basically, I would like to convert any type of file to Ascii code. An mp3, .wav, .avi etc. The most I was able to do is convert only the first character of the file to Ascii. Also, I'm not sure what would be the fastest method to do this. SteamReader, FileStream, or BinaryReader. Can anyone explain what method would be best? This is what I have so far:
[Code]...
RAW ASCII File Reader?
Oct 20, 2009looking for a simple example of opening and reading in a loop a raw ascii file 1 character at a time in vb.net?
View 8 RepliesAsp.net - Character Support - Translate Higher ASCII Characters To Lower ASCII Characters?
Aug 7, 2009So I have an ASP.Net (vb.net) application. It has a textbox and the user is pasting text from Microsoft Word into it. So things like the long dash (charcode 150) are coming through as input. Other examples would be the smart quotes or accented characters. In my app I'm encoding them in xml and passing that to the database as an xml parameter to a sql stored procedure. It gets inserted in the database just as the user entered it.
The problem is the app that reads this data doesn't like these characters. So I need to translate them into the lower ascii (7bit I think) character set. How do I do that? How do I determine what encoding they are in so I can do something like the following. And would just requesting the ASCII equivalent translate them intelligently or do I have to write some code for that?
Also maybe it might be easier to solve this problem in the web page to begin with. When you copy the selection of characters from Word it puts several formats in the clipboard. The straight text one is the one I want. Is there a way to have the html textbox get that text when the user pastes into it? Do I have to set the encoding of the web page somehow?
[Code]...
Convert ASCII Txt File To XML Within .NET, C# Or Javascript?
Aug 16, 2011I'm not exactly sure if this is the correct question to be asked but I will tell you what I am attempting. I have an ASCII txt file with product data in it. It does not have headers. I am looking for a way to convert this data into an XML file, however, I want it to parse through one of the txt fields to incorporate a look-up field and modify the data based on that field. Now I could use VB.NET, C# or Javascript. Example provided:
[Code]...
Save An ASCII-file With A Dll In Vista?
Nov 22, 2010I've created a simple dll with VB.NET for a web application, which opens a SaveDialog and write some ASCII-signs to a txt-file. It is working fine in XP. But when I test this dll in Vista I can not save this file:When I try to save in the directory "My own files" I can see this file in the file dialog, but I can not see this file in the explorer. In other directories I get a permission error.I've red, thatI can give e.g. admin-permission to allow writing a file, but I can give this permission only to an exe-file.
I tried some tests with the filestream like below
Dim fs As FileStream = New FileStream(strCSVDateiName, FileMode.Create, FileAccess.Write, FileShare.ReadWrite)
[code].....
Write ASCII Character Into A File?
Jan 6, 2009I want to write the ASCII code chr(192) into a file but I dont know am I right.Is the function like this chr(192) or something different because it doesn't write the character 192 in the file. Or can someone tell me how to write something into a file using ASCII codes?
View 8 RepliesASCII Text Formatting - TextBox To File?
Oct 22, 2010So I'm using a plain TextBox to display output from an ongoing background process. I've created a 'report string' that displays in my textbox like it has 3 columns; there's a VariableName, a VariableValue, and a VariableEffect (showing how applying that variable to the process affected it).In my textbox, any VariableValue entry that has 17 or greater characters gets 1 tabstop between Value and Effect; any entry 16 or less gets 2 tabstops, and any value 7 or less gets 3 tabstops which very neatly lines up the 3 columns.
View 5 RepliesDetermining If A File Is Text/ASCII Char Only?
Jan 26, 2012Simple question, what would be the optimum code in VB2010 to read in a text file and verify that:1) It is a text file, and2) There are no non-ASCII characters anywhereAnd conversely, we would want the code to provide a warning if the file is not a text file, or if the text file contains non-ASCII characters. [Note that LF, CR and EOF are expected to be in the text file, and should not be flagged as errors]
View 1 RepliesIO.File.ReadAllLines ANSI Characters (ASCII > 127)?
Feb 14, 2012I'm using IO.File.ReadAllLines(FileName) to read all lines from text file to array of strings at once. Problem is, text lines include ANSI characters above ASCII value 127 (Scandinavian letters e.g. " (Ascii 196), (Ascii 246) and (Ascii 233). Array is build up nicely, but all chars above ascii value 127 are not shown right. How can I use ANSI character set with .ReadAllLines to correct this problem? In VB6 with "Open Filename For Input As #1 / Line Input #1, txtLine" there wasn't any problem. OBS: This is already solved, found the answer by myself:
Dim myEncoding As Encoding = System.Text.Encoding.GetEncoding(1252) ' Windows-1252
Dim strLibrary As String() = IO.File.ReadAllLines(FileName, myEncoding)
Problem was to find right character set, which was Windows-1251 (ISO-8859-1)
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VS 2008 Reading Ascii Txt File Into Array And Writing It?
Jan 3, 2010I'm reading a txt file into an array and then writing a new file one line at a time. The reason i'm using array is that i'm searching for a few lines that i want to find and replace.
However in my file I have some ascii characters but they aren't read well. I read something about System.Text.Encoding.Default but I don't know how to implement it in my code.
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Counting Columns In ASCII Text File To Enter Data Into An Array
Nov 21, 2009I am using visual basic 2008 and trying to create an application to plot data from text files. I have several data files of various sizes. They have an unknown number of rows and either 2 or 4 columns.I need to put the data into 2 dimensional array, so value(,) becomes either value(lines,3) or value(lines,1) depending on the number of columns.My program needs to be able to count how many columns there are, and redim value(,) appropriately.I have written a piece of code to count the number of lines (rows) in the file using 'While not (EOF(1)) ....' but I'm stuck on how to count the number of columns.I could ask the user to indicate how many columns there are before the file is read, but I would prefer the program to detect the number automatically.
View 1 RepliesVS 2005 Read A Text File, Insert A Line Of Ascii Commands Between?
Jun 16, 2009it is a normal text file, I would read it then , (This part I got it) print it out to a reciept printer, send insert ascii code to force the printer to cut the recipt.
View 2 RepliesVS 2010 Determine Type In Collection In DataSource?
Sep 7, 2010I am customizing a DataGridView control. The DataGridView is supposed to be bound to a collection of some type (be it a List(Of T) or ArrayList or whatever), and the idea is that one can easily determine (at design-time in this case) which properties of the type have to be shown in the grid and which column header name they should get. One can do this using an attribute. For example, if I have a class Person with Name, Age and HairColor and I don't want to show the HairColor property, and want to show the Name property as 'Person', I would use:
vb.net
Public Class Person
<Grid.GridOptions(displayName:="Person", visible:=True)> _
Public Property Name As String
[code]....
I do this during run-time by simply looping through the properties of the bound type (in this case Person), retrieving the GridOptions attribute (if any) and checking the values provided. This works just fine except for one thing: I'm not really sure how to determine the type in the databound collection...
At the moment, I cast the DataSource property to an IList and retrieve the type of the first instance in that list (if any). If there isn't a first instance (the list is empty) then I don't know how to get the type... Often I know that it will be impossible to know the type. If someone is binding an ArrayList for example, then it's impossible to know what kind of items he's going to put in that ArrayList. Even the normal DataGridView cannot show any columns when databound to an empty ArrayList. However, the framework's DataGridView does show the columns when bound to, for example, an empty List(Of Person), or a Person array.
I'm pretty sure that casting the DataSource to an IList is not the correct way as all information about the type of items in that list is then lost. But I'm not sure what else to cast it to... ITypedList? IBindingList? I even considered List(Of T) because that's all I am going to be using, but besides the fact that the grid would then obviously only work for a List(Of T) I still don't know how to do this... I don't know 'T' so I can't cast it to a List(Of T)...
VS 2010 PictureBox To Determine Items In Game?
Jan 21, 2012[PictureBox] [PictureBox] [PictureBox] [PictureBox] [PictureBox].
All of them have no images. Now. I want to make an item editor for the game I'm playing. To edit the items, You have to place an ini file in the game's directory with the template below:
Quote:
[ItemSet1]
SetName=Set1
RecItem1=1028
[Code]...
And untill 6 - what after the = is the item ID. Each item has a unique ID for it (I have a list containg each item name and their ID).
Now what I want to do is: I have a listview on the left with each character in the game Image and Text. I also have a listview on the bottom with all the imgaes of each item and each text for the item.
I want to make it so when the user double clicks an item from the listview, It will automatically add it to the first picturebox (If it's empty). He can choose any item to add to one of the 6 picturebox's, When it fills one after one. When all the picturebox's are full, nothing will happen.
Now what I want is: How can I determine which "item" the user chose and according to that assign the item's picture to the picturebox, and then make a new ini file to set picturebox1's image's ID to RecItem1, picturebox2's image's ID to RecItem2 - and so on.
Determine ETA Of A File Transfer By TCP?
Apr 26, 2010I wrote some code to share files throughout my network. The thing is that i don't understand how to determine how much the client has sent already and how much is left. I have posted my code below so you guys can see what I'm talking about.[code]...
View 1 RepliesDetermine If A Certain File Exists On The Add?
Aug 9, 2010I'm using the coding below to determin if a certain file exists on the hdd. However there is an error on this line: If FileExists("C:myfile.txt"))="False" then msgbox "False"
it gives me the following error message:End of statement expected.
what am I doing wrong?
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Determine If File Type Is A Bmp?
Apr 28, 2012I want to scan a directory and see what files are NOT bmp image files. As the file extension can lie I need to interrogate the file itself. I found some code here [url]...?ID=112 that does exactly this however it was written for VB5 and is 13 years out of date! I tried compiling it however VB 2010 baulked and I don't have the expertise to make it work.
View 1 RepliesDetermine If Row In File Is Date
Jun 13, 2011When scanning a data file of this kind of form:
21/02/11 11:00:23, true, false
22/02/11 02:03:43 AM, true, false
22/03/11, false, false
2011-05-21T12:30:20, true, true
The 2nd and 3rd row are not important. How can you, by scanning a file, determine if a row comprises of dates, particularly when they have inconsistent formats? In the example above, for instance:
1) 1st line is date and time
2) 2nd line is date and time but also AM/PM
3) 3rd line is only date
4) 4th line is GMT format.
I'm not requesting code, but perhaps an algorithm or some guidelines on how to achieve this.