Working With Text Files And Listview?
Feb 20, 2009
I want to be able to grab a specific file from a specified directory, read the lines and display them in a text box. What I want to do, is search for multiple text files in a specified directory, display each name in a Listview and, as I click on them, their info is displayed in the text box below.
what I have so far:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
Also, when I closed the program and re opened it, it duplicated all of the text files in the list, but did not duplicate them in the directory. Not that I want it to, it just seems odd.
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Jun 24, 2011
I'm a beginner so i'm just trying my hand. There might be easier ways to do this but i want to learn how to manipulate text files properly.
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Feb 20, 2009
I'm currently using this
[Code]....
To grab a specific file from a specified directory, read the lines and display them in a text box. What I want to do, is search for multiple text files in a specified directory, display each name in a Listview and, as I click on them, their info is displayed in the text box below.
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Aug 18, 2011
I'm trying to copy multiple excel source files into one excel file. My current code is working only for 3 source files..If more than 3 files are there, it doesn't copy the data but creates blank work sheet in the output excel file. Lets say I have a source folder with 5 excel files. Each workbook contains one worksheet with data. It copies upto 3 worksheets along with data into output excel file.
Lets say excel1 contains A as work sheet, excel2 contains B as work sheet ,excel3 contains C as work sheet ,excel4 contains D as work sheet ,excel5 contains E as work sheet .Now my output excel file should look like..OutputExcel with A, B, C, D, E along with respective data.But my current code is giving output as A,B,C worksheets along with respective data but its creating blank sheet1,sheet2 in place of D & E.
SSIS Script Task Vb.Net Code:
Public
Sub Main()
Dim filePath
As
String =
[code].....
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Apr 20, 2009
Im designing a program that will read from various text files (preferably RTF files) and then put them into the RTF box in the program when a button is clicked.
Here is the portion of my code that i am referring to.
Try
Dim fileText As String = My.Computer.FileSystem.ReadAllText("c:\" & selectedHero & ".rtf")
infoDisplay.AppendText(fileText)
infoDisplay.Rtf.Format()
Catch
MsgBox("Selected Hero currently has no File with us.")
End Try
Now heres the problem. In the file i have a few pictures and its formatted and what not. I thought since its a RTF file and the Box is RTF it would auto format.... but anyways. It appears like this in the RTF Box.
{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fswiss\fcharset0 Arial;}}
{\*\generator Msftedit 5.41.15.1507;}\viewkind4\uc1\pard\f0\fs20{\object\objemb{\*\objclass Paint.Picture}\objw3000\objh3000{\*\objdata
[CODE]...
Ok so im not sure how i can read from a RTF file and put it in the RTF box with the right format....Ive been searching around for a while.
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Jun 20, 2011
On a image file (PDF), the OCR has recognised the picture and text. However on Visual Basics, how do you search for a text on this image file? The primary goal is to allow a text search (i.e POxxxxx) on all the image files (PDFs). The returns of the search will be the assciated image files where the text (i.e POxxxxx) is found on.
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Sep 23, 2011
I have a problem with DataPager with ListView, I am using ASP.NET with VB.NET. I have searched for the answer, but I just can't seem to get it to work. Whenever I binded the data, the front page was okay, tried second page, still the same data, etc. Then I tried rebinding the data each time pager was changed, the listview dissapeared.
[Code]...
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Apr 26, 2010
I'm trying to sort a ListView and have it working.. but was trying something.. and was curious why it doesn't appear to work..
In a gridview, the sorting event you can do a
With CType(sender, GridView)
.DataSource = Os
.DataBind()
End With
[Code].....
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Feb 25, 2010
I am creating a Pizza Order program as part of my coursework college. why something isn't working.
Quote:
lblTotal.Text = Val(Form2.lblPizzaTotal.Text) + Val(Form3.lblDrinksTotal.Text)
The code above is what I am using to add the Value of Label 1 (Pizza Total) and Label 2 (Drinks Total), however it seems that in the final total it doesn't appear to add the value of Label 2.
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Dec 1, 2011
ive developed my app and am im trying to improve its use ability. Ive created a dvd management app for myself and i have a function that retrieves all the data for all the movies displayed in my listview. It works fine but the interface hangs for the entire time.Ive decided to use a background worker so i can browse other movies with all the data is being fetched.Im having silly problems with getting the index value for my listview when im using the .DoWork()
ive had these errors:
1. Cross-thread operation not valid: Control 'ListView1' accessed from a thread other than the thread it was created on.
2. nvalidArgument=Value of '1' is not valid for 'index'. Parameter name: index
the function works a dream whenvnot being called inside the doWork()
'New Objects
Dim fetch As New Create
Dim download As New Download
Dim parse As New Parse
[code]....
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Dec 23, 2009
I have two forms frmA, frmB. I have a listview on frmA with a couple items with tags. In the listviews Itemactivate event I get the FocusedItem's tag and open frmB. Everything works fine until I close frmB and come back to frmA. The original item is still selected but the Itemactivate no longer opens frmB. I can step right into the frmB.Show line on frmA, it's just that frmB nevers shows.
Private Sub ListView1_ItemActivate(...) Handles ListView1.ItemActivate
Select Case ListView1.FocusedItem.Tag
Case "showfrmB"
[code]....
I've tried adding Hides, Activates, etc. with no luck.
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May 6, 2008
I trying to do a drag drop from a listview in one form to another instance of the same form (same application running twice).I have it working with single items selections, but I want to make it work with multiple selections. 289508(VS.71).aspxThis works if I drag/drop onto itself (the same form), which I don't want, but I need it to work across instances.During debugging it seems the code DragDrop code just quits at the line during the drop:Dim myItems() As ListViewItem = e.Data.GetData("System.Windows.Forms.ListViewItem()")Any ideas what is wrong or how to drag/drop multiple items in a listview between apps?
here's my code:
Private Sub ListView1_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles ListView1.DragDrop
[code]....
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Jul 28, 2009
I currently have 2 forms, one with a listview and the other with a button coded to add an item to the listview. I've just discovered though that any command, no matter how right the syntax, to a form from a different form doesn't work. The only command that does work is Form2.Show. Otherwise nothing happens. There are no errors whatsoever. All the items in each form are all set to public.
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Mar 11, 2010
I have a listview attached to a dbase app I am working on, the last column has a price value and I would like to create a total value for this column in a label or text box below the listview control.I was searching back the old posts looking for some pointers or a code snippet that would do this, but was unable to find anything. i'm using vb 2008.
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Jun 27, 2012
I have inherited a rather large project consisting of an application written in VB6 and several DLL's and ActiveX controls written in VB6, VB.NET 1.1 and VB.NET 2. I want to change one of the settings for one of the DLL's written in VB.NET 2 that is in its application.dll.config file, but it seems to be having no effect.My main VB6 application (I will call it Alpha) has a configuration file (Alpha.exe.cnfig) which contains settings used by my VB.NET 1.1 DLL (which I will call Bravo). After calling Bravo, Alpha calls Charlie (my VB.NET 2 DLL). However, even though I have changed the application settings in Charlie.dll.config in the subdirectory where the DLL lives, it has no effect. I have tried putting Charlie's settings in Alpha's config file but this causes Bravo to fail with an automation error (which I think is because the format of the config files changed from .NET 1.1 and .NET 2).[code]If I try putting the applicationSettings section under directly beneath the appSettings section (i.e. as another child element of the configuration element) in Alpha.exe.config then Bravo.dll fails.
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Dec 5, 2011
I have a resx file called Resources1.resx and this file is location in the class library Test.WebControls, this is how i am trying to get the values from the resx file using vb.net.
[Code]...
But I keep getting an error "Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "Resource1.resx.resources" was correctly embedded or linked into assembly "Test.WebControls" at compile time, or that all the satellite assemblies required are loadable and fully signed." The resx file is embedded as resource as well.
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Apr 20, 2009
I need to keep the original Ratio of the Width to Height of an image file within a picturebox, basically I will have to adjuest either the width or the Hidth of it. Does anyone have a suggestion on how I do this? I was thinking I would have to get the Width and Height attributes of the Picture file with an integer and use a little bit of math to determine the approprate size of the picturebox object.
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Oct 26, 2010
I need to open a tiff file in vb.net then i want to know if is a multi page tiff. If so, save each page in a separate tiff.
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Sep 27, 2009
I am trying to change the file names of all the files in a directory based on content of the file. So I am opening the file, reading the content, storing the new file name in a variable and then trying to change the name of the file. This is not working because when I start this loop I am opening the file and viewing it so it won't allow me to change while the file is in use. Should I store the old and new file names in an array and do the renames after the For Next Loop is complete?
[Code]...
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Sep 14, 2011
I am working with a project where i am opening up excel worksheets, sending data to them and then printing the worksheet. I have been working specifically with Office 2010 and have everything working exactly how i want it to work. Recently i have been asked to make the same type of thing work for users using older versions of office.
So as a test i took one of the worksheets opened it in 2010 and saved it as a 2003 document. I went into the code switched the .xlsx over to .xls and gave it a shot. It appears that the code opens the correct file. Sends all of the data out to the worksheet and then the program bugs out.
[Code]...
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Mar 25, 2010
i found this code ihere in this forum and i'm trying to do the reverse. kindly, any one can help me to do the reverse of this function
Call AppendFile("c:1.txt", "C:3.txt")
Call AppendFile("c:2.ini", "C:3.txt")
Private Sub AppendFile(ByVal strSource As String, ByVal strDest As String)
[code]....
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Jan 4, 2012
I have an open dialog box which allows me to add files to a listview (only the filename and icon)[code]I am trying to figure out (testing with a messagebox) although the listview only shows the filename, can I actually get the full path to that file, as it is (highlighted in red) I can only get the full path to my debug folder plus the filename.I am also trying to seperate with a semicolon if I have multiples.
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Aug 12, 2011
I am trying to allow the user to download an excel file, by using
Response.Redirect(
"http://localhost/myapp/download_folder/example excel file_july.xls")
in page load of an ASP.net page but on the client side i a m getting the following screen in firefox 3.5 You can observe that the file name and file type are shown as empty fields. The ok and cancel buttons are not doing anything.This happens only in firefox 3.5, it is working in firefox later versions and other browsers.I tried clearing the Response with Response.Clear(), using Response.BinaryWrite with the file byte array and even tried to open the file with the javascript by calling window.open(url).
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May 3, 2009
I'm very new to VB, so I was in the very first tutorial, it has me play a sound file. So I put that in, ran it, and it came back with an error saying "system cannot find this file." I guess I'm not terribly surprised, since the file they gave has no C: or anything like that. What I want to do now is play my very own sound file, but I don't want to go through the whole C:Documents and Settings... thing, so is there a way I can put my own sound file in the project directory and say something like %ProjectDir%/sounds/mysound.wav?
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Feb 9, 2012
I am currently working on a project, which requires to download files from the internet and copy them to certain directory's... I've done the downloading part but I can't seem to get the directory working. The directory is "special" E.G. Appdata Program Files etc., and well when I tried just using %appdata% it seemed to create a new directory NAMED %appdata% rather than actually goto appdata...
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Sep 29, 2011
I created a program that processes files on a nightly bases for the company I work for. These files are used on a daily basis and very often a file is left open by a user and it causes my program to error out and not finish running. My program needs delete access to these files.
I need 1 of 2 solutions.
1. I need somehow add a check to see if a file is in use and if it is just skip it.
2. I need to make my program automatically force close the files on the users. (note that these are shared by one computer, I can put the program on the computer that the files reside so that it has access to close them out.)
how to add a check for if a file is in use or not?
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Jul 17, 2009
i have an old VB6 system that generates plain text files. When this old system writes "A" into the file, it writes (hex) "41". For an "ä" (a-umlaut, special gernam character), it writes (hex) "E4".
Now i have to process files like this in VB.Net. when i open such a file in the IDE, it displays correctly "ä" (But not always!). To see what i mean, please open a notepad and create a new file "ae.txt" with content: äöü. Now your file contains exactly 3 bytes: (hex) E4 F6 FC.
But when i write code like
Dim strTest As String
strTest = File.ReadAllText("ae.txt")
Debug.Print(InStr(strTest, "ä"))
i get 0 - so i cannot find back the "ä" - what do i need to do, to find it? And 2) for compatibility reasons, i have also to be able to create such files. How to do that? Seems the different encoding types do not work as i think.
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Dec 14, 2009
I am trying to create a program which will read the files that exist in a directory, and then write in a text file the specific information (full file name, date created)i have found several code in the site but i cant make it work, the machine i am running the code is XP and i am using VB2008.The code i have found is the following:
Imports System.IO
Imports System.String
[code].....
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Mar 29, 2009
im trying to split a folder of text files into several folders of no more then 12 files a piece, we have wedding photos 1-144 which would like to have um split into folders of 1-12,13-25 etc, found something that might work but it does it by files size
Code:
Imports System.IO
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
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Nov 10, 2009
I'm having a little trouble trying figure out a way to filter specific file formats to only show in a Listview. For example I only want .txt files to show in a Listview and no other file formats. Is this achievable?I've had a look around the net but not found anything relevant to what I am trying to achieve.
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