Streamread Multiple Files From Listbox?
Mar 11, 2010
I'm writing a program to automatically setup some long files for use with streamwriting for another app. Basically all it does is add "sw.WriteLine("" to the beginning of every line and "")" to the end of every line.You gather a list of files which is entered into a listbox, the problem I'm having is I don't quite know how to have the streamreader read multiple files. I tried to only way I could think of an got the following error:
Object reference not set to an instance of an object.
It works but I don't want to keep getting that error. Here's the code:
Dim FolderBrowserDialog1 As New FolderBrowserDialog
[code].....
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Mar 16, 2009
I wish to choose folder in FoderBrowserDialog and get all filepaths from this folder added with few different file extensions in my listBox.
Have someone some constructing proposal ?
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Mar 15, 2009
When I select multiple paths from openFileDialog in my listBox control enter only one path by try. This is probably because that I use OpenFileDialog.FileName. I wish to load all selected files in one time...but in this case Add(OpenFileDialog.FileNames) give me the value stringArray in same listBox. I suppose that maybe exict peace of code through ItemCollection which give me opportunity that I import all file path in one try in listBox control. It was interesting because how I may implementing matrix between openFileDialog and listBox..
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Jun 11, 2011
1. I get a list of excel files from a dir into a list box and search for number by select each files at once. I want to select multiple files at once and search them one by one.May be using checklistbox.
2. The output is shown in a new window (labels) with result from that particular file. If multiple files are selected that the output should show result from all files in different labels.
3. Excel program stays open in memory after closing my application.
4. Also I cant get the app to display message "maskedtextbox1.text" not found in the sheet.[code]
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Dec 25, 2010
I get a list of excel files from a dir into a list box and search for a string/number by selecting each files at once. I want to select multiple files at once and search them one by one.May be using checklistbox.
2. The output is shown in a new window (in labels) with result from that particular file. If multiple files are selected than the output should show result from all files in different labels.
3. Excel program stays open in memory after closing my application.
4. Also I cant get the app to display message "maskedtextbox1.text" not found in the sheet. If I do after line 30 Else messagebox.show "String not found", it goes into loop or displays the message even if the string exists in the excel file.
[Code]...
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Jan 19, 2011
I created a Right-Click Menu option for files. When the user clicks the menu option it will copy all of the file paths to the clipboard.The following function I have will retrieve all of the filepaths to the clipboard. The problem lies in adding the filepaths to the listbox. If I turn single instance application off the result is multiple instance of the application for each filepath. Say for example I selected 2 files and clicked my right-click menu, I wind up with 2 instance of my exe with each file path added to the listbox, 1 in one listbox, the other file path in the second instance listbox.
Public Sub getthepath()
Try
Dim thefilepath As String
[code]....
Is there a way to loop through each file path from the clipboard and add them to the listbox through a loop?Several times I have tried different ideas I had that I thought would do it and I got odd results but never a good result.
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Mar 2, 2010
I knew I should have wrote this software in VB 6. How do I use IO.StreamRead to write and read a user input variable into a textbox?
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Dec 8, 2009
I would like to streamread a .txt file to a textbox that i have on my form, how would i go about doin that..my file is located at F:Jingle.txt
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Mar 11, 2011
My knowledge of VB.net is limited (only have been reading from the book)
so what i need to do for my project is to populate a listbox with files from a certain directory (C:folder)
then once it's populated, i can select an item and it will open up in a rich text box.
This is what i have so far for the active directory > list box:
Dim di As New IO.DirectoryInfo("C:Documents and SettingsuserDesktopfolder")
Dim diar1 As IO.FileInfo() = di.GetFiles()
Dim dra As IO.FileInfo
[Code]....
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Jun 16, 2010
I have a question here.. pls kindly advise.I need to design a simple form that allow user to choose the value from Listbox A to Listbox B. For example, in Listbox A, have value A, value B and value C, then user can choose (or highlight value B and value C) and copy into the listbox B.
May i know how can i do this in vb.net? Any reference link?
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Jan 26, 2009
I am having problems with copying from one listbox to another and keeping the paths of the files in the listbox's. At the moment i have two listbox's, listbox1 shows the list of files without the directory paths showing. Listbox2 is used to add items from listbox1 which work ok but what i need is to be able to preserve the directory paths to each file. how to do this and have searched high and low for a solution without any luck.
I have worked out one way of doing it but i think there is a better way of doing it as the reverse does not seem to work. So basicly i want listbox1 to list the files without the paths and pass it on to listbox2 so that the files can be copied to temp directory as they are being add to listbox2.
Below is my
[CODE]...................
Routine to add items from listbox1 to listbox2: I have created another listbox3 (which is in bold), which is hidded under listbox1 and holds all the paths to the files and is use to copy the files from there original directory to a new directory.
[CODE]...................
Routine to add items back to listbox1 and remove them from listbox2. I have created another listbox4 which is hidden under listbox2 which i was trying add the paths from listbox3.
[CODE]...................
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Jun 18, 2012
I have a website that has highly granulised access and hence requires many web.config files. The problem is I would like to trim the menu so that only certain users will have access to certain folders. I have enabled trimming and setup roles in the sitemap, however when I access the page the menu is not show, as I am authorized to view the default page which is not in a subfolder. When I type the url of a page in sub folder's I have access.
How should I handle this:
A site map for each web.config file - don't know how this will work Removing the sub web.config file to only use a single one
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Dec 10, 2009
I know this is out there and probably illogical but I was wondering if it was possible to take multiple picture files and compact them into one file.... and then retrieve them from the program later? Way to combine any amount of image files into one file
Module Module1
Sub combine()
Dim img1 As New Bitmap("i1.jpg")
[CODE]...
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Mar 30, 2010
I'm developing an application to help law enforcement retrieve and analyze logs and other files left by the use of Pidgin (a multi-protocol messenger client). Right now I'm nearly done, but I want to add the ability to search chat logs for user-defined words or phrases and I don't even know where to begin.
Chat logs are stored as html documents in a folder/sub-folder/sub-folder/sub-folder fashion, where each sub-folder can have dozens of sub-folders inside of it, and the final sub-folder can have dozens if not hundreds of chat logs. If anybody could point me in the right direction, I'd be very grateful.
(Also, this is the first program I've written since about 2005, and I'm essentially teaching myself VB as I go. If you'd like to see what I've cobbled together so far, you can find the program here.)
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Apr 16, 2009
I am working on getting files from my computer into a listbox which i have working.. but i want it to show just the filename not the directory and the ext. also i want it to only show .txt files?here is my code.
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim sFiles() As String
Dim i As Integer[code].....
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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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Jun 9, 2011
I am using asp.net with vb.net. I have created 2 listboxes; lstselect and lstroles. List boxes lstselect contains all of the available roles that can be added into lstroles. How do I take the roles that have been added into lstroles and make them into a parameter to pulled into my database when the stored procedure runs?
Here is the code for how my list boxes share the roles:
Protected Sub btnRight_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnRight.Click
If lstselect.SelectedIndex <> -1 Then
[Code]....
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Sep 18, 2011
I have 2 listboxes, listbox1 holds File names, listbox2 holds fullpath of the files(listbox2 is hidden just to keep things looking tidy).
What i want to do is (using multiselection) is select files in listbox1 and have listbox2 have the same files(indexes) selected as well.
i am rather new to this but i have tried several ways but listbox2 only selects the first selected file from listbox1.I am using vs2010 visual basic & wpf?
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Jan 5, 2010
i have to add a student to my listbox but with many informations for example i have many textboxs (textbox for the age of the student, textbox for the name of the student & ECT) how can i had one student with all these infromation(age, name, major) in the load form also when i click on the student in listbox it shows age in the textbox1, name in textbox2 & ECT add student with multiple information in listbox [form load], and when i click on the student in the listbox it shows the students infromation on each textbox like textbox1 age, textbox2 name it's all with visual basic language.
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Jul 12, 2011
I am able to only move single items from one listbox to another with this code. I tried with both MultiSimple & MultiExtended SelectionMode.
How do I select multiple items and then move them?
Private Sub cmdAdd_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs
[code]......
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Aug 10, 2011
(Visual Basic 2010)I'm trying to add multiple item to a listbox from a text file. The program will show help for computer tasks.
Textfile:
Add new event to calender#Sync calender to phone#Print something from the internet
Code:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
UpdateTopicList()
End Sub
[code]....
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Nov 13, 2009
I am trying to get the text added from a combo box to a list box equal a certain color, but I want to be able to have multiple combo boxes adding to one listbox.[code]...
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May 7, 2010
I am trying to delete multiple selected entries from a listbox. When I run the code I have now, instead of deleting all of the items that are highlighted, it deleted all the items in the listbox.[code]
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Mar 21, 2010
I have a program in which I need the user to be able to import multiple image filenames into a listbox. Here is my
vb.net
Private Sub ImagesToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ImagesToolStripMenuItem.Click
Dim import As New OpenFileDialog
[Code].....
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Jun 22, 2010
I'm having a little trouble deleting multiple lines for a listbox. I know how to remove a single line, which is this: [code]If I change the value for IndexOf to SelectedItems, I get an error stating that -1 is not valid for index.I am guessing this needs to be done using an integer array and a for each but I don't know how to do that. I really never bothered to look much into arrays.
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Feb 19, 2010
So I want to click on different things in a listbox and somethings have a picture and some dont. I want the things without a picture to all show the same thing. I've tried this:
Code:
If ListBox1.SelectedItem = object1 Then
PictureBox1.ImageLocation = object1picture
Else
[CODE]...
This only works for object2 and I know why, but I dont know the correct way to make it work for multiple objects.
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Oct 19, 2011
how to make a listbox have multiple columns and for certain columns to be editable.
I thought about using a DataGridView, but I am not linking this to any kind of database.
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Apr 3, 2010
I am designing a degree audit program for school, and have a listbox where all the classes needed are contained. I have a separate form for each year (Freshman, sophomore, etc.), which also contain listboxes which are empty. The idea is to add the selected class from the first listbox into the empty listbox in the appropriate year form. However, to do this I would like to have the same listbox (the first one with all the classes) appear on each form, but still reflect changes made to it from other listboxes (classes transferred out of it).
To do this, would I need to create a listbox with global properties? Or would it be better to create a global function containing all the classes and have its contents called to the appropriate listbox?
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Jan 26, 2010
I am confused with the removing multiple selection from listbox ...been searching over internet .. but still I do not get the right approach or simply say it doesn't work. I tried to loop through the list without removing any of the item from listbox. I printed the item.selected and it showed that only the first one I selected printed true, others were not ...
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May 13, 2010
I have been trying to print multiple pages from a listbox. This is the code I have been trying to get to work. It prints the entire contents of listbox6, which is good but it only prints on one page and the text overlaps once it starts to print from the top of the page again.
Code:
Private Sub PrintDocument3_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument3.PrintPage
Dim lpp As Integer
Dim lno As Integer
[code]....
All I need to do is print the entire contents of listbox6 whether it has 1 page of data or 19 pages of data.
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