Combobox Populated From Text File?
Apr 6, 2012
I'm trying to get a combobox to be automatically filled from a text file and have it editable by the user.
So far, when the program is running I can add new items and they appear in the text file and combobox but when I restart the program the combobox list is empty even though the text file has stuff in it.
Dim w As New IO.StreamWriter("z:url.list.txt")
Dim linecounter As Integer
For linecounter = 0 To ComboBox1.Items.Count - 1
[Code].....
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Mar 14, 2012
In my program i have a listbox populated with data from a sequential text file. [code] Mary, Murphy, 16, 893782, Douglas etc.From here the user selects the person they wish to see displayed in the datagrid with all all other relevant details from the text file displaying. Problem is I cannot figure out how to refer to the selected person and then get it displaying on its own in the datagrid. [code]
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Jun 26, 2010
how do i read the first line of text of every text file in a folder and populated in a list box. Also how do I get it to show the file name in a text box when you select an item in the listbox
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Nov 25, 2009
I am having a strang problem with button event handlers that I am creating at runtime.Actually if I set the form as startup form everything is working fine but when I set the main apllication form as startup form the events for buttons created at runtime are not firing.I am posting the code so that you can have a better look and see whts wrong?I have two classes under spotlight here "Class1" and "Grid"I am creating an instance of grid in class 1 and in a sub in grid I am creating buttons dynamically as follows and adding event handlers
For i As Integer = lIndex To uIndex
Dim btn As New Button
btn.Name = ds.Tables(tblName).Rows(i)(btnName).ToString
[code]....
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Apr 9, 2009
I am adding items to a combobox through user entry and need to save them, so when I close the application down, they will reappear when again opened.
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Nov 14, 2011
I'm using this line to populate my combobox with all files in my application path:
ComboBox1.Items.AddRange(IO.Directory.GetFiles(Application.StartupPath))This works fine, however it displays the path as well, and I only want to display the files with extension .txt
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Apr 15, 2010
I'm using visual basic 2008 express I have 1 combobox which is populated from a coloum from my database, when I select a value from the combobox I wish to populate several textboxes with data from the row selected. I have created a dataset. How can I do this? Is there a tutorial I can read anywhere
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Nov 8, 2010
I have seen something like the following in many software. Combo box populated and displayed with multiple columns (for example stock code, stock description). But now I am only able to populate with stock code. May I know how to achieve this? I know it can be done by calling a form (And I can do whatever coding in this form) out when clicking on the combo box. But I am looking for better solution, or is it possible to populate the whole datagrid into the combo box as source instead of only the data.
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Jan 27, 2011
When my form loads, before the ComboBox has been populated and selected this Event (SelectedIndexChanged) gets triggered. How can I prevent the code insides this Event from Executing before form has completely loaded? I tried testing for .SelectedIndex but it returns 0.
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Jan 4, 2010
I have one combobox, two buttons (Add and View) and listbox. When I click button Add text from combobox is added to text file. This is code for Add button:
[Code]...
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Feb 16, 2010
In a combobox populated by a DataTable I am having two issues!The SelectedIndex property will not set 1. Either by integer 2. Or by FindString
[code]...
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Aug 11, 2011
So basically i have the need to only process a command when the text box is populated, if the textbox is not populated i want it to throw a simple msgbox
look at my code:
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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Apr 17, 2010
I have a form (formA) which contains a tabcontrol with two tab pages. Each tabpage has 6 textboxes and 3 comboboxes. In addition to the tabcontrol there is a separate combobox and textbox. The question I have, is how to best ensure that all these fields are populated with text and or numbers? From this a start button is pressed which generates another form (formB) which requires the fields from (formA). If for instance 1 or more fields is not populated, then generate a message to show the user which 'box' requires data. Only when all fields are populated will this enable the 'start' button.
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Dec 17, 2010
I have a list view populated by a database. The columns for each record are First, Last and EMPID. When I look at the list view on the form at runtime, I can see some/all of the First name and then below that may be part of the Last and some ... periods and no EMPID. When I hover over the record, I can see the EMPID. Is there a way to have all of the information in the record visible in the list view?
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Jan 31, 2010
I am running Visual Basic Express 2008. I realize this forum category is for VB6 or earlier, so please kindly inform me of where to post this if this is incorrect.This is actually the first forum I have joined ever because I can't figure it out on my own and can't find the code off the website. I am almost done, i I have a ComboBox and 4 text boxes. At the bottom it has CLEAR, UNDO CLEAR, COPY ALL TO CLIPBOARD & COPY SOLUTION which does so for the ComboBox and all 4 text boxes. The format like this (CORP is the ComboBox):
CORP - Workstation - Won't power on - HOSTNAME/USERNAME
PROBLEM/REQUEST:
started happening today
[code]....
And then due to the ticket entry system we use, I have a separate COPY SOLUTION button and that works just fine, but that would read as:
Dispatching tech
Now here's where I'm caught up on, I need to take a textbox where I don't use it because I don't have a use for it dependent on the issue of the person I'm working with and it'll look like this:
CORP - Windows - Password Reset - USERNAME
But, this is where I'm getting stuck, it keeps putting stuff like:
CORP - Windows - Password Reset - /USERNAME
or
- Windows - Password Reset - /USERNAME
[code]....
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Feb 7, 2009
i wan to display the text from combobox into the textbox and clear the combobox text when click on the button.But when i select another text from the combobox and click the button, the textbox display and overwrite the previous text.How can i do so that when click, textbox display text from combobox and clear combobox text. Then click again, display the new text at 2nd line of the textbox without deleting the previous text?
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May 8, 2009
After I have retrieved my data from my access database, I would like to insert text into one of the columns in a new row. Is this possible? Here's a snipit of my code I use to retrieve the data from access:
If con.State = ConnectionState.Closed Then con.Open()
sdr = cmd.ExecuteReader()
rtime = Now()
[Code]....
It's the rtotal_time value that I need to insert into a new row, in and cell, the datagrid.
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Jul 25, 2011
I am trying to read a text file into a combobox but for some reason it just wont load:
Dim path As String = "C:UsersLukeDocumentsWhispaServerFiles est.txt"
Dim StringArrayOfBuyers() As String = File.ReadAllLines(path)
Dim clientArray(StringArrayOfBuyers.Length - 1)() As String
[Code]....
So the code is loading the text file fine, it just wont display the first split in the Combobox
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Jun 16, 2011
I got a problem how can i populate the combo box with a list on text file separated by comma. ex: in text file "aaa,1". i want to put the aaa in combobox when selected in aaa in combo box the 1 will go to textbox1.text is this possible?
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May 15, 2009
how to do this, but I'm ignorant so I forgot, how to load lined text from a .txt file into a combobox?
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Mar 31, 2012
I have created a simple conversion program, I have two comboBoxes that are populated by a text file called 'data.txt'. It all works perfectly apart from when i have the squared units in it, instead of getting the '�' symbol that is in the text file, i get a diamond shape with a question mark inside.
I would think that you must have to put some sort of code before the squared symbol in the text file, but I cannot figure it out.
HTML
Public Sub DataLoad(ByVal Switch As String)
Dim tfLines() As String = System.IO.File.ReadAllLines("data.txt") ' File to load.
For Each line As String In tfLines ' Load and read all lines in file.
[Code]....
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Apr 10, 2011
i need help with stream writer, i can get it read lines and stuff like that but now i need Streamwriter to write to a colour.txt file (already populated with data) and insert a line that isn't already in the file, into alph order eg combobox reads and displays list from txt file.
their is a colour thats isn't in the text file, so i would like it to take the colour from the combobox that was typed in by the user and place it into the colour.txt file in alphabetical order (these are car colours so their are 100's and 1000's per manufacturer, its not as basic as i want red blue black lol) i was able to find loads of data about streamreader but not so much about stream writer
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Nov 3, 2009
I have a text file:
Name1, Address1, Phone1
Name2, Address2, Phone2
Name3, Address3, Phone3
etc......
I want to put the Name1, Name2, Name3 in a combobox....When user selects Name1, Label1 shows Address1, Label2 shows Phone1.....etc.....
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Jan 24, 2012
I have a text file in which there is a list which is composed as follows:
3236, Alberto
5894, Peter
7894: Alonso
and so on ...
What I want is loaded into a listbox the numbers to the first semicolon and load the combobox names.
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Feb 6, 2011
Is it possible to load the content of a text file (.txt) into a listbox or combobox if the text file is located in a webpage?let's suppose that the file is located at url...how would i load the content of the text file into my listbox/combobox?
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Jun 4, 2010
I have a program that needs to display a playlist of songs, for a band performing someplace, from a .txt file. The songs in the file are listed as follows:
All You Need is Love-Beatles
Rock
4.25
[code]....
The first line is the song's title and group name. The second is the songs genre. The third line is the songs length, 4.25 is 4 minutes and 25 seconds.upon clicking a button, I need to display a playlist from this .txt file based on the number of minutes the band has to play, minutes entered into a TextBox, and the songs genre, selected from a ComboBox. The songs cannot repeat and must be random.I have already coded the program to read the .txt file but have not clue where to start with the rest.
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Feb 20, 2012
I have a tab control application, each tab loads a particular user control and each of those user controls will then add other user controls that are used amongst other the user controls. For example, I have an "ucQuotes" page and an "ucInventory" page, when the specific tab is selected, the "uc****" user control is loaded on that page, and in the case of "ucQuotes" and "ucInventory" they both use a control called "ucPartNumber"; a user control consisting of a combobox, textbox, and button. I have no issues reusing the shared user controls, in this case. My problem arises with my "ucQuickPrice" control, as it is always present at the bottom of the tab control form (separate from the tabcontrol, but on the same form), and it too uses ucPartnumber.
Here's my issue, as I type into the ucPartnumber combobox, the text I type does not appear in the combobox, it appears in the textbox of the ucPartnumber control that is being used on the tabcontrol page. There are no shared instances of ucPartNumber, nor do I have this issue between typing on one tab page and the text showing on the user control of another tab page.I tried just creating the ucPartNumber controls on the ucQuickPrice control, not adding a new instance of ucPartnumber on the .Load event, and the issue persists.
The combobox(s) in question are bound programmatically with about 40,000 items, ".datasource = dataset.tablename" not to a bindingsource. Autocomplete is set to none, I added code to utilize tool tips and the basic combobox filtering functionality. Is this a bug, or is there something I'm neglecting? I'm about 95% complete with this application, and this just happened today. I made the decision, to just reuse the ucPartNumber control on the ucQuickPrice control (originallly it's size and orientation would not fit, but I added some coding to detect what parent is adding ucPartNumber and to change its appearance accordingly). Before, I made this change, I did not have this problem. And, in trying to go back to how I had things set up before the change, the problem will not go away. if the whole control within a control verbage I used is a bit confusing, let me know and I'll try to better explain what is happening. At this point, I'm going to close and reopen vbexpress, as when I started this ordeal, vb started acting weird and wanted me to save all my work, it usually does this before locking up.
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Aug 10, 2009
I had added the items
1
2
3 to the combobox.
Then I gave the "Select" to the text of the combobox.
How can I able to reset combobox to select the text("Select").
I had tried by giving -1 to the SelectedIndex. But it gives only Empty.
This is for VB.NET Windows Application
I have given an Image for your reference
Image path for the reference [URL]
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Mar 26, 2011
When I will click the suggested text shown in the combobox it will disappear.My Combobox btw is connected in a database.If I type Kev then kevin and kevsky will show at its suggestion then when I will click any of it ,the combobox text will be empty or will clear what I typed ("Kev") and will not show what I clicked.[code]
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Aug 11, 2009
I had added the items 1 2 3 to the combobox.
Then I gave the "Select" to the text of the combobox.
How can I able to reset combobox to select the text("Select").
I had tried by giving -1 to the SelectedIndex. But it gives only Empty.
This is for VB.NET Windows Application
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