Populate Combo Box Or List Box From Text File?
Dec 26, 2010
I'm trying to populate a List Box or Combo Box (either or, I feel like both would be very similar in how the code is written) when you load the form. Here is what I have right now:
<a href="http://s2.photobucket.com/albums/y11/funkyfries222/?action=view¤t=ForumHelp.png" target="_blank"><img src="http://i2.photobucket.com/albums/y11/funkyfries222/ForumHelp.png" border="0" alt="Photobucket"></a>
When you first open the program it gives you a form with either a list box or combo box (not sure which one I want to use yet) and then an add button to add a name to the list. It shows the from where you enter a name and then when you add a name it adds it to a text file that I have saved onto the desktop. It keeps the names on separate lines and I want each line in the text file to be an item in a list box...
Here is the code for the first form:
Public Class frmEmployeesMeat
Private Sub frmEmployeesMeat_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
frmHours.Visible = False
[code]....
View 4 Replies
ADVERTISEMENT
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?
View 5 Replies
Feb 26, 2010
i have a combo box that on form load is populated but i need to know when i click an item, i will be able to code how to populate other combo and text boxes with data about the same person.
View 2 Replies
Nov 10, 2010
I have the following code to insert a record into the database [code]...
View 6 Replies
Sep 28, 2010
got a pizza shop and the assingment is to create a application which alows the user to take a customer's order... I have a combo box filled with all of the items you can order (data from an access file)... and I need to have it so that when you select an item, it shows up in a text box below... I keep getting an error message saying you can't convert datarowview to string..
here is some
Private Sub TakeOrders_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'PROJECT4DataSet.Items' table. You can move, or remove it, as needed.
Me.ItemsTableAdapter.Fill(Me.PROJECT4DataSet.Items)
End Sub
[code]....
View 3 Replies
Jun 16, 2009
I want the files names in a specific folder to show in a combox box. How can I accomplish this?
View 1 Replies
Nov 16, 2011
I am getting an error when i try to populate some combo boxes with a value, the combo box has values in and the right amount the code is getting the right number.
the error msg is "Object reference not set to an instance of an object."
View 7 Replies
Jun 13, 2009
with the code below thatprompts the user to select a row from the ListView1 control. The row selected is then used to update the Xml file with the text box content.The original code works well but I'd like to find out if there's a way to automatically select the ListView1 row based on matching what is in Cbox1 and
View 1 Replies
Dec 14, 2008
I'm very new to VB.net/Vb2005. I just finished my first semester learning VB and I'm working on a few personal projects to solidify/increase what I've learned this year. Right now I'm building a simple inventory application that will keep track of individual users at my job.
The problem I'm having is in trying to populate a comboBox with items from a text file. My goal is that when the application loads, a comboBox will be populated with the names of users(located in a text file.) Upon selecting a user, the application will read some other(like users name, windows version, computer name, etc) data from another text file and populate the applications text boxes with that information.
I know how to go about building most of the application, but the problem I'm running into is how to use a text file to populate the comboBox. If I use an array or a collection for the comboBox data, then the user list will be lost each time the application closes. Also, whenver a new user is added, that data will be lost, because the collection or orray will be lost each time the application ends. Also, I don't want to use a database for the program, just a simple file.
[code]...
View 11 Replies
Sep 24, 2008
I have a Combobox, set to DropDown style that is bound to a Collection.I want to enable the user to type text in the edit portion of the combo and if the value is not in the list SAVE the data in a collection if it is not already in the collection, of course it wouldn't be if it was not
View 4 Replies
May 7, 2010
Ok so I have a combo box that lists a set of names. What I want to do is match a selected name to a text file and read from it. The text file contains the same name and has grades listed below:
ex.
Johnny Bravo
30
10
View 5 Replies
Dec 8, 2011
am trying trying to write some code for a ComboBox that does the following:
1. Allow the user to enter text into the combo box to type entries contained in the list source.
2. Enable autocomplete to assist the user in selecting entries in the list source, both from dropped down state and non dropped down state.
3. Restrict the user from typing an entry that doesn't exist in the list source.
My requirements are:
1. The ComboBox must run some code after a selection has been made or the user has finished typing an entry (not after the focus has been moved to another control)
2. The code must only run once after the user has made a selection from the combobox or has finished typing an entry
The problem: To achieve the above functionality, I had to run code on numerous event's. Sureley there is a better way, here are the events and the reason for the code:
SelectedIndexChanged:This is the code that is run when the user makes a selection. No Mystery here
KeyDown:
Must Run
If e.KeyCode = Keys.Return Then
ComboBox1_SelectedIndexChanged(Nothing, Nothing)
End If
View 1 Replies
May 22, 2009
I am trying to create a log file which I am going to use to populate some controls (DataGridView or Treeview). I am trying to figure out if should use text files or XML files to do so. Effectively the log will highlight multiple phases in a client-side app. The log will be written to at various phases when the project is running. The user will always have the options move on to the next phase or save progress and exit the project. As such, I want the log file to highlight how far the user has progressed throught the various phases AND I want the log to highlight varous information from each phase. Whenever the user starts the project, they will be given the option to load existing log files. So the project will have to read these log files and append them where necessary as the user progresses.
I am not sure what the best way to do this is and below is a rudimentary approach using text files. As you can see, the top of the file would have a summary of all the phases and whether or not the user completed each phase. Next each phase would have a data section highlighting what data was stored along the way. I have used a ":" to denote each section. Then within each section I would obviously need to use a delimeter for all my data. So if Phase1 = True, then I would load all the pertinent data from "Phase1:" into the desired control. Can anyone provide an efficient way of doing this and provide some insight as to whether I should use XML instead. The phases my change during development and I am not sure yet which controls I will be using. Does XML provide more flexibility.
In summary I am looking to create, read/write and append log files and populate controls with the data in varous sections of the log file. Example:
Phase1 = True
Phase2 = True
Phase3 = False
Phase4 = False
[code]....
View 5 Replies
Feb 20, 2010
How can we add a list to a combo box from a txt or excel file when entering an account number. the details must only be displayed for each defferent acount information. for example. account no 3332 must show a name and telephone number in to separate comboboxes. although it must contain lets say 4 telephone numbers and 4 names that are located in a text document.
View 2 Replies
Nov 20, 2010
I need to to able to save multiple text-boxes and a combo-box to a text file. the thing is, when I go to save, I check out the .txt file manually and its saved all in one line, no spaces. when I go to "read" it with the 2nd part (<-----this is a 2 part Challenge) it even reads all from that one line in the text file. What i'm asking is how can I make my text-boxes saved in the text file on different lines. [Code]
View 10 Replies
Apr 20, 2010
I have tested the code for the DataSet and DataAdaptor and both work fine, and as test was able to place the MaxRows variable into one of the text boxes on my form so I know thats all ok. But I am now trying to use the function below to copy the 1st cell of each row into a combo box to populate the options and comes up with a null exception error but cant get my head around it.
[Code]...
View 1 Replies
Oct 23, 2011
I'm trying to populate a combo box with some data from a xml document, but so far all i'm getting is this error message in the combo box[code]...
View 2 Replies
May 8, 2012
I am new to Visual Basic and I'm trying to make a simple combo box that automatically populates from dataset. The table is from BaseMaterial with the column Material.
View 5 Replies
Feb 15, 2012
I have a form with one combo box and text box and buttons. please refer the snapshot with i have attached.I have the following code:
My Stored Procedure for inserting the data:
/*
Name: usp_InsertBranchSetup
[code]......
View 5 Replies
Mar 12, 2009
I'm trying to populate a combo box with a dataset, this sort of works, but everything is just appearing on the same line. I think this answer might be to put the dataset into an array, then put the array into the combo box.
...problem is, I'm not sure how to do this! My code thus far is,
Dim usernameList As Array
'Retrieve usernames where player has available status
GetFilteredData()
[Code].....
View 1 Replies
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]....
View 10 Replies
Jun 22, 2010
I am currently stuck in one part of my application. I have two combo boxes that i am having the users select from. The first combo box is simply bound to a datatable. that is working properly. The second one i need to populate off another datatable after sorting out what the first one is requesting. Basically it's choosing a line number on the first box and then selecting the machine associated with that line number.[code]...
View 4 Replies
Jun 6, 2011
can someone please give me basic steps on how to hard code a combo box to display a column from a database?
View 21 Replies
Aug 15, 2011
I want to fill data in my combo box using Add range method.
cboFirst.Items.Add("Sunday")
cboFirst.Items.Add("Monday")
cboFirst.Items.Add("Tuesday")
[Code]....
This is how im filling my combo with days. i want to do the Same but by using Add Range Method.
View 2 Replies
May 1, 2011
Im trying to pooulate a combo box in vb.net 2008 with information from my access database, but I have no idea how to do thi :S im trying to get it so that the customer names from the database appear in the combo box this is as far as i've gotten for my form load.[code]
View 4 Replies
Mar 10, 2011
I am currently writing a program that needs the use of a database. At the moment I am trying to get a simple combobox working.The problem I am having is that I have never done any work with databases and VB08.I am using an access database that has the fields SMTP, Port, SSL
I want to populate a combo box with the field SMTP and from there I want 2 other labels to be filled in with the port and ssl details I was wondering a) How do I set the connection up with Visual Basic (within the database I am using MySQL to get the information) b) How do I go about populating the combo box?
View 1 Replies
Jun 17, 2010
How to populate a combo box using SQL Data Reader in DAL, BAL and UI atmosphere. Please find below my code snippets and correct me if I'm wrong anywhere in this code.
'DAL Code
Public Function PopulateComboBox() As SqlDataReader
_cnCon = New SqlConnection(_conString)
_cnCon.Open()
[Code]....
What should be the UI code? Is the code specified in DAL and BAL is correct? I knoiw how to fill the combo box with values from SQL Data Reader. But I dont know how this can be done in 3 Tier application.
View 2 Replies
Sep 1, 2010
Is there a way to populate a combox with a list of available drive letters? I've tried the following code but could not gt it to wrok.
[Code]...
View 6 Replies
Oct 19, 2011
So I feel like im pretty close, but I also have a feeling I am mixing up StreamReader and ReadAllLines[code]...
View 1 Replies
Jun 19, 2009
I am using these codes to populate a Combo o a Listview. What i want is to populate de List or a Combo depending a selected value.
cn = New SqlConnection(stringdeconexion)
cn.Open()
Dim sql As String
[Code].....
View 1 Replies
