Displaying An Array Item?
May 21, 2009
I have an app that I am developing to keep track of my members' names and phone #'s. I have all current names and numbers in a csv file and they are read into a structured array. The app can add, delete, and modify members. I have everything coded except the 'Modify' menu item. The list box is populated with only names at run time, I would like to have both the name and phone number displayed in the two text boxes I have on the form when a name is selected from the list box. I can get the name to display in the text box I have for names, but since the phone number is not in the list box I am wondering how I can get it into the appropriate phone text box. I used txtName.Text = lstMemberList.SelectedItem to get the name displayed but since the phone number is not in the lstMemberList list box I cannot figure out how to get it into the txtPhone text box.
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Apr 22, 2010
I have a list of names in a database and what i want is to get all of these names and display them in a label or a text box to the user on the website. I have tried to do this using a for loop but it is always overwriting the label each time. I have a list of 10 different names in the database and what it is doing is putting the first name in the label and then overwriting this with the second name and so on until it reaches the last name. I think i need to store each of the names from the database into an array or an arrayList and then make the label display all of the contents from the array or arrayList. The for loop i have used for this is:
Dim g As SQLadmin = New SQLadmin()
g.DB("SELECT nameOfPerson FROM Persons")
For i As Integer = 0 To g.array.GetLength(0) - 1
[code]....
i can select the names from the database and store them in an array then make the label display each of the names.
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Jul 25, 2010
I've been trying to feed a multi line textbox into a string array then check item by item if a string contains part of it.
[Code]...
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Aug 4, 2011
I have a data set that I am pulling from. I have no problem pulling dats into a text field but it doesn't sidplay in a drop dowl list.The Try witha text field brings back the dat without a hitch, but the Try with a ddl bring back nothing
[Code]...
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Mar 11, 2010
In my program theres a form where the user enters the ID number and other details of a customer. i want the program to be able , If the ID number already exists when the user enters it and clicks on ok, to display an error message telling them that the ID already exists otherwise it adds the id and the details to a database. Im not sure how i would do that im thinking it would be an SQL statement? not sure.
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Apr 30, 2012
I have a problem with combobox. I set the DrawMode into OwnerDrawVariable so I can draw items seperately with styles, but the characters of the items are now displaying blocks. The block characters are none ASCII. It used to display well but not now and I don't know what caused it to happen. I didn't change my system locale. At the same time, other combobox that have Normal DrawMode displays nicely fine.
My custom drawing code:
e.Graphics.DrawString(combo.Items(e.Index), combo.Font, b2, rect.X, rect.Y)
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Nov 1, 2010
How to display text in a rich text box when an item is selected in a listbox. Here's a snippet of my
Private Sub radGunsNRoses_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles radGunsNRoses.Click
'Declares songs into variables
Dim strSong1 As String = "1. Sweet Child O' Mine"
Dim strSong2 As String = "2. Novemeber Rain"
Dim strSong3 As Integer = "3. Welcome to the Jungle"
'Band Picture
[Code] .....
What I really want is that when radGunsNRoses is checked, the listbox displays the songs and when one is clicked, it shows the song's lyrics in the ritfSongs. Same thing goes for radACDC but the songs are different and the lyrics.
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Nov 24, 2009
I have a list view control and for each item I set to display an icon it will change the icons for the other items that already have icons, to the most recently added icon.
Here is my code.
vb.net
Dim ext As String = Strings.Right(e.Item.Text, 4)
Dim fileandparam As String = IconsInfo(ext).ToString
[Code].....
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Jul 18, 2012
How can i remove an array item by selecting an item from listobx and press remove/delete button?for an example, if i want remove index 2 from listbox, so the array should remove index 2 item and move the item of index 3 to index 2 and so on.
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Apr 29, 2012
I am trying to display payment details for each loan, but I am having problems displaying on the form.
Public Class MortgageDetailsCalculatorForm
Private Sub CalculateButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CalculateButton.Click
[Code]......
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Dec 7, 2009
I am having a hard time displaying the contents of a text file that i read into an array. I read the text of the text file into an array but then i need to display it but i can't seem to get it. I also need to create a criteria to match whatever letter is entered into the textbox and display the contents of the file only beginning with that letter. I know i have to use a substring to read only the first letter but I can't even display the contents of the file from out of the array. Here is what i have so far.
Dim sr As IO.StreamReader = IO.File.OpenText("CRAYONS.TXT")
Dim color(50) As String
Dim arrynum As Integer
[Code].....
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May 30, 2010
I started programming in VB many moons ago, but I put it down about a year ago. I picked back up a project I was working on a few years ago and Visual Studio 2008 Pro had to convert it. It seemed to work just fine but I wanted to make it "look .NETish", so I simply copied all the controls and code into a new project.The new project won't display information stored in static arrays on a Rich Text Box. The arrays are declared public in a code.vb file and the array is populated in the load event for the main form.I've tried inserting a "test" button to see if I could somehow get it to display trying a few different things. Essentially:
Private Sub cmdTest_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdTest.Click
Dim test As String = Gems(0)
[code].....
Has array conventions changed or something in the past year or so? How do I extract the information contained in Gems() that I have so maticulously entered so long ago
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Apr 25, 2011
I need to construct a small program that "stores" entered test scores into the program then when a button is clicked, it will display the scores with the appropriate names in the box below. The values are the names "Brian" "james" "jimmy" "jock" and "gok" and there are two test scores "main test" "small test".. I need to be able to "store" these in a "database" and then when the user clicks "show marks" it displays all the names with the marks in a table format. I'm totally screwed and i dont know where to start..I already have done a little coding for the gui such as a password entering system and all that works, all I need now is this storing thing.
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Sep 24, 2009
I need to use an array at any part of the project. It has been suggested to me to build an array and show its result in a combobox. Instead of having an input textbox, i will have a combobox which will display 10 common names which are kept in the array.
'Defines the array Names
Dim names(9) As String
'Defines the array's fields[code]......
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Sep 17, 2010
I need to convert hex values aa 01 00 17 f4 2f (as contained in byte array FrameData) to display in a label control as AA:01:00:17:F4:2F
HexDump(FrameData(2)) converts the aa (which has been converted to Decimal 170) into 31 37 30 !
similarly I need to convert hex data ('02 00' contained in byte array FrameData) as
0x0200."0x" & FrameData(1) + FrameData(2) displays the data as 0x20. How would I convert the '02 00' hex data to display as 0x0200?
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Jul 14, 2009
The assignment called for a VB.Net (not web based) program that would accept user input for the loan amount, interest rate, and term of loan, and display the monthly payment of the loan then list the loan balance and interest paid over the term of the loan. the list will be longer than the screen so use loops to display a partial list, hesitate, and then display more of the list. So, I did exactly that and the program works fine. However, after submitting this program for grading, The instructor for the class tells me, "One thing you should work on is not using a timer to pause.
You should not use a scroll bar either." He says I should work on loading the results into an array or use a loop with a counter that can be used to display a given number of results with a more results button for displaying more (but without a scroll bar?). Like I said, this program works fine and I am not asking anyone for any specific code (some sort of example would be great but not necessary) What I am asking for is an explanation of how I would go about loading results into an array to be used for displaying just partial results at a time in some way other than I used here: [Code]
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May 27, 2012
I have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?
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Apr 30, 2009
I'm calling a webservice that is returning an unknown quantity of images in the form of an a collection of byte arrays. (I can't change this) I need to display each image on a single aspx webpage. I'm currently using the Microsoft.Web.GeneratedImage control; [URL] to display the images.
[Code]...
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May 25, 2012
Regarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.
Imports System.Data.OleDb
Public Class Form5
Dim con As New OleDbConnection
[CODE].......................
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Nov 22, 2011
provide a simple example code for displaying a string array of (9x13) values in a datagridview control. I am lost in the complexity of data binding and datagridview controls. I am an experienced VB6 programmer and cannot seem to grasp the transition from flexgrid control to datagridview control.
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Feb 29, 2012
This is my source so far[code]...
At the moment it reads in what I have in a text file, splits it up based on where commas are placed and puts the split data into an array, i.e. if the text file is a,b,c it will split up the 3 characters and put them into an array.
What I want to know is, is it possible to write each item from the array into a new TextBox - in the same way that It adds 1 to the 'i' variable each time, except with each new item the TextBox it uses goes up by one, i.e. 'a' in TextBox1, then 'b' in Textbox2
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Mar 17, 2011
Here is my code as I have it
Code:
Public Class Form1
Dim OpePro(7) As String
[code].....
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Aug 10, 2010
How can I delete an item from an array in VB.NET?
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Dec 2, 2008
This is what I currently have but it's not deleting the items, just showing a message
Code:
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles btnDelete.Click
Dim strTitle As String = ""
[code]....
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Feb 23, 2011
I have an array of objects, I find the item by index, assign a value but then looking at the array the item doesn't show the updated value.
Public Structure Cheque
Public Id As String
Public Status As Byte
[code].....
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Jul 23, 2009
I'm loading a file into an ArrayList, then looping through the ArrayList and each time adding a DataRow to a Datatable, then using the Datatable as the DataSource for a GridView. My problem though is that the file has one field at the end that I don't want to display. I'm not sure though how to not to add it as a DataRow or what to do so that it won't be displayed. Do you know what I might do. This is my
' Declare and setup a StreamReader object to read the file
Dim objStreamReader As New StreamReader(fname)
Dim arrText As New ArrayList
[Code]....
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Apr 15, 2012
I am trying to get each item in a list box into a string array. However, I keep getting an index error and I am not sure why. I am doing this so i can perform a LINQ on the array.
Error:InvalidArgument=Value of '16' is not valid for 'index'.Parameter name: index
[code]...
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Jul 25, 2011
Module Dic_Select
Public DicDataSelect() As DicDataList
Public Selected_Dictionary_Name As New ArrayList
Public Function New_Dictionary(ByVal Dic_Name As String) As Boolean
For i As Integer = 0 To Selected_Dictionary_Name.Count - 1 Step +1
[Code] .....
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Jun 8, 2009
I am coding for a WPF application that has a ListView. I want to add values of one column of selected items in the listview to a string array.
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Jul 9, 2010
I'm having trouble trying to match a selected list item to a space in an array.
I'm trying to get the program to loop through the array and each time check if the contents of the array space match the selected list item, but I get errors when I try. I know I have the code wrong but I don't know how to fix it.
Private Sub lstMembers_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstMembers.SelectedValueChanged
Dim index As Integer = 0
[Code].....
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