I made a combo box and i need to know how to set one variable for each choice in the combo box. for example, my choices are poor, average, good, and superior. I want to set the "poor" variable as the poor option in the combo box and the "average" variable as the average option in the combo box and so on and so forth.
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The problem is when I run/debug my program in Visual Studio 2010, I have a comboBox/dropdown menu which allows the user to select from 3 combinations of years and interest rates. I can select and get output from choices 2 and 3 but not choice 1. Choice 1 being 7 years at 5.35%.
View 3 RepliesI have four drop down lists here and I've assigned the datasource and displaymemberproperties so they are populated by a table. When I run the program and select a choice, all four of them get updated with the new choice.
View 3 Repliesi would like to assign the value of a combobox to a variable and use this variable as a parameter on the insert statement.see code below,code 1 works ok,but code 2 brings an error relating to wrong datatype,i cant seem to find where the problem because i think i am doing everything right.
[Code]......
i would like code 2 to work so that i can assign the variables different values at different scenarios. column serialno is a foreign key from table Stock.
If I put:
variableName = namecombobox.selectedItem
or
Dim variablename as type = namecombobox.SelectedIndex
Visual studio gives me the error: "Option Strict disallows conversions from object to string.
I can fix this by putting:
variableName = convert.ToString(namecombobox.SelectedItem)
Are all values contained in a combobox automatically treated as a non-string even when they are string values (in this case "Male" & "Female") and what is the correct way of assigning the value selected in a combobox to a variable?
I would like to assign cboBegCust.SelectedValue to c and cboEndCust.SelectedValue to d
Dim c, d As String
cboBegCust.SelectedValue = "customer"
cboEndCust.SelectedValue = "customer"
[Code]....
Where and how do i create a global variable for a combobox? I need to use it on different forms.
View 6 RepliesOn Combobox how do I assign variable to those stings?
View 5 RepliesI have some subs that I use that I could make more universal if I could have a ComboBox variable so to speak.
Me.ComboBoxCMFrac.SelectionStart = Me.ComboBoxCMFrac.Text.Length
For the above code is there a way to enter a variable that could be set to whatever ComboBox you wanted. I tried
Dim ObjectComboBox As Object
ObjectComboBox = ComboBoxCMFrac
ObjectComboBox.SelectionStart = ObjectComboBox.text.length
It doesn't accept that in the editor but I'm showing you what I would like to do. If there's no way to do it fine but if there is a way I'd like to know how.
I'm getting the following error:"Incorrect syntax near 'Sysco' " when running the following statement using SqlDataAdapter:[code]
View 2 RepliesI am trying to have the index value of a selected item in a combobox returned to a variable. Then, if the variable = 1 (which would be the index of th second item in the combobox), I want a groupbox to be hidden (be invisible) on the form. Here is my code...Getting an error that says:
'ListIndex' is not a member of 'System.Windows.Forms.ComboBox'
Code:
Private Sub cbxAccounts_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim selection As Integer = CInt(cbxAccounts.ListIndex)
If selection = 1 Then gbxCheck.Hide()
End Sub
I am trying to have the index value of a selected item in a combobox returned to a variable. Then, if the variable = 1 (which would be the index of th second item in the combobox), I want a groupbox to be hidden (be invisible) on the form. Here is my code...Getting an error that says:[code...]
View 1 RepliesI have an array of comboboxes on a form. They are declared at the beginning. I wish to make these global variables so I can access them in another form. This does not appear to work.
Code something like this:
Public Class SecondScreen
Public OutputSelectControl() As Combobox = {O1, O2, O3, O4}
Where O1 O2 etc are the names of my comboboxes on this form. I wish to be able to address them from another form like so
localformvariablehere = OutputSelectControl(integervariablehere).Index
I have 13 variables, all called Items1, Items2, Items3 and so on. I have a combo box with items in, each time I click a button I want it so whatever is selected is stored in a variable and if the button is selected again then it stores whatever is selected in the next variable. I know all the code for selecting items in a combo box and transferring it to a variable but the problem I cannot do is the part where each time a button is clicked it stores whatever is selected in the combo box to the next variable.
View 9 RepliesI am about to start developing my second application in VB2008. The need is that it has to run on a network enviorment, probably under windows nt, the database has to be on the server so everybody uses the same data. The database is suppose to contain a lot of data on many tables, whatīs the ebst way to go? Access, SQL, foxpro dbf? Also what kind of project am I suppose to start? a windows app? or some kind of .net app.? I am sorry if I am saying dumb stuff itīs just that I am a rookie. Have in mind that after I build the application, many users have to have access to it from different computers and I also want the database to be availbale for a future website with forms and queries and stuff taken from the same database, is ASP the best choice for that purppose?
View 6 RepliesI'm developing a form that displays conference attendee data.I have a panel control on this form and would like to put a series of buttons at the bottom of this form that will open other forms in the panel. So for example, there would be a button to open the Address form, another button to open the Email form, and so on.There will be 10 buttons total. I have the Address and Email forms set up so far and it seems to work pretty slick.
Before I go any further, is this the best way to do this? FWIW, all forms will have a datarepeater control on them since there can be multiple addresses per attendee, multiple emails, etc.
I have a combo box which is set up with the follow properties and is populated with data and one blank row.
DropDownStyle = DropDownList
sometimes i get a message box even thought something is selected, what could be wrong?[code]...
I have created a small sql database using new data source. i have placed buttons to move to next,previous,first and last row but i am wondering if there is a way of making a button which would randomly pick a row with information from database or just make it randomize them before they are appearing on the screen.
At first i have tried creating random number generator and then joining it with the coulmns in the database. I failed in the end even though i thought it was going to work. Then i thought maybe i have to change the query as in, instead of "Select that and that and that from database" i thought i have to write "Select that and that from database sort by rand", i also saw that some people write limit 1 or more afterwards but i have no clue what it is and didnt use it. Anyhow i tried that query and it didnt work.
EDIT: I also thought about adding all questions into array, or use some sort of indexing, but i have to use database as the requirement.
Also if anyone would be willing to give me an advise of what is best book i could buy, which would cover databases in sql and some beginner/intermediate programming in visual basic.
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
If CheckBox1.Checked = True Then
[code].....
Has anyone ever set up a Multiple choice test before?
View 4 RepliesI'm not great with VB and I'm having some trouble with my University assignment at the moment.I'm trying to code a multiple choice program with several forms with different questions and then a scoring form
I'm not sure how to tell VB what the correct answer should be and how to display the scores in another form, the answers need to show how many correct in each section out of how many the user attemped to answer, so they can check scores before completing all the questions.
I'm currently quite new to VB and am trying to create a multiple choice questionnaire for work. This is a depression survey in which there are 23 groups of statements with 4 options per group. Every time a patient clicks an option, the next set of 4 questions comes up on the screen.
I'm trying to convert the old VB4 code into the new VB 2010 code. Before we were using a control array and the code looks a little something like this[code]...
sample_form.rtf (1.48MB). Number of downloads: 36. I have a working form to give specific choices to the user and retrieve the user's choice. (See code below and attached image in WordPad file.) I know I can use a global ("Public") variable to pass the text of the three choices from the calling form to the called form, but is there a way to pass these from one form to the other exclusively? Of course, my main objective is to have as little memory being used as possible. I would like to make the form in my example (frmDialogChoice) a generic form that can display any set of three choices.
code within calling form:
Dim intSwitchToMake As Integer
Dim insFrmDialogChoice As New frmDialogChoice
insFrmDialogChoice.ShowDialog()
[CODE]....
No doubt a simple question, but I'm a beginner (I learnt GW BritingASIC in 3 months long ago - but after 6 months grappling with vb 2008 I am still bewidered).
I have written a program that asks the user at run time to choose 1 of 40 buttons. These are themselves defined at run time. Whichever button is chosen the same algoritm will run (using different data). Question: To save writing the same Button_Click routine 40 times, what code should I write - and where in the program - to detect which of the 40 the user has chosen?
How do I list the column name as a choice in a combo box?
View 2 RepliesI have a list of ID's which each ID represent an item in a game. For example, ID "4022" represents "Basic Wand" (Example). I have a list of ID's, now what I want to do is: Have a listview which has each line for an item. When you click on any item, the PictureBox will change according to your ID choice.
How can I use these ID's and store them for each item (text)?
I need a multiple choice quiz but I've ran into some problems. So far i have 5 arrays: one for the questions and four for the answers. The question is displayed in a label and the answers on radio buttons. Problem one: I am using a random number generator to pull them but this allows them to be reused. How do I stop repeats. Problem two, my grading isn't always working.
View 3 RepliesLike how can i make it so it changes the text box to anyone of these words randomly
bob
somethinghere
somethinghere
somethinghere
[code]....
I need my program to let the user choose a text file by browsing the computer then the file path of the file needs to be set as the New StreamReader path so that the computer can open the file.
[Code]...
The following code is a what I have done in order to show a MsgBox when an exit ITEM on a MenuStrip is clicked then it will give two different choices Yes and No. If Yes then it will close the application but if No then it should stay on the same page.
Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitMenu.Click
MsgBox("Are you sure you want to exit the program?", MsgBoxStyle.YesNo)
If MsgBoxResult.Yes = True Then
Application.Exit()
End If
