[2008] Adding to a listbox

[overgrown]

Hey guys
i am starting to use VB for a uni assignment. this is the first time i have used it.
i am having trouble with it, and cant find tutorials on the net suitable to my version of VB (2008 express)

My first question, one of many

how do i make the list box editible by the user
i want to add to the listbox by adding in a textbox and clicking the 'add student' button.
then able to remove options by selecting them and clicking the 'remove'

when i exit the form and return to the menu form i want the contents of the list box to be avilable from all other forms, so where would this be saved.

i have attached a picture of the form to help you understand.


thanks for the help in advanced.
also if you know of any good tutorials that i could use to save your time.

Thanks !

[Deepak Sakpal]

1. how do i make the list box editible by the user
Ans: You cannot edit the items in listbox directly. You need to provide a workaround for that.

2. i want to add to the listbox by adding in a textbox and clicking the 'add student' button.
Ans: Listbox1.Items.Add("Hello")

3. able to remove options by selecting them and clicking the 'remove'
Ans: ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)

4. when i exit the form and return to the menu form i want the contents of the list box to be avilable from all other forms, so where would this be saved.
Ans: You need to write code to save contents of listbox either to database or to a file on hard-disk.

and yes... welcome to vbforums

[overgrown]

all good now, makes alot of sence.

i want to stop a name being being doubled in a listbox. so when i click the add button, it will check if the name from the text box is already in the listbox. if so it will pop up a message 'enter another name'

i am not sure what listbox function to use.

Dim studentname As String
        studentname = studenttextbox.Text
 
        If studentname = "" Then
            MessageBox.Show("You Need to enter a Name")
        ElseIf studentname Is studentnameslistbox.Text Then
            'how do i make it so the studentname cant already be in the listbox to prevent double up of names.
            MessageBox.Show("Name already in use")
 
        Else
            studentnameslistbox.Items.Add(studenttextbox.Text)
 
        End If
        studenttextbox.Clear()

i have got the message to appear if the textbox is blank so just need help with the next bit

cheers

[jmcilhinney]

ListBox.Items.Contains