Saving items in ListBox permenantly[RESOLVED]

[usamaalam]

Hi,

How can I save items in a list box permenantly, for example, on the click of button, prime numbers generate in the list box. I want to save the list of prime numbers so that next time when my application starts, the items should be there.

I want to use the listbox in the similar way for my application.

Thanx

[blindlizard]

You need to either save the items of the list box to a file or the registry, and then populate your list box from that file or registry key when your app starts

[usamaalam]

I know how to save the items in a text file, can you tell me how to save listbox items or text in registry and how to get the text back to the application.

Thanx

[blindlizard]

VB has 2 built in functions for that. SaveSetting and GetSetting. SaveSetting takes the following parameters appname, section, key, setting. And GetSetting takes appname, section, key, defaultHere is an example

Private Sub Command1_Click()
'When you click this button, the section SavedStuff will appear in HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
'The Key MyName will be in this section and its value will be blindlizard
    SaveSetting App.EXEName, "SavedStuff", "MyName", "blindlizard"
End Sub
 
Private Sub Command2_Click()
'If you have not clicked the first button ever, a msgbox will say NoName
'If you have already clicked the first button, the msgbox will say blindlizard
    MsgBox GetSetting(App.EXEName, "SavedStuff", "MyNmae", "No Name")
End Sub

[Geespot]

To save to a file

Open FileName For Output As #1
        For l = 0 To list1.ListCount - 1
            Print #1, list1.List(l)
        Next l
    Close #1

to open from file

List1.Clear
    Open FileName For Input As #1
        Do Until EOF(1)
           Line Input #1, str
           list1.AddItem str
        Loop
    Close #1

[BuggyProgrammer]

saving to and from the registry is slow. it also makes booting the OS slow so i wouldn't suggest using the registry.

[blindlizard]

Originally posted by BuggyProgrammer
saving to and from the registry is slow. it also makes booting the OS slow so i wouldn't suggest using the registry.

For something small like poulating a list box, this is probably not an issue.