linked listbox or other lined control

[mutley]

Hi

How can I to build a linked Lisbox, when walk in lisbox1 show data in lisbox2 ?

I Search some example, but not found

Tia

[DataMiser]

You would need to write some code to display what you want in list2 which gets executed when you select an item in list1.

[mutley]

You would need to write some code to display what you want in list2 which gets executed when you select an item in list1.

When Choice Listbox1 , show me data in listbox 2 etc, how can to do it ?

[DataMiser]

If you are looking for that type of display then listboxes would not be my first choice.
VB includes controls that do this easily. namely the drivelistbox, dirlistbox and filelistbox controls.

It takes only one line of code in the drivelist and one line in the dir list to handle what you are doing

In the drivelist change event you simply use

dir1.path=drive1.path

and in the dirlist change event you use

file1.path=dir1.path

The file list also has a pattern property so you can show only files that match a given pattern such as "*.txt" for example


If you want to do it with regular list boxes then you will have to write code to put entries into the list boxes as needed.

[Elroy]

@mutley, I'm assuming your drives/folders/files is just an example. However, even with that example, it makes me think that you should look into the treeview control. For lists with a hierarchical nature, it's the perfect control.

However, I must admit that I do some things somewhat similar to what you're suggesting. Basically, I just always do my work in the ListBox_Click event, more-or-less reserving the ListBox_DblClick event to do something further with the item.

I also occasionally use the ListView control when there's just one level to the hierarchy. The following is a form with three separate ListViews on it. On two of the three ListView controls, you can clearly see where there's a hierarchical structure. I also (more-or-less) also achieve a third level of the hierarchy with the use of tooltips.

Just some ideas for you. It'd be nice if you outlined what you're actually trying to do.

Regards,
Elroy

[mutley]

@mutley, I'm assuming your drives/folders/files is just an example. However, even with that example, it makes me think that you should look into the treeview control. For lists with a hierarchical nature, it's the perfect control.

However, I must admit that I do some things somewhat similar to what you're suggesting. Basically, I just always do my work in the ListBox_Click event, more-or-less reserving the ListBox_DblClick event to do something further with the item.

I also occasionally use the ListView control when there's just one level to the hierarchy. The following is a form with three separate ListViews on it. On two of the three ListView controls, you can clearly see where there's a hierarchical structure. I also (more-or-less) also achieve a third level of the hierarchy with the use of tooltips.

Just some ideas for you. It'd be nice if you outlined what you're actually trying to do.

Regards,
Elroy

Thank you for your answer

But I put only example , I need two (or 3) listbox linked
I have a textfile with 14 digits
The digits can be
1 ,2 3 4,5 6 7 , are combination the binary digits 001 => 1 , 010 => 2 , 100 => 4... 111 => 7
[pre]
11122444444444
11242244444444
11414244444444
11414444444444
12142444444444
12224444444444
12422244444444
14144244444444
14212244444444
14212444444444
14424444444444
21144444444444
21224244444444
21422444444444
22112444444444
22214244444444
22444244444444
22444444444444
24122244444444
24242444444444
24244444444444
24412244444444
41112244444444
41214444444444
41442444444444
42124244444444
42124444444444
42242244444444
42412444444444
44114444444444
44222444444444
44444244444444
11124222444444
11142222444444
11214222444444
11412222444444
11412422444444
12242422444444
12424422444444
14144422444444
14222222444444
14414222444444
21122222444444
21142422444444
21224422444444
21444222444444
22144222444444
22214422444444
22412222444444
24112422444444
24242222444444
24244222444444
24422422444444
41114422444444
41242422444444
42122222444444
42122422444444
42224222444444
42414222444444
42442222444444
44124222444444
44212222444444
44224422444444
44444422444444
11124224444444
11222424444444
11444424444444
12112224444444
12112424444444
12244224444444
12424424444444
14122424444444
14214424444444
14442224444444
21142224444444
21142424444444
21212224444444
21414424444444
22124424444444
22222224444444
22442424444444
24114224444444
24242424444444
24244424444444
24424224444444
41114424444444
41244224444444
41422224444444
41422424444444
42144424444444
42212424444444
42414224444444
44142224444444
44224224444444
44224424444444
44412424444444
11122442444444
11244442444444
12114242444444
12114442444444
12212242444444
12422242444444
12444242444444
14112242444444
14212442444444
14224242444444
14442442444444
21114242444444
21212442444444
21442242444444
22142242444444
22222442444444
22424242444444
22444442444444
24124442444444
24242242444444
24244242444444
24414442444444
41112242444444
41144242444444
41222242444444
41424242444444
41424442444444
42244442444444
42412442444444
44142442444444
44214242444444
44422242444444
[/pre]
I must read this file text and for each row try to found other line with 1 or 2 digits different , if found I load other Listbox

Then would Like when "walking" in listbox1 show me data in listbox2



After way to do It , I put a other listbox and a button and to choice what line to join with other, Example

11122444444444
12142444444444
13162444444444

There are two differences 2th and 4th digits then I make a OR operation
1 or 2 => 3
2 or 4 ==> 6
two line turn one => 13162444444444

I would like to know how can I to Link 2 listbox as runs through the lines

[DataMiser]

That is far from the first example you showed and takes us back to what I said at first which is that you will have to write code to populate the list with what you want to see in it.

In other words when an item is selected in list1 you need to execute some code that clears list2 and adds items to list 2 based on what was selected in list one.

There is no way to link list boxes, it is just a matter of rebuilding the list.

[mutley]

That is far from the first example you showed and takes us back to what I said at first which is that you will have to write code to populate the list with what you want to see in it.

In other words when an item is selected in list1 you need to execute some code that clears list2 and adds items to list 2 based on what was selected in list one.

There is no way to link list boxes, it is just a matter of rebuilding the list.

Thank you very much

Then the only way to do is when click a item lisbox1 I must clear listbox 2 and rebuild ?

[DataMiser]

Either that or have multiple listboxes that are not visible and show the one that has in it what you want when you want it.

[Elroy]

Option Explicit
'
Dim vAy As Variant
'

Private Sub Form_Load()
    Dim i As Long
    vAy = Array("11122444444444", "11242244444444", "11414244444444", "11414444444444", "12142444444444", "12224444444444", "12422244444444", "14144244444444", "14212244444444", _
                "14212444444444", "14424444444444", "21144444444444", "21224244444444", "21422444444444", "22112444444444", "22214244444444", "22444244444444", "22444444444444", _
                "24122244444444", "24242444444444", "24244444444444", "24412244444444", "41112244444444", "41214444444444", "41442444444444", "42124244444444", "42124444444444", _
                "42242244444444", "42412444444444", "44114444444444", "44222444444444", "44444244444444", "11124222444444", "11142222444444", "11214222444444", "11412222444444", _
                "11412422444444", "12242422444444", "12424422444444", "14144422444444", "14222222444444", "14414222444444", "21122222444444", "21142422444444", "21224422444444", _
                "21444222444444", "22144222444444", "22214422444444", "22412222444444", "24112422444444", "24242222444444", "24244222444444", "24422422444444", "41114422444444", _
                "41242422444444", "42122222444444", "42122422444444", "42224222444444", "42414222444444", "42442222444444", "44124222444444", "44212222444444", "44224422444444", _
                "44444422444444", "11124224444444", "11222424444444", "11444424444444", "12112224444444", "12112424444444", "12244224444444", "12424424444444", "14122424444444", _
                "14214424444444", "14442224444444", "21142224444444", "21142424444444", "21212224444444", "21414424444444", "22124424444444", "22222224444444", "22442424444444", _
                "24114224444444", "24242424444444", "24244424444444", "24424224444444", "41114424444444", "41244224444444", "41422224444444", "41422424444444", "42144424444444", _
                "42212424444444", "42414224444444", "44142224444444", "44224224444444", "44224424444444", "44412424444444", "11122442444444", "11244442444444", "12114242444444", _
                "12114442444444", "12212242444444", "12422242444444", "12444242444444", "14112242444444", "14212442444444", "14224242444444", "14442442444444", "21114242444444", _
                "21212442444444", "21442242444444", "22142242444444", "22222442444444", "22424242444444", "22444442444444", "24124442444444", "24242242444444", "24244242444444", _
                "24414442444444", "41112242444444", "41144242444444", "41222242444444", "41424242444444", "41424442444444", "42244442444444", "42412442444444", "44142442444444", _
                "44214242444444", "44422242444444")
    '
    For i = LBound(vAy) To UBound(vAy)
        List1.AddItem vAy(i)
    Next i
End Sub

Private Sub List1_Click()
    Dim iDiff() As Long
    Dim s As String
    Dim iPtr As Long
    Dim iVal As Long
    Dim i As Long
    '
    If List1.ListIndex = -1 Then Exit Sub
    '
    s = List1.List(List1.ListIndex)
    '
    ReDim b2(LBound(vAy) To UBound(vAy))
    For i = LBound(vAy) To UBound(vAy)
        For iPtr = 1 To 14
            If Mid$(s, iPtr, 1) <> Mid$(vAy(i), iPtr, 1) Then b2(i) = b2(i) + 1
        Next iPtr
    Next i
    '
    List2.Clear
    For i = LBound(vAy) To UBound(vAy)
        If b2(i) = 1 Or b2(i) = 2 Then List2.AddItem vAy(i)
    Next i
End Sub

New project, List1 and List2 thrown onto Form1. And then the above code in Form1.

That's at least one way to do it.

Enjoy,
Elroy

p.s. I followed your specifications exactly. If you vary them, you may get errors.

p.s. #2. I could highlight the differences the way you've done it using ListView, but not ListBox.