Listview

[MDA]

Does anyone know if it is possible to Add/delete or change a subitem in a specific column?

I have found no reference to how this can be done.

Example:
A listview contains three columns. The first column contains "item1" I want to add a subitem to column three. Is this possible? I do NOT want to add a subitem to column two, only column three. It seems that subitems are added from Left - right. Anyway aroung this in .net?

Any clues??
M

 

[JohnYingling]

Think of the collection of ListViewItems as representing column 0. Each ListViewSubItem, 1 thru n, attached to a ListViewItem represents columns 1 thru n.

Column 0 Col 1 Col 2
ListViewItem(0)-->ListViewSubitem(0) ListViewSubitem(1)
ListViewItem(1)-->ListViewSubItem(0) ListViewSubItem(1)

listView1.Columns are used for Headers alignment etc of the ListViewItem and the attached ListViewSubItems.

http://www.VBResizer.com

Forms/Controls Resizing/Tabbing

http://www.VBCompare.com

Compare Code

http://www.VBSortGen.com

Generate Sort Class in VB

http://www.Vbcompare.com/Check.Htm(1979

Check To MS)

 

[MDA]

Thanks John,

So do you have an example of adding a subitem to column 2 for instance, without adding anything to column 1? Because I have not been able to find any .net reference that shows how this is possible.

For example I can use:
ListView1.Items(1).SubItems.Add("Mydata")

That will add Mydata in the first available subitem for item index 1 (this is not what I want)

If I try:

listview1.Items(1).SubItems(2).???
[There is no ADD allowed with this syntax] So how do I refer to the specific column.

I must be missing something!!

Thanks again,
M

 

[JohnYingling]

I am not sure I can untangle your view. Here is code that I used to display a Listview of File data contained in parallel arrays.
Imports System.Windows.Forms
......
Dim ColumnHeaders As ListView.ColumnHeaderCollection
Dim ColumnHeader As ListView.ColumnHeader
With ZipListView
.Clear()
.BeginUpdate()
.MultiSelect = True
If mlngFilename < 0 Then Exit Sub
ColumnHeaders = .Columns
End With
With ColumnHeaders
.Add("Name", -1, HorizontalAlignment.Left)
.Add("Date Modified", -1, HorizontalAlignment.Left)
.Add("Size", -1, HorizontalAlignment.Right)
.Add("Path", -1, HorizontalAlignment.Left)
End With

Dim objItems As ListView.ListViewItemCollection
Dim objItem As ListViewItem

objItems = ZipListView.Items
For I = 0 To maryFileName.GetUpperBound(0)
' Add New Item to list, col 0
objItem = objItems.Add(maryFileName(I))
' add subitems (columns?)( to returned item, cols 1 - 4
With objItem
.SubItems.Add(maryDateTime(I))
.SubItems.Add(marySize(I).ToString)
.SubItems.Add(maryPathName(I))
End With
Next
ZipListView.EndUpdate()

http://www.VBResizer.com

Forms/Controls Resizing/Tabbing

http://www.VBCompare.com

Compare Code

http://www.VBSortGen.com

Generate Sort Class in VB

http://www.Vbcompare.com/Check.Htm(1979

Check To MS)