invisible – Owl's Blog on .NET development http://www.componentowl.com/blog Component Owl codes Better ListView control all night so you don't have to. Tue, 04 Sep 2018 13:10:05 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.8 Hiding Column Headers in Better ListView http://www.componentowl.com/blog/hiding-column-headers-in-better-listview/ http://www.componentowl.com/blog/hiding-column-headers-in-better-listview/#respond Mon, 27 Aug 2012 23:11:27 +0000 http://www.componentowl.com/blog/?p=803 Better ListView 3.2.0 and newer supports hiding column headers but keeping sub-items visible:

Hiding Column Headers

Hiding Column Headers

To hide column headers, simply set HeaderStyle property to BetterListViewHeaderStyle.None. There are other possible styles for all column headers:

  • None – column headers are hidden, but corresponding sub-items are still visible
  • Nonclickable – column headers are visible, but not interactive
  • Clickable – column headers interact with mouse (have hot and pressed state)
  • Sortable – column headers are clickable and sort the corresponding column when clicked
  • Unsortable – same as Sortable, but the column headers have unsorted state as well
  • Hidden – column headers are hidden with corresponding sub-items

These styles can be set on individual column headers as well through BetterListViewColumnHeader.Style property. This property is of type BetterListViewColumnHeaderStyle, which has the same values as BetterListViewHeaderStyle, plus Default value, which means that column header style is inherited from the HeaderStyle property.

When a single column header have style None, that column header is not drawn (only its background is visible) and corresponding sub-items are visible.

When all column headers have style None,  the whole panel with column headers hides (as seen on the above animation) and the sub-items remain visible. This effect is the as when all column headers have style Default and HeaderStyle is set to None.

]]> http://www.componentowl.com/blog/hiding-column-headers-in-better-listview/feed/ 0 Hiding Items in Better ListView http://www.componentowl.com/blog/hiding-items-in-better-listview/ http://www.componentowl.com/blog/hiding-items-in-better-listview/#respond Mon, 06 Feb 2012 16:23:15 +0000 http://www.componentowl.com/blog/?p=546 We currently introduced a BetterListViewItem.Visible property to allow hiding items visually, but keeping then in the Items collection:

Making items invisible

Making items invisible

The above image shows two groups of items. The first groups uses hiding of items with the Visible property, while the second group simply turns off drawing of ceratin items.

The first approach is useful when you need to hide item as if it is removed, but keep it actually within Items collection.

The second approach need to create new control inheriting from BetterListView, overrride the OnDrawItem method and set properties like BetterListViewDrawItemEventArgs.DrawImage to false or simply not call the base implementation of OnDrawItem.

The second (owner drawing) approach is useful when you need just to switch off display of item without changing the item layout.

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