CListCtrl is my preferred control. Most of the times I use it in 'report' mode, because it's a pretty way to show 'rows of data' that user can easily scroll, sort, view. But often I need a way to let user choose, which data are meaningful for him. You see, there is a nice
HDS_FILTERBAR on MSDN... but it was not there when I needed it! So, here is the
CFilterHeaderCtrl, that you can use alone or within a
This control is derived from a
CHeaderCtrl and is owner drawn. Here you can see the notification messages fired from the control to the parent window:
#define FLCN_FILTERCHANGING 101
#define FLCN_FILTERCHANGED 102
#define FLCN_SHOWINGEDIT 103
#define FLCN_BEGINFILTEREDIT 104
#define FLCN_ENDFILTEREDIT 105
FLCN_FILTERCHANGED are called before and after a filter is changed by the user. Here you can prevent a filter change. The message handler will receive the following
struct NMFILTERHDR : public NMHDR
FLCN_SHOWINGEDIT is called when the edit control is about to be shown.
FLCN_ENDFILTEREDIT are called when the user start editing one or more filters, moving arount with the TAB key. In the sample code, you can see how to track how many filters have been changed and in that moment you can reload the list, without having to reload for every
For every column you add, you can choose one of the following styles:
#define FILTER_NONE 0
#define FILTER_ENABLED 1
#define FILTER_DISABLED 2
Instead of using the
cFilterHeaderCtrl, you will find more useful to replace your
CListCtrl with the
CFilterListCtrl will replace the standard header control with the
CFilterHeaderCtrl and will forward to the parent, the notification messages.
I'm sure that you will find more answer to your questions looking around in the sample code. In the sample project you have to add your own code to reload the list!!!
Many many thanx to CodeProject and CodeGuru people for the many many articles on owner drawn and custom control implementation. Have fun!