public static void SetTask(this ListViewGroup group, string task)
{
var groupId = GetGroupId(group);
if (groupId >= 0)
{
using (var lvgroup = new ComCtl32.LVGROUP {
Task = task
})
SendMessage(new HandleRef(group.ListView, group.ListView.Handle), ComCtl32.ListViewMessage.LVM_SETGROUPINFO, groupId, lvgroup);
}
}
public static void SetFooter(this ListViewGroup group, string footer = null, HorizontalAlignment footerAlignment = HorizontalAlignment.Left)
{
var groupId = GetGroupId(group);
if (groupId >= 0)
{
using (var lvgroup = new ComCtl32.LVGROUP {
Footer = footer, Alignment = MakeAlignment(group.HeaderAlignment, footerAlignment)
})
SendMessage(new HandleRef(group.ListView, group.ListView.Handle), ComCtl32.ListViewMessage.LVM_SETGROUPINFO, groupId, lvgroup);
}
}
private static void SetState(ListViewGroup group, ComCtl32.ListViewGroupState state, bool value)
{
var groupId = GetGroupId(group);
if (groupId >= 0)
{
var lvgroup = new ComCtl32.LVGROUP(ComCtl32.ListViewGroupMask.LVGF_STATE);
{
lvgroup.SetState(state, value);
SendMessage(new HandleRef(group.ListView, group.ListView.Handle), ComCtl32.ListViewMessage.LVM_SETGROUPINFO, groupId, lvgroup);
}
}
}
public static void SetImage(this ListViewGroup group, int titleImageIndex, string descriptionTop = null, string descriptionBottom = null)
{
var groupId = GetGroupId(group);
if (groupId >= 0)
{
using (var lvgroup = new ComCtl32.LVGROUP {
TitleImageIndex = titleImageIndex
})
{
if (descriptionBottom != null)
{
lvgroup.DescriptionBottom = descriptionBottom;
}
if (descriptionTop != null)
{
lvgroup.DescriptionTop = descriptionTop;
}
SendMessage(new HandleRef(group.ListView, group.ListView.Handle), ComCtl32.ListViewMessage.LVM_SETGROUPINFO, groupId, lvgroup);
}
}
}
