public FlagCheckedListBoxItem Add(int v, string c)
{
FlagCheckedListBoxItem item = new FlagCheckedListBoxItem(v, c);
Items.Add(item);
return(item);
}
protected void UpdateCheckedItems(FlagCheckedListBoxItem composite, CheckState cs)
{
if (composite.value == 0)
{
UpdateCheckedItems(0);
}
int sum = 0;
for (int i = 0; i < Items.Count; i++)
{
FlagCheckedListBoxItem item = Items[i] as FlagCheckedListBoxItem;
if (GetItemChecked(i))
{
sum |= item.value;
}
}
if (cs == CheckState.Unchecked)
{
sum = sum & (~composite.value);
}
else
{
sum |= composite.value;
}
UpdateCheckedItems(sum);
}
protected override void OnItemCheck(ItemCheckEventArgs e)
{
base.OnItemCheck(e);
if (isUpdatingCheckStates)
{
return;
}
FlagCheckedListBoxItem item = Items[e.Index] as FlagCheckedListBoxItem;
UpdateCheckedItems(item, e.NewValue);
}
public int GetCurrentValue()
{
int sum = 0;
for (int i = 0; i < Items.Count; i++)
{
FlagCheckedListBoxItem item = Items[i] as FlagCheckedListBoxItem;
if (GetItemChecked(i))
{
sum |= item.value;
}
}
return(sum);
}
protected void UpdateCheckedItems(int value)
{
isUpdatingCheckStates = true;
for (int i = 0; i < Items.Count; i++)
{
FlagCheckedListBoxItem item = Items[i] as FlagCheckedListBoxItem;
if (item.value == 0)
{
SetItemChecked(i, value == 0);
}
else
{
if ((item.value & value) == item.value && item.value != 0)
{
SetItemChecked(i, true);
}
else
{
SetItemChecked(i, false);
}
}
}
isUpdatingCheckStates = false;
}
public FlagCheckedListBoxItem Add(FlagCheckedListBoxItem item)
{
Items.Add(item);
return(item);
}
public bool IsMemberFlag(FlagCheckedListBoxItem composite)
{
return(IsFlag && ((value & composite.value) == value));
}