public FlagCheckedListBoxItem Add(ulong v, string c)
{
FlagCheckedListBoxItem item = new FlagCheckedListBoxItem(v, c);
this.Items.Add(item);
return(item);
}
protected override void OnItemCheck(ItemCheckEventArgs e)
{
base.OnItemCheck(e);
if (this.isUpdatingCheckStates)
{
return;
}
FlagCheckedListBoxItem item = this.Items[e.Index] as FlagCheckedListBoxItem;
if (item.Value == 0)
{
this.flagValue = 0;
}
else if (e.NewValue == CheckState.Checked)
{
this.flagValue |= item.Value;
}
else if (e.NewValue == CheckState.Unchecked)
{
this.flagValue &= ~item.Value;
}
this.UpdateCheckedItems();
this.OnFlagValueChanged();
}
protected ulong GetCurrentValue()
{
ulong sum = 0;
for (int i = 0; i < this.Items.Count; i++)
{
FlagCheckedListBoxItem item = this.Items[i] as FlagCheckedListBoxItem;
if (this.GetItemChecked(i))
{
sum |= item.Value;
}
}
return(sum);
}
protected void UpdateCheckedItems()
{
this.isUpdatingCheckStates = true;
// Iterate over all items
for (int i = 0; i < this.Items.Count; i++)
{
FlagCheckedListBoxItem item = this.Items[i] as FlagCheckedListBoxItem;
if (item.Value == 0)
{
this.SetItemChecked(i, flagValue == 0);
}
else
{
this.SetItemChecked(i, (item.Value & flagValue) == item.Value && item.Value != 0);
}
}
this.isUpdatingCheckStates = false;
}