//------------------------------------------------------
//
// Patterns Implementation
//
//------------------------------------------------------
#region ProxySimple Interface
// Returns a pattern interface if supported.
internal override object GetPatternProvider(AutomationPattern iid)
{
if (iid == InvokePattern.Pattern && WindowsListView.ListViewInvokable(_hwnd))
{
return(this);
}
if (iid == SelectionItemPattern.Pattern)
{
return(this);
}
if (iid == ValuePattern.Pattern && WindowsListView.ListViewEditable(_hwnd))
{
return(this);
}
if (iid == GridItemPattern.Pattern && IsImplementingGrid(_hwnd))
{
return(this);
}
if (iid == TogglePattern.Pattern && IsItemWithCheckbox(_hwnd, _item))
{
return(CreateListViewItemCheckbox());
}
if (iid == ScrollItemPattern.Pattern && WindowScroll.IsScrollable(_hwnd))
{
return(this);
}
return(null);
}
void IScrollItemProvider.ScrollIntoView()
{
if (_listBox._parentedByCombo && !SafeNativeMethods.IsWindowVisible(_hwnd))
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
if (!WindowScroll.IsScrollable(_hwnd))
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
// It is assumed that in a listbox an item will always be smaller than the scrolling area
Misc.ProxySendMessage(_hwnd, NativeMethods.LB_SETTOPINDEX, new IntPtr(_item), IntPtr.Zero);
}
//------------------------------------------------------
//
// Patterns Implementation
//
//------------------------------------------------------
#region ProxySimple Interface
// Returns a pattern interface if supported.
internal override object GetPatternProvider(AutomationPattern iid)
{
if (iid == SelectionItemPattern.Pattern)
{
return(this);
}
else if (iid == ScrollItemPattern.Pattern && WindowScroll.IsScrollable(_hwnd))
{
return(this);
}
else if (_listBox.IsWinFormCheckedListBox() && iid == TogglePattern.Pattern)
{
return(this);
}
return(null);
}
