/// <summary>
/// Convert forward function.
/// </summary>
/// <param name="value">The source value.</param>
/// <param name="targetType">The target type.</param>
/// <param name="parameter">The parameter.</param>
/// <param name="culture">The culture info.</param>
/// <returns>The converted value.</returns>
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
bool negated = false;
if (parameter != null)
{
if (!bool.TryParse(parameter.ToString(), out negated))
{
negated = false;
}
}
if (value == null)
{
return(negated ? Visibility.Visible : Visibility.Collapsed);
}
IEnumerable list = value as IEnumerable;
if (!(list is string) && list != null && IEnumerableHelper.GetItemCount(list) > 0)
{
return(negated ? Visibility.Collapsed : Visibility.Visible);
}
if (value != null && !string.IsNullOrEmpty(value.ToString()))
{
return(negated ? Visibility.Collapsed : Visibility.Visible);
}
return(negated ? Visibility.Visible : Visibility.Collapsed);
}
/// <summary>
/// Updates the items source of a split items control.
/// </summary>
/// <param name="splitItemsControl">The split items control.</param>
public static void UpdateItemsSource(ISplitItemsControl splitItemsControl)
{
#if !SILVERLIGHT
if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(splitItemsControl as DependencyObject))
{
return;
}
#endif
List <object> items = new List <object>();
if (splitItemsControl.PrimaryItemsSource != null)
{
items.AddRange(IEnumerableHelper.GetItems(splitItemsControl.PrimaryItemsSource));
if (items.Count > 0)
{
for (int i = 0; i < items.Count; i++)
{
if (splitItemsControl.PrimaryItemsSourceHeader != null)
{
splitItemsControl.AddItemHeader(items[i], null);
}
if (splitItemsControl.AddShortcutKeysToPrimaryItems && i <= 10)
{
splitItemsControl.AddItemShortcutKey(items[i], ShortcutKeyHelper.GetKeyFromIndex(i));
}
else
{
splitItemsControl.RemoveItemShortcutKey(items[i], ShortcutKeyHelper.GetKeyFromIndex(i));
}
splitItemsControl.RemoveItemSplit(items[i]);
}
splitItemsControl.AddItemHeader(items[0], splitItemsControl.PrimaryItemsSourceHeader);
}
}
if (splitItemsControl.SecondaryItemsSource != null)
{
if (items.Count > 0)
{
splitItemsControl.AddItemSplit(items[items.Count - 1]);
}
int itemCount = items.Count;
items.AddRange(IEnumerableHelper.GetItems(splitItemsControl.SecondaryItemsSource));
if (splitItemsControl.SecondaryItemsSourceHeader != null && items.Count > itemCount)
{
for (int i = itemCount; i < items.Count; i++)
{
splitItemsControl.AddItemHeader(items[i], null);
splitItemsControl.RemoveItemSplit(items[i]);
}
splitItemsControl.AddItemHeader(items[itemCount], splitItemsControl.SecondaryItemsSourceHeader);
}
}
if (splitItemsControl.ShowCustomValueOption && splitItemsControl.CustomValueItem != null)
{
if (items.Count > 0)
{
splitItemsControl.AddItemSplit(items[items.Count - 1]);
}
items.Add(splitItemsControl.CustomValueItem);
}
if (splitItemsControl.OtherItemsSource != null && splitItemsControl.ShowOtherItems)
{
if (items.Count > 0)
{
splitItemsControl.AddItemSplit(items[items.Count - 1]);
}
int itemCount = items.Count;
items.AddRange(IEnumerableHelper.GetItems(splitItemsControl.OtherItemsSource));
if (splitItemsControl.OtherItemsSourceHeader != null && items.Count > itemCount)
{
for (int i = itemCount; i < items.Count; i++)
{
splitItemsControl.AddItemHeader(items[i], null);
splitItemsControl.RemoveItemSplit(items[i]);
}
splitItemsControl.AddItemHeader(items[itemCount], splitItemsControl.OtherItemsSourceHeader);
}
}
else if (splitItemsControl.ShowOtherOption)
{
if (items.Count > 0)
{
splitItemsControl.AddItemSplit(items[items.Count - 1]);
}
items.Add(splitItemsControl.OtherItem);
}
splitItemsControl.ItemsSource = items;
#if !SILVERLIGHT
if (splitItemsControl is SplitComboBox)
{
object selectedItem = null;
foreach (object item in items)
{
SplitComboBoxItem splitComboBoxItem = item as SplitComboBoxItem;
if (splitComboBoxItem != null && splitComboBoxItem.IsSelected)
{
selectedItem = item;
break;
}
}
if (selectedItem != null)
{
splitItemsControl.SelectedItem = selectedItem;
}
}
#endif
}